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Ultrasound evaluation of techniques for internal jugular vein puncture in children / Avaliação ultra-sonográfica das técnicas de punção da veia jugular interna em crianças  

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Full Text Available SciELO Brazil | Language: English Abstract in portuguese OBJETIVO: Determinar pelo ultra-som qual o melhor acesso e posicionamento da criança com o intuito de se obter a melhor secção transversal da veia jugular interna direita (VJID), permitindo uma punção com maior segurança. MÉTODOS: Três possíveis acessos a VJID, anterior, lateral e posterior foram an [...] alisados pela ultrassonografia em uma sequência de diferentes posições da cabeça, estando o paciente em posição supina com ou sem um coxim sob a escápula; cabeça na posição neutra; (NPP E NP); rotação lateral da cabeça (CLRP e CLR), posição neutra com o paciente em posição de Trendlemburg a 30(0) (TDG). Para analisar os resultados foi aplicado um método estatístico com análise variada sobre os mesmos indivíduos. Procedimentos básicos: Avaliação ultrassonográfica em cada uma das posições propostas. RESULTADOS: Pela análise estatística dos resultados observou-se que a punção lateral estando o paciente em posição neutra, em Trendlemburg sem a colocação de coxim sob a escápula oferece uma área maior em comparação a todas as outras opções de punção e posicionamento do paciente (p Abstract in english PURPOSE: To determine by ultrasound which access and position the child must stay to obtain the best transversal section of the right Internal Jugular Vein (RIJV) allowing a safer puncture. METHODS: Three possible accesses to the RIJV, anterior, lateral and posterior, from 57 healthy children, were [...] analyzed through ultrasound images in a sequence of positions of the head, in supine position, with or without a roll under the scapula: head centered in neutral position with and without a roll (NPP and NP); contra lateral rotation with and without a roll (CLRP and CLR), neutral position and the patient raised in 30° in Trendelenburg position (TDG). To analyze the results it was applied one statistic method, with variation analysis to the same individuals. Basic Procedures: Ultrasound evaluation in each one of the proposed positions. RESULTS: The statistical analysis of the results observed that the lateral puncture with the patient in the neutral position, in Trendelemburg without a roll, offers a bigger area in comparison to all the other options of puncture and positioning of the patient (p

Sérgio Tomaz, Schettini; Luiz Fernando Ybarra Martins de, Oliveira; Harold Ruiz, Henao; Henrique Manoel, Lederman.

2008-10-01

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Ultrasound evaluation of techniques for internal jugular vein puncture in children Avaliação ultra-sonográfica das técnicas de punção da veia jugular interna em crianças  

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Full Text Available PURPOSE: To determine by ultrasound which access and position the child must stay to obtain the best transversal section of the right Internal Jugular Vein (RIJV allowing a safer puncture. METHODS: Three possible accesses to the RIJV, anterior, lateral and posterior, from 57 healthy children, were analyzed through ultrasound images in a sequence of positions of the head, in supine position, with or without a roll under the scapula: head centered in neutral position with and without a roll (NPP and NP; contra lateral rotation with and without a roll (CLRP and CLR, neutral position and the patient raised in 30° in Trendelenburg position (TDG. To analyze the results it was applied one statistic method, with variation analysis to the same individuals. Basic Procedures: Ultrasound evaluation in each one of the proposed positions. RESULTS: The statistical analysis of the results observed that the lateral puncture with the patient in the neutral position, in Trendelemburg without a roll, offers a bigger area in comparison to all the other options of puncture and positioning of the patient (pOBJETIVO: Determinar pelo ultra-som qual o melhor acesso e posicionamento da criança com o intuito de se obter a melhor secção transversal da veia jugular interna direita (VJID, permitindo uma punção com maior segurança. MÉTODOS: Três possíveis acessos a VJID, anterior, lateral e posterior foram analisados pela ultrassonografia em uma sequência de diferentes posições da cabeça, estando o paciente em posição supina com ou sem um coxim sob a escápula; cabeça na posição neutra; (NPP E NP; rotação lateral da cabeça (CLRP e CLR, posição neutra com o paciente em posição de Trendlemburg a 30(0 (TDG. Para analisar os resultados foi aplicado um método estatístico com análise variada sobre os mesmos indivíduos. Procedimentos básicos: Avaliação ultrassonográfica em cada uma das posições propostas. RESULTADOS: Pela análise estatística dos resultados observou-se que a punção lateral estando o paciente em posição neutra, em Trendlemburg sem a colocação de coxim sob a escápula oferece uma área maior em comparação a todas as outras opções de punção e posicionamento do paciente (p<0,0001. CONCLUSÃO: A melhor técnica para a punção da VJID em crianças foi a posição neutra em Trendlemburg, por punção lateral , sem a colocação de um coxim sob a escápula.

Sérgio Tomaz Schettini

2008-10-01

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Modelo experimental estável de aneurisma sacular em artéria carótida de suínos utilizando veia jugular interna Stable experimental model of carotid artery saccular aneurysm in swine using the internal jugular vein  

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Full Text Available OBJETIVO: Desenvolver um modelo experimental estável de aneurisma sacular em carótida de suínos utilizando veia jugular interna. MÉTODOS: Em 12 suínos sadios, com peso variando entre 25 e 50kg, cinco machos e sete fêmeas, foi confeccionado aneurisma na artéria carótida comum direita. Após arteriotomia elíptica, foi realizada anastomose terminolateral com coto distal de veia jugular interna. O volume do aneurisma era calculado de maneira que o valor não excedesse em 27 vezes o valor da área da arteriotomia. Após seis dias, era realizada angiografia e análise microscópica do aneurisma para avaliar perviedade e trombose parcial ou total. RESULTADOS: Houve ganho de peso significante dos suínos no intervalo de tempo entre a confecção do aneurisma e a angiografia (p = 0,04. Foi observada perviedade aneurismática em dez suínos (83%. Ocorreram infecções de feridas operatórias em dois animais (16,6%, ambas com início de aparecimento em três dias após a confecção do aneurisma. Análise histológica dos aneurismas mostrou trombos ocluindo parcialmente a luz em nove suínos (75%. Nesses animais, observou-se que, em média, 9% da luz aneurismática estava preenchida por trombos. CONCLUSÃO: Pôde ser desenvolvido um modelo experimental estável de aneurisma sacular em carótida de suínos utilizando veia jugular interna.OBJECTIVE: To develop an experimental model of stable saccular aneurysm in carotid of pigs using the internal jugular vein. METHODS: In 12 healthy pigs, weighing between 25 and 50kg, five males and seven females, we made a right common carotid artery aneurysm. After elliptical arteriotomy, we carried out a terminolateral anastomosis with the distal stump of the internal jugular vein. Aneurysm volume was calculated so that the value did not exceed 27 times the area of the arteriotomy. After six days angiography and microscopic examination were performed to assess patency of the aneurysm and the presence of total or partial thrombosis. RESULTS: There was a significant weight gain of pigs in the time interval between the manufacture of the aneurysm and angiography (p = 0.04. Aneurysmal patency was observed in ten pigs (83%. Operative wound infections occurred in two animals (16.6%, both with early onset, three days after the making of the aneurysm. Histological analysis showed aneurysm thrombus partially occluding the light in nine pigs (75%. In these animals, it was observed that on average 9% of the aneurysmal diameter was filled with thrombi. CONCLUSION: It was possible to develop a stable experimental model of saccular aneurysms in pig carotid artery by use of the internal jugular vein.

Severino Lourenço da Silva Júnior

2013-04-01

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Modelo experimental estável de aneurisma sacular em artéria carótida de suínos utilizando veia jugular interna / Stable experimental model of carotid artery saccular aneurysm in swine using the internal jugular vein  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Desenvolver um modelo experimental estável de aneurisma sacular em carótida de suínos utilizando veia jugular interna. MÉTODOS: Em 12 suínos sadios, com peso variando entre 25 e 50kg, cinco machos e sete fêmeas, foi confeccionado aneurisma na artéria carótida comum direita. Após arteriotom [...] ia elíptica, foi realizada anastomose terminolateral com coto distal de veia jugular interna. O volume do aneurisma era calculado de maneira que o valor não excedesse em 27 vezes o valor da área da arteriotomia. Após seis dias, era realizada angiografia e análise microscópica do aneurisma para avaliar perviedade e trombose parcial ou total. RESULTADOS: Houve ganho de peso significante dos suínos no intervalo de tempo entre a confecção do aneurisma e a angiografia (p = 0,04). Foi observada perviedade aneurismática em dez suínos (83%). Ocorreram infecções de feridas operatórias em dois animais (16,6%), ambas com início de aparecimento em três dias após a confecção do aneurisma. Análise histológica dos aneurismas mostrou trombos ocluindo parcialmente a luz em nove suínos (75%). Nesses animais, observou-se que, em média, 9% da luz aneurismática estava preenchida por trombos. CONCLUSÃO: Pôde ser desenvolvido um modelo experimental estável de aneurisma sacular em carótida de suínos utilizando veia jugular interna. Abstract in english OBJECTIVE: To develop an experimental model of stable saccular aneurysm in carotid of pigs using the internal jugular vein. METHODS: In 12 healthy pigs, weighing between 25 and 50kg, five males and seven females, we made a right common carotid artery aneurysm. After elliptical arteriotomy, we carrie [...] d out a terminolateral anastomosis with the distal stump of the internal jugular vein. Aneurysm volume was calculated so that the value did not exceed 27 times the area of the arteriotomy. After six days angiography and microscopic examination were performed to assess patency of the aneurysm and the presence of total or partial thrombosis. RESULTS: There was a significant weight gain of pigs in the time interval between the manufacture of the aneurysm and angiography (p = 0.04). Aneurysmal patency was observed in ten pigs (83%). Operative wound infections occurred in two animals (16.6%), both with early onset, three days after the making of the aneurysm. Histological analysis showed aneurysm thrombus partially occluding the light in nine pigs (75%). In these animals, it was observed that on average 9% of the aneurysmal diameter was filled with thrombi. CONCLUSION: It was possible to develop a stable experimental model of saccular aneurysms in pig carotid artery by use of the internal jugular vein.

Severino Lourenço da, Silva Júnior; Guilherme Benjamin Brandão, Pitta; Adamastor Humberto, Pereira; Aldemar de Araújo, Castro; Maria Helena Tavares de, Matos; Fábio Duque, Silveira; Leonardo Torres, Magalhães; José Adolfo Hurt Almeida de, Moraes; Emmylena Karina Cordeiro, Machado; Carlos Wagner de Souza, Wanderley; Camila Meirelles de Souza, Silva; Luciana da Paz dos, Santos; João Nicolle Tupiná, Nogueira.

2013-04-01

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Safety of a training program for ultrasound-guided internal jugular vein catheterization in critically ill patients Segurança de um programa de treinamento para punção de veia jugular interna guiada por ultrassom em pacientes críticos  

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Full Text Available OBJECTIVES: Evaluate the safety and effectiveness of a training program for performing ultrasound-guided internal jugular vein cannulation in critically ill patients. METHODS: Cohort prospective study, evaluating adult patients admitted in a teaching intensive care unit (ICU. Catheter placement was performed by an ICU medical resident. The patient's baseline characteristics, vessel's position and operator experience were the evaluated variables. The main outcomes were cannulation success rate and incidence of major complications. RESULTS: A total of 118 consecutive patients were enrolled between May 2008 and November 2009. The success rate of ultrasound guided catheter placement was 90% (106/118, 77% in the first attempt. Major complications occurred in 4% of the cases (n = 5 and were not associated with the analyzed variables. Inability to place the guide wire was the reason for 58% (7/12 of the failures. Operators with more than 15 previous ultrasound guided cannulations had an increased success rate (95% vs. 79%, p = 0.01 and increased failure was related to previous catheterization (26% vs. 7%, p = 0.02. CONCLUSION: Learning ultrasound guidance for IJV vein cannulation was safe and feasible in ICU patients. This process was not associated to complications and better results were achieved across the spectrum of operator experienceOBJETIVO: Avaliar a segurança e efetividade de um programa de treinamento para cateterização da veia jugular interna guiada por ultrassom em pacientes críticos. MÉTODOS: Estudo de coorte prospectivo, avaliando pacientes adultos internados em uma unidade de terapia intensiva com programa de ensino. Os médicos residentes do serviço realizaram as punções de veia jugular interna guiadas por ultrassom. Foram avaliadas as características de base dos pacientes, sintopia dos vasos e experiência dos operadores. Os desfechos primários foram a taxa de sucesso da cateterização e a incidência de complicações graves. RESULTADOS: No período entre maio de 2008 e novembro de 2009 foram avaliados 118 pacientes. A taxa de sucesso da punção guiada por ultrassom foi 90% (106/118, 77% dessas na primeira tentativa. Complicações graves ocorreram em 4% dos casos (n = 5 e não foram associadas às variáveis analisadas. Incapacidade de progredir o fio-guia foi a razão de 58% (7/12 das falhas. Operadores com mais de 15 punções guiadas por ultrassom obtiveram uma maior taxa de sucesso (95% vs. 79%, p = 0,01 e pacientes com cateterização prévia apresentaram um maior número de falhas (26% vs. 7%, p = 0,02. CONCLUSÃO: O aprendizado da técnica de punção de veia jugular interna guiada por ultrasssom é seguro e efetivo em pacientes críticos. Este processo não esteve associado a um aumento da taxa de complicações e melhores resultados são obtidos à medida que aumenta a experiência do operador

Felippe Leopoldo Dexheimer Neto

2011-08-01

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Safety of a training program for ultrasound-guided internal jugular vein catheterization in critically ill patients / Segurança de um programa de treinamento para punção de veia jugular interna guiada por ultrassom em pacientes críticos  

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Full Text Available SciELO Brazil | Language: English Abstract in portuguese OBJETIVO: Avaliar a segurança e efetividade de um programa de treinamento para cateterização da veia jugular interna guiada por ultrassom em pacientes críticos. MÉTODOS: Estudo de coorte prospectivo, avaliando pacientes adultos internados em uma unidade de terapia intensiva com programa de ensino. O [...] s médicos residentes do serviço realizaram as punções de veia jugular interna guiadas por ultrassom. Foram avaliadas as características de base dos pacientes, sintopia dos vasos e experiência dos operadores. Os desfechos primários foram a taxa de sucesso da cateterização e a incidência de complicações graves. RESULTADOS: No período entre maio de 2008 e novembro de 2009 foram avaliados 118 pacientes. A taxa de sucesso da punção guiada por ultrassom foi 90% (106/118), 77% dessas na primeira tentativa. Complicações graves ocorreram em 4% dos casos (n = 5) e não foram associadas às variáveis analisadas. Incapacidade de progredir o fio-guia foi a razão de 58% (7/12) das falhas. Operadores com mais de 15 punções guiadas por ultrassom obtiveram uma maior taxa de sucesso (95% vs. 79%, p = 0,01) e pacientes com cateterização prévia apresentaram um maior número de falhas (26% vs. 7%, p = 0,02). CONCLUSÃO: O aprendizado da técnica de punção de veia jugular interna guiada por ultrasssom é seguro e efetivo em pacientes críticos. Este processo não esteve associado a um aumento da taxa de complicações e melhores resultados são obtidos à medida que aumenta a experiência do operador Abstract in english OBJECTIVES: Evaluate the safety and effectiveness of a training program for performing ultrasound-guided internal jugular vein cannulation in critically ill patients. METHODS: Cohort prospective study, evaluating adult patients admitted in a teaching intensive care unit (ICU). Catheter placement was [...] performed by an ICU medical resident. The patient's baseline characteristics, vessel's position and operator experience were the evaluated variables. The main outcomes were cannulation success rate and incidence of major complications. RESULTS: A total of 118 consecutive patients were enrolled between May 2008 and November 2009. The success rate of ultrasound guided catheter placement was 90% (106/118), 77% in the first attempt. Major complications occurred in 4% of the cases (n = 5) and were not associated with the analyzed variables. Inability to place the guide wire was the reason for 58% (7/12) of the failures. Operators with more than 15 previous ultrasound guided cannulations had an increased success rate (95% vs. 79%, p = 0.01) and increased failure was related to previous catheterization (26% vs. 7%, p = 0.02). CONCLUSION: Learning ultrasound guidance for IJV vein cannulation was safe and feasible in ICU patients. This process was not associated to complications and better results were achieved across the spectrum of operator experience

Felippe Leopoldo, Dexheimer Neto; Cíntia, Roehrig; Paola, Morandi; Roselaine Pinheiro de, Oliveira; Cassiano, Teixeira; Juçara Gasparetto, Maccari; Andre Luiz da Silva, Alencastro; Régis Bueno, Albuquerque; Eubrando Silvestre, Oliveira.

2011-08-01

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Trombose séptica de seios cavernosos, transverso e sigmóide e de veia jugular, associada à meningite, secundária a furúnculo nasal: Relato de Caso Septic thrombosis of cavernous, transverse, sigmoid sinuses and jugular vein, associated with meningitis, secondary to nasal furuncle: Case report  

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Full Text Available Os autores descrevem um caso de furúnculo nasal que evoluiu com trombose séptica de seio cavernoso, bilateral e assimétrica, e de seios transverso e sigmóide e de veia jugular interna a esquerda, associada à meningite bacteriana, em um paciente previamente hígido. Apesar da trombose séptica extensa de seios venosos, o paciente apresentou boa evolução, após tratamento clínico agressivo com antibióticos, corticosteróides e anticoagulantes. Porém, manteve como seqüela: paresia de VI nervo à esquerda e lesão parcial de nervo óptico homolateral.The authors report a case of nasal furuncle that progressed to septic bilateral and asymmetric thrombosis of cavernous, transverse, sigmoid sinus and internal jugular vein, associated with bacterial meningitis, in a previously healthy patient. In spite of the extensive thrombosis, the patient presented a good evolution, after an aggressive clinical treatment with antibiotics, corticosteroids and anticoagulants. However, there remained paresis of the VI nerve on the left and partial lesion of the homolateral optic nerve.

Hélio Utida

2002-06-01

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Sistematização da veia cava cranial em búfalos (Bubalus bubalis bubalis Simpson, 1945) / Systematization of the cranial vena cava in buffalos (Bubalus bubalis bubalis Simpson, 1945)  

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Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Para o presente trabalho utilizou-se 25 animais, fetos de búfalos, com idades variando entre 5 e 9 meses, sendo 15 fêmeas e 10 machos, com vistas à dissecação e sistematização dos vasos em estudo. Os animais foram coletados em abatedouro e fixados em solução aquosa de formol 10%. Obtiveram-se para a [...] Veia Cava Cranial os seguintes afluentes de origem: veias jugulares externas direita e esquerda, e os afluentes colaterais: as veias jugulares internas direita e esquerda, veias mediastínicas e pericárdicas, veias torácicas internas direita e esquerda, veias tímicas, veias subclávias direita e esquerda, o tronco costocervicovertebral direita esquerda, e ocasionalmente o ducto torácico. Abstract in english Twenty-five animals, Buffaloes fetus, with 5 to 9 months of age (15 females and 10 males) was analyzed by dissection after injected with latex substance. The fetuses were collected in a slaughterhouse and fixed in aqueous formol solution 10%. In the Cranial Vena Cava the following origin tributaries [...] were observed: External right and left jugular veins and their collateral tributaries; the internal right and left jugular veins; the mediastinals and pericardials veins; the internal right and left thoracic; thymic vein; the right and left subclavian vein, the right and left costocervicalvertebral venous trunk, and occasionally the thoracic duct.

Adelmar Afonso de, Amorim Júnior; Maria Angélica, Miglino; Marleyne José Afonso Accioly Lins, Amorim; Tatiana Carlesso dos, Santos.

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Revascularização completa do miocárdio. Pontes seqüenciais de veia safena, anastomoses seqüenciais da artéria torácica interna e enxertos compostos: análise de 165 casos consecutivos  

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Full Text Available Buscando a revascularização completa do miocárdio, 165 casos foram analisados dentre 359 pacientes submetidos a cirurgia de revascularização do miocárdio, no período de janeiro de 1995 a janeiro de 1996, com pontes de veia safena e/ou artéria torácica interna, de forma seqüencial, ou associadas como enxertos compostos. Destes, 132 receberam pontes seqüenciais de veia safena servindo a 2 ou mais ramos arteriais coronários, 25 foram tratados através de anastomoses seqüenciais de artéria torácica interna, de forma simples, interessando aos ramos interventricular anterior e diagonais da coronária esquerda, enquanto 8 receberam enxertos compostos de artéria torácica interna direita e esquerda associados a segmentos de veias safenas, que terminavam em ramos das artérias coronárias direita e esquerda. Em 96% os casos a operação programada foi realizada, obtendo-se revascularização completa. Ocorreu um único (0,6% óbito hospitalar conseqüente a infarto do miocárdio transoperatório, seguido de síndrome de baixo débito cardíaco; a morbidade não diferiu daquela presente nos procedimentos usuais de revascularização cirúrgica do miocárdio. Os cuidados na dissecção e preparo dos pedículos da artéria torácica interna, bem como na retirada e preparo para implante das veias safenas, somados àqueles necessários à obtenção da perfeita anastomose seqüencial, de modo a evitar torções, angulações e acotovelamentos dos enxertos, são enfatizados como fundamentais para o excelente resultado obtido na série analisada. Nossos resultados entusiasmam o emprego da crescente freqüência no uso da técnica da revascularização completa do miocárdio.The authors analyse 165 patients out of 359 submitted to myocardial revascularization during the period between January 1995 and January 1996, in which the saphenous veins and the internal thoracic arteries have been used as a sequential graft, or associated with a composit graft; 132 received saphenous veins as a sequential graft to two or more coronary branches, 25 had sequential anastomosis of the left internal thoracic artery to IVA and diagonal branches of the left coronary artery, and 8 cases had both saphenous veins and internal thoracic arteries used as a composite graft to branches of the left and right coronary arteries. In 96% of the cases the scheduled surgery was performed, one patient died in the immediate post-operative period (0.6% and the morbidity was not different from that found in the standard coronary artery surgery. Details of the preparation of the grafts, as well as operative technique is discussed, and the results of this series stimulated us for further use of the sequential grafts aiming for complete myocardial revascularization.

Raul Corrêa RABELO

1997-04-01

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Central venous access through the external jugular vein in children submitted to bone marrow transplantation  

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Full Text Available SciELO Brazil | Language: English Abstract in portuguese O estabelecimento de um acesso venoso central de longa duração é uma condição sine qua non para realizar o transplante de medula óssea em crianças. Com frequência, este acesso tem sido obtido através da punção percutânea das veias subclávia e jugular interna ou via dissecção da jugular interna. Com [...] o objetivo de evitar algumas complicações maiores e menores associadas com a subclávia e a jugular interna, os autores descrevem um método simples, fácil e seguro para o acesso venoso central através de dissecção da veia jugular externa. Este método deveria ser de interesse dos leitores envolvidos com o transplante de medula óssea e ser considerado também para crianças e/ou adultos que necessitem de cateter venoso central de longa permanência (externo ou totalmente implantável) devido a outras razões, como a nutrição parenteral ou a administração de agentes quimioterápicos. Abstract in english Establishment of long-term central venous access is a sine qua non step for bone marrow transplantation in children. Most frequently, long-term central venous access has been obtained via blind percutaneous cannulation of subclavian and internal jugular veins or via internal jugular vein cutdown. In [...] order to avoid some potential minor and major complications associated with the subclavian or internal jugular approaches, the authors describe an easy, simple and safe method for central venous access through an external jugular vein cutdown that should be of interest to readers involved in the field of bone marrow transplantation. It should be also considered for children as well as adults needing central venous access via an external catheter - or totally implantable port - for reasons other than bone marrow transplantation, such as total parenteral nutrition and administration of chemotherapeutic agents.

José Luiz de, Godoy; Edson Keity, Otta; Ricardo Atsumori, Miyazaki; Marco Antonio, Bitencourt; Ricardo, Pasquini.

2005-01-01

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Central venous access through the external jugular vein in children submitted to bone marrow transplantation  

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Full Text Available Establishment of long-term central venous access is a sine qua non step for bone marrow transplantation in children. Most frequently, long-term central venous access has been obtained via blind percutaneous cannulation of subclavian and internal jugular veins or via internal jugular vein cutdown. In order to avoid some potential minor and major complications associated with the subclavian or internal jugular approaches, the authors describe an easy, simple and safe method for central venous access through an external jugular vein cutdown that should be of interest to readers involved in the field of bone marrow transplantation. It should be also considered for children as well as adults needing central venous access via an external catheter - or totally implantable port - for reasons other than bone marrow transplantation, such as total parenteral nutrition and administration of chemotherapeutic agents.O estabelecimento de um acesso venoso central de longa duração é uma condição sine qua non para realizar o transplante de medula óssea em crianças. Com frequência, este acesso tem sido obtido através da punção percutânea das veias subclávia e jugular interna ou via dissecção da jugular interna. Com o objetivo de evitar algumas complicações maiores e menores associadas com a subclávia e a jugular interna, os autores descrevem um método simples, fácil e seguro para o acesso venoso central através de dissecção da veia jugular externa. Este método deveria ser de interesse dos leitores envolvidos com o transplante de medula óssea e ser considerado também para crianças e/ou adultos que necessitem de cateter venoso central de longa permanência (externo ou totalmente implantável devido a outras razões, como a nutrição parenteral ou a administração de agentes quimioterápicos.

José Luiz de Godoy

2005-01-01

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Correction of carotid-jugular traumatic fistula using a bovine pericardial patch / Correção de fístula traumática carotídeo-jugular com pericárdio bovino  

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Full Text Available SciELO Brazil | Language: English Abstract in portuguese A fístula carotídeo-jugular é de ocorrência rara, porém habitualmente causa morbimortalidade. Está associada frequentemente a trauma penetrante, principalmente em razão de lesão por projétil de arma de fogo. Relata-se o caso de um paciente vítima de lesão por projétil de arma de fogo na região cervi [...] cal esquerda, o que provocou fístula arteriovenosa carotídeo-jugular com oclusão da artéria carótida comum. Foi realizada correção da fístula com ligadura da veia jugular interna e arteriorrafia com remendo de pericárdio bovino na artéria carótida comum esquerda. Abstract in english Carotid-jugular fistulae are rare, but habitually cause morbidity and mortality. They are often linked with penetrating trauma, primarily caused by gunshots. This report describes the case of a patient who was the victim of a gunshot wound to the left cervical area, provoking a carotid-jugular arter [...] iovenous fistula and occlusion of the common carotid artery. The fistula was corrected by ligature of the internal jugular vein and arteriorrhaphy of the left common carotid artery with a bovine pericardium patch.

Werther Souza, Sales; Fabio Augusto Cypreste, Oliveira; Fabio Henrique Ribeiro de, Souza; Handel Meireles, Borges Filho; Juliano Ricardo Santana, Santos; Marcelo Luiz, Brandão; Paula Sabrina Araujo, Milhomem; Rodrigo Alves, Riemma.

2014-03-01

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Trombosis yugular interna bilateral asociada a trombofilia después de la inducción ovárica por infertilidad Bilateral internal jugular thrombosis associated with thrombophilia after ovarian induction for infertility  

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Full Text Available Los eventos tromboembólicos son complicaciones poco frecuentes del tratamiento hormonal de la infertilidad y generalmente están asociados al síndrome de hiperestimulación ovárico (SHO. La trombosis venosa yugular es infrecuente y ante su presencia se debería sospechar la existencia de algún factor predisponente. Describimos una paciente de 31 años, sin antecedentes de importancia, no fumadora, a la cual se le realizó un único ciclo de estimulación hormonal para fertilización in vitro por esterilidad primaria con factor masculino. Durante la octava semana de embarazo gemelar desarrolló una trombosis yugular interna bilateral, en ausencia de SHO u otros factores predisponentes aparentes. En la evaluación para trombofilia se detectó la presencia del Factor V Leiden y la mutación del gen de la protrombina G 20210, que junto con el estímulo hormonal, se interpretaron como los factores predisponentes. Se anticoaguló con heparina de bajo peso molecular. No está recomendado el rastreo sistemático de trombofilia antes del tratamiento hormonal, pero podría ser considerado en pacientes de alto riesgo o en quienes desarrollan trombosis en ausencia de un factor predisponente claro.Thromboembolic events are an infrequent complication of hormonal treatment for infertility and are generally related to the hyperstimulated ovarian syndrome (HOS. Jugular vein thrombosis is an unusual site of thrombosis and when present one should look for a predisposing factor. We describe a 31-year-old woman, with no previous medical history, non-smoker, who received a single cycle of hormonal stimulation for in vitro fertilisation due to primary infertility. During her eighth week of a twin pregnancy, she consulted the emergency room where the diagnosis of bilateral jugular thrombosis was confirmed, in absence of HOS or any known predisposing factor. In subsequent studies, the presence of Factor V Leyden and a mutation of G 20210 prothrombin were found. These, in association to the hormonal stimulus, were considered the risk factors. She received anticoagulation treatment with low molecular weight heparin. Screening tests for thrombophilias before hormonal treatment is not recommended, but one could consider this possibility in high-risk patients or in those who develop thrombosis in the absence of any predisposing factors.

Fernando Vázquez

2002-08-01

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Trombosis yugular interna bilateral asociada a trombofilia después de la inducción ovárica por infertilidad / Bilateral internal jugular thrombosis associated with thrombophilia after ovarian induction for infertility  

Scientific Electronic Library Online (English)

Full Text Available SciELO Argentina | Language: Spanish Abstract in spanish Los eventos tromboembólicos son complicaciones poco frecuentes del tratamiento hormonal de la infertilidad y generalmente están asociados al síndrome de hiperestimulación ovárico (SHO). La trombosis venosa yugular es infrecuente y ante su presencia se debería sospechar la existencia de algún factor [...] predisponente. Describimos una paciente de 31 años, sin antecedentes de importancia, no fumadora, a la cual se le realizó un único ciclo de estimulación hormonal para fertilización in vitro por esterilidad primaria con factor masculino. Durante la octava semana de embarazo gemelar desarrolló una trombosis yugular interna bilateral, en ausencia de SHO u otros factores predisponentes aparentes. En la evaluación para trombofilia se detectó la presencia del Factor V Leiden y la mutación del gen de la protrombina G 20210, que junto con el estímulo hormonal, se interpretaron como los factores predisponentes. Se anticoaguló con heparina de bajo peso molecular. No está recomendado el rastreo sistemático de trombofilia antes del tratamiento hormonal, pero podría ser considerado en pacientes de alto riesgo o en quienes desarrollan trombosis en ausencia de un factor predisponente claro. Abstract in english Thromboembolic events are an infrequent complication of hormonal treatment for infertility and are generally related to the hyperstimulated ovarian syndrome (HOS). Jugular vein thrombosis is an unusual site of thrombosis and when present one should look for a predisposing factor. We describe a 31-ye [...] ar-old woman, with no previous medical history, non-smoker, who received a single cycle of hormonal stimulation for in vitro fertilisation due to primary infertility. During her eighth week of a twin pregnancy, she consulted the emergency room where the diagnosis of bilateral jugular thrombosis was confirmed, in absence of HOS or any known predisposing factor. In subsequent studies, the presence of Factor V Leyden and a mutation of G 20210 prothrombin were found. These, in association to the hormonal stimulus, were considered the risk factors. She received anticoagulation treatment with low molecular weight heparin. Screening tests for thrombophilias before hormonal treatment is not recommended, but one could consider this possibility in high-risk patients or in those who develop thrombosis in the absence of any predisposing factors.

Fernando, Vázquez; Diana, Penchasky; Inés, De la Parra; Astrid, Pavlovsky; Yolanda, Adamczuk.

2002-08-01

15

Trombectomia com cateter de Fogarty no tratamento da tromboflebite jugular experimental em eqüinos Thrombectomy with Fogarty's catheter as a treatment of induced jugular thrombophlebitis in horses  

OpenAIRE

Trombose da veia jugular é problema freqüente na medicina eqüina, implicando muitas vezes em conseqüências fatais. O objetivo deste trabalho foi avaliar em eqüinos a aplicabilidade da trombectomia com cateter de Fogarty, técnica rotineiramente empregada pela medicina humana, no restabelecimento da perviedade vascular. Foram utilizados 10 eqüinos divididos em dois grupos de cinco animais, em que se induziu a trombose da veia jugular direita, através do acesso cirúrgico à veia e apli...

Hussni, Carlos A.; Dornbusch, Peterson T.; Yoshida, Winston B.; Alves, Ana L. G.; Nicoletti, Jose? L. M.; Mamprim, Maria J.; Vulcano, Luiz C.

2009-01-01

16

Enxerto composto de artéria torácica interna esquerda e veia safena magna: estudo angiográfico após oito anos / Left internal thoracic artery and saphenous vein as a composite graft: 8-year angiographic follow-up study  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O uso de enxerto composto de artéria torácica interna esquerda (ATIE) com segmentos arteriais ou segmentos de veia safena magna (VSM) pode permitir a revascularização completa do sistema coronariano esquerdo (SCE) sem circulação extracorpórea (CEC) e sem manuseio da aorta ascendente (MAA), como form [...] a de tentar reduzir alguns riscos e complicações no pós-operatório imediato. Neste trabalho, relatamos os resultados angiográficos, após oito anos, de dois pacientes submetidos à cirurgia de revascularização do SCE com enxerto composto de ATIE e VSM, sem CEC e sem MAA. Abstract in english The use of a composite graft with left internal thoracic artery (LITA) and arterial or saphenous vein (SV) grafts can allow the complete revascularization of the left coronary system (LCS) without cardiopulmonary bypass (CPB) and without ascending aorta manipulation (AAM), in order to reduce some co [...] mplications in the immediate postoperative. This study shows 8-year angiographic follow-up results of two patients underwent no-touch aorta off-pump coronary artery bypass grafting (CABG) using LITA and SV as a composite graft to supply LCS.

José Glauco, Lobo Filho; Heraldo Guedis, Lobo Filho; Francisco José Cabral, Mesquita; Jaime Paula Pessoa, Linhares Filho.

2010-03-01

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Anastomose entre a artéria carótida externa e a artéria carótida interna supraclinóidea utilizando enxerto de veia safena para tratamento de aneurisma gigante do segmento cavernoso da carótida interna: relato de caso Saphenous vein graft bypass from the external carotid artery to the supraclinoid internal carotid artery to treat a giant aneurysm of the cavernous internal carotid: case report  

Directory of Open Access Journals (Sweden)

Full Text Available Procedimentos cirúrgicos alternativos para o tratamento de aneurismas "não clipáveis" da carótida intracavernosa incluem ligadura do vaso ou exclusão do segmento que origina a lesão. Essas técnicas estão associadas a riscos de complicações isquêmicas, mesmo em pacientes com sistema de colaterais funcionante. Portanto, um tratamento adequado requer revascularização encefálica para manter o fluxo sanguíneo nos territórios envolvidos. Relatamos o caso de uma paciente de 47 anos com sintomas e sinais isquêmicos embólicos e paralisia do III nervo craniano causados por aneurisma gigante, parcialmente trombosado, do segmento cavernoso da carótida interna. A paciente foi submetida a ponte anastomótica entre a carótida externa cervical e a carótida interna supraclinoidea utilizando enxerto de veia safena, seguido de exclusão do segmento vascular contendo o aneurisma, com bom resultado e sem complicações.Alternative surgical procedures to treat unclippable aneurysms of the intracavernous carotid artery include proximal vessel occlusion and trapping. Those techniques, even in patients with rich colateral vessels, are associated with risk of hemodynamic compromise and ischemic complications. Therefore, a safe treatment requires revascularization to maintain blood flow to the involved territories. We report the case of a 47-year-old female, with ischemic signs and symptoms and a right third nerve palsy caused by a giant aneurysm, partially trombosed, of the intracavernous carotid artery. The patient was submmited to trapping after a saphenous vein graft bypass from the external carotid artery to the supraclinoid internal carotid artery. The surgical result was good without complications.

Hildo Azevedo Filho

2001-03-01

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Trombosis de la vena yugular interna y mediastinitis aguda necrosante descendente debido a una faringoamigdalitis aguda / Thrombosis of the internal jugular vein and descending necrotizing mediastinitis due to acute pharyngotonsilitis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish El síndrome de Lemierre es una patología muy infrecuente en la época actual, pero muy grave, y siempre debe considerarse ante un cuadro de fiebre con antecedente de infección orofaríngea, tumefacción laterocervical a lo largo del músculo esternocleidomastoideo y signos de sepsis. El diagnóstico de e [...] ste síndrome es fundamentalmente clínico, y las pruebas complementarias tan sólo ayudan a confirmar el cuadro. Presentamos el caso de un varón de 31 años que acudió a urgencias con clínica de faringoamigdalitis junto con tumefacción en la región submandibular izquierda e importante dolor cervical ipsilateral, que mostró un deterioro rápido y progresivo del estado general pese al tratamiento antibiótico intravenoso. Finalmente tuvo que ser intervenido debido al desarrollo de mediastinitis aguda necrosante descendente desde la región pretiroidea hasta el diafragma, con trombosis de la vena yugular interna izquierda. Se le realizó toracotomía urgente y cervicotomía izquierda con drenaje de abundante material purulento y ligadura de la vena yugular interna. Abstract in english Lemierre syndrome is a potentially fatal condition after an oropharyngeal infection. It is characterized by thrombophlebitis of head and neck veins with systemic dissemination of septic emboli. The diagnosis of this syndrome is mainly clinical and complementary test only serve as aid to confirm it. [...] We report an unusual case of Lemierre syndrome in a 31-year-old man caused by Gemella spp. and Streptococcus pyogenes. It developed following a pharyngotonsillitis infection, which deteriorated rapidly and progressively despite intravenous antibiotic treatment. He finally had to be intervened due to developing acute descending necrotizing mediastinitis from the pre-thyroid region to the diaphragm, with thrombosis of the internal jugular vein. An urgent thoracotomy and left cervicotomy was performed, with drainage of abundant purulent material and ligature of the internal jugular vein. We also discuss its atypical clinical presentation, the crucial role of imaging in the early diagnosis, and the different treatment options of this life-threatening syndrome.

Celia, Sánchez Acedo; Pedro Luis, Martos Díaz; Mario F., Muñoz Guerra; Luis, Naval Gías; Francisco J., Rodríguez Campo; Emilio, Martín Díaz.

2010-09-01

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Transposition of cephalic vein to rescue hemodialysis access arteriovenous fistula and treat symptomatic central venous obstruction / Transposição de veia cefálica para salvamento de fístula arteriovenosa de hemodiálise e tratamento de obstrução venosa central sintomática  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Sabemos que estenose ou obstrução venosa central ocorre em 20 a 50% dos pacientes que são submetidos à colocação de cateter em veias centrais. Nos pacientes que realizam hemodiálise pelos membros superiores, este problema causa sintomas debilitantes e um grande risco de perda do acesso para hemodiál [...] ise. Relatamos um caso atípico de tratamento em um paciente dialítico com múltiplas comorbidades, queixa de dor e edema severo do membro superior direito (MSD), escassas alternativas de acessos vasculares para hemodiálise e fístula braquiobasílica funcionante do MSD associada à severa hipertensão venosa deste membro, secundária à oclusão venosa central da veia jugular interna e do tronco braquiocefálico direito. O tratamento cirúrgico alternativo foi a transposição da veia cefálica do MSD, formando colar venoso na região cervical anterior, resultando em um bypass sobre o sítio venoso ocluído. Para isso, realizamos a dissecção da veia cefálica no braço direito até a sua junção com a veia axilar, devalvulamos e anastomosamos a veia cefálica na veia jugular externa contralateral, permitindo a drenagem venosa do MSD, aliviando os sintomas da hipertensão venosa e mantendo a fístula braquiobasílica funcionante. Abstract in english It is known that stenosis or central venous obstruction affects 20 to 50% of patients who undergo placement of catheters in central veins. For patients who are given hemodialysis via upper limbs, this problem causes debilitating symptoms and increases the risk of loss of hemodialysis access. We repo [...] rt an atypical case of treatment of a dialysis patient with multiple comorbidities, severe swelling and pain in the right upper limb (RUL), few alternative sites for hemodialysis vascular access, a functioning brachiobasilic fistula in the RUL and severe venous hypertension in the same limb, secondary to central vein occlusion of the internal jugular vein and right brachiocephalic trunk. The alternative surgical treatment chosen was to transpose the RUL cephalic vein, forming a venous necklace at the anterior cervical region, bypassing the site of venous occlusion. In order to achieve this, we dissected the cephalic vein in the right arm to its junction with the axillary vein, devalved the cephalic vein and anastomosed it to the contralateral external jugular vein, providing venous drainage to the RUL, alleviating symptoms of venous hypertension and preserving function of the brachiobasilic fistula.

Felipe Jose, Skupien; Ricardo Zanetti, Gomes; Emerson Hideyoshi, Shimada; Rafael Inacio, Brandao; Suellen Vienscoski, Skupien.

2014-03-01

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Anastomose entre a artéria carótida externa e a artéria carótida interna supraclinóidea utilizando enxerto de veia safena para tratamento de aneurisma gigante do segmento cavernoso da carótida interna: relato de caso / Saphenous vein graft bypass from the external carotid artery to the supraclinoid internal carotid artery to treat a giant aneurysm of the cavernous internal carotid: case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Procedimentos cirúrgicos alternativos para o tratamento de aneurismas "não clipáveis" da carótida intracavernosa incluem ligadura do vaso ou exclusão do segmento que origina a lesão. Essas técnicas estão associadas a riscos de complicações isquêmicas, mesmo em pacientes com sistema de colaterais fun [...] cionante. Portanto, um tratamento adequado requer revascularização encefálica para manter o fluxo sanguíneo nos territórios envolvidos. Relatamos o caso de uma paciente de 47 anos com sintomas e sinais isquêmicos embólicos e paralisia do III nervo craniano causados por aneurisma gigante, parcialmente trombosado, do segmento cavernoso da carótida interna. A paciente foi submetida a ponte anastomótica entre a carótida externa cervical e a carótida interna supraclinoidea utilizando enxerto de veia safena, seguido de exclusão do segmento vascular contendo o aneurisma, com bom resultado e sem complicações. Abstract in english Alternative surgical procedures to treat unclippable aneurysms of the intracavernous carotid artery include proximal vessel occlusion and trapping. Those techniques, even in patients with rich colateral vessels, are associated with risk of hemodynamic compromise and ischemic complications. Therefore [...] , a safe treatment requires revascularization to maintain blood flow to the involved territories. We report the case of a 47-year-old female, with ischemic signs and symptoms and a right third nerve palsy caused by a giant aneurysm, partially trombosed, of the intracavernous carotid artery. The patient was submmited to trapping after a saphenous vein graft bypass from the external carotid artery to the supraclinoid internal carotid artery. The surgical result was good without complications.

Hildo, Azevedo Filho; Carolina, Martins; Antonio, Carvalho; Sá, Geraldo; Giovanni, Grassi; Claudiana, Cardoso; Gilberto, Vilaça; Cícero, Rodrigues.

2001-03-01

21

Trombectomia com cateter de Fogarty no tratamento da tromboflebite jugular experimental em eqüinos / Thrombectomy with Fogarty's catheter as a treatment of induced jugular thrombophlebitis in horses  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Trombose da veia jugular é problema freqüente na medicina eqüina, implicando muitas vezes em conseqüências fatais. O objetivo deste trabalho foi avaliar em eqüinos a aplicabilidade da trombectomia com cateter de Fogarty, técnica rotineiramente empregada pela medicina humana, no restabelecimento da p [...] erviedade vascular. Foram utilizados 10 eqüinos divididos em dois grupos de cinco animais, em que se induziu a trombose da veia jugular direita, através do acesso cirúrgico à veia e aplicação de sutura estenosante e injeção de glicose a 50%. No grupo controle avaliou-se a evolução da tromboflebite sem qualquer tipo de intervenção terapêutica. Os animais do grupo tratado foram submetidos à trombectomia com cateter de Fogarty. Foram avaliados os parâmetros clínicos gerais, regionais, ultra-sonográficos e angiográficos, nos momentos pré-indução (M-PRÉ), indução da trombose (MTI) e 10 dias de evolução da trombose (M10). A técnica empregada induziu a tromboflebite, que obstruiu completamente um segmento da veia jugular de todos os animais. Os animais do grupo controle mantiveram os trombos obstruindo totalmente o lume vascular até o final do período de avaliação, sendo que avaliações regionais mostraram principalmente o edema parotídeo e o ingurgitamento vascular, cranial à tromboflebite da veia jugular. O grupo tratado apresentou as veias jugulares pérvias ao final do experimento, confirmadas pelos exames ultra-sonográficos e angiográficos, com remissão total dos sinais clínicos. Concluiu-se que a técnica da trombectomia com cateter de Fogarty foi eficiente na desobstrução da veia jugular submetida à trombose experimental. Abstract in english Thrombosis of jugular vein is a common problem in the equine medicine, implying frequently in fatal outcomes. The diagnosis is relatively simple, based on the clinical findings, angiographics images and ultrasonographycs. The therapeutic employed to a large extent of the cases is unsatisfactory. The [...] purpose of this study was to evaluate the applicability of the thrombectomy with Fogarty's catheter in horses. This technique is routinely used in medicine, in the reestablishment of the vascular perviousness. Ten horses were allocated in two groups (five animals each) and induced to an unilateral thrombosis of right jugular vein, through the surgical access and an application of stenotic suture and glucose 50% injection. In the control group evolution of the thrombophlebitis without any therapeutical intervention was evaluated. The animals of the treatment group were submitted to the thrombectomy with Fogarty's catheter. General clinical parameters were analyzed at the moment of the preinduction (MPRE), induction of thrombosis (MTI), and at the 10th day of thrombosis evolution (M10). The procedure induced thrombophlebitis that completely obstructed a segment of the jugular vein in all animals. In the animals of the control group, the thrombus totally obstructed the vascular lumen until the end of the period of evaluation, and parotid edema and vascular dilated, cranial to the thrombophlebitis of jugular vein were observed. The treatment group presented all veins pervious in the end of the experiment, with total remission of the clinical signs, confirmed by angiographic and ultrasonographic examinations. So far, it was concluded that the technique of thrombectomy with Fogarty's catheter was effective in removal of the thrombosis obstruction experimentally induced in the jugular vein.

Carlos A., Hussni; Peterson T., Dornbusch; Winston B., Yoshida; Ana L. G., Alves; José L. M., Nicoletti; Maria J., Mamprim; Luiz C., Vulcano.

2009-01-01

22

Trombectomia com cateter de Fogarty no tratamento da tromboflebite jugular experimental em eqüinos Thrombectomy with Fogarty's catheter as a treatment of induced jugular thrombophlebitis in horses  

Directory of Open Access Journals (Sweden)

Full Text Available Trombose da veia jugular é problema freqüente na medicina eqüina, implicando muitas vezes em conseqüências fatais. O objetivo deste trabalho foi avaliar em eqüinos a aplicabilidade da trombectomia com cateter de Fogarty, técnica rotineiramente empregada pela medicina humana, no restabelecimento da perviedade vascular. Foram utilizados 10 eqüinos divididos em dois grupos de cinco animais, em que se induziu a trombose da veia jugular direita, através do acesso cirúrgico à veia e aplicação de sutura estenosante e injeção de glicose a 50%. No grupo controle avaliou-se a evolução da tromboflebite sem qualquer tipo de intervenção terapêutica. Os animais do grupo tratado foram submetidos à trombectomia com cateter de Fogarty. Foram avaliados os parâmetros clínicos gerais, regionais, ultra-sonográficos e angiográficos, nos momentos pré-indução (M-PRÉ, indução da trombose (MTI e 10 dias de evolução da trombose (M10. A técnica empregada induziu a tromboflebite, que obstruiu completamente um segmento da veia jugular de todos os animais. Os animais do grupo controle mantiveram os trombos obstruindo totalmente o lume vascular até o final do período de avaliação, sendo que avaliações regionais mostraram principalmente o edema parotídeo e o ingurgitamento vascular, cranial à tromboflebite da veia jugular. O grupo tratado apresentou as veias jugulares pérvias ao final do experimento, confirmadas pelos exames ultra-sonográficos e angiográficos, com remissão total dos sinais clínicos. Concluiu-se que a técnica da trombectomia com cateter de Fogarty foi eficiente na desobstrução da veia jugular submetida à trombose experimental.Thrombosis of jugular vein is a common problem in the equine medicine, implying frequently in fatal outcomes. The diagnosis is relatively simple, based on the clinical findings, angiographics images and ultrasonographycs. The therapeutic employed to a large extent of the cases is unsatisfactory. The purpose of this study was to evaluate the applicability of the thrombectomy with Fogarty's catheter in horses. This technique is routinely used in medicine, in the reestablishment of the vascular perviousness. Ten horses were allocated in two groups (five animals each and induced to an unilateral thrombosis of right jugular vein, through the surgical access and an application of stenotic suture and glucose 50% injection. In the control group evolution of the thrombophlebitis without any therapeutical intervention was evaluated. The animals of the treatment group were submitted to the thrombectomy with Fogarty's catheter. General clinical parameters were analyzed at the moment of the preinduction (MPRE, induction of thrombosis (MTI, and at the 10th day of thrombosis evolution (M10. The procedure induced thrombophlebitis that completely obstructed a segment of the jugular vein in all animals. In the animals of the control group, the thrombus totally obstructed the vascular lumen until the end of the period of evaluation, and parotid edema and vascular dilated, cranial to the thrombophlebitis of jugular vein were observed. The treatment group presented all veins pervious in the end of the experiment, with total remission of the clinical signs, confirmed by angiographic and ultrasonographic examinations. So far, it was concluded that the technique of thrombectomy with Fogarty's catheter was effective in removal of the thrombosis obstruction experimentally induced in the jugular vein.

Carlos A. Hussni

2009-01-01

23

Throbbing tinnitus in aberrant internal carotid artery aggravated by elevation of the jugular bulb. A case report; Pulsierender Tinnitus bei aberranter Arteria carotis interna in Kombination mit Hochstand des Bulbus venae jugularis. Kasuistik  

Energy Technology Data Exchange (ETDEWEB)

Vascular anomalies in the middle ear are rarely observed. They cause no symptoms in the majority of cases, although some may be associated with tinnitus. The false diagnosis of glomus tumour may lead to considerable problems, if surgery is performed. It is therefore necessary that precise pre-operative data are obtained, preferably based on contrast-enhanced computerized tomography. Subsequent 2D and 3D image reconstructions provide further vascular findings regarding the topographic and anatomic factors involved and eliminate the need for invasive angiography of the carotid artery or retrograde jugular venography to make a firm diagnosis. (orig.) [Deutsch] Gefaessanomalien im Mittelohr sind selten. Meist sind sie asymptomatisch, koennen aber assoziiert sein mit Tinnitus. Die Fehldiagnose eines Glomustumors kann im Rahmen einer Operation zu gravierenden Problemen fuehren. Eine exakte praeoperative Abklaerung ist deshalb notwendig und sollte als Computertomographie mit Kontrastmittelgabe durchgefuehrt werden. Die anschliessende 2D- und 3D-Bildwiedergabe klaert die topographisch-anatomischen Gefaessbeziehungen und erlaubt somit die Diagnosestellung ohne die frueher durchgefuehrte invasive Carotisangiographie oder retrograde Jugularisvenographie. (orig.)

Wilhelm, T. [Inst. fuer Roentgendiagnostik, Klinikum der Technischen Univ. Muenchen (Germany); Kirsten, R. [Inst. fuer Roentgendiagnostik, Klinikum der Technischen Univ. Muenchen (Germany); Kau, R.J. [Hals-Nasen-Ohrenklinik und Poliklinik, Klinikum der Technischen Univ. Muenchen (Germany)

1995-04-01

24

The jugular bulb diverticulum  

International Nuclear Information System (INIS)

Two hundred and forty-five temporal bone specimens were examined radiographically. Subsequently the topographic relationship between the jugular fossa and surrounding structures was evaluated in plastic casts of the specimens. Fifty-eight casts showed a high jugular fossa and in 17 a jugular bulb diverticulum was found. A diverticulum is regarded as an anomaly of the high jugular bulb and presumably has a potential for expansion. Most frequently a diverticulum was directed medially into the space between the internal acoustic meatus, the vestibular aqueduct and the posterior cranial fossa. Seven diverticula reached the level of the internal acoustic meatus. Encroachment upon the vestibular aqueduct was seen in 4 casts and both the internal acoustic meatus and the cochlear aqueduct were very close to the diverticulum. A few diverticula were directed postero-laterally close to the facial canal and the stapedius muscle. The investigation was supplemented with a selected clinical material of radiographs of temporal bones with high fossae. The results corresponded to those of the experimental investigation. The jugular bulb diverticulum is a relatively common feature and should be regarded as an anomaly with a potential to give rise to clinical symptoms consequent to its intrusion upon surrounding structures. (orig.)

25

Jugular foramen chordoid meningioma.  

Science.gov (United States)

Chordoid meningioma (CM) is a rare histological variant of meningioma and is classified as an atypical meningioma on pattern alone. Herein is described the first case of CM occurring in the jugular foramen. The patient was a 45-year-old woman with a 2 year history of progressive right hearing loss. Magnetic resonance imaging (MRI) demonstrated a large, dumbbell-shaped, homogenously gadolinium-enhanced mass in the right jugular foramen, extending medially to the cerebellopontine angle and caudally into the upper carotid space. Angiographic findings supported a diagnosis of schwannoma. Intraoperatively, the tumor appeared to involve the right glossopharyngeal nerve completely and the vagus nerve incompletely, and was incompletely resected. Microscopically, the tumor consisted predominantly of cords and nests of medium-sized cells with bland cytological features, surrounded by a pale basophilic mucin. Immunohistochemically, the tumor cells demonstrated reactivity for epithelial membrane antigen (membranous) and vimentin, with negative staining for S-100 protein, cytokeratin, CD34, glial fibrillary acidic protein (GFAP), synaptophysin, and chromogranin A. Based on the chordoid histology, an organoid lobular arrangement of the tumor cells, and the location of the tumor (jugular foramen), the differential diagnosis included not only a chordoma but also a paraganglioma (glomus jugulare tumor). Histological identification of typical meningotheliomatous areas, plus selective immunohistochemical panel, is important to establish the correct diagnosis. PMID:16792549

Takei, Hidehiro; Rivera, Andreana; Suzuki, Hiroyoshi; Bahrami, Armita; Powell, Suzanne Z

2006-07-01

26

Enxertos vasculares homólogos e heterólogos conservados em glicerina na fleboplastia da jugular em eqüinos / Arterial homograft and venous heterograft conserved in glycerin in the phleboplasty of the jugular in equines  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Doze eqüinos foram divididos aleatoriamente em dois grupos de seis animais (grupos I e II), com a finalidade de estudar a compatibilidade tecidual e a propriedade de indução de trombos de dois tecidos biológicos conservados em glicerina a 98%. Esses tecidos foram usados na restauração da jugular ext [...] erna e se constituíram de artéria carótida comum homóloga (ACCHo), no grupo I, e veia jugular externa heteróloga (VJEHe), no grupo II. Para a restauração, utilizaram-se duas técnicas de anastomose da jugular, sendo, no grupo I, a técnica de bypass e, no grupo II, a substituição de um segmento da jugular esquerda por meio de anastomose vascular término-terminal. Para avaliar a trombogênese local e a histocompatibilidade, foram realizados exames clínicos, hematológicos, ecoDopplercardiográficos e histológicos dos segmentos vasculares enxertados. Os segmentos foram colhidos após 45 dias da avaliação pós-operatória, tendo a jugular direita como testemunha para os exames histológicos. Ambos os tecidos foram compatíveis quando implantados nos eqüinos, sem processo inflamatório acentuado, indicativo de rejeição. A técnica de bypass não foi eficiente na restauração da jugular, ocorrendo trombose obliterante dos enxertos de ACCHo. A substituição completa do segmento da jugular por VJEHe pode ser viável para o restabelecimento do fluxo sangüíneo da jugular de eqüinos, desde que se mantenha a igualdade dos diâmetros entre o enxerto e o vaso receptor. Abstract in english Twelve horses were randomly divided into two groups of six animals each (groups I and II) in order to study the compatibility and trombogenicity of two biological tissues conserved in glycerin at 98% which were used to restore the external jugular. The tissues consisted of arterial homograft - ACCHo [...] (group I) and venous heterograft - VJEHe (group II). Two different techniques for jugular anastomosis were performed - bypass in group I and replacement of a segment of the left jugular by means of end to end vascular anastomosis in group II. Clinical, hematological, Doppler ultrasonography, and histological examinations of the grafted vascular segments were conducted to evaluate local trombogenicity and tissue compatibility. All animals had the segments collected after 45 days, being the right jugular used as standard for the histopathological exams. Both tissues were compatible since no serious inflammatory process indicative of rejection took place. The bypass technique was not efficient for jugular restoration because of the occurrence of obliterant trombosys of the ACCHo. The full replacement of a jugular segment by the VJEHe can be feasible in reestablishing blood flow through the jugular of horses as long as the diameters of the grafted tissue and the original blood vessel are kept the same.

D.R., Stainki; G.E.S., Alves; A.C., Vasconcelos; M.P., Barbosa; H.P., Oliveira.

2005-02-01

27

[Tumors of the glomus jugulare].  

Science.gov (United States)

Tumours of the glomus jugulare always raise diagnostic and therapeutic problems. We decided to review the pathology and clinical findings whilst reporting a typical case found on our neurology unit. After a brief review of the embryology, anatomy and histology of the glomus jugulare, the authors report the case of a patient who presented a recurrent intracranial form with involvement of several cranial nerves, together with associated involvement of the carotid glomus. This was a familial disease. The patient was operated on with excellent results. The authors then present a clinical description of the various signs in glomus tumours,; depending more on the origin of the tumours than on the length of history. They then criticize the diagnostic interest of radiology, emphasizing the interest of angiography which may demonstrate a pathological vascular focus derived from the internal carotid artery together with the vertebro-basilar system. Retrograde jugulography also provides important information. The treatment of glomus jugulare tumours is, above all, surgical. They are approached through the ear in order to localise the intra-petrous part, or else, they may be approached through the skull. A combined otological and neuro-surgical approach to sometimes necessary for the lesion may involve both the petromastoid region and the posterior cerebral fossa. Radiotherapy is often advised after operation, in view of the importance of the vascular component of these tumours. The results of treatment are, on the whole, satisfactory. PMID:180607

Mouren, P; Poinso, Y; Pellet, W; Lavieille, J; Soubeyrand, J; Mouren, M C; Gouron, P

1975-06-14

28

Jugular bulb diverticulum combined with high jugular bulb: a case report with CT and MRA findings  

International Nuclear Information System (INIS)

Jugular bulb diverticulum is a rare condition that is characterized by the outpouching of the jugular bulb, and this can lead to hearing loss, tinnitus and vertigo. A few reports have revealed the radiologic findings about jugular bulb diverticulum, but none of them have described the MRA findings concerning this lesion. We present here the CT and MR venography findings in regards to a large high jugular blub and diverticulum we observed in a 47-year-old woman

29

Jugular bulb diverticulum combined with high jugular bulb: a case report with CT and MRA findings  

Energy Technology Data Exchange (ETDEWEB)

Jugular bulb diverticulum is a rare condition that is characterized by the outpouching of the jugular bulb, and this can lead to hearing loss, tinnitus and vertigo. A few reports have revealed the radiologic findings about jugular bulb diverticulum, but none of them have described the MRA findings concerning this lesion. We present here the CT and MR venography findings in regards to a large high jugular blub and diverticulum we observed in a 47-year-old woman.

Ko, Seog Wan [College of Medicine, Chonbuk National Univ., Jeonju (Korea, Republic of)

2004-12-01

30

Embolia pulmonar séptica secundária à tromboflebite jugular: um caso de síndrome de Lemierre Septic pulmonary embolism secondary to jugular thrombophlebitis: a case of Lemierre's syndrome  

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Full Text Available A síndrome de Lemierre é caracterizada pela infecção aguda da orofaringe, complicada por trombose venosa jugular interna secundária à tromboflebite séptica, e por infecções metastáticas a vários órgãos distantes-mais freqüentemente os pulmões. Relatamos um caso de síndrome de Lemierre em uma mulher de 56 anos que se apresentou com massa cervical à direita e febre. Trombose venosa jugular interna foi demonstrada na ecografia. A tomografia computadorizada de tórax revelou múltiplas opacidades em ambos os pulmões. Uma biópsia pulmonar cirúrgica foi realizada por suspeita de metástases pulmonares. O exame anatomopatológico revelou êmbolos sépticos em parênquima pulmonar. Retrospectivamente, a paciente relatou história de faringite duas semanas antes da hospitalização. Após o diagnóstico, foi tratada com antibióticos de amplo espectro (cefuroxima por 7 dias e azitromicina por 5 dias e, posteriormente, devido à persistência de febre, cefepime por 7 dias. A tomografia computadorizada de tórax, realizada um mês após, mostrou resolução das opacidades.Lemierre's syndrome is characterized by acute oropharyngeal infection, complicated by internal jugular venous thrombosis secondary to septic thrombophlebitis, and by metastatic infections in various distant organs-most commonly in the lungs. We report a case of Lemierre's syndrome in a 56-year-old female who presented with right-sided neck mass and fever. Right internal jugular venous thrombosis was demonstrated on an ultrasound. A computed tomography scan of the chest revealed multiple opacities throughout both lungs. An open surgical biopsy was performed due to suspicion of pulmonary metastases. Anatomopathological examination revealed septic emboli in lung parenchyma. Retrospectively, the patient reported a history of pharyngitis two weeks prior to hospitalization. After the diagnosis had been made, the patient was treated with broad-spectrum antibiotics (cefuroxime for 7 days and azithromycin for 5 days; subsequently, because fever persisted, cefepime for 7 days. One month later, a computed tomography scan of the chest revealed resolution of the opacities.

Denise Rossato Silva

2008-12-01

31

Embolia pulmonar séptica secundária à tromboflebite jugular: um caso de síndrome de Lemierre / Septic pulmonary embolism secondary to jugular thrombophlebitis: a case of Lemierre's syndrome  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese A síndrome de Lemierre é caracterizada pela infecção aguda da orofaringe, complicada por trombose venosa jugular interna secundária à tromboflebite séptica, e por infecções metastáticas a vários órgãos distantes-mais freqüentemente os pulmões. Relatamos um caso de síndrome de Lemierre em uma mulher [...] de 56 anos que se apresentou com massa cervical à direita e febre. Trombose venosa jugular interna foi demonstrada na ecografia. A tomografia computadorizada de tórax revelou múltiplas opacidades em ambos os pulmões. Uma biópsia pulmonar cirúrgica foi realizada por suspeita de metástases pulmonares. O exame anatomopatológico revelou êmbolos sépticos em parênquima pulmonar. Retrospectivamente, a paciente relatou história de faringite duas semanas antes da hospitalização. Após o diagnóstico, foi tratada com antibióticos de amplo espectro (cefuroxima por 7 dias e azitromicina por 5 dias e, posteriormente, devido à persistência de febre, cefepime por 7 dias). A tomografia computadorizada de tórax, realizada um mês após, mostrou resolução das opacidades. Abstract in english Lemierre's syndrome is characterized by acute oropharyngeal infection, complicated by internal jugular venous thrombosis secondary to septic thrombophlebitis, and by metastatic infections in various distant organs-most commonly in the lungs. We report a case of Lemierre's syndrome in a 56-year-old f [...] emale who presented with right-sided neck mass and fever. Right internal jugular venous thrombosis was demonstrated on an ultrasound. A computed tomography scan of the chest revealed multiple opacities throughout both lungs. An open surgical biopsy was performed due to suspicion of pulmonary metastases. Anatomopathological examination revealed septic emboli in lung parenchyma. Retrospectively, the patient reported a history of pharyngitis two weeks prior to hospitalization. After the diagnosis had been made, the patient was treated with broad-spectrum antibiotics (cefuroxime for 7 days and azithromycin for 5 days; subsequently, because fever persisted, cefepime for 7 days). One month later, a computed tomography scan of the chest revealed resolution of the opacities.

Denise Rossato, Silva; Marcelo Basso, Gazzana; Ricardo, Albaneze; Paulo de Tarso Roth, Dalcin; Josi, Vidart; Nei, Gulcó.

1079-10-01

32

Anatomic study of portal vein: transpancreatic vessels injuries approach / Estudo anatômico da veia porta-hepática: abordagem cirúrgica portal transpancreática  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Introdução: No trauma abdominal, o comprometimento dos grandes vasos constitui uma situação de grande complexidade com altos índices de complicações e mortalidade. Nestes pacientes, a lesão da veia porta-hepática tem interesse em razão da dificuldade no diagnóstico e na abordagem cirúrgica. Objetivo [...] : Padronizar o plano de transecção do pâncreas visando o acesso cirúrgico mais seguro para os reparos das lesões da veia porta-hepática. Métodos: Procedeu-se à uma análise quantitativa para caracterizar a relação anatômica da veia porta-hepática e suas tributárias relacionando-as com o pâncreas. Nestes cadáveres, estudou-se as medidas de um triângulo anatômico que tem como base o limite superior da veia mesentérica superior e porção inicial da veia porta; como ápice, um ponto localizado no limite superior da confluência das veias esplênica e mesentérica superior, situado na linha média da veia mesentérica superior. Resultados: A veia porta-hepática é formada a 3.24cm da borda interna do arco duodenal numa localização que dista 1.61cm e 1.07 das bordas inferior e superior do pâncreas, respectivamente. Conclusão: O presente estudo nos permite concluir que, para se fazer o acesso à origem da veia porta-hepática, em caso de trauma deste vaso, deve-se proceder a secção do colo do pâncreas junto à veia mesentérica superior, pois a confluência entre ela e a veia esplênica ocorre, em média, a 1.07cm da borda superior da glândula, e a 1.61cm de sua borda inferior. Abstract in english Introduction: The commitment of the great blood-vessels make up a situation of great complexity and a high rate of the complications and mortality patients with abdominal trauma. The injury of the portal vein matters because of the difficulty on the diagnosis and the approach surgery. Objective: To [...] set the standard on the transverse section of the pancreas looking for a safer surgical access to repair the portal vein injuries. Methods: A quantitative analysis was performed to characterize the anatomical relationship between the portal vein and their tributaries relating them to the pancreas. On these corpses, the measurements of a anatomical triangle were studied. It base was the upper limit of the superior mesenteric vein and the initial portion of the portal vein; the apex, a point located on the upper limit of the confluence of the splenic vein and superior mesenteric vein, situated at the middle line of the superior mesenteric_ vein. Results: The portal vein is formed 3.24cm from the internal border of the duodenal arc at a distance of 1.61cm and 1.07 from the inferior and superior pancreas borders, respectively. Conclusion: The present study allow us to conclude that, to have access to the origin of the portal vein, in case of trauma of this vessel, one should proceed a transverse section of the neck of the pancreas next to the superior mesenteric vein, because its confluence with splenic vein occur, on average, 1.07cm and 1.61cm from the superior and inferior border of the gland, respectively.

Mario, Mantovani; Raquel Franco, Leal; Mauro José, Fontelles.

2002-08-01

33

Anatomic study of portal vein: transpancreatic vessels injuries approach Estudo anatômico da veia porta-hepática: abordagem cirúrgica portal transpancreática  

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Full Text Available Introduction: The commitment of the great blood-vessels make up a situation of great complexity and a high rate of the complications and mortality patients with abdominal trauma. The injury of the portal vein matters because of the difficulty on the diagnosis and the approach surgery. Objective: To set the standard on the transverse section of the pancreas looking for a safer surgical access to repair the portal vein injuries. Methods: A quantitative analysis was performed to characterize the anatomical relationship between the portal vein and their tributaries relating them to the pancreas. On these corpses, the measurements of a anatomical triangle were studied. It base was the upper limit of the superior mesenteric vein and the initial portion of the portal vein; the apex, a point located on the upper limit of the confluence of the splenic vein and superior mesenteric vein, situated at the middle line of the superior mesenteric_ vein. Results: The portal vein is formed 3.24cm from the internal border of the duodenal arc at a distance of 1.61cm and 1.07 from the inferior and superior pancreas borders, respectively. Conclusion: The present study allow us to conclude that, to have access to the origin of the portal vein, in case of trauma of this vessel, one should proceed a transverse section of the neck of the pancreas next to the superior mesenteric vein, because its confluence with splenic vein occur, on average, 1.07cm and 1.61cm from the superior and inferior border of the gland, respectively.Introdução: No trauma abdominal, o comprometimento dos grandes vasos constitui uma situação de grande complexidade com altos índices de complicações e mortalidade. Nestes pacientes, a lesão da veia porta-hepática tem interesse em razão da dificuldade no diagnóstico e na abordagem cirúrgica. Objetivo: Padronizar o plano de transecção do pâncreas visando o acesso cirúrgico mais seguro para os reparos das lesões da veia porta-hepática. Métodos: Procedeu-se à uma análise quantitativa para caracterizar a relação anatômica da veia porta-hepática e suas tributárias relacionando-as com o pâncreas. Nestes cadáveres, estudou-se as medidas de um triângulo anatômico que tem como base o limite superior da veia mesentérica superior e porção inicial da veia porta; como ápice, um ponto localizado no limite superior da confluência das veias esplênica e mesentérica superior, situado na linha média da veia mesentérica superior. Resultados: A veia porta-hepática é formada a 3.24cm da borda interna do arco duodenal numa localização que dista 1.61cm e 1.07 das bordas inferior e superior do pâncreas, respectivamente. Conclusão: O presente estudo nos permite concluir que, para se fazer o acesso à origem da veia porta-hepática, em caso de trauma deste vaso, deve-se proceder a secção do colo do pâncreas junto à veia mesentérica superior, pois a confluência entre ela e a veia esplênica ocorre, em média, a 1.07cm da borda superior da glândula, e a 1.61cm de sua borda inferior.

Mario Mantovani

2002-08-01

34

Trauma da Veia Porta Portal vein injury  

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Full Text Available OBJETIVO: O trauma da veia porta é raro e freqüentemente fatal por causa de exsanguinação e alta incidência de lesões de estruturas adjacentes. Devido às pecualiaridades desta lesão e diferentes condutas propostas na literatura, o objetivo dos autores é relatar a experiência neste tipo de lesão. MÉTODO: Estudo retrospectivo, de janeiro de 1994 e dezembro de 2001, de 1370 pacientes submetidos à laparotomia devido trauma abdominal. Entre esses, 15 pacientes apresentavam lesão da veia porta. As lesões foram classificadas conforme a sua extensão e localização. RESULTADOS: O mecanismo de trauma predominante foi o penetrante. O diagnóstico da lesão foi realizado no intraoperatório. Os procedimentos executados foram: sutura, anastomose término-terminal e ligadura da veia porta. A mortalidade foi de 53,3%. CONCLUSÃO: A lesão da veia porta possui alta taxa de mortalidade e o atendimento adequado está diretamente relacionado à sobrevida.BACKGROUND: Portal vein injury is rare and frequently lethal because of exsanguination and high incidence of injuries to the adjacent structures. Due the peculiarity of this lesion and different conducts proposed in the literature, the authors' objetive is to report their experience in the treatment of this lesion. METHODS: This study, is a retrospective analysis between January 1994 and December 2001, during which 1370 patients were treated with laparotomy for isolated abdominal trauma. Among these patients 15 had injury to the portal vein. The injuries were classified according to extension and location. RESULTS: The predominant mechanism of trauma was penetrating. The diagnosis was made intraoperatively. The procedures were: suture, end-to-end anastomosis and ligation of the portal vein. The mortality rate was 53,3%. CONCLUSION: Portal vein lesion had high mortality and advanced assistance is essential to increase survivors.

Gustavo Pereira Fraga

2003-02-01

35

[The jugular foramen, the inferior bulb of the jugular vein and their surgical approach].  

Science.gov (United States)

Anatomical features of the sigmoid sinus and internal jugular vein and their connections are described. The jugular foramen is really only the opening of a bony canal between occipital and temporal bones, and is equivalent to a connective opening between the occipital vertebra and petrosal bone. The junction between the sigmoid sinus and internal jugular vein has the form and probably also the function of a siphon, but one in which the two arms are at right-angles. The jugular vein sinus has numerous vessels emptying into it, including some; condylar veins and inferior petrosal sinus, that are of high importance: valves are present at their orifices and the jugular sinus contains cords as in the cardiac cavities. The jugular vein sinus certainly plays a physiologic role in venous flow: a rigid-wall canal, the sigmoid sinus is followed by one with flexible, easily collapsible walls: the jugular vein. The latter is submitted to very high negative pressures that have to be compensated for by the sigmoido-jugular siphon in order to maintain cerebral vascular filling. Surgical approach to the jugular vein sinus is complicated by two factors: the facial nerve and hemorrhage. The facial nerve in its bony canal is situated immediately adjacent to the jugular sinus and must be displaced to reach the vein. The sinus is almost always approached for jugular glomus tumors, which are very hemorrhagic lesions. To prevent blood loss, the sigmoid sinus and then the external carotid are linked to the jugular vein.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:6508117

Brémond, G; Magnan, J

1984-01-01

36

[Thrombosis of the jugular vein during pregnancy].  

Science.gov (United States)

Thrombosis of the jugular vein is a rare complication during pregnancy. In most cases the thrombogenic factor was ovarian hyperstimulation syndrome occurred during the process of assisted reproductive technology or inherited or acquired thrombophilia. Authors report a case of jugular vein thrombosis occurred after in vitro fertilization. On the basis of the literature thromboprophylaxis should be indicated for patients who develop ovarian hyperstimulation syndrome, and also be considered for women with inherited or acquired thrombophilia, while undergoing assisted reproductive techniques. PMID:21979224

Vonnák, Eszter; Langmár, Zoltán; Sipos, Miklós; Pajor, Attila

2011-10-16

37

Intradural Jugular Paragangliomas: Complications and Sequelae  

OpenAIRE

Objectives: To present the long-term results of a group of patients who underwent surgery for intradural jugular paragangliomas. We discuss the complications, sequelae, and evolution of recurrences and behavior of residual tumors. Methods: From 1989 to 2002, 11 patients with intradural jugular paragangliomas underwent surgery using different approaches. The paragangliomas were grouped according to the classification of Fisch. Results: Total removal of the paraganglioma was possible in eight p...

Magliulo, Giuseppe; Parrotto, Donato; Alansi, Wael; Cuiuli, Giuseppe; Alla, Francesca Romana

2008-01-01

38

Tinnitus originating from an abnormal jugular bulb: treatment by jugular vein ligation.  

Science.gov (United States)

Tinnitus and hearing loss can occur in patients with a high-riding abnormal jugular bulb. Jugular vein ligation in selected patients can cure tinnitus and reverse hearing loss. A 39-year-old woman reported a 4-year history of right-sided tinnitus of increasing intensity associated with a mild hearing loss. Extensive evaluation revealed only an enlarged right jugular bulb with dehiscence of the normal petrous bony septum between the bulb and the middle ear. The patient underwent ligation of the right internal jugular vein and noted immediate cessation of tinnitus and the return of normal hearing. Review of the literature suggests that jugular vein ligation is appropriate in selected cases of venous tinnitus. PMID:3625880

Golueke, P J; Panetta, T; Sclafani, S; Varughese, G

1987-09-01

39

Estudo comparativo entre enxerto autógeno e enxerto muscular coberto com tubo de veia autógeno em nervos tibiais de ratos wistar, utilizando o fluoro-gold® como marcador neuronal Comparative study between autogenous graft and muscular graft covered with autogenous vein tube in wistar rats' tibial nerves using the fluoro-gold® as a neuronal marker  

OpenAIRE

Este trabalho teve como objetivo o estudo da regeneração nervosa através da contagem de neurônios comparando duas técnicas cirúrgicas no tratamento da perda de substância nervosa nos membros inferiores em 15 ratos. Inicialmente obteve-se tubo de veia de 12mm de comprimento retirado da jugular externa esquerda. A seguir, opera-se os dois membros inferiores, expondo o nervo tibial de cada lado e ressecando um segmento de 8 mm do nervo, simulando, ao mesmo tempo, a perda de substância e ...

Marcela Fernandes; Sandra Gomes Valente; Débora Amado; Maria José da Silva Fernandes; Maria da Graça Naffah-Mazzacoratti; João Baptista Gomes dos Santos; Flávio Faloppa; Vilnei Mattioli Leite

2007-01-01

40

Internal jugular vein thrombosis: an uncommon presentation.  

Science.gov (United States)

Internal jugular vein (IJV) thrombosis is a rare entity. It is usually secondary to various etiologies such as ovarian hyperstimulation, deep vein thrombosis of upper limbs, venous catheter, malignancy, trauma, infection, and neck surgery and hypercoagulable status. We report an unusual case of internal jugular vein thrombosis with cerebral sinus thrombosis, postpartum in a 22-year-old female patient who presented with a painful swelling on the left side of her neck. Diagnosis was established by color Doppler ultrasonography and magnetic resonance venography. Thorough evaluation of the patient revealed no etiological factor leading to thrombosis. Patient was treated with low-molecular-weight heparin. PMID:23518847

Mittal, Sachin; Garg, Pradeep; Verma, Surender; Bhoriwal, Sandeep; Aggarwal, Sourabh

2013-03-21

41

The high position of the jugular bulb.  

Science.gov (United States)

The relationship between the bottom of the hypotympanon and the jugular bulb has been investigated on the basis of a histological analysis of 815 temporal bones. A high position of the jugular bulb has been found in 3.5% of the temporal bones examined. Only exceptionally does it occur bilaterally and is more often found on the right than left side. We distinguish two localizations of the high position of the bulb in the hypotympanon: the lateral and the medial. In either case the bulb may be damaged during myringotomy or during the removal of granulation tissue in middle ear surgery. Injury at myringotomy can be avoided only if there is a reinforcement of the bony wall. In the lateral position, the jugular bulb may be damaged when the tympanomeatal flap is being elevated. The bulb can occasionally be mistaken for a jugular glomus tumour. There is hardly any difference between cases where the bone between the bulb and the middle ear space is dehiscent or only very thin. The thickness of the bony shell is only 0.1-0.3 mm--thus there is no real protection against instrumental injuries. PMID:443015

Suboti?, R

1979-01-01

42

Radiologic approach to jugular bulb paragangliomas  

International Nuclear Information System (INIS)

Paragangliomas are highly vascular neoplasms that derive from neuroendocrine tissue. They account for about 0.6% of all head and neck tumors and most commonly occur in the carotid bifurcation, tympanic cavity, jugular foramen and in the area of vagal ganglia below the skull base. The aim of the study was retrospective evaluation of radiological features of jugular bulb paragangliomas in the group of 22 patients. In the analyzed group, there were 16 females and 7 males, aged 14-81. All the patients underwent CT and MRI, in 12 cases carotid angiography and in 3 cases Doppler sonography was performed. We evaluated typical radiological features of jugular bulb paragangliomas and usefulness of various imaging methods in diagnosis and assessment of this pathology. Computed tomography in all patients showed widening of the jugular foramen. MR images in 19 cases revealed the presence of intra-tumoral signal-void areas representing tumor vessels. Both methods showed intensive post-contrast enhancement of all tumors. Carotid angiography presented high vascularity and arterio-venous fistulas in all tumors. In the performed Doppler ultrasound studies, the tumors were not visible. In all cases, increased blood flow in the ipsilateral carotid artery and vein was observed, and in 2 patients with a coexisting carotid body paraganglioma was diagnosed. CT and MRI allow best evaluation of tumor extension and present features characteristic of jugular bulb paraganglioma. Carotid angiogragular bulb paraganglioma. Carotid angiography confirms the diagnosis of a vascular tumor and is used for its preoperative embolization. Ultrasonography is a useful technique for exclusion of coexisting carotid body paraganglioma. (author)

43

Effects of a high jugular fossa and jugular bulb diverticulum on the inner ear  

International Nuclear Information System (INIS)

From a series of patients undergoing routine radiographic examination, 112 temporal bones with a high jugular fossa were selected. Among these, 43 jugular bulb diverticula were found. The structures affected by a high fossa or diverticulum were recorded and correlated to the clinical symptoms of the patient. The vestibule was suspected to be affected in five patients. Two of these patients had tinnitus and vertigo, and three had hearing loss. In one of the latter the hearing loss was most marked in the supine position. The cochlea was close to the fossa in three patients, all of whom had tinnitus. Four patients had a defect of the posterior semicircular canal. One of them lost his hearing after a severe fit of coughing, became unsteady and showed signs of a fistula. The internal acoustic meatus and the mastoid portion of the facial canal were affected in two and four patients, respectively, who had no recorded symptoms. Twelve of 34 patients with Meniere's disease and a high jugular fossa on the side of the diseased ear had a dehiscence of the vestibular aqueduct caused by the fossa or diverticulum, compared with nine of 58 patients in the unselected material. For comparison and demonstration of topographic relationships, 58 casts of unselected radiograhed temporal bone specimens with high jugular fossae or diverticula were investigated. In patients with a high jugular fossa or jugular bulb diverticulum, tomographic assessment may be of value. (orig.)

44

Aspectos clínicos, ultra-sonográficos e venográficos da tromboflebite jugular experimental em equinos Equine experimental thrombophlebitis: clinical, ultrasonographic and venographic evaluation  

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Full Text Available A tromboflebite jugular ocorre frequentemente em equinos, decorrendo geralmente de processos mórbidos associados à iatrogenia, podendo levar a perda de função, edema cefálico, diminuição do desempenho atlético e ainda causar o óbito. Esta enfermidade nos equinos apesar de frequente é pouco conhecida quanto à sua evolução e tratamentos. O objetivo deste trabalho foi avaliar a evolução da tromboflebite jugular experimental em equinos, quanto às alterações clínicas e estruturais envolvidas na enfermidade, observando-se os aspectos clínicos, ultra-sonográficos e venográficos no contexto do trombo e do vaso, quanto à possibilidade de recanalização do trombo produzido e da vascularização compensatória. A tromboflebite da veia jugular foi induzida, unilateralmente, em 05 equinos nos quais previamente à indução da tromboflebite e diariamente após foram observadas manifestações clínicas e realizados exames ultra-sonográficos. Venografias foram feitas nos momentos pré-indução, na indução e a cada seis dias após a indução da tromboflebite, verificando-se a recanalização do trombo oclusivo e a presença de vasos na drenagem sanguínea compensatória. Observou-se a ocorrência de edema moderado das regiões parotídea, massetérica e supra-orbitária e discreto edema submandibular que reduziram até o 6º dia, permanecendo apenas discreto aumento parotídeo. O ingurgitamento da jugular cranial a região da indução permaneceu durante todo o período de avaliação. A porção caudal à tromboflebite mostrou ingurgitamento frente ao garrote na entrada do tórax desde o primeiro dia após a indução. Os exames ultra-sonográficos mostraram formação de trombo oclusivo total durante todo o período de observação em 3 animais e o restabelecimento parcial do fluxo na jugular em 2 animais e a presença de vasos colaterais conduzindo o sangue da porção cranial para a porção caudal à obstrução. As venografias revelaram fluxo sanguíneo "linear" normal no momento pré-operatório, constatando nos momentos pós-operatórios a presença oclusiva do trombo, com o contraste preenchendo os vasos tributários compensatórios direcionados à porção caudal à oclusão da veia ou ainda estagnado cranialmente ao trombo. Conclui-se que a trombose oclusiva na tromboflebite jugular experimental e unilateral sofre recanalização e compensação vascular por vasos tributários de drenagem, com redução gradativa dos sinais decorrentes da estase sanguínea de retorno, especificamente as regiões cefálicas com edema. Estudos envolvendo a tromboflebite jugular nos equinos devem evoluir nos aspectos experimental e clínico.Jugular thrombophlebitis is a common complication of disease processes associated with repeated venipuncture, injection of irritant solutions, and the use of indwelling catheters, especially with bacterial contamination. Bilateral thrombophlebitis may result in edema of the soft tissues of the head, reduction of athletic performance and even death of the animal. This disease, although common in horses, is not much known regarding its evolution and treatment. The aim of this study was to evaluate the clinical and structural changes of experimentally induced jugular thrombophlebitis in horses, through clinical examination, ultrasound and venography of the thrombus and the vessel, verifying the possibility of thrombus recanalization and compensatory produced blood flow. The jugular thrombophlebitis was induced unilaterally into 5 horses, monitored by clinical (general, regional and local and ultrassonographycs exams. Venographs were made at pre-induction, induction and every 6 days after induction of thrombophlebitis, in order to observe recanalization of the occlusive thrombus and presence of blood vessels in the drainage allowance. Occurrence of moderate edema was observed in the parotid, masseter and supra orbital regions, and mild edema in the submandibular region. The jugular engorgement of the cranial region of induction persisted throughout the period of ev

Carlos Alberto Hussni

2012-07-01

45

Aspectos clínicos, ultra-sonográficos e venográficos da tromboflebite jugular experimental em equinos / Equine experimental thrombophlebitis: clinical, ultrasonographic and venographic evaluation  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese A tromboflebite jugular ocorre frequentemente em equinos, decorrendo geralmente de processos mórbidos associados à iatrogenia, podendo levar a perda de função, edema cefálico, diminuição do desempenho atlético e ainda causar o óbito. Esta enfermidade nos equinos apesar de frequente é pouco conhecida [...] quanto à sua evolução e tratamentos. O objetivo deste trabalho foi avaliar a evolução da tromboflebite jugular experimental em equinos, quanto às alterações clínicas e estruturais envolvidas na enfermidade, observando-se os aspectos clínicos, ultra-sonográficos e venográficos no contexto do trombo e do vaso, quanto à possibilidade de recanalização do trombo produzido e da vascularização compensatória. A tromboflebite da veia jugular foi induzida, unilateralmente, em 05 equinos nos quais previamente à indução da tromboflebite e diariamente após foram observadas manifestações clínicas e realizados exames ultra-sonográficos. Venografias foram feitas nos momentos pré-indução, na indução e a cada seis dias após a indução da tromboflebite, verificando-se a recanalização do trombo oclusivo e a presença de vasos na drenagem sanguínea compensatória. Observou-se a ocorrência de edema moderado das regiões parotídea, massetérica e supra-orbitária e discreto edema submandibular que reduziram até o 6º dia, permanecendo apenas discreto aumento parotídeo. O ingurgitamento da jugular cranial a região da indução permaneceu durante todo o período de avaliação. A porção caudal à tromboflebite mostrou ingurgitamento frente ao garrote na entrada do tórax desde o primeiro dia após a indução. Os exames ultra-sonográficos mostraram formação de trombo oclusivo total durante todo o período de observação em 3 animais e o restabelecimento parcial do fluxo na jugular em 2 animais e a presença de vasos colaterais conduzindo o sangue da porção cranial para a porção caudal à obstrução. As venografias revelaram fluxo sanguíneo "linear" normal no momento pré-operatório, constatando nos momentos pós-operatórios a presença oclusiva do trombo, com o contraste preenchendo os vasos tributários compensatórios direcionados à porção caudal à oclusão da veia ou ainda estagnado cranialmente ao trombo. Conclui-se que a trombose oclusiva na tromboflebite jugular experimental e unilateral sofre recanalização e compensação vascular por vasos tributários de drenagem, com redução gradativa dos sinais decorrentes da estase sanguínea de retorno, especificamente as regiões cefálicas com edema. Estudos envolvendo a tromboflebite jugular nos equinos devem evoluir nos aspectos experimental e clínico. Abstract in english Jugular thrombophlebitis is a common complication of disease processes associated with repeated venipuncture, injection of irritant solutions, and the use of indwelling catheters, especially with bacterial contamination. Bilateral thrombophlebitis may result in edema of the soft tissues of the head, [...] reduction of athletic performance and even death of the animal. This disease, although common in horses, is not much known regarding its evolution and treatment. The aim of this study was to evaluate the clinical and structural changes of experimentally induced jugular thrombophlebitis in horses, through clinical examination, ultrasound and venography of the thrombus and the vessel, verifying the possibility of thrombus recanalization and compensatory produced blood flow. The jugular thrombophlebitis was induced unilaterally into 5 horses, monitored by clinical (general, regional and local) and ultrassonographycs exams. Venographs were made at pre-induction, induction and every 6 days after induction of thrombophlebitis, in order to observe recanalization of the occlusive thrombus and presence of blood vessels in the drainage allowance. Occurrence of moderate edema was observed in the parotid, masseter and supra orbital regions, and mild edema in the submandibular region. Th

Carlos Alberto, Hussni; Roberta Galvano, Barbosa; Alexandre Correa, Borghesan; Hamilton Almeida, Rollo; Ana Liz Garcia, Alves; Marcos Jun, Watanabe; Vania Maria de Vasconcelos, Machado; Nereide Freire, Cerqueira.

2012-07-01

46

Twelve Cases of Jugular Foramen Neurinoma  

OpenAIRE

Twelve patients with jugular foramen neurinoma were operated on at our clinic between 1974 and 1990. The initial signs and symptoms were variable; dysfunctions of the 7th, 8th, 9th, 10th, and 11th nerves were frequently observed. Among these, involvement of the eighth nerve was most frequent, and three patients were given a misdiagnosis of acoustic neurinoma. Computed tomography scan and magnetic resonance imaging were useful not only for the correct diagnosis, but also for planning the surgi...

Tomio, Sasaki; Takakura, Kintomo

1991-01-01

47

Selective Embolization of Glomus Jugulare Tumors  

OpenAIRE

Four patients with grade C or D1 glomus jugulare tumors who underwent preoperative highly selective embolization followed by infratemporal fossa removal of their tumors were compared to three patients undergoing surgery alone with respect to intraoperative blood loss, operative time, cranial nerve palsy, length of hospitalization, and perioperative complications. Embolized patients demonstrated a marked reduction in blood loss (650 vs 1375 cc) compared with the nonembolized group. Operative t...

Larouere, Michael J.; Zappia, John J.; Wilner, Harvey I.; Graham, Malcolm D.; Lundy, Larry B.

1994-01-01

48

Sensorineural hearing loss caused by a high jugular bulb.  

Science.gov (United States)

A 15-year-old female presented with sensorineural hearing loss related to a high jugular bulb. She noticed temporary worsening of her right hearing with mild dizziness when her neck was compressed whereas she noticed no change in her left hearing. An audiogram showed temporary worsening of low tone bone-conduction on such occasions. A large jugular bulb covering the right round window was observed through the perforation. Computed tomography (CT) revealed a large jugular bulb obliterating the round window niche. Deterioration of bone conduction during neck compression was thought to be caused by the protrusion of the jugular bulb into the inner ear via the round window. This case suggested the possibility of sensorineural hearing loss due to the jugular bulb. As in the present case, jugular bulb or vein-related ear disorders should be examined by neck compression. PMID:11144839

Tsunoda, A

2000-11-01

49

Cerebellopontine angle meningioma with a high jugular bulb.  

Science.gov (United States)

A cerebellopontine angle meningioma originating from the skull base over a high jugular bulb is quite rare. We report a case of a 68-year-old woman who had a right cerebellopontine angle meningioma with a prominent high jugular bulb. CT and MRI revealed a round tumour which attached to a bony prominence over the high jugular bulb. The apex of the jugular bulb was 3 mm higher than the floor of the internal auditory canal. The tumour was removed via a suboccipital retrosigmoid approach. The bony projection was drilled off carefully using a diamond drill; the jugular bulb became visible through the thinned bone. When a meningioma of this type is removed including bony changes, special attention is needed to avoid injury to the jugular bulb. PMID:11535017

Akaishi, K; Hongo, K; Tanaka, Y; Kobayashi, S

2001-09-01

50

Glomus jugulare presenting with isolated facial nerve palsy.  

Science.gov (United States)

Glomus jugulare is a rare slow growing tumor occurring within the jugular foramen that rarely presents with isolated symptoms. Although histologically benign, these tumors are locally destructive because of their proximity to the petrous bone, the lower cranial nerves, and the major vascular structures (Miller et al. (2009) and Silverstone (1973)). We wish to report a glomus jugulare tumor eroding the petrous bone and producing an ipsilateral peripheral facial weakness. The mechanism of this erosion is discussed. PMID:25374954

Nunez, Angelica A; Ramos-Duran, Luis R; Cuetter, Albert C

2014-01-01

51

Abnormal formation and communication of external jugular vein  

OpenAIRE

Knowledge of variations in the origin, course and termination of external jugular vein may be important for surgeons, radiologists, and plastic surgeons. In this report, we present a variation in the origin of the external jugular vein and its abnormal communication with the cephalic vein. The external jugular vein was formed by the union of facial and retromandibular veins. Its course and termination were normal but it communicated with the cephalic vein through a large communicating vein, w...

Sb, Nayak; Kv, S.

2008-01-01

52

[Valve injury: a new complication of internal jugular vein cannulation].  

Science.gov (United States)

Although internal jugular vein cannulation is performed commonly, most physicians are not aware of existence of the internal jugular venous valve. This is the only valve between the right atrium of the heart and the brain, and it has an important role of preventing retrograde blood flow and increased back pressure to the brain. In this study, anatomic appearance of human internal jugular valves is described, and the competence of these valves is assessed. We examined also a safe approach to percutaneous cannulation of the internal jugular vein to avoid this complication. In the cadaveric subjects, the internal jugular vein with its valve was removed at the time of autopsy. In the living subjects, to examine the movement of this valve, endoscopic visualization utilizing the superfine fiberscope, and ultrasound techniques were applied. Next, to detect the competence of the jugular venous valve, transvalvular pressure gradients were measured. Nineteen internal jugular valves were obtained from 20 cadaveric subjects. These valves were situated directly above the termination of the internal jugular vein into the inferior bulb. The opening and closing of the valve were easily visualized with both superfine fiberscope and real-time ultrasound technique. Patients with competent valves showed transvalvular pressure gradients of 50-100 mmHg during cough-induced high intrathoracic pressure. Internal jugular venous valve is located 0.5-2.0 cm above the union of the subclavian and internal jugular veins, and the central approach performed at the summit of the cervical triangle has been shown to have a risk of injuring the internal jugular venous valve.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:1613959

Imai, M; Hanaoka, Y; Murakami, F; Sugawara, K; Kemmotsu, O; Sasaki, K

1992-06-01

53

Traumatic Common Carotid—Jugular Fistula: Report of 2 Cases  

OpenAIRE

Traumatic common carotid artery-to-internal jugular vein fistula is a rare entity that is not usually detected during the acute injury phase. We present 2 cases of traumatic carotid–jugular fistula. Both involved the right side of the neck, and both were due to injury from a firearm. The patients exhibited signs of high cardiac output.

Ezemba, Ndubueze; Ekpe, Eyo E.; Ezike, Humphrey A.; Anyanwu, Chijioke H.

2006-01-01

54

Computational haemodynamics in stenotic internal jugular veins.  

Science.gov (United States)

An association of stenotic internal jugular veins (IJVs) to anomalous cerebral venous hemodynamics and Multiple Sclerosis has been recently hypothesized. In this work, we set up a computational framework to assess the relevance of IJV stenoses through numerical simulation, combining medical imaging, patient-specific data and a mathematical model for venous occlusions. Coupling a three-dimensional description of blood flow in IJVs with a reduced one-dimensional model for major intracranial veins, we are able to model different anatomical configurations, an aspect of importance to understand the impact of IJV stenosis in intracranial venous haemodynamics. We investigate several stenotic configurations in a physiologic patient-specific regime, quantifying the effect of the stenosis in terms of venous pressure increase and wall shear stress patterns. Simulation results are in qualitative agreement with reported pressure anomalies in pathological cases. Moreover, they demonstrate the potential of the proposed multiscale framework for individual-based studies and computer-aided diagnosis. PMID:24671429

Caiazzo, Alfonso; Montecinos, Gino; Müller, Lucas O; Haacke, E Mark; Toro, Eleuterio F

2015-03-01

55

Management of the Jugular Bulb During Lateral Skull Base Surgery  

OpenAIRE

The intraoperative management of a patent jugular bulb presents a formidable challenge during the treatment of lateral skull base lesions. Whether to preserve, partially occlude, or completely sacrifice this critical structure is a decision best made following a multifactorial analysis of preoperative clinicoradiographic data, tumor histopathology, and intraoperative findings. Twenty-six patients with tumors requiring dissection near a patent jugular bulb were reviewed. Ten patients had super...

Kelley, Timothy F.; Leonetti, John P.; Newell, David J.; Remington, William J.

1994-01-01

56

Transmastoid-Infralabyrinthine Tailored Surgery of Jugular Paragangliomas  

OpenAIRE

This article presents our experience with the management and outcomes of patients with sporadic glomus jugular tumors using a tailored surgical approach. We conducted a retrospective study of 49 patients with sporadic jugular paragangliomas. Thirty-eight patients (78%) were treated using the transmastoid-infralabyrinthine (TM-IL) approach, and 11 (22%) were treated with the infratemporal fossa type A (IFT-A) approach. Mean follow-up period was 8.2 years. Surgical cure was achieved in all but ...

Gjuric, Mislav; Bilic, Mario

2009-01-01

57

LUNG MALIGNANCY PRESENTING AS BILATERAL INTERNAL JUGULAR VEIN THROMBOSIS  

OpenAIRE

Venous thrombosis may be fatal, for example by a pulmonary embolism and right or left atrial thrombosis. Alternatively, deep vein thrombosis may follow a benign pattern such as femoral and popliteal vein thrombosis. Internal Jugular vein (IJV) thrombosis is a rare entity. Internal jugular vein thrombosis is a serious event with potentially fatal outcome, where the clinical symptoms may be vague or absent. It is usually secondary to various etiologies such as catheter, malignancy, trauma, infe...

Ab. Hameed Raina; Feroz Ahmad Wani; Fayaz Ahmad Bhat; Khalid Hamid Changal; Manzoor Ahmad Raina; Ghulam Nabi Dhobi

2013-01-01

58

Comunicación Interna y formación profesional  

Scientific Electronic Library Online (English)

Full Text Available SciELO Argentina | Language: Spanish Abstract in portuguese O artigo aborda a importância da orientação docente na apertura de novas opções disponíveis no campo profissional das Comunicações Internas para os estudantes de Relaçõoes Públicas. Por outro lado, se indicam as atuais necessidades de atualização e incorporação de novas técnicas e ferramentas profis [...] sionais para o trabalho no campo real da disciplina. Esta permanente interação entre prática e teoria deve ser um estímulo para que os docentes atualizem a bibliografa e incorporem casos nos planos de estudo e para a apresentação de ensaios acadêmicos e presentem livros para a hierarquização das Relações Públicas como disciplina acadêmica. Em síntese, o artigo convida à reflexão pessoal sobre a situação atual da comunicação interna nas organizações e sus principais desafíos em vista a um futuro atravessado pela globalização e os avances tecnológicos. Abstract in spanish El artículo aborda en su desarrollo la importancia de la orientación docente en la apertura de nuevas opciones disponibles en el campo profesional de las Comunicaciones Internas para los estudiantes de la carrera de Relaciones Públicas. Por otra parte, se señalan las actuales necesidades de actualiz [...] ación e incorporación de nuevas técnicas y herramientas profesionales con vistas al trabajo en el campo real de la disciplina. Esta permanente interacción entre práctica y teoría debe ser un estímulo para que los docentes no sólo mantengan actualizada la bibliografía e incorporen casos en los planes de estudio sino, para que presenten ensayos académicos o publiquen textos que le den jerarquía a las Relaciones Públicas como disciplina académica. En síntesis, el artículo invita a la reflexión profesional sobre la situación actual de la comunicación interna en las organizaciones y sus principales desafíos en vistas de un futuro atravesado por la globalización y los avances tecnológicos. Abstract in english The article approaches the importance of educational guidance in the offering of new options within the professional feld of Internal Communications for the students of Public Relations careers. In addition, present professional needs of being updated in new communication techniques and tools are po [...] inted out. This permanent interaction between practice and theory must be a stimulus so that professors could update bibliography and incorporate study cases in the subjects curricula. Likewise, the article enhances the value of academic research in order to generate publications that contribute to reinforce relevance of Public Relations as a discipline. The article appeals to professional refection about internal communication in the organizations and their main challenges looking forward a future crossed by globalisation and technological changes.

Marisa, Cuervo.

2011-03-01

59

New Treatment of Vertigo Caused by Jugular Bulb Abnormalities.  

Science.gov (United States)

Objective. Jugular bulb abnormalities can induce tinnitus, hearing loss, or vertigo. Vertigo can be very disabling and may need surgical treatments with risk of hearing loss, major bleeding or facial palsy. Hence, we have developed a new treatment for vertigo caused by jugular bulb anomalies, using an endovascular technique. Patients. Three patients presented with severe vertigos mostly induced by high venous pressure. One patient showed downbeat vertical nystagmus during the Valsalva maneuver. The temporal-bone computed tomography scan showed a high rising jugular bulb or a jugular bulb diverticulum with dehiscence and compression of the vestibular aqueduct in all cases. Intervention. We plugged the upper part of the bulb with coils, and we used a stent to maintain the coils and preserving the venous permeability. Results. After 12- to 24-month follow-up, those patients experienced no more vertigo, allowing return to work. The 3-month arteriographs showed good permeability of the sigmoid sinus and jugular bulb through the stent, with complete obstruction of the upper part of the bulb in all cases. Conclusion. Disabling vertigo induced by jugular bulb abnormalities can be effectively treated by an endovascular technique. This technique is minimally invasive with a probable greater benefit/risk ratio compare with surgery. PMID:24379171

Hitier, Martin; Barbier, Charlotte; Marie-Aude, Thenint; Moreau, Sylvain; Courtheoux, Patrick; Patron, Vincent

2013-12-30

60

Radiosurgery of Glomus Jugulare Tumors: A Meta-Analysis  

Energy Technology Data Exchange (ETDEWEB)

Purpose: During the past two decades, radiosurgery has arisen as a promising approach to the management of glomus jugulare. In the present study, we report on a systematic review and meta-analysis of the available published data on the radiosurgical management of glomus jugulare tumors. Methods and Materials: To identify eligible studies, systematic searches of all glomus jugulare tumors treated with radiosurgery were conducted in major scientific publication databases. The data search yielded 19 studies, which were included in the meta-analysis. The data from 335 glomus jugulare patients were extracted. The fixed effects pooled proportions were calculated from the data when Cochrane's statistic was statistically insignificant and the inconsistency among studies was <25%. Bias was assessed using the Egger funnel plot test. Results: Across all studies, 97% of patients achieved tumor control, and 95% of patients achieved clinical control. Eight studies reported a mean or median follow-up time of >36 months. In these studies, 95% of patients achieved clinical control and 96% achieved tumor control. The gamma knife, linear accelerator, and CyberKnife technologies all exhibited high rates of tumor and clinical control. Conclusions: The present study reports the results of a meta-analysis for the radiosurgical management of glomus jugulare. Because of its high effectiveness, we suggest considering radiosurgery for the primary management of glomus jugulare tumors.

Guss, Zachary D.; Batra, Sachin [Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, MD (United States); Limb, Charles J. [Department of Otolaryngology, Johns Hopkins Hospital, Baltimore, MD (United States); Li, Gordon [Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA (United States); Sughrue, Michael E. [Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, CA (United States); Redmond, Kristin [Department of Radiation Oncology, Johns Hopkins Hospital, Baltimore, MD (United States); Rigamonti, Daniele [Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, MD (United States); Parsa, Andrew T. [Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, CA (United States); Chang, Steven [Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA (United States); Kleinberg, Lawrence [Department of Radiation Oncology, Johns Hopkins Hospital, Baltimore, MD (United States); Lim, Michael, E-mail: mlim3@jhmi.edu [Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, MD (United States)

2011-11-15

61

Effects of a high jugular fossa and jugular bulb diverticulum on the inner ear. A clinical and radiologic investigation  

Energy Technology Data Exchange (ETDEWEB)

From a series of patients undergoing routine radiographic examination, 112 temporal bones with a high jugular fossa were selected. Among these, 43 jugular bulb diverticula were found. The structures affected by a high fossa or diverticulum were recorded and correlated to the clinical symptoms of the patient. The vestibule was suspected to be affected in five patients. Two of these patients had tinnitus and vertigo, and three had hearing loss. In one of the latter the hearing loss was most marked in the supine position. The cochlea was close to the fossa in three patients, all of whom had tinnitus. Four patients had a defect of the posterior semicircular canal. One of them lost his hearing after a severe fit of coughing, became unsteady and showed signs of a fistula. The internal acoustic meatus and the mastoid portion of the facial canal were affected in two and four patients, respectively, who had no recorded symptoms. Twelve of 34 patients with Meniere's disease and a high jugular fossa on the side of the diseased ear had a dehiscence of the vestibular aqueduct caused by the fossa or diverticulum, compared with nine of 58 patients in the unselected material. For comparison and demonstration of topographic relationships, 58 casts of unselected radiograhed temporal bone specimens with high jugular fossae or diverticula were investigated. In patients with a high jugular fossa or jugular bulb diverticulum, tomographic assessment may be of value.

Wadin, K.; Thomander, L.; Wilbrand, H.

62

Desvios porta-jugular e cava-jugular passivos em cães: Investigação de pressões sangüíneas  

Directory of Open Access Journals (Sweden)

Full Text Available Os principais objetivos dos desvios veno-venosos durante o transplante ortotópico de fígado são: atenuação da estase venosa subdiafragmática, manutenção do retorno satisfatório de sangue ao coração e perfusão tissular eficiente. Investigações sobre PP, PVCIIH, PVC, PAM e PPR, bem como D PP e D PVCIIH foram conduzidas em seis cães, sob anestesia geral, com fígados perfundidos pela Artéria Hepática, submetidos a desvios porta-jugular e cava-jugular passivos durante 2 horas. Estes desvios não foram capazes de evitar estagnação de sangue na VP e VCIIH, acarretando estase e menor retorno sangüíneo ao coração, sugeridos por aumentos significativos de PP e PVCIIH e quedas significantes nos níveis de PVC. Os valores de PAM não apresentaram diferenças significativas em relação ao tempo T0, na maior parte dos tempos avaliados, enquanto que os valores de PPR foram significativamente menores que os verificados no tempo T0, na maioria dos tempos estudados. Tais pressões mantiveram-se, respectivamente, acima de 100 e 50 mm de Hg, atribuindo-se tais resultados, em parte, à vasoconstricção arteriolar generalizada. Incrementos de pressão na VP (D PP foram significativamente menos elevados que aqueles verificados na VCIIH (D PVCIIH, atribuindo-se tal diferença à complacência esplâncnica. Decréscimos ulteriores dos níveis de PP e PVCIIH sugerem queda do fluxo arterial para os territórios esplâncnico e sistêmico, decorrente de diminuição do retorno sangüíneo ao coração. Determinações de PP, PVCIIH, PVC, PAM e PPR podem constituir meio prático de avaliação hemodinâmica do desvio veno-venoso.

Coelho Antônio Roberto Barros

1999-01-01

63

Management of the Jugular Bulb During Lateral Skull Base Surgery  

Science.gov (United States)

The intraoperative management of a patent jugular bulb presents a formidable challenge during the treatment of lateral skull base lesions. Whether to preserve, partially occlude, or completely sacrifice this critical structure is a decision best made following a multifactorial analysis of preoperative clinicoradiographic data, tumor histopathology, and intraoperative findings. Twenty-six patients with tumors requiring dissection near a patent jugular bulb were reviewed. Ten patients had superior neck tumors, nine had primary temporal bone lesions, and seven presented with recurrent parotid malignancies. The most common clinical manifestations were headache and vocal cord paralysis and the most significant radiographic finding was the presence of a mass at the styloid base. Jugular bulb patency was preserved in six patients, partially maintained in seven, and was sacrificed in 13 individuals. This article focuses on the clinicoradiographic findings in patients with neoplastic jugular foramen encroachment, but preserved jugular blood flow. Surgical technique will be detailed through selected case presentations and the management of lower cranial nerve injuries will be reviewed. ImagesFigure 1Figure 2 PMID:17170924

Kelley, Timothy F.; Leonetti, John P.; Newell, David J.; Remington, William J.

1994-01-01

64

Desvios porta-jugular e cava-jugular passivos em cães: Investigação de pressões sangüíneas  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Os principais objetivos dos desvios veno-venosos durante o transplante ortotópico de fígado são: atenuação da estase venosa subdiafragmática, manutenção do retorno satisfatório de sangue ao coração e perfusão tissular eficiente. Investigações sobre PP, PVCIIH, PVC, PAM e PPR, bem como [...] mbol">D PP e D PVCIIH foram conduzidas em seis cães, sob anestesia geral, com fígados perfundidos pela Artéria Hepática, submetidos a desvios porta-jugular e cava-jugular passivos durante 2 horas. Estes desvios não foram capazes de evitar estagnação de sangue na VP e VCIIH, acarretando estase e menor retorno sangüíneo ao coração, sugeridos por aumentos significativos de PP e PVCIIH e quedas significantes nos níveis de PVC. Os valores de PAM não apresentaram diferenças significativas em relação ao tempo T0, na maior parte dos tempos avaliados, enquanto que os valores de PPR foram significativamente menores que os verificados no tempo T0, na maioria dos tempos estudados. Tais pressões mantiveram-se, respectivamente, acima de 100 e 50 mm de Hg, atribuindo-se tais resultados, em parte, à vasoconstricção arteriolar generalizada. Incrementos de pressão na VP (D PP) foram significativamente menos elevados que aqueles verificados na VCIIH (D PVCIIH), atribuindo-se tal diferença à complacência esplâncnica. Decréscimos ulteriores dos níveis de PP e PVCIIH sugerem queda do fluxo arterial para os territórios esplâncnico e sistêmico, decorrente de diminuição do retorno sangüíneo ao coração. Determinações de PP, PVCIIH, PVC, PAM e PPR podem constituir meio prático de avaliação hemodinâmica do desvio veno-venoso. Abstract in english The main purposes of veno-venous bypasses during orthotopic liver transplantation are: attenuation of subdiaphragmatic venous stasis, maintenance of satisfactory venous return to the heart, and efficient tissue perfusion. PVP, IHIVCP, CVP, MAP and RPP, as well as D PVP and [...] D IHIVCP were investigated in six dogs, under general anesthesia, having their livers perfused by hepatic artery, and submitted to passive porto-jugular and cava-jugular shunts during two hours. Such shunts, were not able to obviate stagnation of blood in portal and caval veins, inducing stasis and lesser venous return to the heart, as suggested by increases of PP and PVCIIH and decreases of CVP values. Levels of MAP were not significantly different from those verified at T0, in the majority of studied times, and RPP values were significantly decreased from those at T0, in almost all instances. Such pressures were respectively maintained above 100 and 50 mmHg, and were attributed in part to a widespread arteriolar vasoconstriction. Pressure increments in PV (D PVP) were significantly smaller than those verified in the IHIVC (D IHIVCP), and such difference was attributed to splancnic compliance. Further decreases in PP and IHIVCP levels suggest a lower arterial flux to splancnic and systemic territories as a consequence of reduced venous return to the heart. PVP, IHIVCP, CVP, MAP and RPP determinations may comprise a practical mean to assist hemodynamic veno-venous bypass performance.

Antônio Roberto Barros, Coelho; Álvaro Antônio B., Ferraz; Renato Dornelas, Câmara Neto; Edmundo Machado, Ferraz; Ayrton Ponce de, Souza.

1999-01-01

65

[Sudden sensorineural hearing loss and jugular bulb diverticulum].  

Science.gov (United States)

The relationship between high placed jugular bulb (diverticulum) and inner ear disorder is not well known. Three of 19 patients with sudden sensorineural hearing loss (SSHL) treated in 1995 had right side jugular bulb diverticulum revealed by CT scan and MRA. One of the 3 SSHL cases complicated with delayed endolymphatic hydrops. The exact mechanism of causation of inner ear symptom is not clear, but may partly be due to pressure effects with the jugular fossa encroaching on inner ear structure such as the cochlear aqueduct and vestibular aqueduct, and due to turbular flow in the diverticulum striking the inner ear. It is needed to further study the influence of the diverticulum on the inner ear. PMID:11263142

Lu, Y; Ren, J; Chen, Z

1998-09-01

66

LUNG MALIGNANCY PRESENTING AS BILATERAL INTERNAL JUGULAR VEIN THROMBOSIS  

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Full Text Available Venous thrombosis may be fatal, for example by a pulmonary embolism and right or left atrial thrombosis. Alternatively, deep vein thrombosis may follow a benign pattern such as femoral and popliteal vein thrombosis. Internal Jugular vein (IJV thrombosis is a rare entity. Internal jugular vein thrombosis is a serious event with potentially fatal outcome, where the clinical symptoms may be vague or absent. It is usually secondary to various etiologies such as catheter, malignancy, trauma, infection and hypercoagulable status. Associated malignancies, either known or occult, are also uncommon and not well documented in the etiology of IJV thrombosis. Spontaneous internal jugular vein thrombosis may occur in connection with a neoplasm, termed Trousseau's syndrome. Although the true incidence of IJV thrombosis is unknown it appears to be increasing

Ab. Hameed Raina

2013-09-01

67

Diagnosis of jugular paraganglioma by radionuclide angiography: concise communication  

International Nuclear Information System (INIS)

Jugular paraganglioma is a highly vascular tumor, slowly growing, extending into the surrounding stuctures and causing otologic and /or neurologic symptoms according to its location in the jugular bulb region or the middle-ear. In our study, modified vertex and posterior head scintiangiography was used in seven cases. Scintiangiography was positive in all seven, whereas concomitant radiographic studies were limited: four of the seven gave positive findings by transmission computerized tomography (TCT). Only four patients underwent angiography, with positive results in two. Hypocycloidal tomography was positive in three cases. However, some radiographic studies, particularly TCT, may be useful in detecting local extension, bone destruction, and soft-tissue infiltration. Radionuclide angiography proved highly reliable and should be used initially whenever a jugular paraganglioma is suspected

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Cholesterol granuloma coincidence with a large and high jugular bulb: report of a case.  

Science.gov (United States)

We present a case of right middle ear mass who had an abnormal large jugular foramen, high jugular bulb and large jugular vein on the same side. CT scan could not exclude a glomus tumor. Theoretically, retrograde jugular venography and carotid angiography will give the most useful information. However, in this case we tried to use the MRI scan instead. It showed high signal in T1W, T2W, GRT2W which correlated with blood pigments of methemoglobin in middle ear and mastoid. The low signal in MRI scan T1W, T2W clearly showed enlarged jugular vein, high jugular bulb with diverticulum which helped to excluding a glomus tumor. This finally turned out to be a cholesterol granuloma coincidence with abnormal enlarged jugular foramen and jugular vein. We suggest the MRI scan is very helpful and much safer for patients compared to angiography. PMID:8006563

Kasemsuwan, L; Jenjitranant, J; Clongsusuek, P

1993-05-01

69

Surgical treatment of the high jugular bulb by compressing sinus sigmoideus: two cases.  

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If the jugular bulb normally surrounded by a bony layer in jugular fossa is anatomically over the inferior surface of the bony annulus, in the middle ear or over the basal turn of cochlea, it is then named as high jugular bulb (HJB). It may be dehiscent or aberrant. It is reported to occur in 5% of the temporal bone specimens. In accordance with the literature jugular bulb compression, jugular vein ligation and embolization are suggested in such cases. In both of the presented cases, there was bleeding from jugular bulb during surgery and jugular bulb was compressed with bone wax and Surgicel, but sigmoid sinus has been compressed after failure to stop bleeding through jugular bulb compression. Venous MR angiographies showed no flow in postoperative controls. Although it is very rarely seen clinically, we present two HJB cases and different treatment perspectives accompanied by literature. PMID:18046566

Oztürkcan, Sedat; Katilmi?, Hüseyin; Ozkul, Yilmaz; Erdo?an, Nezahat; Ba?o?lu, Sinan; Tayfun, Mehmet Ali

2008-08-01

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Anomalous formation of the portal vein: a case report / Formação anômala da veia porta: relato de caso  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese O conhecimento sobre a formação e as relações da veia porta é importante para cirurgiões e radiologistas. As variações no nível de formação e o padrão de formação da veia porta podem causar confusões durante procedimentos cirúrgicos e radiológicos. Neste relato, apresentamos uma variação na formação [...] da veia porta encontrada durante as dissecções cadavéricas. A veia porta foi formada pela união da veia esplênica, veia mesentérica superior e veias mesentéricas inferiores. A terminação anormal da veia gástrica esquerda na veia mesentérica superior antes da formação da veia porta também foi observada no mesmo cadáver. A identificação dessas variações é útil para tratar a ruptura traumática do mesentério. Abstract in english The knowledge about the formation and relations of the portal vein is important for surgeons and radiologists. The variations in the level of formation and the pattern of formation of portal vein might lead to confusions during radiological and surgical procedures. Here we present a rare variation i [...] n the formation of the portal vein as found during the cadaveric dissections. The portal vein was formed by the union of splenic vein, superior mesenteric vein and inferior mesenteric veins. The abnormal termination of left gastric vein into superior mesenteric vein before the formation of portal vein was also seen in the same cadaver. Identification of these variations is useful in managing traumatic rupture of the mesentery.

Vasavi Rakesh, Gorantla; Bhagath Kumar, Potu; Thejodhar, Pulakunta; Venkata Ramana, Vollala; Pavan Kumar, Addala; Soubhagya Ranjan, Nayak.

2007-12-01

71

Relationship between tinnitus loudness level and internal jugular venous flow rate measured by coloured Doppler ultrasonography in patients with a high jugular bulb.  

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The aim of this study was to investigate the relationship between tinnitus loudness level (TLL) and internal jugular venous flow rate (IJVFR) in tinnitus patients with a unilateral high jugular bulb detected by temporal bone high-resolution computed tomography (HRCT). The study group consisted of 24 adult patients (13 male, 11 female) with a unilateral high jugular bulb. One ear suffered from tinnitus with a high jugular bulb was included into the study group. The ears without tinnitus and no high jugular bulb on temporal bone HRCT comprised the control group. All patients were evaluated with a history and physical and otolaryngologic examinations, and, using a questionnaire, TLLs were detected. The patency and flow rates in the internal jugular veins were measured by right and left internal jugular venous Doppler ultrasonography. The TLLs were "very quiet" in 1 (4.1%) patient, "intermediate loud" in 17 (70.9%) patients, and "very loud" in 6 (25.0%) patients. IJVFRs were not different in the study and control groups. In the study group, IJVFRs were not correlated with age. There was no relationship among TLLs and IJVFRs, dominance, dehiscence, and bony septum thickness between the high jugular bulb and the middle ear. TLLs were not affected by IJVFRs, dominance, dehiscence, and bony septum thickness in patients with a high jugular bulb. More detailed studies should be undertaken to determine the reason for the different TLLs in patients with a high jugular bulb. PMID:16076414

Muluk, Nuray Bayar; Kara, Simay Altan; Koç, Can

2005-04-01

72

Calcium micro-depositions in jugular truncular venous malformations revealed by Synchrotron-based XRF imaging  

OpenAIRE

It has been recently demonstrated that the internal jugular vein may exhibit abnormalities classified as truncular venous malformations (TVMs). The investigation of possible morphological and biochemical anomalies at jugular tissue level could help to better understand the link between brain venous drainage and neurodegenerative disorders, recently found associated with jugular TVMs. To this end we performed sequential X-ray Fluorescence (XRF) analyses on jugular tissue samples from two TVM p...

Pascolo, Lorella; Gianoncelli, Alessandra; Rizzardi, Clara; Tisato, Veronica; Salome?, Murielle; Calligaro, Carla; Salvi, Fabrizio; Paterson, David; Zamboni, Paolo

2014-01-01

73

Empty fenestration of the internal jugular vein: a rare phenomenon.  

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Though there are common variations of the internal jugular vein (IJV), fenestrations are extremely rare. The lateral branch of the accessory nerve classically goes through the fenestration. We report a case of an empty fenestration of the IJV that was discovered during clearance of cervical lymph nodes. Original operative and radiographic images are shown. PMID:25277644

Pegot, Alexandre; Guichard, Benjamin; Peron, Jean-Marc; Trost, Olivier

2015-01-01

74

Internal Jugular Vein Pyogenic Capillary Hemangioma: A Case Report.  

Science.gov (United States)

Internal jugular vein hemangioma, also called pyogenic granuloma, is a rare tumor. Such a neoformation was accidentally discovered and excised in a middle-aged man. Histologic and immunohistochemical investigations were performed, and this case is compared with the poor amount of similar ones described in the literature. PMID:25462549

Cera, Chiara; Calvagna, Cristiano; Sgorlon, Giada; Zamolo, Francesca; Pancrazio, Francesco; Adovasio, Roberto

2014-11-01

75

Treatment of progressive metastatic glomus jugulare tumor (paraganglioma) with gemcitabine.  

OpenAIRE

Paragangliomas are rare tumors of the paraganglia composed of specialized neural crest cells arising in association with sympathetic ganglia. Here we report a case of progressive, metastatic paraganglioma (glomus jugulare tumor) responsive to single agent gemcitabine. In addition, a brief review of chemotherapy for paraganglioma follows the case presentation.

Pipas, J. M.; Krywicki, R. F.

2000-01-01

76

Clinical application of preoperative endovascular management for jugular paraganglioma  

International Nuclear Information System (INIS)

Objective: To investigate the clinical value of preoperative angiography and embolization managements for jugular paraganglioma. Methods: Fourteen patients with jugular paraganglioma were carefully evaluated with CT, MRI and clinical ENT exams. Bilateral carotid and affected-side vertebral angiography together with embolization of the feeding arteries and tumor nidi were performed in all 14 patients before surgery. Internal carotid artery balloon occlusive test was employed to check the function of Willis' circle in 7 patients. The tumors were excised within 48 hours after embolization. Results: Preoperative angiographic and embolization procedures of jugular paraganglioma were successfully accomplished in all patients. The mean blood loss during the surgery was obviously less than usual. Of seven cases who passed the internal carotid artery balloon occlusive test,carotid artery ligation was adopted in 3. No new symptoms and signs of nervous system developed after the surgery and during the follow-up period. Conclusion: The angiography and embolization of feeding-arteries and tumor nidi, and the preoperative balloon occlusive test of carotid artery performed before the surgery of jugular paraganglioma are safe and reliable, which can be regarded as a routine preoperative preparation. (authors)

77

Isolamento das veias pulmonares para tratamento da fibrilação atrial paroxística: resultados clínicos após um único procedimento  

OpenAIRE

OBJETIVO: Avaliar a evolução clínica dos pacientes com fibrilação atrial paroxística submetidos a um único procedimento de isolamento das veias pulmonares. MÉTODOS: Estudados 49 pacientes consecutivos (36 homens; idade média de 53±10 anos) com episódios freqüentes e sintomáticos de fibrilação atrial paroxística de difícil controle clínico. Para mapeamento da junção do átrio esquerdo com as veias pulmonares, foi utilizado o cateter decapolar circular Lasso e para ablação...

Scanavacca Mauricio; Sartini Raul; Tondato Fernando; A?vila Andre?, D.; Hachul Denise; Darrieux Francisco; Lara Sissy; Sosa Eduardo

2004-01-01

78

Accuracy of continuous jugular bulb venous oximetry during intracranial surgery.  

Science.gov (United States)

We compared readings obtained from the Baxter-Edwards continuous jugular bulb venous oximetry catheter with those obtained from blood gas analysis of simultaneously drawn samples from the catheter in 12 patients undergoing neurosurgical procedures. Within the range studied (SjvO2, 42-95%), the 111 (median, nine samples per patient; range five to 17) oximetric catheter readings correlated well with hemoglobin oxygen saturation values obtained from in vitro analysis of simultaneously drawn blood samples from the catheter (y = 0.93x + 3.4, r = 0.94, p Fiberoptic light signal was suboptimal (signal quality index = 3 or 4) on fewer than five occasions per patient during an average surgical procedure duration of seven h, and these occurrences were generally corrected by flushing the catheter. We conclude that the Baxter-Edwards jugular bulb oximetric catheter provides an accurate measure of SjvO2 during neurosurgical procedures. PMID:7549368

Gunn, H C; Matta, B F; Lam, A M; Mayberg, T S

1995-07-01

79

Right atrial thrombus due to internal jugular vein catheter.  

Science.gov (United States)

Right atrial thrombus is rare complication of hemodialysis central venous catheter. Literature survey revealed 49 documentations of right atrial thrombus due to a central venous catheter. We report a 58-year-old type 2 diabetic, hypertensive, end-stage renal disease patient, who 2 months after initiation of hemodialysis through a right internal jugular vein catheter, developed clinical features suggestive of pulmonary thromboembolism. An echocardiography revealed presence of a serpentine thrombus in right atrium. The internal jugular vein catheter was removed and unfractionated heparin was initiated. At the end of 6 weeks he was symptom free. We compared conservative treatment with surgery for RAT. Conservative management with central venous catheter removal and anticoagulation therapy is not inferior to the surgery. PMID:19614782

Ram, Rapur; Swarnalatha, Gudithi; Rakesh, Yarlagadda; Jyostna, Maddury; Prasad, Neela; Dakshinamurty, Kaligotla Venkata

2009-07-01

80

Internal jugular vein thrombosis following ovarian hyperstimulation syndrome.  

Science.gov (United States)

Two cases of women who developed internal jugular vein (IJV) thrombosis associated with ovarian hyperstimulation syndrome (OHSS) are reported in this article. There are 27 cases of IJV thrombosis associated with in vitro fertilisation (IVF) reported in the literature, and in 78% of cases, this outcome was following OHSS. The hypercoagulable state of OHSS increases the risk of venous thromboembolism, and the IJV appears to have a preponderance in uncommon-site thrombosis. PMID:22309366

Fleming, Tina; Sacks, Gavin; Nasser, Justin

2012-02-01

81

A metastatic glomus jugulare tumor. A temporal bone report  

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The clinicopathologic findings in the temporal bone of a patient with a highly malignant metastasizing glomus jugulare tumor are reported. The patient exhibited all the symptoms of primary malignant tumors of the ear, including facial paralysis, otorrhea, pain, hearing loss, tinnitus, dizziness, and vertigo. He was treated with cobalt irradiation followed by radium implant in the ear canal for a residual tumor; then a left-sided radical mastoidectomy was performed.

El Fiky, F.M.; Paparella, M.M.

1984-01-01

82

Transsigmoid Approach for Tumors of the Jugular Foramen  

OpenAIRE

A transsigmoid approach is detailed for removal of tumors involving the jugular foramen. This approach was used in seven patients, eliminates the need for facial nerve transposition, and helps to preserve cochleovestibular function. The sigmoid sinus is packed and both the facial nerve and the labyrinth are identified. This approach provides excellent vision of the intradural and extradural course of the lower cranial nerves, rendering preservation of isolated nerves within the neural compart...

Mann, Wolf J.; Amedee, Ronald G.; Gilsbach, Joachim; Perneczky, Axel; Wolfensberger, Markus

1991-01-01

83

Accuracy of continuous jugular bulb venous oximetry during cardiopulmonary bypass.  

Science.gov (United States)

We evaluated the accuracy of fiberoptic catheter oximetry in the jugular bulb during conditions of normothermia, hemodilution, and hypothermia in 11 patients who underwent cardiac surgery with cardiopulmonary bypass (CPB). An oximetry catheter was inserted into the right jugular bulb under general anesthesia, calibrated by the in vitro (n = 7) or in vivo (n = 4) mode. Jugular bulb oxygen saturation (SjO2) with the catheter oximeter was compared with a concurrent laboratory CO-oximeter value from a blood sample during surgery. Nasopharyngeal temperature (NPT) and hemoglobin concentration (Hb) were also measured. The oximetric catheter SjO2 correlated closely with the CO-oximeter determinations in both calibration modes (in vitro, r2 = 0.88; in vivo; r2 = 0.96). Data in the in vitro calibrated group were grouped into three conditions; 1) normothermia and no hemodilution, 2) normothermia and hemodilution, and 3) hypothermia and hemodilution, and showed good correlations between SjO2 values measured by the two methods (r2 = 0.90, r2 = 0.81, r2 = 0.79, respectively). The difference in SjO2 values by the two methods was not significantly affected by changes in NPT and Hb during CPB. In conclusion, the continuous SjO2 monitoring with catheter oximetry during CPB would be accurate and reliable under either calibration mode. Moderate hypothermia and hemodilution during CPB did not significantly influence the accuracy. PMID:8250299

Nakajima, T; Ohsumi, H; Kuro, M

1993-12-01

84

High-resolution ultrasound evaluation of internal jugular venous valves.  

Science.gov (United States)

Although the presence of valves in the distal portion of the internal jugular veins has been widely described by anatomists and pathologists, their existence remains underscored in the medical literature. We set out to demonstrate their sonographic aspect and to evaluate their morphology, location and prevalence. Seventy-five cadavers were evaluated for the presence and aspect of such valves through neck dissections. Concurrent evaluation of the sonographic character of these structures was performed in another cohort of 75 adults. Valves of the distal portion of the internal jugular veins were found in 93 % of the cadaveric studies. Ultrasonography easily demonstrated the valve leaflets in 87 % of patients; all were observed in the distal portion of the internal jugular (IJ) veins. Sixty percent were bilateral with the majority of unilateral veins found on the right side. High-resolution ultrasonography easily demonstrates valves in the distal portion of the IJ veins which are present in the great majority of persons. Their evaluation may be of use in percutaneous procedures using this venous access. PMID:10415266

Lepori, D; Capasso, P; Fournier, D; Genton, C Y; Schnyder, P

1999-01-01

85

As diferenças entre comunicação interna e endomarketing  

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Full Text Available Atualmente, a comunicação empresarial é algo imprescindível no mundo dos negócios. Em busca de crescimento e melhores resultados, as empresas sempre investiram na comunicação destinada aos clientes, o público externo. Porém, há algum tempo, percebeu-se a necessidade de conquistar o público interno, basicamente composto por empregados e familiares, para que os bons resultados e qualidade de produtos e serviços sejam mantidos. As empresas passaram a investir em ações de comunicação interna e de endomarketing para estreitar relacionamento e motivar os empregados, com o objetivo de obter os resultados esperados. Muitos profissionais costumam, erroneamente, conceituar comunicação interna e endomarketing como sinônimos. Este artigo tem por objetivo diferenciá-los.

Carolina Girotto Ochoa

2014-01-01

86

Anatomical considerations of high jugular bulb in lateral skull base surgery.  

Science.gov (United States)

In order to study high jugular bulb management in lateral skull base surgery, an anatomical study was conducted on 30 temporal bones by examining the relationship between the internal auditory canal (IAC) and the jugular bulb. The following parameters were measured: 1) Height of the jugular bulb (H)... distance between the level of jugular bulb dome and the line passing through the confluence of the sigmoid sinus with the jugular bulb (SS-JB), 2) Mastoid length (ML)... distance between the mastoid process and middle cranial fossa dura, 3) Distance between the most inferior part of the porus acousticus and jugular bulb dome (A), 4) Distance between the porus acousticus and SS-JB (B). The jugular bulb was defined as high when it occupied more than two thirds of (B). The incidence of a high jugular bulb was 23 per cent in this study. When the jugular bulb was high, the mean (H) and (A) were 9.4 +/- 1.9 mm and 2.7 +/- 0.5 mm, respectively. (H) was higher on the right side than on the left side. No statistically significant difference was found between small and large mastoids (t-test: p > 0.05). It was concluded that when a high jugular bulb was encountered during lateral skull base surgery, the jugular bulb position allows a very small working area inferior to the IAC. In these cases, a 3 or 4 mm depression of the jugular bulb is necessary in order to expose the lower cranial nerves. This can be accomplished by lowering the jugular bulb with the technique already described. PMID:9176613

Aslan, A; Falcioni, M; Russo, A; De Donato, G; Balyan, F R; Taibah, A; Sanna, M

1997-04-01

87

The Accuracy of the New Landmark Using Respiratory Jugular Venodilation and Direct Palpation in Right Internal Jugular Vein Access  

Science.gov (United States)

Background Although ultrasonography is recommended in internal jugular vein (IJV) catheterization, the landmark-guided technique should still be considered. The central landmark using the two heads of the sternocleidomastoid muscle is widely used, but it is inaccurate for IJV access. As an alternative landmark, we investigated the accuracy of the new landmark determined by inspection of the respiratory jugular venodilation and direct IJV palpation in right IJV access by ultrasonography. Methods and Findings Thirty patients were enrolled. After induction of anesthesia, the central landmark was marked at the cricoid cartilage level (M1) and the alternative landmark determined by inspection of the respiratory jugular venodilation and direct palpation of IJV was also marked at the same level (M2). Using ultrasonography, the location of IJV was identified (M3) and the distance between M1 and M3 as well as between M2 and M3 were measured. The median (interquartile range) distance between the M2 and M3 was 3.5 (2.0–6.0) mm, compared to 17.5 (12.8–21.3) mm between M1 and M3. (P<0.001) The dispersion of distances between M2 and M3 was significantly smaller than between M1 and M3. (P<0.001) The visibility of respiratory jugular venodilation was associated with CVP more than 4 mmHg. Limitations of the present study are that the inter-observer variability was not investigated and that the visibility of the alternative landmark can be limited to right IJV in adults. Conclusion The alternative landmark may allow shorter distance for the right side IJV access than the central landmark and can offer advantages in right IJV catheterization when ultrasound device is unavailable. Trial Registration Clinical Research Informational Service KCT0000812 PMID:25050554

Seo, Hyungseok; Jang, Dong-Min; Yi, Jung-Min; Min, Hong-Gi; Hwang, Jai-Hyun

2014-01-01

88

A veia ázigos direita na cutia (Dasyprocta aguti, rodentia) / The right azygos vein in agouti (Dasyprocta aguti, rodentia)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O comportamento da veia ázigos, sua formação e topografia foram estudados em 10 cutias (Dasyprocta aguti, rodentia) adultas (6 machos e 4 fêmeas, capturadas no estado do Piauí, Brasil). Este trabalho tem por objetivo constituir a base de outras investigações, particularmente aquelas referentes à exp [...] loração zootécnica desta espécie. O sistema de veia ázigos foi injetado com látex - Neoprene 671, e os animais foram colocados em solução aquosa de formol a 10%, e dissecados. Em todas as espécies foi observado que a veia ázigos sempre chega na veia cava cranial em nível do quarto espaço intercostal. A veia ázigos recebe em (50%) dos casos as veias intercostais à direita e (50%) à esquerda. As tributárias da veia ázigos são: as veias frênicas (100%) e a veia bronco esofágica (30%). A veia hemiázigos aparece em todos os casos à esquerda e em 60% dos casos à direita. A veia ázigos comunica-se com a veia hemiázigos esquerda (90%), e com a direita (100%), com a veia cava caudal e veias intervertebrais, com igual freqüência (30%). Abstract in english The behaviour of the azygos vein, its formation and topography were studied in 10 cutias (Dasyprocta aguti, rodentia) adults (6 males and 4 females) captured in the State of Piauí, Brazil. This research intends to be a base for other investigations, particularly those with reference to zootechnical [...] exploration of this species. The azygos venous system was injected with latex (Neoprene 671), then the animals were put in watery solution of formol 10%, and dissected. In all specimens it was observed that the azygos vein always arrives in the cranial vena cava on a level with fourth intercostal space. The azygos vein receives more frequently (50%), the intercostal veins on the right side and 5 (50%) on the left one. The tributaries of the azygos vein are the phrenic veins (l00%), and the broncoesophagea vein (30%). The hemiazygos vein is in all cases on the left side and in 60% of the cases on the right side. The azygos vein communicates with the left hemiazygos vein (90%), with the right one (100%), and with the vena cava caudal and intervertebral veins, with equal frequency (30%).

Paola Franssinetti Nunes Machado, OLIVEIRA; Maria Acelina Martins, CARVALHO; Wilson Machado, SOUZA; Maria Angélica, MIGLINO.

89

Aspectos ultra-sonográficos da trombose da veia porta Ultrasonographic features of portal vein thrombosis  

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Full Text Available A trombose da veia porta pode estar associada a várias alterações, como a presença de tumores (por exemplo: hepatocarcinoma, doença metastática hepática e carcinoma do pâncreas, pancreatite, hepatite, septicemia, trauma, esplenectomia, derivações porto-cava, estados de hipercoagulabilidade (por exemplo: gravidez, em neonatos (por exemplo: onfalite e cateterização da veia umbilical e desidratação aguda. Os autores discutem, neste artigo, os aspectos ultra-sonográficos da trombose de veia porta e alguns aspectos de relevância clínica.Portal vein thrombosis may be associated with many alterations, such as the presence of tumors (for example, hepatocellular carcinoma, metastatic liver disease and carcinoma of the pancreas as well as pancreatitis, hepatitis, septicemia, trauma, splenectomy, portacaval shunts, hypercoagulable conditions (for example, pregnancy, in neonates (for example, omphalitis and umbilical vein catheterization and in acute dehydration. The authors discuss herein the sonographic features of portal vein thrombosis as well as some aspects of clinical relevance.

Márcio Martins Machado

2006-04-01

90

Anatomía quirúrgica del drenaje venoso en la región del triángulo carotídeo Surgical anatomy of jugular vein tributaries  

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Full Text Available Los principales afl uentes de la vena yugular interna se incorporan a nivel cervical por medio del tronco venoso tirolinguofacial. Clásicamente se ha descrito su formación por la unión de la vena facial, lingual y tiroidea superior. El objetivo de este estudio fue determinar las variaciones en la presentación del tronco tirolinguofacial en cadáveres humanos de la región del Maule, Chile. Se disecaron 30 hemicuellos pertenecientes a 15 cadáveres humanos de ambos sexos, con un rango de edad entre 29 y 50 años, y se analizaron mediante observación directa. Se observó la formación de tronco venoso en la totalidad de los casos, siendo 53,3% correspondiente al tronco de tipo tirolinguofacial, 23,3% linguofacial, 20% tirolingual y sólo un 3,3% el tronco tirolinguofaringofacial. No se encontró la formación del tronco venoso de tipo tirofacial. Además se encontró una correlación significativa entre el diámetro de la vena yugular interna y el tronco venoso conformado por estas venas. Por lo tanto, existen variaciones morfológicas en los patrones de conformación de las venas facial, lingual y tiroidea superior, siendo estos datos de importancia para áreas de cirugía oncológica, cirugía plástica, cirugía de cabeza y cuello y radiología.Background: The main tributaries of the internal jugular vein join at cervical level through the venous thyrolinguofacial trunk. This trunk is classically described as formed by the union of the facial, superior thyroid and lingual veins. Aim: To evaluate variations in the formation of the thyrolinguofacial trunk in human cadavers. Material and Methods: Thirty hemi-necks were dissected in human cadavers of nine men and six women, with ages ranging between 29 and 50 years, and analyzed by direct observation. Results: In 16 hemi-necks (53.3%, the trunk was thyrolinguofacial; in seven (23.3%, it was linguofacial; in six (20%, it was thyrolingual and in one case (3.3% it was thyrolinguo pharyngofacial. No thyrofacial trunk formation was found. There was a correlation between the diameter of the internal jugular vein and of the venous trunk formed by these veins. Conclusions: There are morphological changes in the formation patterns of facial, lingual and superior thyroid veins. This information is useful for surgical oncology, plastic surgery, head and neck surgery and radiology.

JOSÉ GONZÁLEZ R

2010-06-01

91

Obtenção da veia safena magna através de acesso minimamente invasivo para revascularizações miocárdicas  

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Full Text Available Objetivo: Avaliar a possibilidade de obtenção da veia safena magna através de miniincisões de pele, a sua qualidade e a ocorrência de complicações precoces da ferida operatória. Casuística e Métodos: Foram estudados 46 pacientes, admitidos entre julho e novembro de 1999. Após miniincisões longitudinais de pele a veia safena magna foi identificada e, com auxílio de afastador de lâmina longa e estreita, delicadamente dissecada. Os pacientes foram divididos em 2 grupos na dependência da presença dos fatores de risco: anemia, aterosclerose periférica, obesidade e diabete melito. As feridas operatórias foram observadas quanto às complicações maiores e menores. Amostras da veia foram enviadas para estudo histológico. Resultados: O número médio de incisões foi 2,3, com tamanho médio de 3,5 cm e de todas incisões somadas de 7,3 cm. O tamanho médio da veia foi 34,1 cm, com tempo médio de retirada de 28,7 minutos. Foram observadas complicações menores em 5 (10,8% pacientes; sendo hematoma local a mais comum (6,5%. Não foram observadas complicações maiores e a ressecção foi sempre possível. Em 2 casos houve lesão macroscópica da veia, sendo possível a sua correção e utilização. O estudo histológico demonstrou preservação da arquitetura tecidual e não evidenciou lesão endotelial significativa. Conclusões: A obtenção da veia safena magna através de miniincisões é possível e resulta em adequado enxerto venoso. A incidência de complicações da ferida é baixa e independente dos fatores de risco. Estes resultados preliminares sugerem que a técnica pode ser aplicada com segurança em pacientes submetidos à revascularização miocárdica, embora os resultados a longo prazo ainda necessitem ser determinados.

TYSZKA André Luiz

2001-01-01

92

Unusual Intracranial Parasagittal Meningioma Extending into the Internal Jugular Vein through the Sinuses  

OpenAIRE

Meningiomas frequently invade cerebral venus sinuses, especially parasagittal meningioma to superior sagittal sinus. However, most invasions do not reach internal jugular vein. We present a case of parasagittal meningioma extending into the internal jugular vein through the sinuses. Radiological investigation revealed that the tumor was invading the sagittal, transverse, sigmoid sinus and junction of the internal jugular vein to subclavian vein, which was filled with tumor. The histopathologi...

Seo, Eui-kyo; Cho, Yong-jae; Koo, Heasoo; Lim, Soo-mee

2008-01-01

93

Central venous access through the external jugular vein in children submitted to bone marrow transplantation  

OpenAIRE

Establishment of long-term central venous access is a sine qua non step for bone marrow transplantation in children. Most frequently, long-term central venous access has been obtained via blind percutaneous cannulation of subclavian and internal jugular veins or via internal jugular vein cutdown. In order to avoid some potential minor and major complications associated with the subclavian or internal jugular approaches, the authors describe an easy, simple and safe method for central venous a...

José Luiz de Godoy; Edson Keity Otta; Ricardo Atsumori Miyazaki; Marco Antonio Bitencourt; Ricardo Pasquini

2005-01-01

94

Internal Jugular/Subclavian Venous Access In Electrophysiology Study And Ablation  

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Multiple venous accesses are required for catheter placement during electrophysiology study and ablation. Internal jugular/subclavian venous access, though restricted nowadays, can be important in difficult situations.

Shomu Bohora; Jaganmohan Tharakan

2009-01-01

95

Endovascular treatment of traumatic carotid-jugular fistula: report of two cases  

International Nuclear Information System (INIS)

We report 2 patients with a traumatic carotid-jugular fistula. The first patient suffered a deep neck penetrating injury. The external carotid-jugular fistula was demonstrated by 3-dimension CT angiography (3D-CTA) and digital subtraction angiography (DSA). The patient was treated with coil embolization. The second patient suffered a gun shot injury to the neck. 3D CTA and DSA revealed a common carotid-jugular fistula and a pseudoaneurysm. The common carotid-jugular fistula was treated with coil embolization in the fistula and the pseudoaneurysm was treated with stent assisted coil embolization

96

External Jugular Vein Aneurysm with Thrombus Presenting as Painful Neck Mass: A Case Report  

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Full Text Available External jugular vein aneurysm with thrombosis presenting as neck swelling is a rare clinical entity and rarely encountered in routine clinical practice. We present a case of a 45-year-old female with external jugular vein aneurysm presenting as a painful lump in the neck. Ultrasound of the neck and CT angiography showed saccular dilation of the lower end of the external jugular vein with thrombosis within the aneurysm. Saccular aneurysm of the external jugular vein is very uncommon and can lead to thrombotic complications with serious consequence.

Roshan Kumar Verma

2013-07-01

97

[The jugular fossa--observations in a Norwegian medieval population].  

Science.gov (United States)

A high jugular bulb and fossa has been observed in cases of bleeding complications in neur-otologic surgery, conductive and sensori-neural hearing loss, tinnitus and vertigo. Comparison of 311 skulls from the Oslo mediaeval material with data from other studies showed good agreement regarding the frequency of high fossae, dehiscences, and side and sex differences. The correlation (Pearson's r) of fossa size between the two sides, with the right as the independent variable, and also the correlation between foramen size and fossa depth was less than expected from descriptions in anatomical texts based on visual observations. PMID:10228416

Ongre, A

1999-03-20

98

Transposicão da veia gástrica esquerda ou da veia mesentérica inferior como alternativas de revascularizacão portal no transplante ortotópico de fígado Transposition of the left gastric vein or the inferior mesenteric vein as alternatives to portal reconstruction in orthotopic liver transplantation  

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Full Text Available OBJETIVO: Apresentar e discutir indicações e resultados iniciais de duas alternativas técnicas para reconstrução portal em receptores de transplante hepático com veia porta trombosada ou hipoplásica. MÉTODO: São apresentados três casos de transplante hepático em portadores de veia porta imprestável para revascularização do enxerto. Constatada essa inadequação, por ausência de calibre e fluxo mínimos para uma anastomose segura com a veia porta do doador, a veia gástrica esquerda (duas vezes ou a veia mesentérica inferior do receptor foi dissecada, ligada distalmente, transposta e anastomosada com a veia porta do doador. RESULTADOS: Nos três casos, as anastomoses resultaram isodiamétricas, sem torsões ou acotovelamentos, permitindo uma revascularização do enxerto homogênea, adequada do ponto de vista macroscópico e funcional, comprovada pela evolução favorável e por fluxometria Doppler pós-operatória. CONCLUSÕES: Os autores concluem que a veia gástrica esquerda e a veia mesentérica inferior podem se constituir em boas alternativas para a reconstrução portal de receptores de transplante hepático com veia porta inadequada.BACKGROUND: Thrombosis or hypoplasia of the portal vein remains an obstacle in orthotopic liver transplantation. The authors present the technique and initial results of two alternatives to portal vein reconstruction in these cases. METHODS: Three patients who suffered end stage liver disease underwent orthotopic liver transplantation. As the portal vein was inadequate in each case, the left gastric vein (two cases or the inferior mesenteric vein was isolated, tied distally, transposed and anastomosed to the donor portal vein. RESULTS: In all three cases the reperfusion was apparently satisfactory and the postoperative course was uneventful. Doppler ultrasonography and liver function tests confirmed the sufficiency of the portal flow. CONCLUSION: The left gastric vein or the inferior mesenteric vein may be a good alternative to portal reconstruction in liver transplant.

Cláudio Moura Lacerda

2004-08-01

99

Transposicão da veia gástrica esquerda ou da veia mesentérica inferior como alternativas de revascularizacão portal no transplante ortotópico de fígado / Transposition of the left gastric vein or the inferior mesenteric vein as alternatives to portal reconstruction in orthotopic liver transplantation  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Apresentar e discutir indicações e resultados iniciais de duas alternativas técnicas para reconstrução portal em receptores de transplante hepático com veia porta trombosada ou hipoplásica. MÉTODO: São apresentados três casos de transplante hepático em portadores de veia porta imprestável [...] para revascularização do enxerto. Constatada essa inadequação, por ausência de calibre e fluxo mínimos para uma anastomose segura com a veia porta do doador, a veia gástrica esquerda (duas vezes) ou a veia mesentérica inferior do receptor foi dissecada, ligada distalmente, transposta e anastomosada com a veia porta do doador. RESULTADOS: Nos três casos, as anastomoses resultaram isodiamétricas, sem torsões ou acotovelamentos, permitindo uma revascularização do enxerto homogênea, adequada do ponto de vista macroscópico e funcional, comprovada pela evolução favorável e por fluxometria Doppler pós-operatória. CONCLUSÕES: Os autores concluem que a veia gástrica esquerda e a veia mesentérica inferior podem se constituir em boas alternativas para a reconstrução portal de receptores de transplante hepático com veia porta inadequada. Abstract in english BACKGROUND: Thrombosis or hypoplasia of the portal vein remains an obstacle in orthotopic liver transplantation. The authors present the technique and initial results of two alternatives to portal vein reconstruction in these cases. METHODS: Three patients who suffered end stage liver disease underw [...] ent orthotopic liver transplantation. As the portal vein was inadequate in each case, the left gastric vein (two cases) or the inferior mesenteric vein was isolated, tied distally, transposed and anastomosed to the donor portal vein. RESULTS: In all three cases the reperfusion was apparently satisfactory and the postoperative course was uneventful. Doppler ultrasonography and liver function tests confirmed the sufficiency of the portal flow. CONCLUSION: The left gastric vein or the inferior mesenteric vein may be a good alternative to portal reconstruction in liver transplant.

Cláudio Moura, Lacerda; Paulo Sergio Vieira de, Melo; Américo, Amorim; Olival, Lucena; Romero, Glasner; Maiena E. C., Tenório.

2004-08-01

100

Jugular bulb abnormalities in patients with Meniere's disease using high-resolution computed tomography.  

Science.gov (United States)

Temporal bone abnormalities such as hypoplasia of the vestibular aqueduct or hypopneumatization of the mastoid have been described in Meniere's disease (MD). Jugular bulb abnormalities (JBA) are one of the most common temporal bone abnormalities. The aim of this study was to evaluate the frequency of JBA in MD. Radiological data obtained by temporal bone high-resolution computed tomography of 200 ears of 167 MD patients (MD group) and 218 ears of 109 patients with normal inner ear function (control group) were analyzed retrospectively. The frequencies of high jugular bulb (HJB), jugular bulb diverticulum (JBD), inner ear adjacent jugular bulb (IAJB) and jugular bulb related inner ear dehiscence (JBID) were evaluated and compared between MD group and control group. IAJB was differentiated into vestibular aqueduct adjacent jugular bulb (VAAJB), cochlear aqueduct adjacent jugular bulb and posterior semicircular canal adjacent jugular bulb. JBID was further analyzed by differentiating into jugular bulb related vestibular aqueduct dehiscence (JBVAD), jugular bulb related cochlear aqueduct dehiscence and jugular bulb related posterior semicircular canal dehiscence. The frequencies of HJB, JBD and IAJB were higher in MD group compared to control group (21, 13.3 %, p = 0.036; 8.5, 3.7 %, p = 0.037; 13.5, 4.6 %, p = 0.001). No differences between both groups were seen in JBID (4.0, 2.3 %, p = 0.315). Most IAJB and JBID were seen in VAAJB and JBVAD. There is a higher frequency of JBA in patients with MD than in patients without inner ear symptoms. Temporal bones of MD patients might be constituted anatomically different, carrying predisposing factors for the development of clinically apparent MD. PMID:24647494

Park, Jonas J-H; Shen, Anmin; Keil, Sebastian; Kuhl, Christiane; Westhofen, Martin

2014-03-20

101

Acúfeno pulsatil por arteria carótida interna aberrante  

OpenAIRE

Presentamos un caso de acuféno pulsátil unilateral asociado a parestesias hemifaciales y faríngeas en una mujer con hipertensión e hipercolesterolemia. La exploración nasofibroscópica observó una tumoración pulsátil que correspondía a una arteria carótida interna derecha de posición anterior y medial en la TAC. Se discuten las causas de acúfeno pulsátil, destacando la importancia de las técnicas de imagen para el diagnóstico de las anomalías vasculares de cabeza y cuello..

Lo?pez-esca?mez, J. A.; Go?mez Fin?ana, M.; Sa?nchez Canet, Isabel

2000-01-01

102

Logística interna: rotas sincronizadas e parametrização SAP  

OpenAIRE

A Logística Interna está encarregue do fluxo de informação e das movimentações físicas dos materiais no armazém, fábrica e entrepostos. Atualmente a melhoria dos processos logísticos internos é um fator chave para a entrega de produtos aos clientes a um preço competitivo. O foco na eliminação das tarefas sem valor acrescentado ao produto e na redução de custos operacionais torna-se constante. Neste contexto, a sincronização de rotas de abastecimento é de e...

Torres, Diamantino Jose? Amaral E.

2012-01-01

103

Subdiaphragmatic venous stasis and tissular hypoperfusion as sources of metabolic acidosis during passive portal-jugular and caval-jugular bypasses in dogs  

OpenAIRE

Subdiafragmatic venous decompression during anhepatic stage of canine orthotopic liver transplantation attenuates portal and caval blood stasis and minimize hipoperfusion and metabolic acidosis observed with occlusion of portal and caval veins. During two hours, six dogs submitted to portal-jugular and caval-jugular passive shunts, with maintenance of arterial hepatic flow, were evaluated for pH, carbon dioxide tension (PCO2), base deficit (BD) and oxygen tension (PO2) in portal, caval and sy...

Coelho Antônio Roberto de Barros; Ferraz Álvaro Antônio Bandeira; Câmara Neto Renato Dornelas; Souza Ayrton Ponce de; Ferraz Edmundo Machado

2000-01-01

104

[Anatomical study of the superior jugular bulb by use of high-resolution computed tomography].  

Science.gov (United States)

Using high-resolution computed tomography, the relationship between the superior jugular bulb and the tympanic cavity was analysed in 40 subjects. Until now, the superior jugular bulb was thought to lie below the floor of the hypotympanum, however, the following observations were made from this study: 1) In 48 (60%) out of 80 temporal bones (40 cases), the top of the superior jugular bulb was situated in the higher level than the floor of the hypotympanum. 2) In 9 cases, the jugular bulb was separated from the tympanic cavity by only thin bony wall. This finding was noticed on the right side in 8 cases and was bilateral in a case. 3) In 21 cases (52.5%), the right jugular bulb was situated in higher level than the left, and the reverse finding was noticed only in 4 cases (10.0%). The reason why the right jugular bulb is frequently higher than the left was thought to be related to its function. Namely, the jugular bulb is useful to absorb the pulsation of the carotid artery, therefore, it was considered that the anatomical and physiological differences between the right and left carotid arteries induce the asymmetry of the jugular bulbs. PMID:2593040

Ichijo, H; Hozawa, J; Ota, S; Miyano, K

1989-11-01

105

Anatomical study of the superior jugular bulb by use of high-resolution computed tomography  

Energy Technology Data Exchange (ETDEWEB)

Using high-resolutiion computed tomography, the relationship between the superior jugular bulb and the tympanic cavity was analysed in 40 subjects. Until now, the superior jugular bulb was thought to lie below the floor of the hypotympanum, however, the following observations were made from this study: In 48 (60%) out of 80 temporal bones (40 cases), the top of the superior jugular bulb was situated in the higher level than the floor of the hypotympanum. In 9 cases, the jugular bulb was separated from the tympanic cavity by only thin bony wall. This finding was noticed on the right side in 8 cases and was bilateral in a case. In 21 cases (52.5%), the right jugular bulb was situated in higher level than the left, and the reverse finding was noticed only in 4 cases (10.0%). The reason why the right jugular bulb is frequently higher than the left was thought to be related to its function. Namely, the jugular bulb is useful to absorb the pulsation of the carotid artery, therefore, it was considerd that the anatomical and physiological differences between the right and left carotid arteries induce the asymmetry of the jugular bulbs. (author).

Ichijo, Hiroaki; Hozawa, Jiro; Ota, Syuji (Hirosaki Univ., Aomori (Japan). School of Medicine); Miyano, Kazuo

1989-11-01

106

Anatomical study of the superior jugular bulb by use of high-resolution computed tomography  

International Nuclear Information System (INIS)

Using high-resolutiion computed tomography, the relationship between the superior jugular bulb and the tympanic cavity was analysed in 40 subjects. Until now, the superior jugular bulb was thought to lie below the floor of the hypotympanum, however, the following observations were made from this study: In 48 (60%) out of 80 temporal bones (40 cases), the top of the superior jugular bulb was situated in the higher level than the floor of the hypotympanum. In 9 cases, the jugular bulb was separated from the tympanic cavity by only thin bony wall. This finding was noticed on the right side in 8 cases and was bilateral in a case. In 21 cases (52.5%), the right jugular bulb was situated in higher level than the left, and the reverse finding was noticed only in 4 cases (10.0%). The reason why the right jugular bulb is frequently higher than the left was thought to be related to its function. Namely, the jugular bulb is useful to absorb the pulsation of the carotid artery, therefore, it was considerd that the anatomical and physiological differences between the right and left carotid arteries induce the asymmetry of the jugular bulbs. (author)

107

Sistematização da veia cava caudal em búfalos (Bubalus bubalis bubalis Simpson, 1945) / Systematization of the caudal vena cava in buffalos (Bubalus bubalis bubalis Simpson, 1945)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Para o presente trabalho utilizou-se 25 animais, fetos de búfalos da Raça Murrah, com idades variando entre 5 e 9 meses, sendo 15 fêmeas e 10 machos, com vistas à dissecação e sistematização dos vasos em estudo. Os animais foram coletados em abatedouro e fixados em solução aquosa de formol 10%. Obti [...] veramse para a Veia Cava Caudal os seguintes afluentes de origem: as veias ilíacas comuns direita e esquerda, e seus afluentes colaterais; veia sacral mediana; veias frênicas; veias lombares (1-5); veias circunflexas profunda do ílio direita e esquerda; 3-4 veias hepáticas; veia genital direita (testicular ou ovárica); veias adrenais e veias renais direita e esquerda. Abstract in english Twenty-five animals, Murrah, buffaloes fetus, with 5 to 9 months of age (15 females and 10 males) was analyzed by dissection after injected with latex substance. The fetuses were collected in a slaughterhouse and fixed in aqueous formol solution 10%. In the Caudal Vena Cava the following origin trib [...] utaries were observed: the common right and left iliac veins and collateral tributaries; the median sacral vein; frenic vein; 1-5 Lumbar veins; the circumflex deep veins of the right and left ileum; 3-4 hepatic veins; right genital vein (testicular or ovarian); adrenal vein and renal right and left veins.

Adelmar Afonso de, Amorim Júnior; Maria Angélica, Miglino; Marleyne José Afonso Accioly Lins, Amorim; Tatiana Carlesso dos, Santos.

108

Hydatid cysts of the internal acoustic canal and jugular foramen.  

Science.gov (United States)

Brain involvement with hydatid disease occurs in 1-2% of all Echinococcus granulosus infections. Cerebral hydatid cysts are usually supratentorial, whereas infratentorial lesions are quite rare. Here we report a 19-year-old man with hydatid cysts in the right cerebellopontine cistern with the involvement of internal acoustic canal and jugular foramen. The patient presented with signs of increased intracranial pressure and multiple cranial nerve palsies. Surgery was performed in the semi-sitting position using a lateral suboccipital approach for a right-sided craniotomy. Magnetic resonance imaging clearly demonstrated cisternal, neural and vascular relationships which aided in intact surgical removal of the lesion using microsurgical techniques. Total removal without rupture should be the surgical goal in all hydatid cysts. PMID:17270448

Akdemir, Gökhan; Da?lio?lu, Ergün; Seçer, Mehmet; Ergüngör, Mehmet Fikret

2007-04-01

109

Jugular foramen meningiomas. Review of the major surgical series  

International Nuclear Information System (INIS)

Primary jugular foramen meningiomas are uncommon, with 96 previous cases published between 1992 and 2007. Exact location and extent of tumor were determined on the basis of radiologic and operative findings and used to develop a staging system. The mean age of patients was 39.4 years. The lesion was located on the right in 14 patients and on the left in 11 patients. The series identified 23 males and 58 females. The most common presenting clinical symptoms were hearing loss and tinnitus. Most clinical findings were middle ear mass and neck mass. Most meningiomas were World Health Organization grade I. The most common postoperative complications were lower cranial nerve paresis and facial nerve paresis. Surgical planning should consider that meningiomas usually invade the dura mater, cranial nerves, and surrounding bone. The surgeon should carefully collect detailed data about the tumor, and consult an otolaryngologist preoperatively for lower cranial nerve functions and hearing levels.(author)

110

Jugular neck dissection for NO neck supraglottic carcinoma  

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Full Text Available Appropriate management of patients with supraglottic laryngeal carcinoma and negative findings in the neck is still controversial. A prospective and retrospective study comprised 193 patients who were treated primary surgically between 1976 and 1993. They all had clinically and ultrasound negative findings on the neck (NO. Supraglottic carcinomas usually spread regionally. Metastases develop in the jugular group, between level II-IV. The incidence of metastases has been reported to vary from 12 to 62.5%. The size and localization of the primary tumor, its histological grade, genotype of the malignant cells, imunological and other elucidated factors can all affect the incidence of regional spread. AIM Aim of this study was to specify the incidence of occult cervical metastases; to analyze the distribution of occult metastases related to tumor localization; to specify the distribution of occult metastases related to local spread; to analyze the distribution of occult metastases according to localization in the neck. RESULTS All patients had primary surgery of primary tumor and bilateral jugular, selective neck dissection at the level II-IV with histological examination of removed lymphoid tissue. Out of 193 patients, metastatic deposits were detected in 35(18%. Occult metastases were found in patients with carcinoma of the epilarynx in 19% (14/72 of cases, and in 17% (21/121 patients with carcinoma of the supraglottis excluding the epilarynx. This difference in frequency is not statistically significant. The incidence of occult metastases in epilaryngeal tumors did not depend on the degree of local spread. Even relatively small tumors (T1 and T2 yielded occult metastases in 33% (5/15, and 24% (6/25 of patients, respectively. In patients with T1 tumors localized at the supraglottis, excluding the epilarinx, occult metastases were not found. In the supragiottis excluding the epilarynx increased local spread was associated an increase of occult metastases. The incidence of occult metastases was directly related to the degree of the local spread of the tumor in the supraglottis excluding the epilarynx (Table 1. Occult metastases were usually ipsilateral, like the palpable ones. In medially localized tumors bilateral netastases were possible. Ipsilateral metastases were more frequent than both bilateral and contralateral ones. The possibility of contraiateral and bilateral occult metastases necessitated bilateral neck dissection. Postoperative radiotherapy (60 Gy was given to all patients with verified occult metastases. Only in two patients (1% of the total did metastases develop subsequently, indicating the effectiveness of planned postoperatrive radiotherapy. DISCUSSION Controversies in application of jugular, selective neck dissection are presently since it has been in use, because of the unclear role wich regional lymph tissue play in antitumor immune response. Jugular, selective neck dissection was advocated in all patients with a primary supraglottic laryngeal carcinomas. It was suggested that selective neck dissection was needed only in advanced (T3 and T4 tumors. Selective dissection is believed to be needed only when tumor has spread into the vallecula, the base of the tongue, or the medial wall of the piriform sinus. The idea of selective neck dissection has been opposed since the protective role of the cervical lymph tissue has been stressed. Ultrasound and computerized tomography of the neck cannot detect occult metastases. Today, only removal and histological examination of the lymph tissue can determine occult metastasis. The importance of selective neck dissection is considered in diagnostic biopsy procedure by wich occult metastatic spread in the neck region is established. CONCLUSION Due to the tendency of supraglottic carcinoma resulting in occult cervical metastases, early detection is imperative in order to apply the appropriate therapy. Occult cervical metastases are usually ipsilateral, but bilateral and contralateral may be found as well. Due to the aforementioned, it is necessary to

Petrovi? Željko

2004-01-01

111

Jugular pacing lead extraction with laser sheath: a case report.  

Science.gov (United States)

Over the past 20 years, the number of patients with pacemakers (PM) or implantable cardioverter defibrillators has risen markedly; consequently, an increasing number of lead-removal procedures have become necessary. A 64-year-old woman presenting with an infected device pocket and positive bacterial cultures (Staphylococcus aureus) was admitted to our department for lead removal; in 1991, she underwent VVI PM implantation for atrioventricular II degree Mobitz 1 block, and a unipolar lead was introduced via the left jugular vein. The procedure was performed in our Electrophysiology Lab with a cardiac surgeon on standby, using an excimer laser system emitting the energy at the tip of a flexible, fibre-optic 12 F sheath, developed by Spectranetics, Inc., Colorado Springs, CO, USA. PMID:20047926

Curnis, Antonio; Coppola, Giuseppe; Racheli, Marco; Cerini, Manuel; Pagnoni, Carlo; Lipari, Alessandro; Berlinghieri, Nicola; Metwally, Mohamed A; Bontempi, Luca; Dei Cas, Livio

2010-03-01

112

Implante intencional de filtros de veia cava em ambas as veias ilíacas comuns: relato de caso e revisão da literatura / Intentional placement of vena cava filters in both iliac veins: case report and literature review  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Os filtros de veia cava são utilizados para impedir a passagem de êmbolos dos membros inferiores para as artérias pulmonares e, normalmente, são colocadas imediatamente abaixo das veias renais. Em alguns casos, no entanto, existem dificuldades técnicas incomuns que devem ser superadas para tratar ad [...] equadamente alguns pacientes. Relatamos o caso de uma paciente em cujas veias ilíacas comuns foram implantados filtros de veia cava devido à baixa implantação das veias renais e da veia cava inferior curta. Abstract in english Vena cava filters are used to prevent the passage of emboli from the lower limbs to the pulmonary arteries and normally are placed immediately below the renal veins. In some cases however there are unusual technical difficulties that must be overcome to properly treat some patients. We report a case [...] of a patient in whose common iliac veins vena cava filters were deployed, due to the lower implantation of renal veins and a short inferior vena cava.

Daniel Queiroz, Neves; Renvik Demauir Cozine, Silva; Luis Claudio Rosa, Arantes; Márcio Cerbazzi Tavares, Cardoso; Mauro Henrique de, Lima; Gustavo Petorossi, Solano; Celso Luis Muhlethaler, Chouin; Paulo Eduardo Ocke, Reis.

2010-12-01

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Veias do sistema porta-hepático em gansos domésticos Veins from hepatic portal vein system in domestic geese  

OpenAIRE

A distribuição intraparenquimal das veias porta-hepáticas foi estudada em 30 gansos domésticos. Latex Neoprene corado foi injetado pela veia isquiática e os animais forma fixados por imersão e injeção intramuscular com formol a 10% e dissecados. O fígado esteve composto por um grande lobo hepático direito e por um lobo hepático esquerdo menor, os quais estiveram conectados por uma ponte de parênquima. O lobo direito do fígado teve exclusivamente vasos do sistema porta-hepático f...

Santos, Tatiana C.; Borba, Carla C. F.; Anita Menconi; Maia, Marina O.; Bombonatto, Pedro P.; Pereira, Cheston C. H.

2009-01-01

114

Adequate irradiation of the internal jugular lymph node chain: technical considerations  

International Nuclear Information System (INIS)

Purpose: This research aimed to study the anatomic relationship between the internal jugular vein with the surrounding internal jugular lymph node chain and the underlying bony anatomical structures which are commonly used as landmarks for radiation therapy planning. Methods and Materials: Twelve patients with carcinoma of the head and neck region were studied prospectively. Using our three-dimensional planning system, a beam's-eye view of the internal jugular vein was projected onto a lateral and anterior simulation film. Quantitative measurements were made in every case of the anatomic relationship between the internal jugular vein and the posterior border of the cervical vertebrae and sagittal midline. Results: The distance between the posterior border of the internal jugular vein and the posterior border of the cervical vertebrae ranged between 0 and 2.5 cm. The distances between the sagittal midline and the medial border of the internal jugular veins ranged between 2 and 4 cm. Conclusion: To ensure adequate irradiation of the internal jugular lymph nodes, the posterior border of the lateral radiation therapy upper-neck fields should be placed at least 1 cm posterior to the posterior aspect of the cervical vertebrae. The midline block used in the lower neck anterior field should not exceed 2 cm in width

115

Surgical management of high jugular bulb in acoustic neurinoma via retrosigmoid approach.  

Science.gov (United States)

Of 200 patients with acoustic neurinoma undergoing an operation via the retrosigmoid transmeatal approach in the semisitting position, 18 patients had a high jugular bulb on the tumor side. The frequency was 9%. From a neurosurgical point of view, a jugular fossa above the low border of the internal auditory canal (IAC) is classified as a high one. All 200 patients were evaluated by computed tomography with bone window reconstruction of high-resolution thin axial slices (1.5 mm). High jugular bulbs were classified into three grades as follows: Grade I, jugular bulb situated less than 1.5 mm above the low border of IAC; Grade II, jugular bulb between 1.5 and 3.0 mm above the low border of the IAC; Grade III, jugular bulb > 3 mm above the low border of IAC. There were eight patients with Grade I, six patients with Grade II, and four patients with Grade III. In these patients, in order to open the IAC without concomitant injury of the jugular bulb, the superior posterior portion of the porus was drilled away. Opening the jugular fossa was unavoidable in Grade III cases. No difference was noted in functional preservation of facial or cochlear nerve between HJB cases and normal jugular bulb cases, but HJB cases had a higher frequency of air embolism during tumor removal than did normal cases (16 versus 5%), especially Grade III cases (two of four). There was no mortality or morbidity in the cases of air embolism. Details of the surgical procedure in such cases are discussed. PMID:8421554

Shao, K N; Tatagiba, M; Samii, M

1993-01-01

116

Hyperostosis frontalis interna: a Nubian case.  

Science.gov (United States)

The aim of this article is to present evidence of hyperostosis frontalis interna in a 40-year-old female recovered from a Meroitic cemetery (ca. 300 A.D.) in Sudanese Nubia. A review of the literature concerning the Morgagni-Stewart-Morel (MSM) syndrome suggests that the changes in the skull fragment are consistent with this diagnosis. This case is the earliest example of the condition so far reported, and therefore, in archaeological time and space, this is a disease not only of modern civilization, but also of antiquity. Current endocrinological reports suggest that the hyperostosis is the hallmark of a generalized disorder of bone metabolism, with increased androgens, prolactin, and somatotropins. Hyperostosis frontalis interna is the central feature of a syndrome first described over 200 years ago by the early pathologist Giovanni Batistta Morgagni, professor of anatomy at Padua (1719). He found thickening of the internal tables of the frontal bones in association with virilism and obesity. Stewart (1928) and Morel (1929) independently added several neuropsychiatric problems to this complex and questioned the possibility of an endocrine basis for the syndrome. PMID:3044135

Armelagos, G J; Chrisman, O D

1988-05-01

117

[Exposed superior bulb of the internal jugular vein. Differential hearing loss diagnosis with pulse synchronous tinnitus].  

Science.gov (United States)

A case report is presented of a 54-year-old woman with tinnitus synchronous with her pulse and an ipsilateral conductive hearing loss. Otoscopy showed a pulsatile structure behind the right eardrum. Imaging with high-resolution computed tomography of the temporal bone showed an enlarged jugular vein bulb. Magnetic resonance imaging could not be performed because of an implanted pacemaker. Since a glomus jugulare tumor could not be excluded right diagnostic tympanoscopy was performed and revealed a high jugular bulb that filled nearly a third of the tympanum. PMID:9864680

Tisch, M; Maier, H

1998-11-01

118

Comportamento anatômico da veia hepática esquerda de fetos de búfalos (Bubalus bubalis ? Linnaeus, 1758.  

Directory of Open Access Journals (Sweden)

Full Text Available RESUMO: Foram estudados em 31 fígados de fetos de búfalos (Bubalus bubalis sem especificidade de raça, o comportamento da veia hepática esquerda e seus respectivos setores de drenagem, sendo o material injetado com látex corado em azul, fixado em formol a 20% e em seguida dissecado pela face visceral do fígado. Nessas peças foi observado que a veia hepática esquerda muito calibrosa e responsável por amplo território, drena os diferentes setores do lobo esquerdo e o setor supraportal do lobo caudado e, eventualmente também, parte do lobo quadrado, desembocando, em todos os casos, diretamente na veia cava caudal. PALAVRAS CHAVE: Anatomia de Búfalos; Fígado; Circulação Venosa SUMMARY: Here have been studied in 31 livers of buffalo fetuses (Bubalus bubalis, without specified breed, the behaviour of the left hepatic vein and respective draining sectors. This material was injected with coloured latex, fixed in 20% formaldehyde and dissected. It was observed that the left hepatic vein, greatly calibrous, responsible for a wide region, drains distinct sectors of left lobe, supraportalis sector of lobus caudatus and eventually it also drains part of lobus quadratus (41.93% and goes, in all cases, directly into vena cava caudalis. KEYWORDS: Anatomy of Buffalo; Liver; Circulation Venosa

A. E. F. S. Almeida

2005-03-01

119

Aneurisma da veia femoral simulando uma hérnia inguinal / Femoral vein aneurysm simulating an inguinal hernia  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese INTRODUÇÃO: Somente seis casos de aneurismas da veia femoral simulando hérnia inguinal foram descritos na literatura. RELATO DO CASO: Um caso de aneurisma da veia femoral comum direita que simulava uma hérnia inguinal é descrito em jovem de 19 anos de idade com uma massa dolorosa de consistência mol [...] e na região inguinal direita de seis meses de duração. Durante a consulta médica, o paciente morreu durante em episódio de convulsão generalizada. Na necropsia, tromboembolismo pulmonar maciço e um aneurisma da veia femoral comum de 8x8x7 cm com trombos foram diagnosticados. Abstract in english BACKGROUND: Only six cases of femoral vein aneurysm are related on medical literature. CASE REPORT: A case of a right common femoral vein aneurysm simulating an inguinal hernia in a 19 year-old male. He had a soft and painful mass in the right inguinal area of six months of duration. At medical cons [...] ultation, the patient died during a generalized convulsive episode. At necropsy, massive pulmonary thromboembolism and an 8x8x7 cm common femoral vein aneurysm with thrombus were recognized.

Victor Assad, Buffara-Jr; Júlio Cezar. Uili, Coelho; Mateus Martinelli de, Oliveira.

2009-12-01

120

Internal Jugular/Subclavian Venous Access In Electrophysiology Study And Ablation  

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Full Text Available Multiple venous accesses are required for catheter placement during electrophysiology study and ablation. Internal jugular/subclavian venous access, though restricted nowadays, can be important in difficult situations.

Shomu Bohora

2009-07-01

121

Internal jugular phlebectasia as an incidental finding in cervical spine surgery  

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Full Text Available Idiopathic internal jugular phlebectasia, occurs either unilaterally or bilaterally affecting the internal jugular vein is a rare congenital variation often diagnosed during childhood. It usually presents with a benign swelling over the lateral side of neck on the affected side, seen on exertion. A-30-year old male was operated for anterior cervical dissectomy from right lateral approach and was diagnosed per-operatively as internal jugular phlebectasia.The surgery was abandoned at this stage on the advice of cardiothoracic surgeon to investigate the patient for the secondary etiological factors for internal jugular vein dilatation. The patient was reassured without any active intervention for the phlebectasia and cervical dissectomy was performed in the second surgery through the lateral approach from left side. This case is presented in view of rarity and suggested that during preoperative workup the nearby structures like carotid sheath should be evaluated by magnetic resonance imaging to avoid such per-operative surprises.

Thulasiraman V

2010-01-01

122

La auditoría de comunicación interna: Una aproximación conceptual y metodológica  

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Full Text Available ©En los últimos años, el papel estratégico de la comunicación interna y la satisfacción de las necesidades del público interno de las empresas han cobrado un merecido reconocimiento. En un breve periodo de tiempo han surgido en el seno de las organizaciones, unidades de comunicación interna responsables del diseño y ejecución de los programas de marketing Interno. Una vez satisfecha la necesidad de comunicación en el seno de la empresa, se plantea la necesidad de analizar y evaluar la gestión de la comunicación y las herramientas utilizadas como mejor camino de validar su funcionalidad y justificar su eficacia y rentabilidad. La auditoría de comunicación interna es el procedimiento metodológico que permite de una forma dinámica diagnosticar el sistema de comunicación y evaluar su gestión. Son dos funciones que fundamentan tanto la formulación de las políticas de comunicación interna en la empresa y la elaboración de los planes de comunicación interna, como las correcciones y modificaciones oportunas.

Lic. Josefa García Mestanza

1999-01-01

123

Jugular versus subclavian totally implantable access ports: Catheter position, complications and intrainterventional pain perception  

Energy Technology Data Exchange (ETDEWEB)

Purpose: To determine the safest and most tolerable method for totally implantable access ports (TIAPs) particularly in regard to patient's pain perception and catheter-related complications. Materials and methods: From January 2007 to October 2008 a subcutaneous TIAP (Bardport, Bard Access System, UT, USA) was implanted in 138 oncological patients (60 male, 78 female; 18-85 years old; mean age of 56 {+-} 6 years) by experienced interventional radiologists. 94 TIAP were implanted through the subclavian vein (subclavian group) and 44 TIAP were implanted through the internal jugular vein (jugular group). Intrainterventional pain perception (visual analogue scale from 1 to 10), postinterventional catheter tip migration and radiation dose were documented for each method and implantation side and differences were compared with Wilcoxon t-test. For ordinal variables, comparison of two groups was performed with the Fisher's exact test. Results: No severe periinterventional complication occurred. Inadvertent arterial punctures without serious consequences were reported in one case for the jugular group versus four cases in the subclavian group. Significantly (p < 0.05) lower pain perception, radiation dose and tip migration rate were observed in the jugular group. Catheter occlusions occurred in 4% (n = 4) of the subclavian group versus 2% (n = 1) of the jugular group. The corresponding values for vein thrombosis and catheter dislocation were 3% (n = 3) and 1% (n = 1) in the subclavian group, while none of those complications occurred in the jugular group. Conclusion: Both techniques, the TIAP implantation via fluoroscopy-guided subclavian vein puncture and via ultrasound-guided jugular vein puncture, are feasible and safe. Regarding intrainterventional pain perception, radiation dose, postinterventional catheter tip position and port function the jugular vein puncture under ultrasound guidance seems to be advantageous.

Plumhans, Cedric, E-mail: plumhans@rad.rwth-aachen.de [Department of Diagnostic Radiology, University Hospital, RWTH-Aachen University, Pauwelsstrasse 30, D-52074 Aachen (Germany); Mahnken, Andreas H. [Department of Diagnostic Radiology, University Hospital, RWTH-Aachen University, Pauwelsstrasse 30, D-52074 Aachen (Germany); Applied Medical Engineering, Helmholtz Institute, RWTH-Aachen University (Germany); Ocklenburg, Christina [Institute of Medical Statistics, University Hospital, RWTH-Aachen University (Germany); Keil, Sebastian; Behrendt, Florian F.; Guenther, Rolf W.; Schoth, Felix [Department of Diagnostic Radiology, University Hospital, RWTH-Aachen University, Pauwelsstrasse 30, D-52074 Aachen (Germany)

2011-09-15

124

Jugular versus subclavian totally implantable access ports: Catheter position, complications and intrainterventional pain perception  

International Nuclear Information System (INIS)

Purpose: To determine the safest and most tolerable method for totally implantable access ports (TIAPs) particularly in regard to patient's pain perception and catheter-related complications. Materials and methods: From January 2007 to October 2008 a subcutaneous TIAP (Bardport, Bard Access System, UT, USA) was implanted in 138 oncological patients (60 male, 78 female; 18-85 years old; mean age of 56 ± 6 years) by experienced interventional radiologists. 94 TIAP were implanted through the subclavian vein (subclavian group) and 44 TIAP were implanted through the internal jugular vein (jugular group). Intrainterventional pain perception (visual analogue scale from 1 to 10), postinterventional catheter tip migration and radiation dose were documented for each method and implantation side and differences were compared with Wilcoxon t-test. For ordinal variables, comparison of two groups was performed with the Fisher's exact test. Results: No severe periinterventional complication occurred. Inadvertent arterial punctures without serious consequences were reported in one case for the jugular group versus four cases in the subclavian group. Significantly (p < 0.05) lower pain perception, radiation dose and tip migration rate were observed in the jugular group. Catheter occlusions occurred in 4% (n = 4) of the subclavian group versus 2% (n = 1) of the jugular group. The corresponding values for vein thrombosis and catheter dislocation were 3% (n = 3) and 1% (n = 1) in the su were 3% (n = 3) and 1% (n = 1) in the subclavian group, while none of those complications occurred in the jugular group. Conclusion: Both techniques, the TIAP implantation via fluoroscopy-guided subclavian vein puncture and via ultrasound-guided jugular vein puncture, are feasible and safe. Regarding intrainterventional pain perception, radiation dose, postinterventional catheter tip position and port function the jugular vein puncture under ultrasound guidance seems to be advantageous.

125

Subdiaphragmatic venous stasis and tissular hypoperfusion as sources of metabolic acidosis during passive portal-jugular and caval-jugular bypasses in dogs Estase venosa subdiafragmática e hipoperfusão tissular como fontes de acidose metabólica durante desvios porta-jugular e cava-jugular passivos em cães  

OpenAIRE

Subdiafragmatic venous decompression during anhepatic stage of canine orthotopic liver transplantation attenuates portal and caval blood stasis and minimize hipoperfusion and metabolic acidosis observed with occlusion of portal and caval veins. During two hours, six dogs submitted to portal-jugular and caval-jugular passive shunts, with maintenance of arterial hepatic flow, were evaluated for pH, carbon dioxide tension (PCO2), base deficit (BD) and oxygen tension (PO2) in portal, caval and sy...

Antônio Roberto de Barros Coelho; Álvaro Antônio Bandeira Ferraz; Renato Dornelas Câmara Neto; Ayrton Ponce de Souza; Edmundo Machado Ferraz

2000-01-01

126

Sex differences in DHEA and estradiol during development in a wild songbird: Jugular versus brachial plasma.  

Science.gov (United States)

Sexual differentiation of the brain has traditionally been thought to be driven by gonadal hormones, particularly testosterone (T). Recent studies in songbirds and other species have indicated that non-gonadal sex steroids may also be important. For example, dehydroepiandrosterone (DHEA)--a sex steroid precursor that can be synthesized in the adrenal glands and/or brain--can be converted into active sex steroids, such as 17beta-estradiol (E(2)), within the brain. Here, we examine plasma DHEA and E(2) levels in wild developing European starlings (Sturnus vulgaris), from hatch (P0) to fledging (P20). Blood samples were collected from either the brachial vein (n=143) or the jugular vein (n=129). In songbirds, jugular plasma is enriched with neurally-synthesized steroids and, therefore, jugular plasma is an indirect measure of the neural steroidal milieu. Interestingly, brachial DHEA levels were higher in males than females at P4. In contrast, jugular DHEA levels were higher in females than males at P0 and P10. Brachial E(2) levels were higher in males than females at P6. Surprisingly, jugular E(2) levels were not high and showed no sex differences. Also, we calculated the difference between brachial and jugular steroid levels. At several ages, jugular steroid levels were lower than brachial levels, particularly in males, suggesting greater neural metabolism of circulating DHEA and E(2) in males than females. At a few ages, jugular steroid levels were higher than brachial levels, suggesting neural secretion of DHEA or E(2) into the general circulation. Taken together, these data suggest that DHEA may play a role in brain sexual differentiation in songbirds. PMID:18423637

Chin, Eunice H; Shah, Amit H; Schmidt, Kim L; Sheldon, Lani D; Love, Oliver P; Soma, Kiran K

2008-06-01

127

A case of huge neurofibroma expanding extra- and intracranially through the enlarged jugular foramen  

International Nuclear Information System (INIS)

The surgical approach to the jugular foramen has been considered to be very difficult and troublesome, because of the location in which important structures, such as the internal jugular vein, internal carotid artery and lower cranial nerves, converge in the narrow deep space. A case of huge neurofibroma, which extended from the tentorium cerebelli through the dilated jugular foramen to the level of the vertebral body of C3 was presented. A 12-year-old girl was admitted with complaints of visual disturbance and palsy of the V-XII cranial nerves of the left side. Plain skull film showed prominent widening of the cranial sutures and enlargement of the sella turcica. Horizontal CT scan with contrast showed symmetrical ventricular dilatation and a heterogeneously enhanced mass, which was situated mainly in the left CP angle. Coronal CT scan with contrast revealed a huge mass and enlarged jugular foramen, through which the tumor extended to the level of the vertebral body of C3. Occlusion of the sigmoid sinus and the internal jugular vein of the left side was noticed in the vertebral angiography. Two-stage approach, the first one for removal of the intracranial tumor and the second one for extracranial tumor, was performed for its huge tumor. Several authors have reported excellent surgical approaches for the tumors situated in the jugular foramen. By our approach, modifying Gardner's original one, a wide operative field was obtained to remove the tumative field was obtained to remove the tumor around the jugular foramen with success. Our approach for the jugular foramen was described with illustrations. (author)

128

Successful removal of a jugular implantable defibrillator lead with mechanical single-sheath technique.  

Science.gov (United States)

We describe the case of a man with an implantable defibrillator and a dual-coil lead introduced via the right internal jugular vein. Due to pocket infection and lead erosion at the jugular vein, transvenous lead extraction was attempted with a mechanical single-sheath technique. The lead was completely removed without complications with culture and sensitivity results guiding an effective antibiotic therapy. PMID:21535032

Calvagna, Giuseppe M; Evola, Rosario; Scardace, Giuseppe; Valsecchi, Sergio

2012-09-01

129

Fatores de risco que afetam as complicações da dissecação da veia safena na revascularização cirúrgica do miocárdio / The risk factors affecting the complications of saphenous vein graft harvesting in aortocoronary bypass surgery  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: O problema da cicatrização de feridas é comumente observado após procedimentos de revascularização do miocárdio. Nosso objetivo é determinar a prevalência e os indicadores de complicação na dissecação da veia safena após procedimentos de revascularização coronária. MÉTODOS: Após revisão e [...] aprovação pelo comitê de ética da instituição, uma revisão retrospectiva de 4029 procedimentos de revascularização foi realizada com enxerto da veia safena durante um período de seis anos. Treze fatores de risco para aqueles que desenvolveram complicações extensas nas feridas da perna foram analisados e comparados com toda a coorte de pacientes submetidos a procedimentos de revascularização semelhantes durante o mesmo período. RESULTADOS: Complicações nas feridas do membro inferior ocorreram em 68 pacientes (1,7%), 43 deles precisaram de intervenção cirúrgica adicional. Foram realizados 17 desbridamentos de feridas, nove transplantes de pele, uma angioplastia, 11 fasciotomias, três procedimentos vasculares e duas transferências livre de tecidos. Das treze variáveis analisadas pela análise multivariada, sexo feminino, IMC, uso de enxerto de veia torácica interna, doença vascular periférica, o uso de balão intra-aórtico no pós-operatório e hiperlipidemia pré-existente foram identificados como indicadores independentes significativos de complicações extensas nas feridas a perna (p Abstract in english OBJECTIVE: Problem of wound healing is commonly observed after coronary artery bypass graft procedures. Our aim is to determine the prevalence and the predictors of saphenous vein harvesting complication after coronary revascularization procedures. METHODS: After institutional ethical committee revi [...] ew and approval, a retrospective review was undertaken of 4029 bypass procedures with saphenous vein graft performed over a period of six years is conducted. Thirteen risk factors for those who developed major leg wound complications were analyzed and compared with the entire cohort of patients, undergoing similar bypass procedures during the same period. RESULTS: Lower extremity wound complications occurred in 68 patients (1.7%), 43 of them required additional surgical interventions. There were 17 wound debridements, nine skin grafts, one angioplasty, 11 fasciotomies, three vascular procedures, and two free tissue transfers. Of 13 variables evaluated by multivariate analysis, female gender, BMI, use of internal thoracic artery graft, peripheral vascular disease, the use of postoperative intraaortic balloon pump and preexisting hyperlipidemia were identified as significant independent predictors of major leg wound complications (p

Monir, Abbaszadeh; MK, Arabnia; A, Rabbani; MH, Mandegar; S, Vahedi.

2008-09-01

130

Fatores de risco que afetam as complicações da dissecação da veia safena na revascularização cirúrgica do miocárdio The risk factors affecting the complications of saphenous vein graft harvesting in aortocoronary bypass surgery  

Directory of Open Access Journals (Sweden)

Full Text Available OBJETIVO: O problema da cicatrização de feridas é comumente observado após procedimentos de revascularização do miocárdio. Nosso objetivo é determinar a prevalência e os indicadores de complicação na dissecação da veia safena após procedimentos de revascularização coronária. MÉTODOS: Após revisão e aprovação pelo comitê de ética da instituição, uma revisão retrospectiva de 4029 procedimentos de revascularização foi realizada com enxerto da veia safena durante um período de seis anos. Treze fatores de risco para aqueles que desenvolveram complicações extensas nas feridas da perna foram analisados e comparados com toda a coorte de pacientes submetidos a procedimentos de revascularização semelhantes durante o mesmo período. RESULTADOS: Complicações nas feridas do membro inferior ocorreram em 68 pacientes (1,7%, 43 deles precisaram de intervenção cirúrgica adicional. Foram realizados 17 desbridamentos de feridas, nove transplantes de pele, uma angioplastia, 11 fasciotomias, três procedimentos vasculares e duas transferências livre de tecidos. Das treze variáveis analisadas pela análise multivariada, sexo feminino, IMC, uso de enxerto de veia torácica interna, doença vascular periférica, o uso de balão intra-aórtico no pós-operatório e hiperlipidemia pré-existente foram identificados como indicadores independentes significativos de complicações extensas nas feridas a perna (pOBJECTIVE: Problem of wound healing is commonly observed after coronary artery bypass graft procedures. Our aim is to determine the prevalence and the predictors of saphenous vein harvesting complication after coronary revascularization procedures. METHODS: After institutional ethical committee review and approval, a retrospective review was undertaken of 4029 bypass procedures with saphenous vein graft performed over a period of six years is conducted. Thirteen risk factors for those who developed major leg wound complications were analyzed and compared with the entire cohort of patients, undergoing similar bypass procedures during the same period. RESULTS: Lower extremity wound complications occurred in 68 patients (1.7%, 43 of them required additional surgical interventions. There were 17 wound debridements, nine skin grafts, one angioplasty, 11 fasciotomies, three vascular procedures, and two free tissue transfers. Of 13 variables evaluated by multivariate analysis, female gender, BMI, use of internal thoracic artery graft, peripheral vascular disease, the use of postoperative intraaortic balloon pump and preexisting hyperlipidemia were identified as significant independent predictors of major leg wound complications (p<0.05. CONCLUSIONS: The causes of major leg wound complications after saphenous vein harvest for coronary artery bypass graft procedures are multifactorial. To minimize these complications, we recommend vascular evaluations before saphenous vein harvest, attention to proper surgical technique, and careful harvest site section.

Monir Abbaszadeh

2008-09-01

131

The high jugular bulb: report of five cases and a review of the literature.  

Science.gov (United States)

The jugular bulb varies widely in position and dimensions. A high jugular bulb is not an uncommon finding in temporal bones. Besides our five cases with different clinical manifestations, we review 52 cases diagnosed clinically and published previously in the English literature. The high jugular bulb occurs more often on the right temporal bone. Certain pathologic conditions, such as an abnormal bone formation, an aberrant sinusojugular system, or decreased pneumatization of the mastoid bone, may predispose an individual to its occurrence. Most people with this anatomical variation remain asymptomatic. However, various otologic problems and symptoms may be attributed to this condition. A high resolution computed tomography scan is the most convenient diagnostic tool at present. Law projection plain mastoid radiography may reveal a high jugular bulb in certain cases, providing a preoperative warning to an otologic surgeon. An exploratory tympanotomy is not suggested for those with a high jugular bulb with a conductive hearing loss, while jugular vein ligation has been reported to have good results in alleviating intractable pulsatile tinnitus. For most asymptomatic patients, regular long-term follow-up is recommended. PMID:7904851

Lin, D J; Hsu, C J; Lin, K N

1993-08-01

132

Comparação da perviedade entre artéria radial e veia safena em pacientes em pós-operatório de cirurgia de revascularização miocárdica com retorno dos sintomas / Comparison of patency between radial artery and saphenous vein in a coronary artery bypass grafting post operative with return of the symptoms  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Comparar a perviedade da artéria radial e veia safena em pacientes com retorno dos sintomas após cirurgia de revascularização do miocárdio (CRVM). MÉTODOS: Estudo retrospectivo. No período de janeiro de 1998 a dezembro de 2005, foram realizadas 469 CRVMs com o uso da artéria radial dentre [...] os enxertos, no Hospital Vera Cruz, em Belo Horizonte/MG. Destes, 94 pacientes apresentaram alterações isquêmicas no pós-operatório recente ou tardio e foram reestudados com cineangiocoronariografia. Os enxertos foram divididos em três grupos: artéria torácica interna (ATI), artéria radial (AR) e veia safena (VS), e foram estratificados segundo a gravidade das lesões: sem lesão grave ( Abstract in english OBJECTIVE: To compare the radial artery and saphenous vein's patency in patients with recurrence of symptoms in a coronary artery bypass grafting (CABG). METHODS: Retrospective study. From January 1998 to December 2005, 469 CABGs were performed using the radial artery as a graft, in Vera Cruz Hospit [...] al in Belo Horizonte/ MG. Among the patients who underwent those surgeries, 94 presented ischemic changes in early or late postoperative period, which led them to be re-evaluated by coronary angiography. The grafts were divided in three groups: internal thoracic artery (ITA), radial artery (RA) and saphenous vein (SV), and they were stratified according to the severity of injury: uninjured or patent (

Herbert Coelho, Hortmann; Homero Geraldo de, Oliveira; Renato Rocha, Rabello; Eduardo Augusto Victor, Rocha; Sérgio Caporali de, Oliveira.

2010-06-01

133

Subdiaphragmatic venous stasis and tissular hypoperfusion as sources of metabolic acidosis during passive portal-jugular and caval-jugular bypasses in dogs  

Directory of Open Access Journals (Sweden)

Full Text Available Subdiafragmatic venous decompression during anhepatic stage of canine orthotopic liver transplantation attenuates portal and caval blood stasis and minimize hipoperfusion and metabolic acidosis observed with occlusion of portal and caval veins. During two hours, six dogs submitted to portal-jugular and caval-jugular passive shunts, with maintenance of arterial hepatic flow, were evaluated for pH, carbon dioxide tension (PCO2, base deficit (BD and oxygen tension (PO2 in portal, caval and systemic arterial blood, as well as for increments of BD (DBD in portal and caval blood. With a confidence level of 95%, the results showed that: 1. There were not changes of pH anDBD in portal and systemic arterial blood in the majority of studied times; 2. There was metabolic acidosis in caval blood; 3. The negative increments of BD (DBD were higher in caval blood than in splancnic venous blood at T10, T30 and T105; and, 4. Deoxigenation of portal and caval blood were detected. Acid-base metabolism and oxigenation monitoring of subdiaphramatic venous blood can constitute an effective way to evaluate experimental passive portal-jugular and caval-jugular bypass in dogs.

Coelho Antônio Roberto de Barros

2000-01-01

134

Two Rare Anatomical Variations of External Jugular Vein: an Embryological Overview / Dos Raras Variaciones Anatómicas de la Vena Yugular Externa: una Visión Embriológica  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in spanish La anatomía humana tiene un sin fin de variaciones y sus misterios se han develado desde el inicio de los tiempos. El conocimiento de las variaciones anatómicas de las venas superficiales de la cabeza y del cuello es fundamental para llevar a cabo con éxito los procedimientos quirúrgicos. Durante un [...] a disección de rutina de cabeza y cuello encontramos una arquitectura venosa interesante en dos cadáveres de hombres de mediana edad en el Departamento de Anatomía de la Facultad de Medicina Nacional Calcuta, Calcuta, India. En el lado izquierdo del cuello de ambos cadáveres, la vena retromandibular no se encontraba dividida, y se unía a la vena facial en un ángulo agudo, para formar un tronco venoso común a una distancia variable desde el ángulo de la mandíbula. Ese tronco finalmente drenaba en la vena subclavia izquierda. Esto podría ser el resultado de la desaparición de la parte cefálica de la vena yugular externa y la formación de una comunicación adicional entre la vena facial común y la vena yugular externa en la vida fetal. En un caso, también se encontró con una comunicación adicional transversal entre ese tronco común y la vena yugular interna. Se realiza una descripción en detalle de los casos junto a una explicación embriológica. Abstract in english Human anatomy is an ocean of unending variations and its mysteries are being unravelled since ages. Knowledge of variations in the superficial veins of head and neck is essential to carry out successful surgical procedures. During routine dissection of head and neck of two middle aged male cadavers, [...] in the Department of Anatomy, Calcutta National Medical College, Kolkata, India, we came out with some interesting venous architecture. The retromandibular vein on the left side of both the cadavers was found to be undivided and joined with the facial vein in the neck at an acute angle to form a common venous trunk at variable distances from the angle of the mandible. That trunk ultimately drained into the left subclavian vein. This might be the result of disappearance of the cephalic part of the external jugular vein and formation of an additional communication between common facial vein and the external jugular vein in foetal life. In one case, we also came across an extra transverse communication between that common trunk and the internal jugular vein. A detail of those cases with embryological explanation is attempted.

Susmita, Ghosh; Lopamudra, Mandal; Sanchita, Roy; Manimay, Bandyopadhyay.

2012-09-01

135

Veias do sistema porta-hepático em gansos domésticos / Veins from hepatic portal vein system in domestic geese  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese A distribuição intraparenquimal das veias porta-hepáticas foi estudada em 30 gansos domésticos. Latex Neoprene corado foi injetado pela veia isquiática e os animais forma fixados por imersão e injeção intramuscular com formol a 10% e dissecados. O fígado esteve composto por um grande lobo hepático d [...] ireito e por um lobo hepático esquerdo menor, os quais estiveram conectados por uma ponte de parênquima. O lobo direito do fígado teve exclusivamente vasos do sistema porta-hepático formados pela distribuição intraparenquimal da veia porta-hepática direita, enquanto que no lobo esquerdo estes originaram-se da veia porta-hepática direita e de pequenas veias porta-hepáticas esquerdas. A veia porta-hepática direita emitiu o ramo caudal direito, que emitiu um pequeno ramo caudolateral direito e um grande ramo caudomedial direito. Cranialmente esta veia emitiu os ramos craniais direito e ramos lateral direito. A porção transversa da veia porta-hepática direita cruzou para o lobo hepático esquerdo, emitindo de 1 a 6 pequenos ramos craniais e caudais para a região média do fígado. No lobo esquerdo, o ramo esquerdo da veia porta-hepática direita emitiu o ramo cranial esquerdo, o ramo lateral esquerdo e o ramo medial. De 1 a 6 veias porta-hepáticas esquerdas foram identificadas desembocando ou no ramo esquerdo da veia porta-hepática direita ou em sua porção transversa, oriundos do ventrículo gástrico e do pró-ventrículo. Em 40% dos gansos uma veia porta-hepática própria oriunda da confluência de vasos venosos da face esquerda do ventrículo distribuiu-se na extremidade caudal do lobo esquerdo isoladamente. Abstract in english The intraparenchymal distribution of the hepatic portal veins in 30 domestic geese were studied. Stained Neoprene latex was injected into the isquiatic vessels, and the animals were fixed in 10% formaldehyde by immersion and intramuscular injection. The liver of geese was composed of a large right a [...] nd a smaller left hepatic lobe, connected by a parenchyma bridge. The right hepatic lobe had vessels exclusively from the hepatic portal system composed by intraparenchymal distribution of the right hepatic portal vein, while the vessels of the left hepatic lobe came from the right hepatic portal vein and from small left hepatic portal veins. The right hepatic portal vein emitted the right caudal branch, which emitted a small right caudolateral branch and a large right caudomedial branch. Cranially this vein emitted right cranial and right lateral branches. The tranverse portion of the right hepatic portal vein crossed to the left hepatic lobe, emitting 1 to 6 small cranial and caudal branches to the medial area of the liver. In the left hepatic lobe, the left branch from the right hepatic vein emitted the left cranial, left lateral and left median branches. One to six left hepatic portal veins were identified arising from the left branch or from the transverse portion of the right hepatic portal vein. These vessels arose from the gizzard and pro-ventricle. In 40% of geese one proper hepatic portal vein originated from venous vessels of the gizzard and was distributed into the caudal extremity of the left hepatic isolated lobe.

Tatiana C., Santos; Carla C.F., Borba; Anita, Menconi; Marina O., Maia; Pedro P., Bombonatto; Cheston C.H., Pereira.

2009-04-01

136

Veias do sistema porta-hepático em gansos domésticos Veins from hepatic portal vein system in domestic geese  

Directory of Open Access Journals (Sweden)

Full Text Available A distribuição intraparenquimal das veias porta-hepáticas foi estudada em 30 gansos domésticos. Latex Neoprene corado foi injetado pela veia isquiática e os animais forma fixados por imersão e injeção intramuscular com formol a 10% e dissecados. O fígado esteve composto por um grande lobo hepático direito e por um lobo hepático esquerdo menor, os quais estiveram conectados por uma ponte de parênquima. O lobo direito do fígado teve exclusivamente vasos do sistema porta-hepático formados pela distribuição intraparenquimal da veia porta-hepática direita, enquanto que no lobo esquerdo estes originaram-se da veia porta-hepática direita e de pequenas veias porta-hepáticas esquerdas. A veia porta-hepática direita emitiu o ramo caudal direito, que emitiu um pequeno ramo caudolateral direito e um grande ramo caudomedial direito. Cranialmente esta veia emitiu os ramos craniais direito e ramos lateral direito. A porção transversa da veia porta-hepática direita cruzou para o lobo hepático esquerdo, emitindo de 1 a 6 pequenos ramos craniais e caudais para a região média do fígado. No lobo esquerdo, o ramo esquerdo da veia porta-hepática direita emitiu o ramo cranial esquerdo, o ramo lateral esquerdo e o ramo medial. De 1 a 6 veias porta-hepáticas esquerdas foram identificadas desembocando ou no ramo esquerdo da veia porta-hepática direita ou em sua porção transversa, oriundos do ventrículo gástrico e do pró-ventrículo. Em 40% dos gansos uma veia porta-hepática própria oriunda da confluência de vasos venosos da face esquerda do ventrículo distribuiu-se na extremidade caudal do lobo esquerdo isoladamente.The intraparenchymal distribution of the hepatic portal veins in 30 domestic geese were studied. Stained Neoprene latex was injected into the isquiatic vessels, and the animals were fixed in 10% formaldehyde by immersion and intramuscular injection. The liver of geese was composed of a large right and a smaller left hepatic lobe, connected by a parenchyma bridge. The right hepatic lobe had vessels exclusively from the hepatic portal system composed by intraparenchymal distribution of the right hepatic portal vein, while the vessels of the left hepatic lobe came from the right hepatic portal vein and from small left hepatic portal veins. The right hepatic portal vein emitted the right caudal branch, which emitted a small right caudolateral branch and a large right caudomedial branch. Cranially this vein emitted right cranial and right lateral branches. The tranverse portion of the right hepatic portal vein crossed to the left hepatic lobe, emitting 1 to 6 small cranial and caudal branches to the medial area of the liver. In the left hepatic lobe, the left branch from the right hepatic vein emitted the left cranial, left lateral and left median branches. One to six left hepatic portal veins were identified arising from the left branch or from the transverse portion of the right hepatic portal vein. These vessels arose from the gizzard and pro-ventricle. In 40% of geese one proper hepatic portal vein originated from venous vessels of the gizzard and was distributed into the caudal extremity of the left hepatic isolated lobe.

Tatiana C. Santos

2009-04-01

137

Efeitos do ultra-som de baixa intensidade na veia auricular de coelhos  

OpenAIRE

OBJETIVO: Estudar a ação do ultra-som na veia auricular de coelhos. MÉTODOS: Vinte coelhos foram divididos em dois grupos de dez animais diferindo com relação ao local da aplicação, do ultra-som, o modo e o intervalo de tempo para a análise histopatológica (3 e 7 dias). Os animais foram submetidos à aplicação de ultra-som contínuo e pulsado em dois segmentos venosos da orelha previamente determinados. Cada animal foi o seu próprio controle. Empregou-se a freqüência de 3MHz, in...

Araújo Marcelo; Baptista-Silva José Carlos Costa; Gomes Paulo de Oliveira; Campos Humberto de Oliveira; Novo Neil Ferreira; Juliano Yara

2000-01-01

138

Relações cranioencefálicas das veias de Trolard e de Labbé: aplicações neurocirúrgicas Cranioencephalic relationships between Trolard and Labbé veins: neurosurgical applications  

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Full Text Available Realizamos estudo anatômico das veias anastomóticas de Trolard e de Labbé em sete segmentos cefálicos com o objetivo de precisar o trajeto e as referências que facilitem a preservação destes vasos durante o procedimento cirúrgico. Estudamos também as relações da veia de Trolard com a área motora.We accomplished an anatomic study of the anastomotic veins of Trolard and Labbé in seven human cephalic segments with the objective to accurate its stretch and references to facilitate its preservation during surgical procedure. The relationship between the Trolard vein and motor cortex was also studied.

Sebastião Gusmão

2001-03-01

139

Análise radiológica da veia cava caudal em ratos Wistar Radiologic analyses of caudal vein in Wistar rats  

OpenAIRE

OBJETIVO: Apresentar um método de estudo angiográfico da veia cava caudal em ratos. MÉTODOS: Foram utilizados 24 ratos Wistar machos, com peso entre 300 a 350 gramas. Os animais foram operados com anestesia geral, utilizando-se injeção intraperiotoneal da solução de Cloridrato Ketamina e Cloridrato de 2-(2,6- xilidino) -5,6- dihidro-4H-1,3-tiazina. O contraste iodado foi injetado na veia dorsal do pênis do rato, utilizando uma agulha de calibre 21 acoplada ao sistema Butterfly® de in...

Luciano Rodrigues Schmidt; Edson José Cardoso; Rogério Rodrigues Schmidt; Silva, Carlos Alberto Justo E.; Acampora, Armando Jose? D.

2004-01-01

140

["High jugular bulb": clinical feature, radiographical findings and differential diagnosis, a case report].  

Science.gov (United States)

Anatomically, the top portion of the jugular bulb lies just below the floor of the hypotympanum. In rare instances, it can protrude upward and elevate the floor of the hypotympanum thus placing it in the middle ear. Such a case is called high jugular bulb. This anatomical variation has been found in 3.5% to 6% of the temporal bones studied in several reports. But, clinically, only 43 cases have been reported, because in most cases they are asymptomatic. A 17-year-old female was hospitalized with right hearing disturbance and dizziness. Neurootological examination revealed sensory neuronal hearing disturbance. A caloric test was scaled out. Axial bone window CT scan demonstrated an enlarged jugular bulb and an extended upward projecting hypotympanum. MRI indicated flow void in the same region. Retrograde jugulography has been the most useful method for diagnosis but we were able to diagnose it by noninvasive MR angiography. High jugular bulb is an unfamiliar disease entity for neurosurgeons, but we should remember that it is one of the differential diagnosis for c-p angle regions or jugular foramen regions. PMID:8741412

Murao, M; Kojima, H; Takemura, N; Tsuchida, T

1996-08-01

141

Noninvasive measurement of internal jugular venous oxygen saturation by photoacoustic imaging  

Science.gov (United States)

The metabolic rate and oxygen consumption of the brain is reflected in jugular venous oxygen saturation. In many clinical conditions, such as head trauma, stroke, and low cardiac output states, the brain is at risk for hypoxic-ischemic injury. The current gold standard for monitoring brain oxygenation is invasive and requires jugular vein catheterization under fluoroscopic guidance; and therefore it is rarely used. Photo-acoustic tomography in combination with ultrasound can be used to estimate oxygen saturation of the internal jugular vein in real-time. This noninvasive method will enable earlier detection and prevention of impending hypoxic brain injury. A wavelength-tunable dye laser pumped by a Nd:YAG laser delivers light through an optical fiber bundle, and a modified commercial ultrasound imaging system (Philips iU22) detects both the pulse-echo ultrasound (US) and photoacoustic (PA) signals. A custom-built multichannel data acquisition system renders co-registered ultrasound and photoacoustic images at 5 frames per second. After the jugular vein was localized in healthy volunteers, dualwavelength PA images were used to calculate the blood hemoglobin oxygen saturation from the internal jugular vein in vivo. The preliminary results raise confidence that this emerging technology can be used clinically as an accurate, noninvasive indicator of cerebral oxygenation.

Garcia-Uribe, Alejandro; Erpelding, Todd N.; Ke, Haixin; Reddy, Kavya; Sharma, Anshuman; Wang, Lihong V.

2014-03-01

142

Valsalva and gravitational variability of the internal jugular vein and common femoral vein: Ultrasound assessment  

International Nuclear Information System (INIS)

Purpose: Central venous cannulation via the common femoral vein is an important starting point for many interventions. The purpose of this study was to determine the optimum conditions for cannulation of the femoral vein and to compare these with the relative changes in the internal jugular vein. Methods: High-resolution 2D ultrasound was utilised to determine variability of the calibre of the femoral and internal jugular veins in 10 healthy subjects. Venous diameter was assessed during the Valsalva manoeuvre and in different degrees of the Trendelenburg position. Results: The Valsalva manoeuvre significantly increased the size of the femoral and internal jugular veins. There was a relatively greater increase in femoral vein diameter when compared with the internal jugular vein of 40 and 29%, respectively. Changes in body inclination (Trendelenburg position) did not significantly alter the luminal diameter of the femoral vein. However, it significantly increased internal jugular vein diameter. Conclusions: Femoral vein cannulation is augmented by the Valsalva manoeuvre but not significantly altered by the gravitational position of the subject

143

Valsalva and gravitational variability of the internal jugular vein and common femoral vein: Ultrasound assessment  

Energy Technology Data Exchange (ETDEWEB)

Purpose: Central venous cannulation via the common femoral vein is an important starting point for many interventions. The purpose of this study was to determine the optimum conditions for cannulation of the femoral vein and to compare these with the relative changes in the internal jugular vein. Methods: High-resolution 2D ultrasound was utilised to determine variability of the calibre of the femoral and internal jugular veins in 10 healthy subjects. Venous diameter was assessed during the Valsalva manoeuvre and in different degrees of the Trendelenburg position. Results: The Valsalva manoeuvre significantly increased the size of the femoral and internal jugular veins. There was a relatively greater increase in femoral vein diameter when compared with the internal jugular vein of 40 and 29%, respectively. Changes in body inclination (Trendelenburg position) did not significantly alter the luminal diameter of the femoral vein. However, it significantly increased internal jugular vein diameter. Conclusions: Femoral vein cannulation is augmented by the Valsalva manoeuvre but not significantly altered by the gravitational position of the subject.

Beddy, P. [Department of Radiology, The Adelaide and Meath Hospital, Tallaght, Dublin 24 (Ireland)]. E-mail: pbeddy@eircom.net; Geoghegan, T. [Department of Radiology, The Adelaide and Meath Hospital, Tallaght, Dublin 24 (Ireland); Ramesh, N. [Department of Radiology, The Adelaide and Meath Hospital, Tallaght, Dublin 24 (Ireland); Buckley, O. [Department of Radiology, The Adelaide and Meath Hospital, Tallaght, Dublin 24 (Ireland); O' Brien, J. [Department of Radiology, The Adelaide and Meath Hospital, Tallaght, Dublin 24 (Ireland); Colville, J. [Department of Radiology, The Adelaide and Meath Hospital, Tallaght, Dublin 24 (Ireland); Torreggiani, W.C. [Department of Radiology, The Adelaide and Meath Hospital, Tallaght, Dublin 24 (Ireland)

2006-05-15

144

[Anterior jugular vein cavernoma in a forthcoming rupture stage: a case report].  

Science.gov (United States)

The Authors present a very rare case of left anterior jugular vein cavernoma anterior jugular vein cavernoma in an over-seventy-year-old woman. The patient was visited already in a complicated status occurring as an increasing lateral neck mass. The case is so interesting for several reasons: for the peculiar lesion that belongs, in fact, to the uncommon group of the cavernous hemangiomas; for the exceptional localization on the anterior jugular vein; for the old age of the patient; last, but not least, for the unusual presentation of the forthcoming rupture. A speed healing without complications has been achieved thanks to the immediate diagnosis (it is important to suspect the lesion!), to the imaging techniques and to the surgical approach performed in emergency. PMID:16696225

Andreano, Mauro; Romagnuolo, Giuseppe; D'Ambrosio, Vito; La Rocca, Francesco; Zito, Ezio Saverio; Festa, Patrizio; Lionello, Maurizio; Nicodemi, Ornella

2005-01-01

145

Transcatheter closure of a residual aortopulmonary window through internal jugular vein access.  

Science.gov (United States)

The use of Amplatzer septal occluder for closing a residual aortopulmonary defect has been described. This is usually performed by femoral access. We report closure of a residual aortopulmonary defect using right internal jugular vein access in a patient who had no femoral access as a result of previous cannulation for surgical repair. The 1 cm defect was closed successfully using a 10 mm Amplatzer septal occluder. Technical difficulty anticipated was unfounded although it was more cumbersome than femoral access. Left to right cardiac defects including PDA and AP window are amenable to transcatheter closure through internal jugular vein access. PMID:23102395

Prem Sekar, R; Bhima Shankar, P R; Cherian, Kotturathu Mamman

2012-01-01

146

No increase of calcitonin gene-related peptide in jugular blood during migraine  

DEFF Research Database (Denmark)

Increased calcitonin gene-related peptide (CGRP) in external jugular venous blood during migraine attack is one of the most cited findings in the headache literature. The finding has not been convincingly reproduced and is based on comparison with historic control subjects. The validity of this finding is important for the understanding of migraine. We therefore investigated the issue using an intrapatient comparison design and two different CGRP assays. We sampled blood from the external jugular and cubital vein during, as well as outside of, an attack of migraine without aura. We succeeded in 17 patients, whereas only cubital fossa blood could be sampled in an additional 4 patients. CGRP was measured with the same assay as most previous studies (assay I) and furthermore with a more sensitive and validated assay (assay II). For assay I, mean CGRP concentration in external jugular venous blood during attack was 17.18 pmol/L compared with 15.88 pmol/L outside of attack. Mean difference was 1.81 pmol/L (95% confidence interval [CI]: -2.88, 6.41; p = 0.44). In peripheral blood during attack, CGRP was 16.86 pmol/L compared with 17.57 pmol/L outside of attack. Mean difference was -0.79 pmol/L (95% CI: -4.64, 3.06; p = 0.69). For assay II, external jugular venous blood concentration of CGRP during attack was 32.59 pmol/L compared with 30.59 pmol/L outside of attack; mean difference was 2.00 pmol/L (standard error, 2.39; 95% CI: -3.07, 7.07; p = 0.416). In peripheral blood during attack, CGRP was 33.37 pmol/L compared with 31.84 pmol/L outside of attack; mean difference was 1.53 pmol/L (standard error, 1.90; 95% CI: -2.46, 5.51; p = 0.431). Thus, no difference between CGRP level in external jugular or cubital fossa blood during and outside of attack was found. No difference was found between external jugular and peripheral venous blood. Thus, previous findings of increased CGRP level in external jugular or cubital fossa venous blood could not be confirmed. Our finding strongly suggests that CGRP is not increased in jugular venous blood during migraine without aura. CGRP cannot be used as a biomarker to validate human or animal models of migraine.

Tvedskov, Jesper; Lipka, Kerstin

2005-01-01

147

Comparative morphometric study of the sigmoid sinus sulcus and the jugular foramen / Estudo morfométrico comparativo do sulco do seio sigmóideo e do forame jugular  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Objetivo Comparar os lados direito e esquerdo no mesmo crânio nos pontos referenciais descritos e definir as diferenças craniométricas entre ambos. Método Realizamos mensurações em 50 crânios secos de humanos adultos comparando os lados direito e esquerdo. Resultados Como resultado, obtivemos a [...] s medidas da largura do seio sigmóideo na altura do ângulo sinodural maiores no lado direito em 78% dos casos e na altura do ponto digástrico em 72%. A largura do forame jugular foi também maior no lado direito em 84% dos casos. A distância do seio sigmóideo na altura do ângulo sinodural até a altura do ponto digástrico foi maior do lado direito em 64% dos casos, e a distância do seio sigmóideo na altura do ponto digástrico até o forame jugular foi maior do lado direito em 70% dos casos. Conclusão Diferenças craniométricas significativas foram encontradas entre os dois lados do crânio. Abstract in english Objective To compare the right and left sides of the same skulls as far as the described landmarks are concerned, and establish the craniometric differences between them. Method We carried out measurements in 50 adult dry human skulls comparing both sides. Results The sigmoid sinus width at the [...] sinodural angle level was larger on the right side in 78% of the cases and at the level of the digastric notch in 72%. The jugular foramen width was also larger on the right side in 84% of the cases. The sigmoid sinus distance at the level of the digastric notch was larger on the right side in 64% of the cases, and the sigmoid sinus distance at the level of the digastric notch to the jugular foramen was larger on the right side in 70% of the cases. Conclusion Significant craniometric differences were found between both sides of the same skulls.

Silvio Pereira, Ramos Junior; Sebastião Natanael da Silva, Gusmão; Jair Leopoldo, Raso; Arthur Adolfo, Nicolato; Marcileia, Santos; Isabela Maciel, Caetano.

2014-09-01

148

Imaging analysis of hemangiopericytoma in the region of jugular foramen (report of one case and literature review)  

International Nuclear Information System (INIS)

Objective: To investigate imaging diagnosisand differential diagnosis of hemangiopericytoma in the region of jugular foramen. Methods: 1 case of hemangiopericytoma in the region of jugular foramen proved by surgery and pathology was examined by 64 slices multiple rows sprial CT and 1.5T MRI pre-operation, the imaging features were analyzed retrospectively. Results: The hemangiopericytoma in the region of jugular foramen was misdiagnosised by both CT and MRI pre-operation. The tumor was oval in shape, with distinct boundary. Homogeneous and obvious enhancement was seen after giving contrast. Adjacent vessel were pushed by the tumor and deformed Jugular foramen enlarged because of destruction of bone. Conclusion: There isn't specific CT and MRI finding for hemangiopericytoma in the region of jugular foramen. However, imaging examination can clearly display the tumor and adjacent structures, so as to provide accurate anatomy information for surgery. (authors)

149

Afluência da veia esplênica e sua importância nas derivações esplenorrenais seletivas Splenic tributaries and their importance on selective splenorenal shunts  

Directory of Open Access Journals (Sweden)

Full Text Available Os autores realizaram estudo da afluência da veia esplênica utilizando 38 moldes de duodeno, estômago, pâncreas e baço, por meio da técnica de repleção e corrosão, com vinilite corado com azul da Prússia. Os afluentes encontrados foram: ramos pancreáticos em todas as peças, variando de 7 a 22 ramos, com média de 14,52 ± 3,53; a veia gástrica esquerda, em 36,84% das peças; a veia mesentérica inferior em 44,74% das peças; ramo gástrico (gástrica posterior, proveniente do fundo gástrico, em 57,89% das peças, e ramos pancreáticos, provenientes da cauda do pâncreas e desembocando em ramos segmentares da veia esplênica, em 65,79% das peças. Os ramos pancreáticos variaram em número de um a quatro, com média de 1,64 ± 0,95. Os autores concluem que o conhecimento dos afluentes da veia esplênica seria importante na realização das derivações esplenorrenais distais, quando associadas à desconexão esplenopancreática.The authors present a study of 38 vinyl acetate models of duodenum, pancreas, stomach and spleen where the tributaries of the splenic veins were identified and quantified. It was found that all the splenic veins receive pancreatic veins. The number of those veins ranged between seven and 22, median of 14.52±3.53. The left gastric vein joined the splenic vein in 36.84% of the models. The inferior mesenteric vein joined the splenic vein in 44.74% of the models. One gastric vein, from the fundus of the stomach, joined the splenic vein in 57.89% of the models. On 65.79% of the models, pancreatic veins from the tail of the pancreas ended in a segmental vein of the spleen. They range from one to four with a median of 1.64±0.95. The authors concluded that the knowledge of the number and frequency of splenic vein tributaries would be important in the distal splenorenal shunt when associated with spleno-pancreatic disconnection.

Claudio Piras

1998-12-01

150

Veias linfonodais: uma causa pouco conhecida de varizes Lymph node veins: a little-known cause of varicose veins  

Directory of Open Access Journals (Sweden)

Full Text Available As veias linfonodais fazem parte de uma rede venosa no triângulo de Scarpa, que liga em vários pontos o sistema venoso superficial às veias profundas, e podem tanto ser causa de incompetência do sistema venoso superficial quanto estar envolvidas na recorrência pós-safenectomia. Na rotina diária dos exames de Doppler venoso de membros inferiores, temos notado de maneira cada vez mais freqüente a associação das veias linfonodais com varizes primárias e recorrentes. A adequada caracterização dessas veias pode ajudar na compreensão do mecanismo fisiopatológico do aparecimento das varizes e permitir um controle e tratamento mais dirigidos. Este artigo lança luz sobre os aspectos anatômicos e fisiológicos das veias linfonodais, objetivando chamar a atenção dos profissionais envolvidos no diagnóstico de doenças venosas dos membros inferiores para uma causa pouco difundida de varizes.Lymph node veins are part of a venous network in Scarpa"s triangle, communicating in many points the superficial venous system and the deep veins, and may either be the cause of incompetence of the superficial venous system, or be involved in recurrent varicose veins after saphenous vein stripping. In the daily routine of venous Doppler examination of the lower extremities, an increasingly frequent association of lymph node veins with primary and/or recurrent varicose veins has been noticed. Appropriate characterization of these veins may help to understand the pathophysiological mechanism of varicose vein appearance and provide a more focused approach to follow-up and treatment. This article sheds some light on the anatomical and physiological aspects of lymph node veins, drawing the attention of professionals involved in the diagnosis of venous disorders of the lower extremities to a little-known cause of varicose veins.

André Paciello Romualdo

2008-12-01

151

Veias linfonodais: uma causa pouco conhecida de varizes / Lymph node veins: a little-known cause of varicose veins  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese As veias linfonodais fazem parte de uma rede venosa no triângulo de Scarpa, que liga em vários pontos o sistema venoso superficial às veias profundas, e podem tanto ser causa de incompetência do sistema venoso superficial quanto estar envolvidas na recorrência pós-safenectomia. Na rotina diária dos [...] exames de Doppler venoso de membros inferiores, temos notado de maneira cada vez mais freqüente a associação das veias linfonodais com varizes primárias e recorrentes. A adequada caracterização dessas veias pode ajudar na compreensão do mecanismo fisiopatológico do aparecimento das varizes e permitir um controle e tratamento mais dirigidos. Este artigo lança luz sobre os aspectos anatômicos e fisiológicos das veias linfonodais, objetivando chamar a atenção dos profissionais envolvidos no diagnóstico de doenças venosas dos membros inferiores para uma causa pouco difundida de varizes. Abstract in english Lymph node veins are part of a venous network in Scarpa"s triangle, communicating in many points the superficial venous system and the deep veins, and may either be the cause of incompetence of the superficial venous system, or be involved in recurrent varicose veins after saphenous vein stripping. [...] In the daily routine of venous Doppler examination of the lower extremities, an increasingly frequent association of lymph node veins with primary and/or recurrent varicose veins has been noticed. Appropriate characterization of these veins may help to understand the pathophysiological mechanism of varicose vein appearance and provide a more focused approach to follow-up and treatment. This article sheds some light on the anatomical and physiological aspects of lymph node veins, drawing the attention of professionals involved in the diagnosis of venous disorders of the lower extremities to a little-known cause of varicose veins.

André Paciello, Romualdo; Roberto de Moraes, Bastos; Alessandro, Cappucci; Mathias, Fatio; Andréa, Tsunoda; Pollyanna, Campos; Alberto Lobo, Machado; Eduardo Hideki, Tokura.

2008-12-01

152

AFIRMAREA PREOCUP?RILOR PRIVIND PREZEN?A DIRECT? A PERSOANELOR FIZICE ÎN MEDIUL INTERNA?IONAL, O „SFIDARE” LA ADRESA CARACTERULUI „INTERETATIC” AL DREPTULUI INTERNA?IONAL?  

OpenAIRE

În doctrina dreptului interna?ional exist? p?reri bine fundamentate care refuz? s? accepte teoriaconform c?reia individul ar avea calitatea de subiect de drept interna?ional.Astfel, unii autori consider? c? persoanele fizice, chiar dac? au calitatea de autori ai unorcrime interna?ionale, nu pot avea, sub nici o form?, calitatea de subiecte de drept interna?ional.De asemenea, ?i în cazul când drepturile prev?zute în instrumentele interna?ionale se consider?a nu fi conferit...

Ionut Andrei Barbu

2008-01-01

153

Colapsibilidade da Veia Cava Inferior e sinais e sintomas de insuficiência cardíaca: novos insights e possíveis associações Inferior Vena Cava collapsibility and heart failure signs and symptoms: new insights about possible links  

Directory of Open Access Journals (Sweden)

Full Text Available FUNDAMENTO: Nos pacientes com Insuficiência Cardíaca Crônica (ICC foram propostas medidas ultrassonográficas do Índice de Colapsibilidade da Veia Cava Inferior (ICVCI para obter uma avaliação e classificação minuciosa da congestão hemodinâmica. OBJETIVO: A finalidade deste estudo era correlacionar os achados no exame físico com o ICVCI em pacientes com ICC. MÉTODOS: De acordo com um projeto de coorte retrospectivo, analisamos 54 pacientes com ICC, direita ou biventricular, classe NYHA III. O plano era determinar se alguma faixa de ICVCI basal poderia predizer uma persistência ou agravamento da congestão clínica achada no final do acompanhamento subsequente (isto é, após 1-2 meses do tratamento oral otimizado. Para essa finalidade, os pacientes foram subdivididos em três grupos de acordo com o valor de ICVCI basal: ? 15% (13 pts, 16 - 40% (21 pts e > 40% (20 pts. Diversos critérios clínicos de congestão foram comparados por meio dos três grupos e incorporados subsequentemente ao modelo multivariado de Cox. RESULTADOS: Preditores multivariados de alto escore de congestão foram distensão da veia jugular (FC: 13,38 95% IC: 2,13 - 84 p = 0,0059 e estertores (FC: 11 95% C.I : 1,45 - 83,8 p = 0,0213. O ICVCI ? 15% esteve sempre associado com um alto escore de congestão na segunda visita; todavia, o ICVCI o ? 15% não predisse um alto escore de congestão na segunda visita. CONCLUSÃO: No âmbito da ICC, um baixo ICVCI não predisse, em forma confiável, um elevado escore de congestão. Não obstante, o conjunto com ICVCI ? 15% sempre se achou associado com sinais e sintomas de uma ICC descompensada, tanto do lado direito como do esquerdo. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0BACKGROUND: In chronic heart failure patients (CHF, ultrasound measurement of inferior vena cava collapsibility index (IVCCI has been proposed to yield careful assessment and grading of the hemodynamic congestion. OBJECTIVE: The purpose of this study was to correlate the findings of physical examination with IVCCI in CHF patients. METHODS: According to a retrospective cohort design, we analyzed 54 CHF patients with right or biventricular CHF, belonging to III NYHA class. We planned to determine whether any basal IVCCI range would be able to predict persistent or worsening clinical congestion found at the end of subsequent follow up (i.e. after 1-2 months of oral optimized therapy. For this purpose, the patients were subdivided by three groups according to the basal IVCCI value: ? 15% (13 pts, 16 - 40% (21 pts and > 40% (20 pts.Several clinical criteria of congestion were compared across the three groups and subsequently entered in the Cox multivariate model. RESULTS: Multivariate predictors of high congestion score were jugular venous distension (HR: 13,38 95% C.I.: 2,13 - 84 p = 0,0059 and rales (HR: 11 95% C.I : 1,45 - 83,8 p = 0,0213. IVCCI ? 15% was always associated with high congestion score at the second visit; but IVCCI ? 15% failed to predict high congestion score at the second visit. CONCLUSION: In CHF setting, low IVCCI did not reliably predict high congestion score. Nevertheless, the cluster with IVCCI ? 15% was always found associated with signs and symptoms from both right and left-sided decompensated CHF. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0.

Renato De Vecchis

2012-06-01

154

Colapsibilidade da Veia Cava Inferior e sinais e sintomas de insuficiência cardíaca: novos insights e possíveis associações / Inferior Vena Cava collapsibility and heart failure signs and symptoms: new insights about possible links  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese FUNDAMENTO: Nos pacientes com Insuficiência Cardíaca Crônica (ICC) foram propostas medidas ultrassonográficas do Índice de Colapsibilidade da Veia Cava Inferior (ICVCI) para obter uma avaliação e classificação minuciosa da congestão hemodinâmica. OBJETIVO: A finalidade deste estudo era correlacionar [...] os achados no exame físico com o ICVCI em pacientes com ICC. MÉTODOS: De acordo com um projeto de coorte retrospectivo, analisamos 54 pacientes com ICC, direita ou biventricular, classe NYHA III. O plano era determinar se alguma faixa de ICVCI basal poderia predizer uma persistência ou agravamento da congestão clínica achada no final do acompanhamento subsequente (isto é, após 1-2 meses do tratamento oral otimizado). Para essa finalidade, os pacientes foram subdivididos em três grupos de acordo com o valor de ICVCI basal: ? 15% (13 pts), 16 - 40% (21 pts) e > 40% (20 pts). Diversos critérios clínicos de congestão foram comparados por meio dos três grupos e incorporados subsequentemente ao modelo multivariado de Cox. RESULTADOS: Preditores multivariados de alto escore de congestão foram distensão da veia jugular (FC: 13,38 95% IC: 2,13 - 84 p = 0,0059) e estertores (FC: 11 95% C.I : 1,45 - 83,8 p = 0,0213). O ICVCI ? 15% esteve sempre associado com um alto escore de congestão na segunda visita; todavia, o ICVCI o ? 15% não predisse um alto escore de congestão na segunda visita. CONCLUSÃO: No âmbito da ICC, um baixo ICVCI não predisse, em forma confiável, um elevado escore de congestão. Não obstante, o conjunto com ICVCI ? 15% sempre se achou associado com sinais e sintomas de uma ICC descompensada, tanto do lado direito como do esquerdo. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0) Abstract in english BACKGROUND: In chronic heart failure patients (CHF), ultrasound measurement of inferior vena cava collapsibility index (IVCCI) has been proposed to yield careful assessment and grading of the hemodynamic congestion. OBJECTIVE: The purpose of this study was to correlate the findings of physical exami [...] nation with IVCCI in CHF patients. METHODS: According to a retrospective cohort design, we analyzed 54 CHF patients with right or biventricular CHF, belonging to III NYHA class. We planned to determine whether any basal IVCCI range would be able to predict persistent or worsening clinical congestion found at the end of subsequent follow up (i.e. after 1-2 months of oral optimized therapy). For this purpose, the patients were subdivided by three groups according to the basal IVCCI value: ? 15% (13 pts), 16 - 40% (21 pts) and > 40% (20 pts).Several clinical criteria of congestion were compared across the three groups and subsequently entered in the Cox multivariate model. RESULTS: Multivariate predictors of high congestion score were jugular venous distension (HR: 13,38 95% C.I.: 2,13 - 84 p = 0,0059) and rales (HR: 11 95% C.I : 1,45 - 83,8 p = 0,0213). IVCCI ? 15% was always associated with high congestion score at the second visit; but IVCCI ? 15% failed to predict high congestion score at the second visit. CONCLUSION: In CHF setting, low IVCCI did not reliably predict high congestion score. Nevertheless, the cluster with IVCCI ? 15% was always found associated with signs and symptoms from both right and left-sided decompensated CHF. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0).

Renato, De Vecchis; Antonio, Ciccarelli; Carmelina, Ariano.

2012-06-01

155

Coxiella burnetii infection of a bovine jugular vein conduit in a child.  

Science.gov (United States)

We report a case of an 11-year-old girl with Coxiella burnetii infection of a bovine jugular vein conduit which is an extremely rare manifestation of Q fever. The role of surgery in the management of C. burnetii endovascular infection and the use of serology are discussed. PMID:22349674

Tasher, Diana; Stein, Michal; Raucher-Sternfeld, Alona; Somekh, Eli

2012-06-01

156

The placement of an implantable chemoport via the external jugular vein as a primary route  

Energy Technology Data Exchange (ETDEWEB)

To evaluate the usefulness and safety of the placement of an implantable chemoport via external jugular vein as a primary route for chemotherapy. Between January 2006 and June 2007, a total of 108 implantable chemoports were placed on 325 patients for chemotherapy via the external jugular vein as a primary route. We placed a 9.6 F single lumen chemoport using a surgical procedure (n = 89) and an interventional procedure (n = 19), and evaluated the duration of catheterization days and treatment complications. An implantable chemoport was successfully installed in all cases. Furthermore, the duration of catheterization ranged from 2 to 461 days (mean: 187 days, total catheter days: 21,994). In addition, a total of 85 chemoports were removed due to complications (n = 7) and termination of chemotherapy (n 78). A transient pulmonary air embolism occurring during a procedure was observed in one case. No pneumothorax or catheter malpositions were observed in the study subjects. Two chemoports were removed two days after implantation due to persistent tachycardia. In addition, five late complications occurred, which resulted in catheter occlusion (3 cases) (3%, 0.14/1000 catheter day) and infection in (2 cases) (2%, 0.09/1000 Catheter days). Lastly, no symptoms were attributed to a central vein thrombosis. The results of this study suggest that the implantation of chemoports via the external jugular vein is a safe procedure. Moreover, the selection of the external jugular vein as a primary route is useful in determining chemoport insertion locations.

Ahn, Moon Sang; Shin, Byung Seok [Chungnam National University Hospital, Daejeon (Korea, Republic of); Park, Mi Hyun [Taejon Veterans Hospital, Daejeon (Korea, Republic of)

2008-03-15

157

Calcium micro-depositions in jugular truncular venous malformations revealed by Synchrotron-based XRF imaging.  

Science.gov (United States)

It has been recently demonstrated that the internal jugular vein may exhibit abnormalities classified as truncular venous malformations (TVMs). The investigation of possible morphological and biochemical anomalies at jugular tissue level could help to better understand the link between brain venous drainage and neurodegenerative disorders, recently found associated with jugular TVMs. To this end we performed sequential X-ray Fluorescence (XRF) analyses on jugular tissue samples from two TVM patients and two control subjects, using complementary energies at three different synchrotrons. This investigation, coupled with conventional histological analyses, revealed anomalous micro-formations in the pathological tissues and allowed the determination of their elemental composition. Rapid XRF analyses on large tissue areas at 12.74 keV showed an increased Ca presence in the pathological samples, mainly localized in tunica adventitia microvessels. Investigations at lower energy demonstrated that the high Ca level corresponded to micro-calcifications, also containing P and Mg. We suggest that advanced synchrotron XRF micro-spectroscopy is an important analytical tool in revealing biochemical changes, which cannot be accessed by conventional investigations. Further research on a larger number of samples is needed to understand the pathogenic significance of Ca micro-depositions detected on the intramural vessels of vein walls affected by TVMs. PMID:25286775

Pascolo, Lorella; Gianoncelli, Alessandra; Rizzardi, Clara; Tisato, Veronica; Salomé, Murielle; Calligaro, Carla; Salvi, Fabrizio; Paterson, David; Zamboni, Paolo

2014-01-01

158

Visualization of jugular vein on a thallium-201 scan for thyroid cancer  

International Nuclear Information System (INIS)

A 52 year-old woman with recurrent thyroid cancer showed an accumulation of Tl-201 chloride in the left side of the neck. This proved to be reflux and retention of Tl-201 chloride in the left internal jugular vein and was verified with a Tc-99m HSA flow study. This phenomenon could be mistaken for metastases of thyroid cancer

159

High computed tomographic correlations between carotid canal dehiscence and high jugular bulb in the middle ear.  

Science.gov (United States)

Both carotid canal dehiscence (CCD) and high jugular bulb (HJB) are thought to increase the potential for disastrous consequences during middle ear surgery. Clinical co-presentation of these two great vessel variants has not yet been described. This study aims to determine the relationship between CCD and HJB based on a computed tomographic (CT) temporal bone evaluation. High-resolution CT scans of 408 temporal bones obtained from 208 adults were recruited. Carotid canal integrity, jugular bulb position, petrous apex pneumatization and the minimal thickness of the carotid canal wall (TCW) facing the tympanic cavity were examined and measured for the incidence of CCD and/or HJB. Other variables including gender, age, laterality and the presence of otitis media or mastoiditis were also collected for analysis. CCD was found in 28 ears (6.9%); 19 of these were found to also have HJB (67.9%). The presence of CCD was significantly correlated with HJB presentation. The minimal TCW in HJB ears was significantly thinner than that of normally positioned jugular bulbs. Moreover, after controlling for other candidate variables, the independent factors of age (younger or older than 50 years) and jugular bulb position (high vs. normal) were found to predict the presence of CCD. In conclusion, HJB tends to coexist with a thinner carotid canal wall. This finding emphasizes the need to be watchful for the coexistence of these two great vessel anomalies when surgeons encounter an aged patient presenting either CCD or HJB during middle ear surgery. PMID:20606423

Wang, Chih-Hung; Shi, Zheng-Ping; Liu, Dai-Wei; Wang, Hsing-Won; Huang, Bor-Rong; Chen, Hsin-Chien

2011-01-01

160

Morphometry Of Jugular Foramen Of Dry Adult Human Skulls Of South India.  

Directory of Open Access Journals (Sweden)

Full Text Available Jugular foramen (JF lies between the occipital and the petrosal part of the temporal bone, and allows the passage of important nerves and vascular elements i.e. the glossopharyngeal, vagus, and accessory nerves and the internal jugular vein. It is a potential site for development of schwannomas, metastatic lesions, and infiltrative inflammatory processes from the surrounding structures such as middle ear. JF is difficult to approach surgically, but recent advanced techniques especially image intensifier to guide the suboccipital lateral approach have made the treatment possible despite the difficulties. Hence a detailed morphological and anatomical knowledge of this region is required. The morphologic dimensions, presence or absence of septation etc varies in various races and ethnic groups as reported in previous literature. But such detailed study has been lacking in south Indian population .Thus the present descriptive study was conducted in department of Anatomy, Kasturba Medical College, Mangalore on 50 dried adult human skulls i.e. 100 JF of Dravidian (south Indian origin. The maximum antero-posterior and transverse diameter and depth of the jugular fossa of both sides were measured and septation was 6% on the right side and 8% on the left side using vernier calipers. The presence of spicules / septation of the jugular foramen were also observed on both sides. The obtained results presented variations regarding some parameters when compared to previous studies, thus making it evident the significance of race in the morphometric measurements and characteristics of the JF.

Ashwin Krishnamurthy

2011-09-01

161

Depresión: Visión holística de la medicina interna*  

Scientific Electronic Library Online (English)

Full Text Available SciELO Venezuela | Language: Spanish Abstract in spanish La depresión, y la ansiedad acompañante, es la manifestación psicológica más frecuente e intensa del sufrimiento humano, que en casos extremos termina en el suicidio. A pesar de que puede restringir significativamente la calidad de vida del individuo, su interacción personal o social y productividad [...] , sorprende que a nivel de la atención médica primaria no sea reconocida en la mitad de los casos y sea tratada en sólo la mitad de los diagnosticados. Sin embargo, es responsabilidad del médico internista estar preparado para reconocer la depresión y tratarla eficientemente, por las siguientes razones: 1. La medicina interna propone como concepción fundamental la visión integral del paciente; 2. El funcionamiento de la mente normal y patológica se fundamenta en principios biológicos; 3. La ansiedad y la depresión son las manifestaciones emocionales más frecuentes en la práctica médica, presentándose como desórdenes primarios o como condiciones asociadas a otros desórdenes psiquiátricos y enfermedades médicas (incluyendo a sus tratamientos), o que resultan del impacto emocional de las enfermedades médicas y quirúrgicas. La referencia al psiquiatra debe hacerse en: depresión severa, respuesta terapéutica insatisfactoria, evidencia de psicosis o ideación suicida. En la depresión la herramienta básica es una relación médico-paciente sólida, que garantice la integridad y la libertad del paciente y preserve el secreto profesional, que adquiere especial relevancia al abordar los sentimientos, las emociones y la conducta humana. Aunque útiles, las pruebas y escalas de la depresión no sustituyen a la entrevista personal con el paciente, que permite apreciar el ánimo depresivo y la anhedonia, resultantes de la desolación y el estado de indefensión que abruma al paciente. En la manía, extremo opuesto del espectro del ánimo, la agitación, el lenguaje expansivo y grandilocuente y la irritabilidad, pueden acompañar a la irracionalidad psicótica. Las anormalidades de los neurotransmisores norepinefrina y serotonina juegan un rol mayor en los desórdenes del ánimo, siendo sus niveles y efectos, poco activos en la depresión e hiperactivos en la manía. Los pacientes con depresión mayor y buena parte de los pacientes con depresión menor crónica, ameritan tratamiento con antidepresivos y psicoterapia. La terapia electroconvulsiva puede tener indicación en la depresión refractaria, en la ideación suicida aguda y en las psicosis concurrentes sin respuesta a los antipsicóticos. En la manía, los estabilizadores del ánimo, litio, carbamazepina y valproato, son utilizados solos o en combinación con antidepresivos para prevenir las recurrencias. La manía aguda puede requerir tratamiento con neurolépticos. Abstract in english Depression, and adjoined anxiety, is the most frequent and intense psychological manifestation of human suffering, which in extreme cases could lead to suicide. Even though it could affect significantly the quality of life, interpersonal and social interactions and individual productivity, it astoni [...] shes that at primary care, only half of the cases are diagnosed, and only half of those diagnosed are actually treated. However, it is the responsibility of the Internist to recognize depression and treat it efficiently for the following reasons: 1. Internal medicine proposes the integral view of the patient as its fundamental conception; 2. Functioning of mind, both normal and pathological, is established in biological principles; 3. In medical practice, anxiety and depression are the most frequent emo- tional manifestations, either as primary disorders or as associated conditions to others psychiatric and medical diseases (including their treatments), or by the emotional impact of medical and surgical disorders. Psychiatric referral should be made in severe depression, unsatisfactory therapeutic response and evidence of psychosis or suicidal ideation. In managing depression, a solid medic

Italo, Marsiglia G.

2008-03-01

162

Importancia do conjugado arteria carotida interna-seio cavernoso Physiological importance of the internal carotid artery-cavernous sinus conjugate  

Directory of Open Access Journals (Sweden)

Full Text Available O autor considera necessário o conjugado anatômico artério-venoso representado pela artéria carótida interna e seio cavernoso, bem como o plexo venoso carotídeo que reveste a carótida interna dentro do canal carotídeo da porção petrosa do osso temporal. Julga que, além de proteger a parede vascular arterial nas hipertensões arteriais súbitas, possa contribuir no mecanismo de controle e regulação do fluxo sanguíneo carotídeo, por considerar diferentes as condições fisiológicas do seio cavernoso em relação aos demais seios venosos durais e o sistema venoso endocraniano; consequente de sua constituição cavernosa, diferente dos demais canais sanguíneos venosos, com fisiollogia venosa própria e funções diferentes. Procura assemelhá-los aos demais distritos do organismo em que existem plexos cavernosos nos quais a tensão venosa chega a grandes proporções, comparada às demais regiões em que não existe esta constituição morfológica. Estabelece a correlação resultante ao mecanismo de resistência cérebro-vascular do qual considera participar, diferindo dos demais seios durais conjugado artéria carotida-beio cavernoso e veias encefálicas. Ainda valoriza o sifão carotídeo fisiologicamente e julga que o mesmo participa da hemodinâmica quando o paciente se encontra caído (em plano horizontal com hipotensão arterial, favorecendo a chegada sanguínea ao cérebro, evitando a anóxia e descerebração consequente dentro de determinados limites, sendo mais um meio de defesa do organismo.The author considers of atmost importance the anatomical arterial-venous conjugate, represented by the internal carotid artery and the cavernous sinus, as well as the carotid venous plexus which covers the internal carotid artery within the petrous portion of the temporal bone. He believes that besides protecting the vascular arterial wall in acute episodes of hypertension, it can also contribute to the mechanism of the carotid blood flow. This is due to the fact that he considers the physiological conditions of the cavernous sinus in relation to the others dural venous sinuses and the endocranial venous system and its cavernous constitution, which differs from other venous blood canals with their own venous physiology and different functions. He attempts to compare it to the rest of the body areas where cavernous plexuses are localized and where venous pressure reachs high proportions, in comparison with the other regions without this morphologic constitution. He establishes a correlation resulting form the cerebro-vascular resistence mechanism, the participation of which he considers as differing from others dural sinuses and encephalic veins. He also emphasizes physiologically the carotid siphon and believes that it participates in the hemodynamics, when the patient is lying down (in a horizontal position with hypotension, facilitating the blood access to the brain, thus avoiding consequent anoxia and decerebration, within certain limits, and constituting an additional mean of body defense.

Milton Baggio Moreira

1977-12-01

163

Jugular bulb oxygen saturation and middle cerebral blood flow velocity during cardiopulmonary bypass.  

Science.gov (United States)

This study investigates changes of jugular bulb oxygen saturation (SjO2) measured by fiberoptic jugular bulb oximetry and changes of intracranial hemodynamics using transcranial Doppler sonography (TCD) during cardiopulmonary bypass (CPB) for coronary artery bypass graft (CABG) in 17 ASA III patients. Anesthesia was maintained with fentanyl, midazolam, and continuous infusion of etomidate. Hypothermic CPB (27 degrees C) was managed according to alpha-stat conditions. SjO2 (%) was measured by a fiberoptic catheter (Opticath F 5.5; Abbott Critical Care Systems) placed in the right jugular bulb via the right internal jugular vein. Mean blood flow velocity (Vmean, cm/s) was measured in the middle cerebral artery using a bidirectional 2-MHz TCD system (Transpect, Medasonics). Data were recorded continuously from the beginning to the end of the CPB. During cooling and hypothermia (27 degrees C); SjO2 and Vmean did not change compared with values at the start of CPB. However, with the beginning of rewarming, Vmean was increased 65% compared with stable hypothermia (27 degrees C). This increase in Vmean was associated with a 25% decrease in SjO2. Maximum desaturation occurred at a 36 degrees C jugular bulb temperature. During cooling and stable hypothermia, global oxygen balance and intracerebral perfusion seemed to be maintained. However, a major alteration in the balance of the cerebral oxygen supply and demand may occur in response to rewarming despite increases in Vmean. Findings suggest inadequate increases in CBF to meet cerebral metabolic demand. Further investigations need to validate these findings with biochemical techniques and neuropsychological tests. PMID:9100181

von Knobelsdorff, G; Hänel, F; Werner, C; Schulte am Esch, J

1997-04-01

164

The placement of an implantable chemoport via the external jugular vein as a primary route  

International Nuclear Information System (INIS)

To evaluate the usefulness and safety of the placement of an implantable chemoport via external jugular vein as a primary route for chemotherapy. Between January 2006 and June 2007, a total of 108 implantable chemoports were placed on 325 patients for chemotherapy via the external jugular vein as a primary route. We placed a 9.6 F single lumen chemoport using a surgical procedure (n = 89) and an interventional procedure (n = 19), and evaluated the duration of catheterization days and treatment complications. An implantable chemoport was successfully installed in all cases. Furthermore, the duration of catheterization ranged from 2 to 461 days (mean: 187 days, total catheter days: 21,994). In addition, a total of 85 chemoports were removed due to complications (n = 7) and termination of chemotherapy (n 78). A transient pulmonary air embolism occurring during a procedure was observed in one case. No pneumothorax or catheter malpositions were observed in the study subjects. Two chemoports were removed two days after implantation due to persistent tachycardia. In addition, five late complications occurred, which resulted in catheter occlusion (3 cases) (3%, 0.14/1000 catheter day) and infection in (2 cases) (2%, 0.09/1000 Catheter days). Lastly, no symptoms were attributed to a central vein thrombosis. The results of this study suggest that the implantation of chemoports via the external jugular vein is a safe procedure. Moreover, the selection of the external jugular vei the selection of the external jugular vein as a primary route is useful in determining chemoport insertion locations

165

Trombose de veia porta em crianças e adolescentes / Portal vein thrombosis in children and adolescents  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Apresentar uma revisão atualizada de trombose de veia porta na infância e adolescência, enfatizando o diagnóstico, suas complicações e tratamento. FONTE DOS DADOS: Foi realizada revisão da literatura, dos últimos 10 anos, através de pesquisa bibliográfica na Internet nos principais sites d [...] e busca médica, como o PubMed e MEDLINE, com enfoque na doença trombose de veia porta e suas repercussões clínicas. As principais palavras-chave e expressões pesquisadas foram: portal vein thrombosis, extra-hepatic portal vein obstruction, prognosis, children, portal hypertension, esophagogastric varices. Além disso, foram consultados os artigos citados nas referências dos trabalhos selecionados na pesquisa inicial e dos livros textos. SÍNTESE DOS DADOS: A trombose de veia porta é uma das causas mais comuns de hipertensão porta na infância. A apresentação clínica inicial pode ser através de episódios de hemorragia digestiva ou da presença de esplenomegalia em exame clínico de rotina. As principais complicações são a hemorragia digestiva, hiperesplenismo secundário à esplenomegalia, retardo de crescimento e biliopatia portal. O diagnóstico é realizado através da ultra-sonografia abdominal com Doppler. O tratamento é direcionado para as complicações, incluindo profilaxia primária e secundária de hemorragia digestiva, conseqüente à ruptura de varizes esofágicas, e derivações porto-sistêmicas, em casos selecionados. CONCLUSÕES:A trombose de veia porta é uma das causas mais importantes de hemorragia digestiva em crianças. Esses episódios acarretam impacto importante na qualidade de vida dos pacientes acometidos. Dessa forma, uma abordagem diagnóstica e terapêutica adequada é desejável na tentativa de se reduzir a morbimortalidade. Abstract in english OBJECTIVE: To review the literature on portal vein thrombosis in children and adolescents, focusing on its diagnosis, complications and treatment. SOURCE OF DATA: The medical literature of the past 10 years was reviewed using the PubMed and MEDLINE search engines, with major focus on portal vein thr [...] ombosis and its clinical outcomes. The following keywords or expressions were used for the web search: portal vein thrombosis, extra-hepatic portal vein obstruction, prognosis, children, portal hypertension, esophagogastric varices. Additionally, we also reviewed the articles cited in the references of the initially selected papers, as well as relevant textbooks. SUMMARY OF THE FINDINGS: Portal vein thrombosis is one of the most common causes of portal hypertension among children. The initial clinical manifestation is characterized either by episodes of upper gastrointestinal bleeding or by splenomegaly on routine clinical examination. The major complications include upper gastrointestinal bleeding, hypersplenism secondary to splenomegaly, growth retardation, and portal biliopathy. The diagnosis is made by abdominal Doppler ultrasonography. Treatment is targeted at the complications and includes primary and secondary prophylaxis against upper gastrointestinal bleeding (which results from the rupture of esophageal varices), and portosystemic shunting in selected cases. CONCLUSIONS: Portal vein thrombosis is one of the major triggers of upper gastrointestinal bleeding in children. Bleeding episodes have a remarkable effect on the quality of life of affected patients. Thus, appropriate diagnosis and treatment are needed in order to reduce morbidity and mortality.

Graziela C. M., Schettino; Eleonora D. T., Fagundes; Mariza L. V., Roquete; Alexandre R., Ferreira; Francisco J., Penna.

2006-06-01

166

Trombose de veia porta em crianças e adolescentes Portal vein thrombosis in children and adolescents  

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Full Text Available OBJETIVO: Apresentar uma revisão atualizada de trombose de veia porta na infância e adolescência, enfatizando o diagnóstico, suas complicações e tratamento. FONTE DOS DADOS: Foi realizada revisão da literatura, dos últimos 10 anos, através de pesquisa bibliográfica na Internet nos principais sites de busca médica, como o PubMed e MEDLINE, com enfoque na doença trombose de veia porta e suas repercussões clínicas. As principais palavras-chave e expressões pesquisadas foram: portal vein thrombosis, extra-hepatic portal vein obstruction, prognosis, children, portal hypertension, esophagogastric varices. Além disso, foram consultados os artigos citados nas referências dos trabalhos selecionados na pesquisa inicial e dos livros textos. SÍNTESE DOS DADOS: A trombose de veia porta é uma das causas mais comuns de hipertensão porta na infância. A apresentação clínica inicial pode ser através de episódios de hemorragia digestiva ou da presença de esplenomegalia em exame clínico de rotina. As principais complicações são a hemorragia digestiva, hiperesplenismo secundário à esplenomegalia, retardo de crescimento e biliopatia portal. O diagnóstico é realizado através da ultra-sonografia abdominal com Doppler. O tratamento é direcionado para as complicações, incluindo profilaxia primária e secundária de hemorragia digestiva, conseqüente à ruptura de varizes esofágicas, e derivações porto-sistêmicas, em casos selecionados. CONCLUSÕES:A trombose de veia porta é uma das causas mais importantes de hemorragia digestiva em crianças. Esses episódios acarretam impacto importante na qualidade de vida dos pacientes acometidos. Dessa forma, uma abordagem diagnóstica e terapêutica adequada é desejável na tentativa de se reduzir a morbimortalidade.OBJECTIVE: To review the literature on portal vein thrombosis in children and adolescents, focusing on its diagnosis, complications and treatment. SOURCE OF DATA: The medical literature of the past 10 years was reviewed using the PubMed and MEDLINE search engines, with major focus on portal vein thrombosis and its clinical outcomes. The following keywords or expressions were used for the web search: portal vein thrombosis, extra-hepatic portal vein obstruction, prognosis, children, portal hypertension, esophagogastric varices. Additionally, we also reviewed the articles cited in the references of the initially selected papers, as well as relevant textbooks. SUMMARY OF THE FINDINGS: Portal vein thrombosis is one of the most common causes of portal hypertension among children. The initial clinical manifestation is characterized either by episodes of upper gastrointestinal bleeding or by splenomegaly on routine clinical examination. The major complications include upper gastrointestinal bleeding, hypersplenism secondary to splenomegaly, growth retardation, and portal biliopathy. The diagnosis is made by abdominal Doppler ultrasonography. Treatment is targeted at the complications and includes primary and secondary prophylaxis against upper gastrointestinal bleeding (which results from the rupture of esophageal varices, and portosystemic shunting in selected cases. CONCLUSIONS: Portal vein thrombosis is one of the major triggers of upper gastrointestinal bleeding in children. Bleeding episodes have a remarkable effect on the quality of life of affected patients. Thus, appropriate diagnosis and treatment are needed in order to reduce morbidity and mortality.

Graziela C. M. Schettino

2006-06-01

167

Trombose da veia de Galeno: relato de caso Galen vein thrombosis: case report  

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Full Text Available A trombose venosa cerebral (TVC é doença vascular com diferentes manifestações clínicas e várias causas possíveis (locais, sistêmicas ou idiopáticas. A trombose da veia de Galeno (TVG é causa rara de TVC e geralmente está associada a alguma malformação vascular. Relatamos o caso de uma paciente de 16 anos que apresentou TVG sem malformação vascular, porém associada a trombose de seio reto e infarto venoso talâmico. Discutem-se também aspectos importantes do diagnóstico clínico, radiológico e laboratorial da TVC.Cerebral venous thrombosis (CVT is a vascular disease with many clinical manifestations and possible etiologies (local, systemic or idiopathic. Galen vein thrombosis (GVT is a rare cause of CVT and usually it is associated with some vascular malformation. We report a case of a 16 years old female patient with GVT without vascular malformation, but associated with straight sinus thrombosis and venous thalamic infarct. Relevant aspects of the clinical, radiological and laboratory diagnosis of CVT are also discussed.

Marcio Chaves Pedro Marques

2003-06-01

168

Válvulas da veia braquial comum: estudo anatômico Valves of the common brachial vein: anatomical study  

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Full Text Available CONTEXTO: Boa parte das insuficiências venosas é devida à incompetência de suas válvulas. Como uma das alternativas cirúrgicas, temos os enxertos venosos valvulados no segmento insuficiente. OBJETIVO: Descrever a anatomia das válvulas da veia braquial comum. MÉTODOS: Foram selecionados 30 cadáveres do sexo masculino, independentemente de raça, que tinham seus membros superiores articulados ao tronco. Os mesmos estavam formolizados e foram mantidos em conservação com solução de formol a 10%. Utilizamos como critério de exclusão a existência de desarticulação de um dos membros ou de alterações deformantes em topografia das estruturas estudadas. RESULTADOS: O número total de válvulas identificadas foi de 28 em membro superior direito e de 33 em membro superior esquerdo, sendo 15 no segmento proximal direito e 21 no segmento proximal esquerdo. Mais de 91% das válvulas foram do tipo bicúspide e parietal. CONCLUSÃO: Conclui-se que a veia braquial comum apresenta freqüentemente válvulas do tipo bicúspide e parietal.BACKGROUND: A great part of venous insufficiencies is due to valve incompetence. Valved venous grafts in the insufficient segment are a surgical alternative. OBJECTIVE: To describe the anatomy of the common brachial vein valves. METHODS: We used 30 male corpses of varied races with their upper limbs articulated to the trunk. They were preserved in formol and fixed in a 10% formol solution. Exclusion criteria were presence of disarticulation in one limb or deforming alterations in the topography of assessed structures. RESULTS: The total number of identified valves was 28 in the right arm and 33 in the left arm, 15 of them in the right proximal segment and 21 in the left proximal segment. More than 91% of the valves were bicuspid and parietal. CONCLUSION: We conclude that the common brachial vein often presents bicuspid and parietal valves.

Carlos Adriano Silva dos Santos

2007-03-01

169

A utilização da artéria torácica interna aumenta a mortalidade hospitalar do paciente coronariano idoso revascularizado? / Does the use of the internal thoracic artery enhance the nosocomial mortality of the elderly revascularized patient?  

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Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese No InCor, foi elaborado um protocolo para avaliar se o emprego da artéria torácica interna alterava a mortalidade hospitalar nos pacientes coronarianos idosos (idade > 70 anos), submetidos a revascularizaçáo isolada, eletiva do miocárdio. No protocolo foram incluídos parâmetros clínicos, hemodinâmic [...] os, radiológicos, operatórios e de pós-operatório. Foram analisados 100 pacientes consecutivos, com observações completas, em estudo prospectivo. A análise estatística foi realizada pelo teste de X² de Pearson. Concluímos que houve diferença estatística entre os grupos comparados e que a mortalidade hospitalar foi maior no grupo de pacientes nos quais se utilizou o enxerto de veia safena autógena. Atribuiu-se ao cirurgião, como triador, a obtenção de tais resultados, utilizando a artéria torácica interna naqueles pacientes em melhor estado geral. Abstract in english At the Heart Institute, we performed a study to evaluate if the internal thoracic artery modified the nosocomial mortality of elderly coronary patients (age 70 years), submitted to elective isolated revascularization of the myocardium. Clinical, hemodynamic, radiologic, operative and postoperative p [...] arameters were included in the protocol. In a prospective study one hundred consecutive patients, with complete observations were analysed. The statistical analysis was performed using Pearson's X² test. The results of this study showed that there was a statistically significant difference between the groups, the nosocomial mortality being higher in that in which autogenous saphenous vein grafts were used. The role of the surgeon as a screener regarding obtention of results is also discussed.

José Carlos R, Iglézias; Luís Alberto, Dallan; Domingos D, Lourenço Filho; Hélio Antônio, Fabri; Antônio F, Ramires; Protásio Lemos da, Luz; Sérgio Almeida de, Oliveira; Fúlvio, Pileggi; Adib D, Jatene.

1991-08-01

170

A utilização da artéria torácica interna aumenta a mortalidade hospitalar do paciente coronariano idoso revascularizado? Does the use of the internal thoracic artery enhance the nosocomial mortality of the elderly revascularized patient?  

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Full Text Available No InCor, foi elaborado um protocolo para avaliar se o emprego da artéria torácica interna alterava a mortalidade hospitalar nos pacientes coronarianos idosos (idade > 70 anos, submetidos a revascularizaçáo isolada, eletiva do miocárdio. No protocolo foram incluídos parâmetros clínicos, hemodinâmicos, radiológicos, operatórios e de pós-operatório. Foram analisados 100 pacientes consecutivos, com observações completas, em estudo prospectivo. A análise estatística foi realizada pelo teste de X² de Pearson. Concluímos que houve diferença estatística entre os grupos comparados e que a mortalidade hospitalar foi maior no grupo de pacientes nos quais se utilizou o enxerto de veia safena autógena. Atribuiu-se ao cirurgião, como triador, a obtenção de tais resultados, utilizando a artéria torácica interna naqueles pacientes em melhor estado geral.At the Heart Institute, we performed a study to evaluate if the internal thoracic artery modified the nosocomial mortality of elderly coronary patients (age 70 years, submitted to elective isolated revascularization of the myocardium. Clinical, hemodynamic, radiologic, operative and postoperative parameters were included in the protocol. In a prospective study one hundred consecutive patients, with complete observations were analysed. The statistical analysis was performed using Pearson's X² test. The results of this study showed that there was a statistically significant difference between the groups, the nosocomial mortality being higher in that in which autogenous saphenous vein grafts were used. The role of the surgeon as a screener regarding obtention of results is also discussed.

José Carlos R Iglézias

1991-08-01

171

Comunicação interna numa empresa de serviços / Internal communication of a service company / Comunicación interna en una empresa de servicios  

Scientific Electronic Library Online (English)

Full Text Available SciELO Portugal | Language: Portuguese Abstract in portuguese De acordo com os teóricos do campo da Comunicação Organizacional, a comunicação interna acaba por afetar o desempenho das organizações. Deste modo, o presente artigo procura efetuar uma análise, por intermédio da revisão bibliográfica e de um estudo de caso realizado numa empresa de serviços partilh [...] ados, à comunicação interna e identificar os aspetos da comunicação que necessitam ser otimizados. Os resultados alcançados permitiram contribuir para melhorar as práticas da comunicação desta organização: segmentação do público interno, promover a comunicação interna e reajuste da política de comunicação são algumas das sugestões para o seu bom desempenho. Abstract in spanish De acuerdo con los teóricos del campo de la Comunicación Organizacional, la comunicación interna acaba por afetar el desempeño de las organizaciones. En este sentido, el presente artículo busca efetuar un análisis, através de la revisión bibliográfica y de un estudio de caso realizado en una empresa [...] de servicios compartidos, sobre la comunicación interna, e identificar los aspetos de la comunicación que necesitan ser otimizados. Los resultados alcanzados permitirán contribuir para mejorar las prácticas de la comunicación de esta organización: segmentación del público interno, promover la comunicación interna y el reajuste de la política de comunicación son algunas de las sugerencias para un buen desempeño. Abstract in english According with the theoretical specialists in the field of Organizational Communication internal communication ultimately affects the organizational performance. This study aimes to analyze, through a bibliographical revision and a case study realized in a shared services company, the internal commu [...] nication and identify the need optimizations. The results obtained allowed a contribution to improvements in the practice of communication for this company: audience segmentation, promotion of internal communication and the readjustment of internal communication policy are just some suggestions for a better performance.

Marlene, Vieira; Adilson, Marques; Eduardo, Correia.

2013-09-01

172

Análise radiológica da veia cava caudal em ratos Wistar / Radiologic analyses of caudal vein in Wistar rats  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Apresentar um método de estudo angiográfico da veia cava caudal em ratos. MÉTODOS: Foram utilizados 24 ratos Wistar machos, com peso entre 300 a 350 gramas. Os animais foram operados com anestesia geral, utilizando-se injeção intraperiotoneal da solução de Cloridrato Ketamina e Cloridrato [...] de 2-(2,6- xilidino) -5,6- dihidro-4H-1,3-tiazina. O contraste iodado foi injetado na veia dorsal do pênis do rato, utilizando uma agulha de calibre 21 acoplada ao sistema Butterfly® de infusão. O método de cavografia foi testado, no 15º dia de pós-operatório, em três grupos de 6 animais. O Grupo I foi o controle. Nos grupos II e III os animais foram submetidos respectivamente à ligadura da veia cava caudal acima e abaixo da desembocadura das veias íleo-lombares. No grupo IV à ligadura da veia ilíaca direita. RESULTADOS: Os exames flebográficos realizados permitiram observar a anatomia e a perviedade das veias que formam o sistema cava, e a circulação colateral desenvolvida, de todos os animais estudados. CONCLUSÃO: A cavografia por via peniana, permite a visibilidade das vias ilíacas e cava caudal, bem como a circulação colateral desenvolvida, em ratos machos. Abstract in english PURPOSE: To present an angiographic method, to visualize the cava and iliac veins in rats, emphasizing the colateral circulation, developed after interrupting the venous flow. METHODS: Twenty four male Wistar rats were studied, weighting 300 to 350g. the access used to injection of the iodined contr [...] ast, necessary to the radiologic study, was the dorsal vein of the penis. The method of cavography was tested at the 15th postoperative day, in three groups of six animals. RESULTS: The group I is control. In groups II and III the animals were submitted respectively of ligature of the caudal vena cava above and below of the iliolumbar veins. In group IV they were submitted to the ligature of the right iliac vein, besides of control group that was not operated. CONCLUSION: The cavography with the injection in the penile vein, is capable of viewing the iliac vein and caudal vena cava, as well as the colateral circulation developed in cases the blood flow was interrupted in these vessels.

Luciano Rodrigues, Schmidt; Edson José, Cardoso; Rogério Rodrigues, Schmidt; Carlos Alberto Justo e, Silva; Armando José, d' Acampora.

2004-10-01

173

Kindliche Aphasie nach Infarkt der Capsula interna links mit Stammganglienbeteiligung  

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Vorgestellt wird der Krankheitsverlauf eines Jungen, dessen Allgemein- und Sprachentwicklung nach unauffälliger Schwangerschaft und Spontangeburt zunächst normal verlief. Im Alter von 1;06 Jahren erlitt das Kind einen linksseitigen Infarkt der Capsula interna mit Beteiligung der dorsalen Stammganglien. Die kernspintomographischen und dopplersonographischen Untersuchungen ergaben keinen Hinweis für einen Gefäßverschluss der Arteria cerebri media oder einen raumfordernden Prozess. Infolge ...

Scharfenberger, M.; Keilmann, A.; Gross, M.

2003-01-01

174

Bilateral breast swelling secondary to superior vena cava obstruction and subclavian vein thrombosis / Edema bilateral das mamas secundário a obstrução da veia cava superior e trombose de veia subclávia  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese A síndrome da veia cava superior é definida por um conjunto de sinais e sintomas secundários a uma obstrução da veia cava superior, causada principalmente por neoplasias malignas. Este relato de caso demonstra uma manifestação clínica incomum dessa síndrome, o edema bilateral das mamas, e destaca a [...] importância do conhecimento dos sinais mamográficos de doenças sistêmicas. Abstract in english Superior vena cava syndrome is defined by a set of signs and symptoms secondary to superior vena cava obstruction caused principally by malignant diseases. The present report describes the case of an unusual clinical manifestation of this syndrome with bilateral breast swelling, and emphasizes the r [...] elevance of knowledge on mammographic signs of systemic diseases.

Ariadne Mayumi, Yamada; Ana Lucia Kefalas Oliveira, Melo; Gesner Pereira, Lopes; Genesio Borges de, Andrade Neto; Valesca Bizinoto, Monteiro; Renato Santos, Soares.

2013-07-01

175

Angiography and clinical analysis of intracranial venous sinus in jugular foramen  

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Full Text Available Background By analyzing the digital subtraction angiography (DSA of intracranial venous sinus in jugular foramen segment, this article investigates the reasons for difficulty or failure of stent implanting in intracranial venous sinus, and attempts to formulate the clinical index, which can predict the difficulty of venous sinus stenting so as to improve the success rate of stent implantation. Methods All of 118 patients treated with venous sinus stent angioplasty were analyzed retrospectively, among whom 87 cases were diagnosed as cerebral venous stenosis and intracranial hypertension, and 31 patients were diagnosed as intractable pulsatile tinnitus caused by venous sinus stenosis. All patients received thrombolysis, anticoagulant and antiplatelet agents, and stent was implanted since the symptoms were not relieved. The two turning angles and diameter of cerebral venous sinus in the jugular foramen were measured to analyze their impact on stent implantation. Results Stent implantation of 115 cases were successful, while 3 patients did not complete the surgery due to the difficulty of stent implanting. The cerebral venous sinus in the jugular foramen was a transitional structure between the sigmoid sinus and internal jugular vein. Lateral view of angiography suggested "N" shape. The sum of two turning angles of venous sinus of 115 patients was (120.11± 30.32°, and the diameter of venous sinus was (5.10 ± 1.12mm. The sum of two turning angles of 3 patients who failed to implant stent was (86.37 ± 10.72°, and the diameter of venous sinus was (5.11 ± 0.37 mm. There were statistically significant differences between the angles of two groups (t = 23.420, P = 0.001, but no significant differences between the diameters of two groups ( t = 7.210, P = 0.352. Conclusion Lateral view of angiography suggested "N" shape of venous sinus in the jugular foramen. Difficulty of stent embedding would be caused by too small turning angles of venous sinus in the jugular foramen. However, the diameter of venous sinus did not influence the sugery ofstent implantation.

GE Ai-li

2013-03-01

176

Drenagem anômala de veia pulmonar inferior direita em veia cava inferior associada a apêndice hepático intracardíaco Anomalous drainage of the right inferior pulmonary vein into the inferior vena cava associated to intrathoracic hepatic appendix  

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Full Text Available Descreve-se o caso de uma paciente de 61 anos de idade, com drenagem anômala de veia pulmonar inferior direita em veia cava inferior, associada a apêndice hepático intratorácico, herniado através de fenda no diafragma. A correção cirúrgica foi realizada por anastomose direta da veia anômala com o átrio esquerdo, pela redução do apêndice hepático para a cavidade abdominal e, finalmente, pelo fechamento do defeito diafragmático. O pós-operatório decorreu sem qualquer complicação. Os autores chamam a atenção para a raridade do caso.The authors present a case of a 61-year-old woman with anomalous drainage of the right inferior pulmonary vein into the inferior vena cava associated to an intrathoracic hepatic appendix herniated through a diaphragmatic defect. Surgical correction was obtained by direct anastomosis of the anomalous vein to the left atrium, reduction of the hepatic appendix to the abdominal cavity and closure of the diphragmatic defect. The postoperative course was unevenftul. The rarity of this condition is stressed.

Carlos R Moraes

1988-08-01

177

Leiomiossarcoma da veia cava inferior: relato de caso / Leiomyosarcoma of the inferior vena cava: a case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Relatamos um caso de paciente do sexo feminino, 48 anos, com quadro clínico de dor abdominal de moderada intensidade e abaulamento do abdome. Ao exame físico constatou-se massa abdominal palpável. A tomografia computadorizada mostrou volumosa massa retroperitoneal, com realce heterogêneo e íntima re [...] lação com a veia cava inferior. Realizou-se ressecção em bloco da massa e do segmento invadido da veia cava. A histologia revelou leiomiossarcoma. Abstract in english The authors report a case of a 48 year-old female patient with moderate abdominal pain and bulging in the abdomen. Physical examination demonstrated the presence of a palpable abdominal mass. Computed tomography showed a heterogeneously enhancing retroperitoneal mass in close contact with the inferi [...] or vena cava. En bloc resection of the mass and of the attached vena cava segment was performed. Histological analysis revealed leiomyosarcoma.

Rafael Lemos, Nascif; Ana Graziela Santana, Antón; Gabriel Lacerda, Fernandes; George Caldas, Dantas; Vinícius de Araújo, Gomes; Marcelo Ricardo Canuto, Natal.

2014-12-01

178

Continuous monitoring of jugular bulb oxygen saturation in comatose patients--therapeutic implications.  

Science.gov (United States)

Comatose patients run a high risk of developing cerebral ischaemia which may considerably influence final outcome. It would therefore be extremely useful if one could monitor cerebral blood flow in these patients. Since there is a close correlation between the arteriovenous difference of oxygen and cerebral blood flow, it was a logical step to place a fiberoptic catheter in the jugular bulb for continuous measurement of cerebrovenous oxygen saturation. We have monitored cerebral oxygenation in 54 patients, comatose because of severe head injury, intracerebral haemorrhage or subarachnoid haemorrhage. Normal jugular venous oxygen saturation (SJVO2) ranges between 60 and 90%. A decline to below 50% is considered indicative of cerebral ischaemia. Spontaneous episodes of desaturation (SJVO2 oximetry is expected to contribute to a better outcome by enabling timely detection and treatment of insufficient cerebral perfusion. PMID:7668132

Schneider, G H; von Helden, A; Lanksch, W R; Unterberg, A

1995-01-01

179

Absence of retromandibular vein associated with atypical formation of external jugular vein in the parotid region.  

Science.gov (United States)

Veins of the head and neck exhibiting anatomical variations or malformations are clinically significant. Anatomical variation in the external jugular vein is very common. However, anatomical variation in the retromandibular vein is rare. In this paper, we report a rare case of complete absence of the retromandibular vein. In the absence of the retromandibular vein, the maxillary vein divided into anterior and posterior divisions. The posterior division joined the superficial temporal vein to form an atypical external jugular vein, and the anterior division joined the facial vein to form an anonymous vein. In clinical practice, radiologists and surgeons use the retromandibular vein as a guide to expose the branches of the facial nerve during superficial parotidectomy. Therefore, absence of the retromandibular vein is a hurdle during this procedure and may affect the venous drainage pattern from the head and neck. PMID:24987551

Patil, Jyothsna; Kumar, Naveen; Swamy, Ravindra S; D'Souza, Melanie R; Guru, Anitha; Nayak, Satheesha B

2014-06-01

180

Preoperative trans-jugular porto-systemic shunt for oncological gastric surgery in a cirrhotic patient.  

Science.gov (United States)

Abdominal surgery in cirrhotic patients with portal hypertension is associated with high incidence of disease and mortality. In these patients, oncological gastric procedures with lymph-nodes dissection show much higher complication rates than in normotensive portal vein patients. Thus, normalization of portal vein pressure may be a favorable determinant factor to reduce complications. We report a case of a patient with hepatitis C virus-related hepatic cirrhosis, esophageal varices, portal hypertension and gastric cancer. We demonstrated the efficacy of a preoperative trans-jugular porto-systemic shunt to perform oncological radical resection more safely. We retained preoperative the trans-jugular porto-systemic shunt in the patients with elevated portal pressure and gastric cancer to perform a gastrectomy more safely and to decrease morbidity and mortality of these cases. PMID:25624736

Liverani, Andrea; Solinas, Luigi; Di Cesare, Tatiana; Velari, Luca; Neri, Tiziano; Cilurso, Francesco; Favi, Francesco; Bizzarri, Giancarlo

2015-01-21

181

O papel dos exames de imagem no diagnóstico de trombose das veias esplâncnicas: relato de dois casos = The role of imaging exams in the diagnosis of thrombosis of the splanchnic veins: report of two cases  

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Conclusões: considerando as manifestações clínicas vagas da trombose de veias esplâncnicas, os exames de imagem, em especial a tomografia computadorizada, apresentam papel fundamental no seu diagnóstico.

Gonçalves, Caren Meneghetti et al.

2010-01-01

182

A 28-year-old pregnant woman with a very rare cause of jugular vein thrombosis.  

Science.gov (United States)

During pregnancy, venous thrombosis of the distal extremities is not uncommon. However, thrombosis in the upper part of the body, such as jugular vein thrombosis, is rare. If underlying causes such as ovarian hyperstimulation syndrome (OHSS) or septic thrombophlebitis (Lemierre's syndrome) are excluded, a serous borderline ovary tumour (BOT) must be considered and MR imaging of the abdomen could be performed to find a primary tumour mass. PMID:24829179

van den Broek, R; van Balen, M; Blaauwgeers, J; ten Wolde, M

2014-05-01

183

Dural Arteriovenous Fistula of Jugular Foramen with Subarachnoid Hemorrhage : Selective Transarterial Embolization  

OpenAIRE

We report the case of a 64-year-old man with dural arteriovenous fistula (DAVF) at right jugular foramen, presented as subarachnoid and intraventricular hemorrhage. The malformation was fed by only the neuromeningeal trunk of the right ascending pharyngeal artery and drained into the right lateral medullary veins craniopetally. Complete embolization was attained by selective transarterial glue injection, but patient showed lower cranial neuropathies. A 3-month follow-up angiogram still showed...

Byun, Jun Soo; Hwang, Sung Nam; Park, Seung Won; Nam, Taek Kyun

2009-01-01

184

Absence of retromandibular vein associated with atypical formation of external jugular vein in the parotid region  

OpenAIRE

Veins of the head and neck exhibiting anatomical variations or malformations are clinically significant. Anatomical variation in the external jugular vein is very common. However, anatomical variation in the retromandibular vein is rare. In this paper, we report a rare case of complete absence of the retromandibular vein. In the absence of the retromandibular vein, the maxillary vein divided into anterior and posterior divisions. The posterior division joined the superficial temporal vein to ...

Patil, Jyothsna; Kumar, Naveen; Swamy, Ravindra S.; D Souza, Melanie R.; Guru, Anitha; Nayak, Satheesha B.

2014-01-01

185

Migrating foreign body into the common carotid artery and internal jugular vein--a rare case.  

Science.gov (United States)

Ingested foreign bodies are a fairly common otorhinolaryngological emergencies encountered in Malaysia. The vast majority of these foreign bodies are fish bones which most commonly are impacted at the level of the cricopharynx. Rarely, however, a foreign body may migrate extraluminally and may even extrude subcutaneously. We report a rare occurrence where a fish bone not only migrated extraluminally, it was found to have migrated into the common carotid artery and the internal jugular vein and required surgical removal. PMID:19019597

Tang, Ing Ping; Singh, Shashinder; Shoba, Nair; Rahmat, Omar; Shivalingam, Shailendra; Gopala, Krishnan G; Khairuzzana, Baharudin

2009-06-01

186

Evolving Concepts in the Management of Jugular Paraganglioma: A Comparison of Radiotherapy and Surgery in 88 Cases  

OpenAIRE

Surgery for jugular paraganglioma (PGL) tumors often results in the acquisition of neurological deficits where none had been present previously. This has a significant impact on the quality of life. Radiotherapy is a recognized alternative therapy. The aim of this study was to compare the results of radiotherapy and surgery for the management of jugular PGL in terms of function and tumor control to define a treatment algorithm. We conducted a retrospective and comparative analysis of the trea...

Huy, Patrice Tran Ba; Kania, Romain; Duet, Miche?le; Dessard-diana, Bernadette; Mazeron, Jean-jacques; Benhamed, Rania

2009-01-01

187

Acute pulmonary emboli due to internal jugular vein thrombosis in papillary thyroid carcinoma, a case report and literature review  

OpenAIRE

Upper extremity deep vein thrombosis (UEDVT) is a life threatening rare condition. Among the patients with UEDVT, internal jugular vein is accepted as uncommon thrombosis. Since internal jugular vein thrombosis (IJVT) is mostly underdiagnosed, a great attention is needed to diagnose the disease. A 75-year-old woman with history of dyspnea on exertion (DOE), weight loss and anorexia with the stable vital sign and right-sided cervical adenopathy with suspected thyroid nodule was admitted. One d...

Ataiekhorasgani, Masoud; Jafaripozve, Nasim

2014-01-01

188

Jugular venous bulb oxyhemoglobin saturation during cardiac surgery: accuracy and reliability using a continuous monitor.  

Science.gov (United States)

Previous studies have demonstrated the feasibility of continuously monitoring jugular venous oxygen saturation (SjO2) with a fiberoptic catheter during hypothermic cardiopulmonary bypass (CPB). In the present study, with patients maintained at either moderate (28 degrees C) or mild (32-34 degrees C) hypothermia during CPB, SjO2 values obtained from a fiberoptic catheter were compared to intermittent samples analyzed by a co-oximeter. Twenty patients scheduled for elective coronary artery or valvular surgery had a 5.5 Fr Opticath catheter inserted into the left internal jugular bulb after induction of general anesthesia. The catheter was calibrated in vitro and in vivo according to the manufacturer's specifications. Catheter and co-oximetry SjO2 values obtained at four time points--1) pre-CPB, 2) target CPB temperature, 3) mid-rewarming, and 4) post-CPB--were compared using linear regression, Bland-Altman analysis, and Shrout-Fleiss interclass correlation coefficient analysis. These statistical methods revealed poor correlation between the catheter and co-oximetry SjO2 values: r = 0.44 by linear regression and 0.32 by interclass correlation coefficient analysis, and was unacceptably discrepant by Bland-Altman analysis. Oxyhemoglobin saturation values obtained continuously from a jugular venous bulb fiberoptic catheter during CPB may not accurately reflect true oxyhemoglobin saturation, and caution is warranted when interpreting SjO2 values obtained from a fiberoptic catheter during CPB. PMID:8610907

Trubiano, P; Heyer, E J; Adams, D C; McMahon, D J; Christiansen, I; Rose, E A; Delphin, E

1996-05-01

189

Subcutaneous Infusion Ports Via the Internal Jugular Vein: Single Center Experience  

Science.gov (United States)

Objective: Our purpose is to report and review the results and early complications of subcutaneous infusion port placement by our interventional radiology department. Materials and Methods: Three-hundred twenty-five subcutaneous infusion ports were placed in 320 patients between January 2005 and May 2010. Ports were placed under both general and local anesthesia. Five patients were catheterized twice. The internal jugular veins were used for access. Both ultrasono-graphic and fluoroscopic guidance were used in our interventions. Retrospectively, we evaluated the ports’ duration time. Results: Our technical success rate was 100% and only five complications occurred during port placement. The common carotid arteries were punctured in three patients but bleeding stopped ten minutes following withdrawal of the needle and artery compression. An air embolism occurred in two patients and both were successfully treated with good positioning and suctioning. Early catheter removal was required in five patients. One patient had a right internal jugular vein thrombosis, three patients had catheter occlusions and two patients had catheter fractures. The mean duration of catheter usage was 354 days (range: 2 to 1,478 days). Conclusion: Image guided placement of infusion ports has a greater success rate and lower early complication rate when compared with the unguided series. The right internal jugular vein is the first choice for infusion port access.

Karaman, Bulent; Andic, Cagatay; Oren, Nisa Cem; Battal, Bilal; Ustunsoz, Bahri

2010-01-01

190

Internal jugular vein thrombosis complicating cervicofacial infection of dental origin. Case report  

Directory of Open Access Journals (Sweden)

Full Text Available Septic thrombosis of the internal jugular vein or Lemierre’s syndrome is a rare form of metastatic septic thromboembolitis, typically involving superinfection with Fusobacterium Necrophorum, internal jugular vein thrombosis and remote septic emboli.CASE REPORT: A 49-year-old male was referred for a painful cervicofacial swelling on the left, obliteration of the buccal sulcus, as well as swelling of both the soft and hard palate and the floor of the mouth ipsilaterally, accompanied by severe trismus and difficulty in swallowing. The patient underwent intraoral and extraoral incisions and drainage of the affected anatomical spaces and tracheotomy. The patient’s clinical condition was steadily improving; following examination with CT scan,9 days post-op, internal jugular vein thrombosis was diagnosed. The patient was put on anticoagulants. The postoperative course continued uneventfully, and the patient was discharged. One month post-operatively the vessel was normal and anticoagulant treatment was discontinued.CONCLUSION: Since Lemierre’s syndrome is not only rare but also tends to be underdiagnosed when there is no obvious cause of sepsis, it should be included in the differential diagnosis if the patient’s general contition deteriorates in spite of the treatment.

Christos DENDRINOS

2012-08-01

191

Consistencia interna y estructura interna del cuestionario AUDIT en amerindios / Internal consistency and dimensionality of the AUDIT among Amerindians / Consistência interna e estrutura interna do questionário AUDIT em ameríndios  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in portuguese Objetivo: determinar a consistência interna e a dimensionalidade do AUDIT numa mostra de ameríndios que moram em Bogotá, Colômbia. Método: um estudo metodológico foi desenhado. Participaram 184 ameríndios, 99 homens e 85 mulheres. A idade média foi 32,0 anos (DP=14,0) e a escolaridade média, 6,1 ano [...] s (DP=3,7). Se estimaram as correlações corrigidas de cada ítem com o escore total, a consistência interna (alfa de Cronbach e ômega de McDonald) e a dimensionalidade (estrutura interna). Resultados: as correlações corrigidas entre os itens e o escore total foram encontradas entre 0,368 y 0,788. O AUDIT mostrou um alfa de Cronbach de 0,879; ômega de McDonald de 0,886; e um fator que explicou o 50,6% da variância. Conclusões: o AUDIT mostra excelente consistência interna e uma estrutura unidimensional em ameríndios que moram em Bogotá, Colômbia. Abstract in spanish Objetivo: determinar la consistencia interna y la dimensionalidad del AUDIT en una muestra de amerindios residentes en Bogotá, Colombia. Metodología: se diseñó un estudio metodológico. Participaron 184 amerindios, 99 hombres y 85 mujeres. La media para la edad fue 32,0 años (DE=14,0) y para la escol [...] aridad, 6,1 años (DE=3,7). Se estimaron las correlaciones corregidas de cada ítem con la puntuación total, la consistencia interna (alfa de Cronbach y omega de McDonald) y la dimensionalidad (estructura interna). Resultados: las correlaciones corregidas entre los ítems y la puntuación total se encontraron entre 0,368 y 0,788. El AUDIT mostró alfa de Cronbach de 0,879; omega de McDonald de 0,886; y un factor que explicó el 50,6% de la varianza. Conclusiones: el AUDIT muestra excelente consistencia interna y una estructura unidimensional en amerindios residentes en Bogotá, Colombia. Abstract in english Objective: to establish the internal consistency and dimensionality of the AUDIT among Colombian native Amerindians dwelling in Bogotá, Colombia. Method: a validation study was carried out. A total of 184 Amerindians, 99 men and 85 women. The mean of age was 32.0 years (SD=14.0), and mean of formal [...] scholarship, 6.1 years (SD=3.7). The correlations between items and total score, internal consistency (Cronbach alpha and McDonald omega), and dimensionality (factor structure) were computed. Results: the correlations between items and total score were between 0.368 and 0.788. The AUDIT showed Cronbach alpha of 0.879, McDonald omega of 0.886, and one-dimensional structure that accounted for 50.6% of the total variance. Conclusions: the AUDIT shows excellent internal consistency and one-dimension structure among Amerindians dwelling in Bogota, Colombia.

Alix Lorena, Medina; Nadia Milena, Arévalo; Sandra Dolores, Beltrán; Yuri Lizeth, Chavarro; Edwin, Herazo; Adalberto, Campo-Arias.

2014-04-01

192

Primera aproximación a la estructura interna de Plutón  

Science.gov (United States)

En el presente trabajo se propuso estudiar la estructura interna actual del planeta Plutón. El modelo que se planteó es del tipo de estructura no-diferenciada. Se incluyó como fuente de calor interna la radioactividad y como único mecanismo de transporte de la energía a la conducción. Se encontró que el planeta estaría compuesto por una mezcla de roca (65% en masa) y hielo de agua (35%). Este simple modelo permite inferir que una estructura más realista para Plutón debería incluir también a la convección como mecanismo de transporte. Ello además permitiría avanzar de modo más firme en el estado de diferenciación del planeta, que casi seguramente sea más complejo que el adoptado.

Steren, G. A.; Carranza, G. J.; Hubbard, W. B.

193

CT and MRI diagnosis of primary middle ear carcinoma invading jugular foramen  

International Nuclear Information System (INIS)

Objective: To study the CT and MRI features of primary middle ear carcinoma invading jugular foramen. Methods: CT and MRI images of 7 patients with surgically and pathologically confirmed primary middle ear carcinoma invading jugular foramen were analyzed retrospectively, including high resolution CT (HRCT) scan in 6 cases, CT enhancement scan in 1 case and MR plain and enhancement scan in 7 cases. Results: On HRCT, the soft tissue lesions mainly located in tympanum, tympanic sinus, the deep of external auditory canal and jugular foramen, and irregular 'moth-eaten' bone destruction could be seen, including the destruction of jugular foramen in 7 cases, eustachian tube in 7 cases, facial nerve canal in 4 cases, carotid artery canal in 4 cases, external auditory canal wall in 3 cases, auditory ossicles in 2 cases, vestibular window and horizontal semicircular canal in 1 case. CT plain scan showed the density of soft tissue mass was uniform in 4 cases with CT value of 30-55 HU, and heterogeneous in 2 cases, in which small pieces high density lesions could be found. CT enhancement scan in 1 case revealed moderate and homogeneous enhancement. On MR plain scan, the soft tissue masses with hazy margins could be seen, and compared to the gray matter of brain, the lesions were isointense or slightly hypointense on T1WI and isointense or slightly hyperintense on T2WI. The signal was homogeneous in 5 cases and inhomogeneous in 2 cases with small pieces of hypointensity both on T1WI and T2WI. After enhancement, the lesions were enhanced moderately and homogeneously in 5 cases and inhomogeneously in 2 cases with small pieces of non enhanced area. MRI also showed the erosion of carotid artery in 4 cases, sigmoid sinus in 1 case. Conclusion: The primary middle ear carcinoma can invade the jugular foramen area extensively, which may lead to misdiagnosis. HRCT can precisely depict the bone destruction and the invasion of the important anatomic structures in the primary middle ear carcinoma, and the destruction of eustachian tube can help to reduce misdiagnosis. MRI can more clearly show the extent of tumor and the mass signal and enhancement pattern. (authors)

194

Potencialidad creativa de la comunicación interna en el tercer sector  

Directory of Open Access Journals (Sweden)

Full Text Available Para diseñar la estrategia de comunicación interna en una organización sin ánimo de lucro, se encuentran algunas características propias que determinan unos modos concretos de comunicar, y la creatividad individual de las personas que hacen parte de la empresa se debe adaptar a las exigencias organizativas, de modo que éstas potencien dicha creatividad, sin dejar que los procesos la sofoquen o la adormezcan.

Jos\\u00E9 Mar\\u00EDa La Porte

2005-01-01

195

Estudo anatômico da artéria torácica interna aplicado à cirurgia cardiovascular  

OpenAIRE

Com a intensa utilização da artéria torácica interna (ATI) na operação de revascularização do miocárdio, estudamos sua anatomia com a finalidade de esclarecer aspectos morfológicos que possibilitem extender sua utilização e prevenir complicações pós-operatórias. Em 100 cadáveres foram retirados os plastrões esternocostais e injetadas as ATIs com Látex Neoprene. A ATI originou-se diretamente da artéria subclávica em 82,5% e de um tronco comum com outras artérias em 17,5%....

Henriquez-pino, Jorge A.; Gomes, Walter Jose?; Prates, Jose? Carlos; Buffolo, E?nio

1997-01-01

196

Transtympanaler Verlauf der A. carotis interna als Ursache pulssynchroner Ohrgeräusche  

OpenAIRE

Der erstmals von Max 1899 beschriebene ektope Verlauf der A. carotis interna (ACI) durch das Cavum tympani stellt eine seltene Anomalie dar. Die Genese ist auf eine embryogene Differenzierungsstörung der 3. Kiemenbogenarterie, aus der normalerweise die ACI entsteht, zurückzuführen. Die Symptome sind unspezifisch und beinhalten u.a. Schallleitungsschwerhörigkeit (47,7%), pulssynchroner Tinnitus (30%) oder seröse Otitis media (14%). Differentialdiagnostisch kommt ein Glomustumor, ein Bulbu...

Schro?ck, A.; Eichhorn, K.; Bootz, F.

2008-01-01

197

A crise interna do México e a Gripe Suína  

Directory of Open Access Journals (Sweden)

Full Text Available

Desgoverno econômico e narcotráfico põem

em questão a institucionalidade do Estado Mexicano,

enquanto a Gripe Suína alardeia a crise interna.

Pedro dos Santos de Borba

2009-05-01

198

Trombose da veia de Galeno: relato de caso / Galen vein thrombosis: case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese A trombose venosa cerebral (TVC) é doença vascular com diferentes manifestações clínicas e várias causas possíveis (locais, sistêmicas ou idiopáticas). A trombose da veia de Galeno (TVG) é causa rara de TVC e geralmente está associada a alguma malformação vascular. Relatamos o caso de uma paciente d [...] e 16 anos que apresentou TVG sem malformação vascular, porém associada a trombose de seio reto e infarto venoso talâmico. Discutem-se também aspectos importantes do diagnóstico clínico, radiológico e laboratorial da TVC. Abstract in english Cerebral venous thrombosis (CVT) is a vascular disease with many clinical manifestations and possible etiologies (local, systemic or idiopathic). Galen vein thrombosis (GVT) is a rare cause of CVT and usually it is associated with some vascular malformation. We report a case of a 16 years old female [...] patient with GVT without vascular malformation, but associated with straight sinus thrombosis and venous thalamic infarct. Relevant aspects of the clinical, radiological and laboratory diagnosis of CVT are also discussed.

Marcio Chaves Pedro, Marques; Leopoldo Antônio, Pires; Carlos Augusto, Damasceno; André Carvalho, Felício; Ângelo, Atala; Gláucio M., Franco.

2003-06-01

199

AFIRMAREA PREOCUP?RILOR PRIVIND PREZEN?A DIRECT? A PERSOANELOR FIZICE ÎN MEDIUL INTERNA?IONAL, O „SFIDARE” LA ADRESA CARACTERULUI „INTERETATIC” AL DREPTULUI INTERNA?IONAL?  

Directory of Open Access Journals (Sweden)

Full Text Available În doctrina dreptului interna?ional exist? p?reri bine fundamentate care refuz? s? accepte teoriaconform c?reia individul ar avea calitatea de subiect de drept interna?ional.Astfel, unii autori consider? c? persoanele fizice, chiar dac? au calitatea de autori ai unorcrime interna?ionale, nu pot avea, sub nici o form?, calitatea de subiecte de drept interna?ional.De asemenea, ?i în cazul când drepturile prev?zute în instrumentele interna?ionale se consider?a nu fi conferite direct indivizilor, acestea prev?zând obliga?ii ale statelor de a le asigura indivizilor. Seconsider?, deci, gre?it? ?i teoria c? individul ar fi subiect de drept interna?ional în sensul c? princonven?ii interna?ionale s-ar crea drepturi ?i obliga?ii pentru persoanele fizice, în cadrul sau în afaradrepturilor omului, ?i anume atunci când unele conven?ii interna?ionale se refer? la aspecte ale statutuluijuridic al persoanelor.

Ionut Andrei Barbu

2008-05-01

200

Spontaneous internal jugular vein thrombosis and recurrent laryngeal nerve palsy: a rare simultaneous presentation of an occult malignant neoplasm.  

Science.gov (United States)

Internal jugular vein thrombosis is an uncommon potentially life-threatening disorder caused by various conditions. Non-spontaneous internal jugular vein thrombosis is an uncommon condition associated in the pre-antibiotic area with deep-neck infections. Currently iatrogenic trauma to the internal jugular vein from catheterisation and repeated intravenous injections by drug abusers are the leading causes of thrombosis. Spontaneous internal jugular vein thrombosis may occur when there are no apparent pre-disposing mechanical or inflammatory causes although a few of these patients may harbour an occult malignant neoplasm. Hence, careful investigation and follow-up are vital. Thrombosis in Trousseau's syndrome is usually confined to the vascular system of the extremities and the viscera. However, secondary to the paraneoplastic hypercoagulable state, thrombosis can occur in the large veins of the head and neck region. We understand this to be the first case where spontaneous internal jugular vein thrombosis and ipsilateral recurrent laryngeal nerve paralysis were the only initial manifestations of an occult malignancy. PMID:9015435

Kalan, A; Tariq, M; Harar, R P; Gatland, D

1996-12-01

201

Fast Measurement of Blood T1 in the Human Jugular Vein at 3 Tesla  

OpenAIRE

Current T1 values for blood at 3T largely came from in vitro studies on animal blood or freshly drawn human blood. Measurement of blood T1 in vivo could provide more specific information, e.g. for individuals with abnormal blood composition. Here, blood T1 at 3T was measured rapidly (< 1min) in the internal jugular vein using a fast inversion-recovery technique in which multiple inversion time can be acquired rapidly due to constant refreshing of blood. Multi-shot EPI acquisition with flow...

Qin, Qin; Strouse, John J.; Zijl, Peter C. M.

2010-01-01

202

Characterization of putative 5-ht7 receptors mediating direct relaxation in Cynomolgus monkey isolated jugular vein.  

OpenAIRE

1. 5-Hydroxytryptamine (5-HT) receptors mediating contraction and relaxation are present in Cynomolgus monkey isolated jugular vein denuded of endothelium. 2. In the absence of spasmogen, alpha-methyl-5-HT and sumatriptan contracted the tissues with potency values (pEC50) of 6.8 (n = 2) and 6.4 +/- 0.1 (mean +/- s.e. mean, n = 3), respectively. In contrast, 5-HT caused an initial contraction (10 nM - 1 microM), followed by relaxation (1 microM - 32 microM). The contractile effect of alpha-met...

Leung, E.; Walsh, L. K.; Pulido-rios, M. T.; Eglen, R. M.

1996-01-01

203

Síndroma da veia cava superior como apresentação de neoplasia / Superior vena cava syndrome as tumour presentation  

Scientific Electronic Library Online (English)

Full Text Available SciELO Portugal | Language: Portuguese Abstract in portuguese A síndroma da veia cava superior (SVCS) é causada por uma obstrução/compressão gradual e insidiosa da veia cava superior, caracterizando -se por fácies pletórica, edema e ingurgitamento vascular do pescoço e parte superior do tronco. É geralmente tradutora de neoplasia, sendo o cancro do pulmão a su [...] a causa mais comum. Objectivo: Estudo retrospectivo dos internamentos no Hospital de S. João entre Janeiro de 1995 e Dezembro de 2006 por SVCS de etiologia a esclarecer com a caracterização clínica dos doentes e a avaliação de factores de prognóstico. Material e métodos: Foram seleccionados 60 doentes que à data de admissão não tinham causa para SVCS. Foram avaliados, entre outros, idade, sexo, exposição e carga tabágica, etiologia do SVCS, tratamento e sobrevivência global. Resultados: Dos doentes estudados, 87% apresentavam cancro do pulmão, sendo o tipo histológico mais comum o carcinoma pulmonar de pequenas células (CPPC), com 41% dos casos. Em 10% dos doentes foi diagnosticado linfoma não Hodgkin. Em relação aos factores de prognóstico estudados, verificou-se que a ausência de metastização, o diagnóstico histológico de linfoma, o bom estado geral e a ausência de consumo tabágico se correlacionam positivamente de forma significativa com a sobrevivência. Contrariamente, o diagnóstico de CPPC apresentou igualmente de forma significativa uma menor sobrevivência. Conclusão: Nesta série de doentes com SVCS como apresentação da doença observou -se uma sobrevivência significativamente menor nos casos de CPPC, doentes fumadores (especialmente com ? 40 UMA), naqueles com mau estado geral, bem como nos que apresentavam uma maior progressão da doença, com presença de metastização. Abstract in english Superior vena cava syndrome (SVCS) is characterised by gradual and insidious compression/obstruction of the superior vena cava (SVC). Upper chest and neck ingurgitation, plethoric face and oedema are the common symptoms/signs. It generally means the presence of neoplasm, namely lung cancer. Aim: Ret [...] rospective analysis of the patients admitted to S. João Hospital, Porto, Portugal, January 1995-December 2006 with SVCS without previous diagnosis. Patients, tumour characteristics and prognostic factors were studied. Material and methods: Data was collected by consulting the clinical files of 60 SVCS patients without previous diagnosis. Data was gathered on the patients’ demographic characteristics (age, gender, smoking habits), performance status, histology, staging, treatment and overall survival. Results: Lung cancer was observed in 87% of the patients. Small-cell lung cancer (SCLC) was the most frequent histological type; 41% of the patients. It is noticeable that 10% were diagnosed with non- Hodgkin’s lymphoma. In terms of prognostic factors analysed, the absence of metastasis, the lymphoma’s histological diagnosis, good performance status and non-smoker status were positively correlated with the survival rate. On the contrary SCLC was significantly correlated with a worse survival. Conclusions: In our analysis we concluded that SCLC, smokers and a poorer performance status as well as metastatic disease were unfavourable prognostic factors to SVCS as tumour presentation.

Nuno Filipe, Pires; António, Morais; Henrique, Queiroga.

2010-01-01

204

Distribuição comparativa dos glicosaminoglicanos em artérias e veias de diferentes mamíferos / Comparative distribution of glycosaminoglycans in arteries and veins of different mammals  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Foi realizada análise comparativa sobre a distribuição dos glicosaminoglicanos de artérias e veias em ratos, cachorros e humanos. Os nossos resultados demonstraram que dermatam sulfato foi o principal glicosaminoglicano encontrado tanto para as artérias quanto para as veias estudadas. Entretanto, a [...] proporção de dermatam sulfato foi maior nas veias do que nas artérias nas três espécies analisadas. Este aumento pode estar associado às diferenças estruturais e funcionais encontradas na parede destes dois tipos de vasos sangüíneos (nas veias a pressão sangüínea é significativamente mais baixa). Além disso, a quantidade total dos glicosaminoglicanos foi maior nas artérias do que nas veias, sendo as maiores concentrações encontradas nas aortas independentemente da espécie animal estudada. Estes achados abrem perspectiva para o melhor conhecimento das alterações das macromoléculas que possam estar relacionadas ao processo degenerativo vascular, especialmente nas transformações estruturais que as veias safenas sofrem, quando empregadas como enxertos na revascularização do miocárdio. Abstract in english A comparative analysis of the glycosaminoglycan distribution in arteries and veins of humans, rats and dogs was realized. The results showed that the glycosaminoglycan distribution of the arteries was similar to that of venous tissues, where dermatan sulfate was the main glycosaminoglycan found. How [...] ever, the proportion of dermatan sulfate is significantly greater in venous than in arterial tissues, in the three species. The total amount of the glycosaminoglycans was significantly higher in arteries than in veins, and the highest contents were found in the aortas. These increases may be associated with structural differences of the wall of these two types of blood vessels walls. The blood pressure is significantly lower in venous tissues and veins may exhibit less compressibility than arterial. These findings open perspectives for a better understanding of biochemical changes that could be related to the progressive degenerative vascular process, especially in the structural changes that saphenous veins undergo, when used as grafts in myocardial revascularization.

Mônica V., MARQUEZINI; Luís Alberto O., DALLAN; Olga M. S., TOLEDO.

1999-10-01

205

La fiabilidad en motores de combustión interna diesel estacionarios  

Directory of Open Access Journals (Sweden)

Full Text Available Se abordó el análisis de la fiabilidad de 8 motores de combustión interna diesel estacionarios destinados a la generación de electricidad. Su objetivo fundamental es conocer los fallos más característicos, la probabilidad de trabajo sin fallo y la vida útil de los equipos bajo las condiciones de explotación de Cuba, y, así poder conocer si el tiempo entre servicios recomendado por el fabricante es preciso modificar para una mejor utilización de estos equipos tan importantes para la vida social y económica del país.

Elio Rafael Hidalgo Batista

2011-01-01

206

Radiographic imaging of otitis media and interna in pigs  

International Nuclear Information System (INIS)

Middle and inner ear infections have been reported as a clinical entity in swine, other animal species and humans. In pigs, the anatomical-pathological and microbiological findings have been described. In this report, we describe radiographic findings in affected pigs. A total of 25 pigs with a head tilt and circling, as clinical signs of otitis media and interna, were examined. The majority were weaner-pigs with dyspnea or rhinitis. In radiographs, there was an increased opacity of the bulla tympanica, often accompanied by marginal destruction or thickening of the bulla wall. The radiographic findings confirmed the clinical diagnosis in each affected pig, but there were 5 false positive interpretations

207

Thrombosis as a complication of pulmonary-artery catheterization via the internal jugular vein: prospective evaluation by phlebography  

International Nuclear Information System (INIS)

A prospective study was made to determine, by angiography, the incidence of internal jugular-vein thrombosis in 33 consecutive critically ill patients who required temporary monitoring with Swan-Ganz catheters via the internal jugular vein. Twenty-two patients (66 per cent) had venographic or autopsy evidence of internal jugular-vein thrombosis. There was a statistically significant difference between the group of patients without thrombosis (Group 1) and the group with thrombosis (Group 2) with regard to the duration of hemodynamic compromise. Fifteen patients in Group 2 (as compared with eight in Group 1) were treated with heparin infusion, but nevertheless evidence of deep-vein thrombosis developd. Thus, it is concluded that venous thrombosis is a frequent complication of temporary monitoring with the Swan-Ganz catheter, especially in patients whose circulatory function has been impaired for a prolonged period

208

Is catheter rupture rare after totally implantable access port implantation via the right internal jugular vein? Report of a case.  

Science.gov (United States)

Catheter rupture after totally implantable access port (TIAP) implantation via the right internal jugular vein is thought to be very rare. We report a case of catheter rupture found 682 days after TIAP surgery in a 52-year-old woman with recurrent right breast cancer. It is possible that chronic stress at the flexure of the catheter induced by neck movements caused the catheter to rupture. Therefore, when inserting a TIAP via the right internal jugular vein, the site of venous puncture should be decided on carefully. Although a fracture of this type is rarely reported in the literature, the incidence of catheter injury of a TIAP inserted via the internal jugular vein at our institute is 1.8 %. This highlights the need to educate and caution medical staff and patients about preventing catheter fracture being caused by external factors. PMID:23732842

Nagasawa, Yoshinobu; Shimizu, Tomoharu; Sonoda, Hiromichi; Chou, Hirotomi; Mekata, Eiji; Tani, Tohru

2014-07-01

209

Paraneoplastic internal jugular vein thrombosis leading to diagnosis of bilateral ovarian ependymoma.  

Science.gov (United States)

Ovarian ependymomas are extremely rare tumors of the ovary. We present a case of a 67-year-old lady presented to us with swelling in the right side of neck for 2 months followed by pelvic pain, lower abdominal distention, and weight loss for 1 month. Her coagulation profile, blood chemistry, lipid profile, and tumor markers were within normal limits. Neck Doppler ultrasonography revealed thrombus in the right internal jugular vein and CT scan of the abdomen showed bilateral ovarian masses. Patient was subjected to debulking surgery for suspected ovarian cancer and microscopy revealed a highly cellular tumor composed of small cells with hyperchromatic, round-to-oval nuclei with scanty cytoplasm, and perivascular pseudorosettes. Diagnosis was confirmed by immunophenotype showing strong positivity to glial fibrillary acidic protein, estrogen receptors, and progesterone receptors. Patient was successfully managed with anticoagulants, adjuvant chemotherapy with BEP regimen, and letrozole. After ruling out other common conditions for thrombosis in this age group, this seems to be a paraneoplastic presentation of ovarian malignancy that preceded the diagnosis of ependymoma by 2 months. To the best of our knowledge this is the first case report in the world literature as "paraneoplastic internal jugular vein thrombosis leading to diagnosis of bilateral ovarian ependymoma." PMID:24963425

Madabhavi, Irappa; Patel, Apurva; Choudhary, Mukesh; Anand, Asha

2014-01-01

210

Paraneoplastic Internal Jugular Vein Thrombosis Leading to Diagnosis of Bilateral Ovarian Ependymoma  

Science.gov (United States)

Ovarian ependymomas are extremely rare tumors of the ovary. We present a case of a 67-year-old lady presented to us with swelling in the right side of neck for 2 months followed by pelvic pain, lower abdominal distention, and weight loss for 1 month. Her coagulation profile, blood chemistry, lipid profile, and tumor markers were within normal limits. Neck Doppler ultrasonography revealed thrombus in the right internal jugular vein and CT scan of the abdomen showed bilateral ovarian masses. Patient was subjected to debulking surgery for suspected ovarian cancer and microscopy revealed a highly cellular tumor composed of small cells with hyperchromatic, round-to-oval nuclei with scanty cytoplasm, and perivascular pseudorosettes. Diagnosis was confirmed by immunophenotype showing strong positivity to glial fibrillary acidic protein, estrogen receptors, and progesterone receptors. Patient was successfully managed with anticoagulants, adjuvant chemotherapy with BEP regimen, and letrozole. After ruling out other common conditions for thrombosis in this age group, this seems to be a paraneoplastic presentation of ovarian malignancy that preceded the diagnosis of ependymoma by 2 months. To the best of our knowledge this is the first case report in the world literature as “paraneoplastic internal jugular vein thrombosis leading to diagnosis of bilateral ovarian ependymoma.” PMID:24963425

Madabhavi, Irappa; Patel, Apurva; Choudhary, Mukesh; Anand, Asha

2014-01-01

211

Audiological signs in pediatric cases with dehiscence of the bony labyrinth caused by a high jugular bulb.  

Science.gov (United States)

Clinical findings were assessed in three pediatric cases of dehiscence of the bony labyrinth caused by a high jugular bulb (HJB). Two children had two dehiscent lesions, which included posterior semicircular canal dehiscence (PSCD) and vestibular aqueduct dehiscence (VAD). One child had VAD alone. Two subjects with PSCD, but not with VAD alone, had mixed hearing loss and showed wave motion of the baseline on tympanometry and acoustic reflex testing, and a reduced response on otoacoustic emission. These findings may reflect jugular venous pulsations transmitted through the PSC and represent characteristics of cases with PSCD caused by HJB. PMID:22226515

Sone, Michihiko; Katayama, Naomi; Naganawa, Shinji; Yoshida, Tadao; Teranishi, Masaaki; Nakashima, Tsutomu

2012-03-01

212

Aneurisma de veia poplítea: relato de caso e revisão da literatura Popliteal vein aneurysm: case report and literature review  

Directory of Open Access Journals (Sweden)

Full Text Available Os aneurismas venosos são raros, porém causam complicações tromboembólicas. Na maioria das vezes, são encontrados como achados de exame físico ou de imagem. Os aneurismas sintomáticos de veia poplítea são tratados por reparo cirúrgico, devido ao alto risco de recorrência de embolia pulmonar. A técnica mais utilizada é a aneurismectomia tangencial com venorrafia lateral. Na impossibilidade de se empregar esta técnica, faz-se a ressecção com reconstrução venosa. Os autores relatam o caso de uma paciente com aneurisma de veia poplítea, cujo diâmetro era de 44 mm, submetida à aneurismectomia tangencial e venorrafia lateral, com sucesso.Venous aneurysms are rare; however, they are potential causes of thromboembolism. Most cases are found as clinical examination or by imaging methods. Symptomatic aneurysms of the popliteal vein are treated by surgical repair due to the high risk of recurrent pulmonary embolism. The most widely used procedure is tangential aneurysmectomy and lateral venorrhaphy. If this technique is not possible, the aneurysm should be removed and venous reconstruction should be performed. The authors report the case of a patient with popliteal vein aneurysm measuring 44 mm in diameter which was successfully treated by tangential aneurysmectomy and lateral venorrhaphy.

Bruno Morisson

2011-03-01

213

Aneurisma de veia poplítea: relato de caso e revisão da literatura / Popliteal vein aneurysm: case report and literature review  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Os aneurismas venosos são raros, porém causam complicações tromboembólicas. Na maioria das vezes, são encontrados como achados de exame físico ou de imagem. Os aneurismas sintomáticos de veia poplítea são tratados por reparo cirúrgico, devido ao alto risco de recorrência de embolia pulmonar. A técni [...] ca mais utilizada é a aneurismectomia tangencial com venorrafia lateral. Na impossibilidade de se empregar esta técnica, faz-se a ressecção com reconstrução venosa. Os autores relatam o caso de uma paciente com aneurisma de veia poplítea, cujo diâmetro era de 44 mm, submetida à aneurismectomia tangencial e venorrafia lateral, com sucesso. Abstract in english Venous aneurysms are rare; however, they are potential causes of thromboembolism. Most cases are found as clinical examination or by imaging methods. Symptomatic aneurysms of the popliteal vein are treated by surgical repair due to the high risk of recurrent pulmonary embolism. The most widely used [...] procedure is tangential aneurysmectomy and lateral venorrhaphy. If this technique is not possible, the aneurysm should be removed and venous reconstruction should be performed. The authors report the case of a patient with popliteal vein aneurysm measuring 44 mm in diameter which was successfully treated by tangential aneurysmectomy and lateral venorrhaphy.

Bruno, Morisson; Jose Marcos Braz, Serafim; Edwal Balthazar dos, Santos; Davi Pinto, Colhen; Bruno Miana, Caiafa; Ronaldo, Carvalho.

2011-03-01

214

The search for valved conduit tissue grafts for adults (>22 mm: an ultrasonographic study of jugular vein diameters of horses and cattle  

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Full Text Available Abstract Background Natural heterologous valved conduits with a diameter greater than 22 mm that can be used for right ventricular outflow tract reconstruction in adults are not commercially available. The purpose of this study was to measure by ultrasonography the maximum diameter of the distended jugular veins of horses and cattle, respectively, to identify a population of animals that would be suitable for post-mortem collection of jugular veins at sizes greater than 22 mm. Methods The study population included 60 Warmblood horses, 25 Freiberger horses, 20 Brown Swiss cows, and 20 Holstein cows (including 10 Holstein and 10 Red Holstein. The maximum cross-sectional diameter of the distended jugular veins was measured at a location half-way between the mandibular angle and the thoracic inlet. The thoracic circumference (heart girth length was used as a surrogate of body size. The jugular vein diameters of the different populations were compared by analysis of variance and the association between heart girth length and jugular vein diameter was determined in each of the four study populations by linear regression analysis. Results There was considerable individual variation of jugular vein diameters within each of the four study populations. There was no statistically significant relationship between thoracic circumference and jugular vein diameter in any of the populations. The jugular vein diameters of Brown Swiss cows were significantly larger than those of any of the other populations. Warmblood horses had significantly larger jugular vein diameters compared to Freiberger horses. Conclusion The results of this study suggest that the production of bovine or equine xenografts with diameters of greater than 22 mm would be feasible. Differences between species and breeds need to be considered. However, prediction of the jugular vein diameter based on breed and heart girth length in an individual animal is inaccurate.

Jenni Rolf

2009-08-01

215

Trombose da artéria carótida interna devida a trauma penetrante no pálato mole: relato de caso  

OpenAIRE

Descrevemos caso de trauma penetrante na região oral em criança, evoluindo com oclusão da artéria carótida interna e déficit neurológico correspondente. A tomografia computadorizada e a ressonância nuclear magnética demonstram a oclusão completa da artéria carótida interna. Enfatizamos esta rara complicação de trauma oral, comum em crianças e discutimos os aspectos patogênicos.

BORGES GUILHERME; RAMINA RICARDO; FERNANDES YVENS BARBOSA; ZAMBELLI HELDER JOSÉ LESSA; MARQUES EDILSON LUIZ; MENEZES JOSÉ RIBEIRO; ZANARDI VERÔNICA; SANTOS STARLYNN FREIRE DOS

1999-01-01

216

Trombose da artéria carótida interna devida a trauma penetrante no pálato mole: relato de caso  

Directory of Open Access Journals (Sweden)

Full Text Available Descrevemos caso de trauma penetrante na região oral em criança, evoluindo com oclusão da artéria carótida interna e déficit neurológico correspondente. A tomografia computadorizada e a ressonância nuclear magnética demonstram a oclusão completa da artéria carótida interna. Enfatizamos esta rara complicação de trauma oral, comum em crianças e discutimos os aspectos patogênicos.

BORGES GUILHERME

1999-01-01

217

A simple procedure to secure an indwelling jugular vein catheter to the neck of cattle for repeated blood sampling.  

OpenAIRE

A procedure to secure a jugular vein catheter system to the neck of cattle is described. A wide-mouthed polypropylene bottle attached to a halter strap provided a secure container for the catheter. This device allowed convenient access to the catheter for repeated sampling and, apparently, reduced discomfort to the cattle.

Zalkovic, P.; Maclean, M. A.; Ambrose, D. J.

2001-01-01

218

The use of endovascular stent-grafts for the treatment of common carotid-internal jugular fistula.  

Directory of Open Access Journals (Sweden)

We report a case of a fistula between the common carotid artery and the internal jugular vein due to a hemodialysis catheter insertion. We managed the fistula by the insertion of a covered-stent at the common carotid artery, and completely sealed the fistula without immediate complications. We present this case to highlight this new successful method of treatment.

Mohammed A. Bawazeer

2006-01-01

219

Uso de biogás em motores de combustão interna  

Directory of Open Access Journals (Sweden)

Full Text Available

O biogás proveniente da digestão anaeróbia de resíduos sólidos ou líquidos constitui uma fonte de energia alternativa. Sua composição é uma mistura de gases onde o metano e o dióxido de carbono estão em maiores proporções. Os motores de combustão interna são muito utilizados por poderem operar com diferentes tipos de combustíveis tanto líquidos como gasosos. Para que o biogás possa ser utilizado como combustível, seja em motores, turbinas a gás ou microturbinas, é necessário identificar sua vazão, composição química e poder calorífico, parâmetros que determinam o real potencial de geração de energia elétrica.

Ana Beatryz Prenzier Suzuki

2011-04-01

220

Lesiones esplénicas en medicina interna / Splenic disorders in internal medicines  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish El bazo representa el mayor órgano linfopoyético, contiene el 25% de la masa linfoide total. Participa en la inmunidad celular y humoral e interviene en la renovación de los glóbulos rojos y en la eliminación de las bacterias. Las funciones esplénicas están reducidas cuando el bazo está ausente, lo [...] que implica entre otras complicaciones, una mayor susceptibilidad para padecer una sepsis por organismos encapsulados. Se presentan 6 casos clínicos ingresados en el servicio de Medicina Interna con patología esplénica y se hace una revisión del abordaje a realizar. El espectro de lesiones esplénicas en medicina interna es muy amplio. En ocasiones se puede sospechar patología esplénica por la historia clínica, la exploración física o por citopenias en los análisis. Disponemos de diversas pruebas complementarias para completar el estudio de dichas lesiones. En caso de duda diagnóstica se puede realizar esplenectomía siendo los diagnósticos más frecuentes la cirrosis hepática y el linfoma/leucemia. Abstract in english The spleen is the largest lymphopoietic organ, containing 25% of total lymphoid mass. It participates in cellular and humoral immunity and intervenes in the renovation of red cells and the elimination of bacteria. Splenic functions are reduced when the spleen is absent, which entails, amongst other [...] complications, greater susceptibility to suffering from sepsis due to encapsulated organisms. We present 6 clinical cases admitted to the Internal Medicine serve with splenic pathology and we make a review of the approach to be used. The spectrum of splenic lesions in internal medicine is very wide. On occasions, a splenic pathology can be suspected due to clinical history, physical exploration or because of cytopenias in the analyses. Different complementary tests are available for completing study of these lesions. A splenectomy can be carried out in case of diagnostic doubt, with the most frequent diagnoses being hepatic cirrhosis and lymphoma/leukaemia.

J., Rojo Álvaro; F.J., Anniccherico Sánchez; J.L., Alonso Martínez; S., Pérez Ricarte; J., Oteiza Olaso; J.M., Casas Fernández de Tejerina.

2014-04-01

221

External Carotid-Internal Jugular Fistula as a Late Complication After Carotid Endarterectomy: A Rare Case  

International Nuclear Information System (INIS)

A 66-year-old man presented with mild amnesia, progressive fatigue, ataxia, visual hallucinations, and debility. His past medical history included right-sided carotid endarterectomy performed elsewhere 6 years previously. Cranial magnetic resonance imaging showed left parieto-occipital arteriovenous malformation-like tortous vessels, venous congestion, and ischemic areas. Cerebral angiography showed right-sided compound external carotid artery-internal jugular vein (IJV) fistula, and distal occlusion of the right IJV. Transvenous embolization via contralateral IJV was performed, and the fistula, together with fistulous portion of the distal IJV, was sealed using coils. Two years later, patient is well with normal neurologic examination findings. The presence of an arteriovenous communication after vascular surgery is a serious complication with potential long-term effects and therefore should be diagnosed and treated as promptly as possible.

222

Unusual case of focal neck swelling: Phlebectasia of internal jugular vein with intracranial extension  

Science.gov (United States)

Internal jugular vein (IJV) phlebectasia is rare in occurrence and is frequently misdiagnosed and managed inappropriately. It commonly presents as a unilateral neck swelling which typically increases in size with valsalva maneuver. Although, the most common cause of a focal neck swelling, which increases in size with valsalva maneuver is laryngocele, the possibility of phlebectasia of IJV should always be borne in mind, especially in child. Owing to the rarity of this condition, a high index of suspicion is required to recognize the same and managed appropriately. We present a case of phlebectasia of the right IJV with intracranial extension and discuss its management. The case is being reported in view of its clinical rarity (the intracranial extension being extremely rare) and to highlight the available management strategies. PMID:25664271

Malik, Virender; Kumari, Abha; Murthy, TVSP

2015-01-01

223

Artéria radial versus veia safena para revascularização do miocárdio: metanálise (não houve diferença estatisticamente significante) / Radial artery versus saphenous vein to myocardial revascularization: meta-analysis (there is no statistically significant difference)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Comparar a efetividade do enxerto de artéria radial com o enxerto de veia safena para revascularização do miocárdio, em associação com a artéria torácica interna. MÉTODO: Realizou-se uma revisão sistemática da literatura, utilizando uma estratégia de busca de artigos aplicada às bases de d [...] ados da MEDLINE e LILACS. Dois pesquisadores independentes realizaram a seleção dos artigos identificados, avaliando criteriosamente a metodologia dos artigos considerados relevantes para o tema. Somente os ensaios clínicos controlados e randomizados com adequado sistema de aleatorização foram incluídos. Em todas as situações em que ocorreu discordância entre os pesquisadores, foi realizada uma reunião de consenso. Não foi estipulada restrição quanto ao período pós-operatório para avaliação angiográfica do enxerto, o vaso tratado cirurgicamente e as características dos pacientes incluídos. Os resultados são expressos como Risco Relativo (RR), com 95% de Intervalo de Confiança (CI), da comparação da efetividade entre a artéria radial e a veia safena. RESULTADOS: Com base nesses critérios foram incluídos três estudos. Não foi detectada diferença estatística entre a perviabilidade dos enxertos estudados (RR 0,53 [95% IC 0,13 - 2,18]). CONCLUSÃO: Apesar dos estudos serem de boa qualidade metodológica, não houve resultado estatisticamente significativo beneficiando um dos enxertos. O poder estatístico da metanálise é baixo. Portanto, são necessários novos ensaios clínicos controlados e randomizados, com tamanho de amostra adequado para detectar possíveis diferenças entre os tratamentos propostos. Abstract in english OBJECTIVE: To compare the effectiveness of radial artery graft with saphenous vein graft to myocardial revascularization, in association with the internal thoracic artery. METHODS: We made a systematic review of literature, using a strategy to search articles applied to MEDLINE and LILACS databases. [...] Two independent researchers have carried through the election of identified articles, evaluating carefully the methodology of articles considered excellent for the subject. Only the randomized controlled trials, with adjusted randomization system have been enclosed. All the situations where the researchers didn't agree there was a consensus meeting. It hasn't been stipulated restriction for postoperative period to graft angiographic evaluation, the vessel treated and enclosed patient's characteristics. The results have been expressed as Risk Relative (RR), with 95% of Confidence Interval (CI), to comparison the effectiveness between the radial artery and the saphenous vein. RESULTS: Based in these criteria three studies have been enclosed. We couldn't find statistic difference between grafts' patency studied (RR 0.53 [95% IC 0.13 - 2.18]). CONCLUSION: Despite of the studies have good methodological quality, we have not observed a result significant statistically benefiting one of the grafts. The statistical power of the meta-analysis is low, therefore, it's necessary more randomized controlled trials, with adjusted sample size to detect possible differences between the considered treatments.

Rafael Fagionato, Locali; Enio, Buffolo; Roberto, Catani.

2006-09-01

224

Dopplerfluxometria da veia hepática em pacientes com esteatose não alcoólica / Hepatic vein Doppler flowmetry in patients with nonalcoholic steatosis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Avaliar a correlação entre a dopplerfluxometria da veia hepática direita e o grau de esteatose, inflamação e fibrose à biópsia na doença hepática gordurosa não alcoólica. MATERIAIS E MÉTODOS: Foi realizada ultrassonografia com Doppler em 80 pacientes, sendo 40 portadores de doença hepática [...] gordurosa não alcoólica, também submetidos à biópsia. Quarenta controles normais saudáveis, sem fatores risco para doença hepática gordurosa não alcoólica foram submetidos a ultrassonografia com Doppler. O padrão ao Doppler da veia hepática direita foi classificado em trifásico, bifásico e monofásico. Os espécimes de biópsia foram classificados conforme o grau de esteatose, inflamação e fibrose. RESULTADOS: O fluxo foi trifásico em 38 (95%) dos controles e em 9 (56,3%) dos pacientes com esteatose discreta, enquanto nos com esteatose acentuada o padrão foi monofásico em 60%. Encontrou-se diferença significante na distribuição dos padrões ao Doppler (p Abstract in english OBJECTIVE: To evaluate the correlation between right hepatic vein Doppler flowmetry and degree of steatosis, inflammation and fibrosis at biopsy in nonalcoholic fatty liver disease. MATERIALS AND METHODS: Doppler ultrasonography was performed in 80 patients divided into two groups as follows: 40 pat [...] ients diagnosed with nonalcoholic fatty liver disease and also submitted to biopsy, and a control group including 40 healthy adults with no risk factor for nonalcoholic fatty liver disease. The Doppler waveform patterns of right hepatic vein were classified into triphasic, biphasic and monophasic. Biopsy specimens were classified according to the degree of steatosis, inflammation and fibrosis. RESULTS: Triphasic flow was observed in 38 (95%) patients of the control group and in nine (56%) patients with mild steatosis, whereas in patients with severe steatosis, the pattern was monophasic in 60%. A statistically significant difference was observed in the distribution of Doppler patterns (p

Valéria Ferreira de Almeida e, Borges; Angélica Lemos Debs, Diniz; Helma Pinchemel, Cotrim; Haroldo Luis Oliva Gomes, Rocha; Frederico Chaves, Salomão.

2011-02-01

225

La clínica y la Medicina Interna / Clinical and Internal Medicine  

Scientific Electronic Library Online (English)

Full Text Available SciELO Cuba | Language: Spanish Abstract in spanish Ante un panorama donde la Medicina Clínica y, particularmente, la Medicina Interna, enfrentan retos y dilemas que revisten características especiales en los momentos actuales, son muchos los que han estado preocupados porque estas condiciones afecten la esencia misma de nuestra profesión. Se definen [...] los elementos del acto médico. Se ratifica el importante papel del método clínico como el método científico aplicado a la atención de un paciente, así como los peligros de su aplicación incorrecta. Se perfilan las principales características de los "médicos hipocráticos" y los "médicos galénicos", como polos opuestos del actuar clínico en nuestros días. Se constata el aumento del número de médicos que se alejan de los enfermos y confían de manera creciente en los nuevos exámenes complementarios para sus diagnósticos. Se abordan la situación actual y las perspectivas de la Medicina Interna, los diferentes tipos de internistas existentes en el país, las potencialidades de los mismos y las cualidades que han de preservarse en el futuro. Se exponen sugerencias propias para alcanzar una medicina de calidad, más humanizada y menos costosa en el futuro. Se ratifica que la clínica y su método adquieren en nuestro tiempo un valor todavía mayor que en el pasado y que es nuestro deber como internistas educar, con el ejemplo y la palabra, en la utilización depurada y con excelencia del método clínico. Abstract in english In an scenario where Clinical Medicine, particularly, Internal Medicine faces the challenges and dilemmas that have special characteristics at present, many people have worried about the fact that these conditions could affect the very essence of our profession. The elements of the medical acts are [...] defined. The important role of the clinical method as the scientific method applied to the care of a patient, as well as the dangers of its wrong application is confirmed. The main characteristics of "Hippocratic Physicians" and "Galenic Physicians" as opposite poles of the present clinical acts are outlined. The increase in the number of doctors that leave their patients alone and trust in the new complementary tests for the diagnosis is verified. The current situation and the perspectives of Internal Medicine are addressed, as well as the different types of internists existing in the country, their potentialities and the qualities they should maintain in the future. Our own suggestions are given to achieve a high-quality medicine, more human and less expensive in the future. It is reaffirmed that Clinical Medicine and its method are currently acquiring a higher value than the one it had in the past and that, as internists, we should educate others, by example and word, in the refined and excellent use of the clinical method.

Alfredo, Espinosa Brito.

2013-09-01

226

Correlação entre o doppler da veia hepática direita com a biópsia transcutânea guiada pela ultrassonografia em hepatopatias Correlation between doppler of the right hepatic vein with ultrasound transcutaneous guided biopsy in liver diseases  

OpenAIRE

OBJETIVOS: Correlacionar os achados da biópsia transcutânea hepática guiada por ultrassonografia com os dados ultrassonográficos modo B e Doppler da veia hepática direita; comparar os padrões de onda entre os grupos de estudo (hepatopatas) e controle (sadios); e avaliar se o Doppler da veia hepática direita serve como marcador de hepatopatia crônica. MÉTODOS: Foram estudados 38 pacientes portadores de hepatopatia crônica comprovada por sorologia e biópsia (grupo de estudo) e dez pa...

Gleim Dias Souza; Luciana Rodrigues Queiroz; Carmen Australia Paredes Marcondes Ribas; Marcelo Mazza do Nascimento; Thelma Larocca Skare; Ronaldo Mafia Cuenca; Gustavo Henrique Soares Takano

2012-01-01

227

Isolamento das veias pulmonares para tratamento da fibrilação atrial paroxística: resultados clínicos após um único procedimento Pulmonary veins isolation to treat patients with refractory paroxysmal atrial fibrillation: clinical results after a single procedure  

OpenAIRE

OBJETIVO: Avaliar a evolução clínica dos pacientes com fibrilação atrial paroxística submetidos a um único procedimento de isolamento das veias pulmonares. MÉTODOS: Estudados 49 pacientes consecutivos (36 homens; idade média de 53±10 anos) com episódios freqüentes e sintomáticos de fibrilação atrial paroxística de difícil controle clínico. Para mapeamento da junção do átrio esquerdo com as veias pulmonares, foi utilizado o cateter decapolar circular Lasso e para ablação...

Mauricio Scanavacca; Raul Sartini; Fernando Tondato; A?vila, Andre? D.; Denise Hachul; Francisco Darrieux; Sissy Lara; Eduardo Sosa

2004-01-01

228

Comparação da perviedade entre artéria radial e veia safena em pacientes em pós-operatório de cirurgia de revascularização miocárdica com retorno dos sintomas Comparison of patency between radial artery and saphenous vein in a coronary artery bypass grafting post operative with return of the symptoms  

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Full Text Available OBJETIVO: Comparar a perviedade da artéria radial e veia safena em pacientes com retorno dos sintomas após cirurgia de revascularização do miocárdio (CRVM. MÉTODOS: Estudo retrospectivo. No período de janeiro de 1998 a dezembro de 2005, foram realizadas 469 CRVMs com o uso da artéria radial dentre os enxertos, no Hospital Vera Cruz, em Belo Horizonte/MG. Destes, 94 pacientes apresentaram alterações isquêmicas no pós-operatório recente ou tardio e foram reestudados com cineangiocoronariografia. Os enxertos foram divididos em três grupos: artéria torácica interna (ATI, artéria radial (AR e veia safena (VS, e foram estratificados segundo a gravidade das lesões: sem lesão grave (OBJECTIVE: To compare the radial artery and saphenous vein's patency in patients with recurrence of symptoms in a coronary artery bypass grafting (CABG. METHODS: Retrospective study. From January 1998 to December 2005, 469 CABGs were performed using the radial artery as a graft, in Vera Cruz Hospital in Belo Horizonte/ MG. Among the patients who underwent those surgeries, 94 presented ischemic changes in early or late postoperative period, which led them to be re-evaluated by coronary angiography. The grafts were divided in three groups: internal thoracic artery (ITA, radial artery (RA and saphenous vein (SV, and they were stratified according to the severity of injury: uninjured or patent (< 70%, severe obstruction (70 to 99% and occlusion. RESULTS: For the 94 patients in the study, 86 grafts of ITA, 94 of RA and 111 of SV were used. For the 86 ITA grafts, 73 (84.88% were found patent. For the 94 RA grafts, 55 (58.51% were found patent, and for the 111 SV grafts, 73 (65.76% were uninjured. A statistically significant difference (P= 0.001 was found between RA and SV grafts, with a higher patency found for VS graft. For the RA grafts, women presented a worse result concerning the RA patency (65.7% and 40.7%, with P = 0.006. Concerning coronary revascularization, a statistically significant difference was found only for the grafts used for the right coronary, with a better result for the SV (P = 0.036. CONCLUSION: Radial artery (RA presented worse results when compared to Saphenous vein (SV as a second graft in a CABG, especially in women who were anastomosed in the right coronary artery.

Herbert Coelho Hortmann

2010-06-01

229

El desarrollo laboral sustentable y su relación con la migración interna en México  

Directory of Open Access Journals (Sweden)

Full Text Available en este trabajo se estudió la interacción entre la mi - gración interestatal y el desarrollo laboral sustentable en México del año 2000 al 2010, de acuerdo con la visión de Amartya Sen. Este desarrollo se midió con el índice de competitividad social, y la interacción con la migración interna se evaluó con un modelo de ecuaciones simultá - neas. Los resultados confirmaron que a mayor desarrollo laboral sustentable, el grado de inmigración fue más y vi - ceversa. Por otro lado, no se encontró relación alguna entre la emigración interna y el desarrollo laboral sustentable. Al desagregar el índice de competitividad social, se encontró una relación causal mutua entre el índice de la ausencia de pobreza salarial y la inmigración interna, así como una relación causa-efecto positiva entre ausencia de pobreza salarial sobre la emigración interna, la cual no se da en el otro sentido.

Jes\\u00FAs Sergio S\\u00E1nchez Rodr\\u00EDguez

2014-01-01

230

Spiral vein graft for internal jugular bypass in a patient with multiple sclerosis and suspected chronic cerebrospinal venous insufficiency.  

Science.gov (United States)

Chronic cerebrospinal venous insufficiency (CCSVI) has been implicated as a contributing factor to multiple sclerosis (MS). This theory is strongly debated within the neurology and radiology communities. This report presents the case of a 45-year-old man with known MS and suspected CCSVI who had undergone previous internal jugular angioplasty and stenting. The patient reported dramatic improvement of symptoms after intervention. The stent thrombosed despite antithrombotic medication, and several endovascular interventions failed to restore long-term patency. Open venous reconstruction of the internal jugular vein was performed with a spiral graft from the saphenous vein. The patient's symptoms improved for several weeks until the venous reconstruction occluded. This case is the first reported open venous reconstruction for suspected CCSVI. PMID:23809937

Fankhauser, Grant T; Stone, William M; Fu, Roxana; Money, Samuel R

2013-07-01

231

Veia paraumbilical pérvia: importância hemodinâmica na hipertensão portal por esquistossomose mansônica hepatoesplênica. (Estudo com ultra-sonografia Doppler) / Patent paraumbilical vein: hemodynamic importance in Mansoni's hepatosplenic portal hypertension. (US-Doppler study)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Racional ? As repercussões hemodinâmicas das vias de circulação colateral portossistêmica sobre o sistema portal, na hipertensão portal, ainda não foram devidamente esclarecidas. A ultra-sonografia Doppler possibilitou o estudo do sistema portal de modo não-invasivo mediante a caracterização do diâm [...] etro dos vasos, da direção e da velocidade do fluxo sangüíneo. Objetivo - Estudar a veia paraumbilical mediante ultra-sonografia Doppler e avaliar sua repercussão na hemodinâmica do sistema portal, como via de circulação colateral portossistêmica. Método - Estudo do sistema portal, com ultra-sonografia Doppler, de 24 pacientes consecutivos com hipertensão portal por fibrose hepática devida à esquistossomose mansônica hepatoesplênica, hemorragia prévia por varizes do esôfago e veia paraumbilical pérvia com fluxo hepatofugal. Foram medidos o diâmetro e a velocidade média de fluxo na veia paraumbilical e a velocidade média de fluxo na veia porta e seus ramos direito e esquerdo. Foi realizado o teste de correlação linear entre a velocidade média de fluxo na veia porta com o diâmetro e a velocidade média de fluxo na veia paraumbilical. Os pacientes foram divididos em quatro grupos: D1 - veia paraumbilical com diâmetro ³ 0,68 cm (n = 10); V1 - veia paraumbilical com velocidade média de fluxo ³ 18,41 cm/seg (n = 11). As médias e os desvios padrão da velocidade média de fluxo na veia porta e seus ramos direito e esquerdo destes grupos foram comparados. Resultados - O diâmetro da veia paraumbilical foi de 0,68 ± 0,33 cm (intervalo: 0.15 - 1.30 cm) e a velocidade média de fluxo de 18,41 ± 11.51 cm/seg (intervalo: 5.73 - 38,20 cm/seg). O teste de Pearson (correlação linear) da velocidade média de fluxo na veia porta com o diâmetro da veia paraumbilical foi de r = 0,504 e com a velocidade média de fluxo na veia paraumbilical foi r = 0,735. No grupo D2, comparativamente ao grupo D1, a velocidade média de fluxo foi maior na veia porta (22,3 ± 7,66 / 17,80 ± 3,42 cm/seg), assim como no seu ramo esquerdo (22,4 ± 7,92 / 16,00 ± 4,73 cm/seg). No grupo V2, comparativamente ao grupo V1, a velocidade média de fluxo foi maior na veia porta (21,96 ± 5,89 / 16,31± 3,49 cm/seg), assim como no seu ramo esquerdo (21,94 ± 7,20 / 14,22 ± 4.41 cm/seg). Não houve alteração no ramo direito da veia porta: 13,67 ± 5,74 / 15,43 ± 3.43 cm/seg. Conclusões - A veia paraumbilical com diâmetro ³ 0,68 cm e velocidade média de fluxo ³ 18,41 cm/seg provoca o aumento da velocidade média de fluxo na veia porta e seu ramo esquerdo. O aumento da velocidade média de fluxo na veia porta e seu ramo esquerdo pode ser interpretado como influência hemodinâmica da veia paraumbilical sobre o sistema portal. A velocidade média de fluxo na veia paraumbilical é mais sensível do que seu diâmetro para avaliar a influência desta veia sobre o sistema portal na hipertensão portal por esquistossomose hepatoesplênica. A presença de uma via de circulação colateral portossistêmica hemodinamicamente significativa, aumenta a velocidade de fluxo nas veias do sistema portal, proximalmente ao seu ponto de origem. Abstract in english Background ? The hemodynamical effect of the collateral portosystemic circulation upon the portal system has not yet been fully understood. The US-Doppler made possible the non-invasive study of the portal system by evaluating the parameters: flow direction, diameter and flow velocity in it's vessel [...] s. Aims - To study the paraumbilical vein as a collateral portosystemic pathway and identify patterns for appraising its hemodynamic importance to the portal system. Method - US-Doppler study of the portal system of 24 patients with Mansoni's hepatosplenic schistosomic portal hypertension, previous esophagic variceal bleeding and patent paraumbilical vein with hepatofugal flow. The diameter and the mean flow velocity were measured in the paraumbilical vein and so were the mean flow velocity in

Azzo, WIDMAN; Ilka Regina Souza de, OLIVEIRA; Manlio Basílio, SPERANZINI; Giovanni Guido, CERRI; William Abrão, SAAD; Joaquim, GAMA-RODRIGUES.

2001-10-01

232

Efficacy and safety of cutting balloons for the treatment of obstructive lesions in the internal jugular veins.  

Science.gov (United States)

Aim: In this technical note we present the results of endovascular treatment for chronic cerebrospinal venous insufficiency with the use of cutting balloons, with focus on feasibility and safety of these endovascular devices. Methods: We used cutting balloons during 70 procedures in 65 multiple sclerosis patients presenting with strictures of the internal jugular veins, primarily at the level of jugular valves. These devices were used only in selected cases, following unsuccessful standard balloon angioplasty, and on condition that commercially available devices could be applied (currently they are maximally 8 mm in diameter). Results: In all cases the perioperative course was uneventful, with no serious adverse events. Immediate technical success rate was 94.3%. In four cases (5.7%) cutting-balloon angioplasty alone was unsuccessful and stents were implanted. Primary, assisted primary and secondary patency rates after 6 months were: 94%, 98.5%, and 98.5%, respectively. Follow-up has revealed that out of the remaining 66 angioplasties four procedures failed (failure rate: 6.1%): in two patients stents were implanted, in one patient successful redo cutting-balloon angioplasty was performed, while in another case the treated segment of jugular vein totally occluded and was not feasible to reopen endovascularly. Conclusion: Cutting balloons can be safely used for the management of stenosed internal jugular veins. These devices can replace stents in the majority of cases, especially if standard balloon angioplasty is insufficient to restore proper outflow. However, the use of cutting balloons in this particular venous territory is limited by the fact that currently only small diameter devices are available. PMID:24153192

Kazibudzki, M; Latacz, P; Ludyga, T; Simka, M

2013-10-24

233

Fully Automated Common Carotid Artery and Internal Jugular Vein Identification and Tracking using B-Mode Ultrasound  

OpenAIRE

We describe a fully automated ultrasound analysis system that tracks and identifies the common carotid artery (CCA) and the internal jugular vein (IJV). Our goal is to prevent inadvertent damage to the CCA when targeting the IJV for catheterization. The automated system starts by identifying and fitting ellipses to all the regions that look like major arteries or veins throughout each B-mode ultrasound image frame. The Spokes Ellipse algorithm described in this paper tracks these putative ves...

Wang, David; Klatzky, Roberta; Wu, Bing; Weller, Gregory; Sampson, Allan; Stetten, George

2009-01-01

234

EVALUACIÓN DE LAS PROPIEDADES MECÁNICAS DE LA ESTRUCTURA INTERNA DE LA GUADUA CON UN MODELO MATEMATICO  

OpenAIRE

Se caracterizo la estructura interna del Bambú-Guadua angustifolia kunth (GAK), en su zona media, encontrando la composición interna de este material compuesto, como son el porcentaje de la matriz (parénquima) y de fibras (células de fibras y tejido conductivo). Se determinó las propiedades mecánicas como la resistencia a tensión y a flexión en sentido tangencial, y la Relación de Poisson del material y la resistencia de la fibra. Se valido un modelo matemático para materiales compu...

JAIRO ALEXANDER OSORIO SARAZ; ALBEIRO ESPINOSA BEDOYA; Cda Galeano, Eduard A. Garc U.

2009-01-01

235

Composição química e actividade antioxidante das folhas internas da couve tronchuda  

OpenAIRE

A couve tronchuda (Brassica oleracea L. var. costata DC) é uma das couves mais consumidas pelos portugueses, especialmente durante o Inverno, apresentando as folhas (internas e externas) diferenças organolépticas marcadas. No presente trabalho procedeu-se à caracterização química das folhas internas de couve tronchuda, através da identificação e quantificação dos compostos fenólicos e dos ácidos orgânicos que as compõem e avaliou-se o seu potencial antioxidante. Foram identifi...

Pereira, J. A.; Sousa, C.; Ferreres, F.; Valenta?o, P.; Seabra, R. M.; Andrade, P. B.

2007-01-01

236

Vigilancia epidemiológica de la intoxicación aguda en el área sur de la comunidad de Madrid: estudio Veia 2004 / Epidemiologic survey of acute poisoning in the south area of the Community of Madrid: The Veia 2004 study  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Objetivo: VEIA es un registro evolutivo de las intoxicaciones agudas (IA) atendidas en Urgencias del Hospital Doce de Octubre de Madrid en un año completo [19791 (2), 1985 (3), 1990 (4), 1994 (5), 1997 (6) y 2000 (7)] presentamos el estudio del año 2004 y comparamos los resultados con los de años an [...] teriores (1-7). Métodos y resultados: el método es idéntico. De las 1.508 IA, 610 son intentos de suicidio (IBAIS) 319 etílicas (IAVE) y 219 drogas (IAVD). De los 2259 tóxicos implicados el 48% son medicamentos (50% diazepóxidos) alcohol 25% y drogas el 13%. Conclusiones: este año ha supuesto un importante aumento (34%) del número de casos y la incidencia supera a todas las publicadas en nuestro país (25,31,40) Aunque en el conjunto no hay diferencia significativa de género con el Censo de Área, la hay en IBAIS, IAVE y IAVD Las IBAIS crecen un 35%; Se duplica el uso de benzodiacepinas y antidepresivos en los IS de mujeres y crecen también en hombres pero menos; El paracetamol se mantiene en el 23% AINES, adyuvantes y mío-relajantes aumentan en mujeres y también el uso de alcohol y otros no fármacos en los is de mujeres casi igualándose con los hombres. La cuarta parte de los hombres con IS eran adictos y aparecen 13 casos de trastornos alimentarios. En las IAVE crecen el grupo sin etilismo y baja el total. Las drogas se duplican con respecto al año anterior la cocaína supone los 2/3 también suben la MDMA (22 casos) y aparecen nuevas drogas, como el pegamento, sin duda efecto de la inmigración, y ketamina; incluso cuatro casos no pudieron ser etiquetados por la falta de medios diagnósticos en la urgencia. Abstract in english Objetive: VEIA study is an evolutional registry of acute poisonings (AP) attended in the Emergency Room of the Doce de Octubre Hospital in Madrid (Spain) in a whole year (1979,1985, 1990, 1994,1997 and 2000). We present the 2004 study and compare the results with the previous years. Methods and resu [...] lts: Methodology has been identical across VEIA STUDY. Of 1508 AP, 610 are suicide attempts (IAVIS), 319 ethylic, (IAVE), and 218 by illicit drugs (IAVD). Of the 2,259 toxics involved, 48% are medications (50% benzodiacepines) alcohol 25% and illicit drugs 13%. Conclusions: There is an important increase (34%) of cases and the incidence surpasses all published in our country. There are no gender differences nor in the whole neither the Health Area Census, but there are differences in IAVIS, IAVE and IAVD. IAVIS increase in 35%. Benzodiacepines poisoning increases two-fold as well as antidepressive drugs do in women. In men also increase, but in a minor extent. Acetaminophen remains the same in 23%. NSAID's, adjuvants and myorelaxants increase in women as do also alcohol and other poisons that almost equal men's. There are 13 cases of IAVIS in patients with alimentary disorders. Among men, a quarter are illicit drug abusers. In IAVE, the group without alcoholism grows and the total decreases. Illicit drugs duplicate the number of the former year. Cocaine supposes already 2/3 of the cases, MDMA ascends to 22 cases and they appear new substances as glue, without doubt as an effect of immigration and ketamine. Finally 205 household accidents and 57 industrial injuries complete the series.

P. J., Caballero Vallés; S., Dorado Pombo; A., Díaz Brasero; M., Eugenia García Gil; L., Yubero Salgado; N., Torres Pacho; C., Ibero Esparza; J., Cantero Bengoechea.

2008-02-01

237

Vigilancia epidemiológica de la intoxicación aguda en el área sur de la Comunidad de Madrid: estudio VEIA 2004 / Epidemiologic survey of acute poisoning in the south area of the Community of Madrid: The VEIA 2004 study  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Objetivo: VEIA es un registro evolutivo de las intoxicaciones agudas (IA) atendidas en Urgencias del Hospital Doce de Octubre de Madrid en un año completo (1979 [2], 1985 [3], 1990 [4], 1994 [5], 1997 [6] y 2000 [7]) presentamos el estudio del año 2004 y comparamos los resultados con los de años ant [...] eriores (1-7). Métodos y resultados: el método es idéntico. De las 1.508 IA, 610 son intentos de suicidio (IBAIS) 319 etílicas (IAVE) y 219 drogas (IAVD). De los 2.259 tóxicos implicados el 48% son medicamentos (50% diazepóxidos) alcohol 25% y drogas el 13%. Conclusiones: este año ha supuesto un importante aumento (34%) del número de casos y la incidencia supera a todas las publicadas en nuestro país (25,31,40). Aunque en el conjunto no hay diferencia significativa de género con el Censo de Área, la hay en IBAIS, IAVE y IAVD Las IBAIS crecen un 35%; Se duplica el uso de benzodiacepinas y antidepresivos en los IS de mujeres y crecen también en hombres pero menos; El paracetamol se mantiene en el 23% AINE, adyuvantes y mío-relajantes aumentan en mujeres y también el uso de alcohol y otros no fármacos en los is de mujeres casi igualándose con los hombres. La cuarta parte de los hombres con IS eran adictos y aparecen 13 casos de trastornos alimentarios. En las IAVE crecen el grupo sin etilismo y baja el total. Las drogas se duplican con respecto al año anterior: la cocaína supone los 2/3 también suben la MDMA (22 casos) y aparecen nuevas drogas, como el pegamento, sin duda efecto de la inmigración, y ketamina; incluso cuatro casos no pudieron ser etiquetados por la falta de medios diagnósticos en la urgencia. Abstract in english Objetive: VEIA study is an evolutional registry of acute poisonings (AP) attended in the Emergency Room of the Doce de Octubre Hospital in Madrid (Spain) in a whole year (1979, 1985, 1990, 1994,1997 and 2000). We present the 2004 study and compare the results with the previous years. Methods and res [...] ults: Methodology has been identical across VEIA STUDY. Of 1508 AP, 610 are suicide attempts (IAVIS), 319 ethylic, (IAVE), and 218 by illicit drugs (IAVD). Of the 2,259 toxics involved, 48% are medications (50% benzodiacepines) alcohol 25% and illicit drugs 13%. Conclusions: There is an important increase (34%) of cases and the incidence surpasses all published in our country. There are no gender differences nor in the whole neither the Health Area Census, but there are differences in IAVIS, IAVE and IAVD. IAVIS increase in 35%. Benzodiacepines poisoning increases two-fold as well as antidepressive drugs do in women. In men also increase, but in a minor extent. Acetaminophen remains the same in 23%. NSAID's, adjuvants and myorelaxants increase in women as do also alcohol and other poisons that almost equal men's. There are 13 cases of IAVIS in patients with alimentary disorders. Among men, a quarter are illicit drug abusers. In IAVE, the group without alcoholism grows and the total decreases. Illicit drugs duplicate the number of the former year. Cocaine supposes already 2/3 of the cases, MDMA ascends to 22 cases and they appear new substances as glue, without doubt as an effect of immigration and ketamine. Finally 205 household accidents and 57 industrial injuries complete the series.

P. J., Caballero Vallés; S., Dorado Pombo; A., Díaz Brasero; M. E., García Gil; L., Yubero Salgado; N., Torres Pacho; C., Ibero Esparza; J., Cantero Bengoechea.

2008-06-01

238

Preparation of the saphenous vein for coronary artery bypass grafting: a new technique "no touch" that maintains the vein wall integral and provides high immediate patency / Preparo da veia safena na cirurgia de revascularização miocárdica: uma nova técnica -"no touch"- que mantém a parede da veia íntegra e proporciona uma alta perviabilidade imediata  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese OBJETIVO: O objetivo deste trabalho é apresentar uma nova técnica "no touch" de preparo da veia safena e sua importância clínica. Esta nova técnica consiste na retirada da veia safena do seu leito, juntamente com um pedículo de tecido adiposo, protegendo a veia contra espasmos e, conseqüentemente, d [...] a necessidade de distendê-la durante a operação. MÉTODO: O estudo foi realizado em dois tempos: 1) Inicialmente, foi realizado um estudo prospectivo e randomizado, envolvendo 156 pacientes que foram submetidos à operação de revascularização miocárdica. Neste estudo nós comparamos a técnica "no touch" (NT) com duas outras: a convencional (C) e a intermediária (I). Foi feita uma avaliação detalhada da morfologia endotelial, utilizando a microscopia eletrônica, enquanto que a perviabilidade das pontes foi determinada com um exame angiográfico executado num período médio de 18 meses após a operação. 2) Finalmente, a enzima óxido nítrico síntase (NOS) foi identificada com ajuda do estudo imunohistoquímico e também pela localização auto-radiográfica de (3H)-L- Nitro-Arginina (NOARG). RESULTADOS: A avaliação morfológica mostrou integridade endotelial de 97% nas veias que foram tratadas pela técnica NT; enquanto quase metade da superfície endotelial das veias tratadas pelas outras duas técnicas exibiu ausência de células endoteliais. O exame angiográfico revelou perviabilidade de 95,4% para as pontes do grupo NT, 88,9% para as pontes do grupo (C) e 86,2% para as pontes do grupo (I). O estudo imunohistoquímico revelou a presença de NOS nas três camadas que compõem a parede da veia quando, as mesmas, foram tratadas pela técnica NT. Por outro lado, foi observada uma elevada redução desta enzima nas veias que foram tratadas pela técnica (C). A análise auto-radiográfica confirmou os resultados imunohistoquímicos. CONCLUSÃO: A integridade endotelial e a atividade da enzima óxido nítrico síntase foram melhor mantidas com o uso da técnica NT no preparo da veia safena. A atividade vasodilatadora e bloqueadora da agregação plaquetária causada pelo óxido nítrico (NO) pode ser a responsável pela proteção da veia contra o espasmo, como também pela alta perviabilidade imediata da mesma. Além disso, as propriedades mecânicas providas pelo tecido gorduroso em volta da veia, contribuíram para o melhor resultado desta nova técnica. Abstract in english BACKGROUND: The technique of harvesting the saphenous vein (SV) for coronary artery bypass grafting (CABG) influences the fate of vein grafts. A new "no touch" (NT) technique of SV preparation was developed where the vein is harvested with a pedicle of surrounding tissue, which protects the vein fro [...] m spasms therefore obviating the need for distension. METHOD: A prospective randomized study in 156 patients who underwent CABG was performed comparing three SV harvesting techniques. The techniques were conventional (c) (adventitial stripping of the vein, manual distention and storing in saline solution); Intermediate (I) (after adventitial stripping, the vein was left in situ, covered with a papaverine-soaked compress, and stored in heparinized blood); and "no touch" (SV dissected with its surrounding tissue was left in situ, covered with a saline-soaked compress and stored in heparinized blood). A morphological study of the endothelium was preformed using scanning electronic microscopy and an angiographic assessment of the vein graft patency was performed at 18 months mean follow-up time. Also an immunohistochemistry assessment was performed to identify the enzyme, nitric oxide synthase (NOS) in the vein wall. RESULTS: The preservation of the endothelial cell integrity was greater with the "no touch" technique than with the other procedures. At angiographic follow up, the patency for NT was 95.4%, 88.9% for grafts in group C and 86.2% for grafts in group I. The immunohistochemistry assessment revealed NOS in all three layers of the vein wall tha

Domingos S. R., Souza; Michael R., Dashwood; Alan, Tonazi; Benny, Johansson; Enio, Buffolo; Ricardo, Lima; Derek, Filbey; Vollmer, Bomfim.

2003-12-01

239

Lemierre’s syndrome: case of a patient with pulmonary embolism and cavernous sinus thrombosis complicating a septic internal jugular vein thrombus  

OpenAIRE

Lemierre’s syndrome is a complex and unusual clinical entity, characterized by septic thrombophlebitis of the internal jugular vein. We present the case of a patient with Lemierre’s syndrome, pulmonary embolism and propagation of an internal jugular vein thrombus retrograde to the cavernous sinus. The patient was treated with antibiotics and heparin. The importance of rapid diagnosis of the extent of the disease, in directing the otherwise somewhat controversial treatment with heparin in ...

VOJKO FLIS; NINA KOBILICA; ANDREJ BERGAUER

2012-01-01

240

The search for valved conduit tissue grafts for adults (>22 mm): an ultrasonographic study of jugular vein diameters of horses and cattle  

OpenAIRE

Abstract Background Natural heterologous valved conduits with a diameter greater than 22 mm that can be used for right ventricular outflow tract reconstruction in adults are not commercially available. The purpose of this study was to measure by ultrasonography the maximum diameter of the distended jugular veins of horses and cattle, respectively, to identify a population of animals that would be suitable for post-mortem collection of jugular veins at sizes greater than 22 mm...

Jenni Rolf; Schwarzwald Colin C

2009-01-01

241

Endovascular treatment of two concomitant causes of pulsatile tinnitus: sigmoid sinus stenosis and ipsilateral jugular bulb diverticulum. Case report and literature review.  

Science.gov (United States)

We describe a rare case of highly invalidating pulsatile tinnitus associated with both stenosis of the sigmoid sinus and ipsilateral jugular bulb diverticulum. Both conditions were successfully treated by positioning a stent across the sigmoid sinus and jugular bulb. To our knowledge, the present clinical case represents the first report of such an approach. The therapeutic decision-making is discussed in relation to the etiopathologic hypothesis put forward. PMID:22065197

Signorelli, Francesco; Mahla, Kalid; Turjman, Francis

2012-01-01

242

Drenagem anômala total das veias pulmonares, em sua forma infracardíaca: desafio diagnóstico Infracardiac total anomalous pulmonary venous drainage: a diagnostic challenge  

OpenAIRE

No período neonatal, a drenagem anômala total das veias pulmonares, em sua forma infracardíaca, pode ser erroneamente diagnosticada como desconforto respiratório decorrente de diferentes etiologias. No pré-operatório, a ecocardiografia bidimensional com Doppler orientado pelo mapeamento de fluxo em cores pode definir o local exato da drenagem e o padrão de retorno venoso pulmonar, permitindo, dessa forma, que a cirurgia cardíaca seja realizada imediatamente antes que ocorra qualquer d...

Silva, Ce?lia M. C.; Oporto, Victor M.; Patrícia Silveira; Ayrton Bertini Junior; Carlos Eduardo Bernini Kapins; Antonio Carlos Camargo Carvalho

2007-01-01

243

Drenagem anômala total das veias pulmonares: terapêutica cirúrgica dos tipos anatômicos infracardíaco e misto Total anomalous pulmonary venous drainage: surgical therapy for the infradiaphragmatic and mixed anatomical types  

OpenAIRE

OBJETIVO: Estudar a evolução hospitalar em portadores de drenagem anômala total de veias pulmonares (DATVP), nas formas infracardíaca e mista, submetidos a tratamento cirúrgico. MÉTODOS: De 65 pacientes operados com o diagnóstico isolado de DATVP, de dezembro/1993 a março/2002, foram selecionados, retrospectivamente, 7 (10,8%) pacientes das formas mista e infradiafragmática, sendo 5 (71,4%) do sexo masculino, idades variando de 5 dias a 19 (média de 7) meses, com diagnóstico clíni...

Fernando Antibas Atik; Patricia Egusquiza Irun; Miguel Barbero-Marcial; Edmar Atik

2004-01-01

244

Aneurismas múltiplos de pontes aorto-coronárias de veia safena com ruptura fatal Multiple aneurysms of aortocoronary saphenous vein grafts with fatal rupture  

OpenAIRE

Aneurismas de pontes aorto-coronárias de veia safena são eventos raros, usualmente assintomáticos e detectados de forma incidental. Rupturas espontâneas de pontes de safena são raras, havendo poucos dados radiológicos disponíveis na literatura. Relatamos o caso de um senhor de 39 anos internado com hematêmese dez anos depois de ter sido submetido a cirurgia de revascularização miocárdica. Imagens tomográficas mostraram três aneurismas nas pontes de safena, mas o exame não detect...

Ta?vora, Fa?bio R.; Jean Jeudy; Burke, Allen P.

2007-01-01

245

A rare association of total anomalous pulmonary venous connection and cor triatriatum A rara associação de drenagem anômala total de veias pulmonares e cor triatriatum  

OpenAIRE

The association between total anomalous pulmonary venous connection and cor triatriatum is extremely rare. We emphasize the possibility of rupturing the membrane of cor triatriatum in the preoperative cineangiographic study, providing a significant improvement of the clinical features, as well as surgical correction and successful evolution.A associação entre drenagem anômala total de veias pulmonares e cor triatriatum é extremamente rara. Enfatizamos a possibilidade de rotura da memb...

Ulisses Alexandre Croti; Domingo Marcolino Braile; Moacir Fernandes Godoy; Carlos Alberto De Marchi

2003-01-01

246

Targeted ultrasound is the procedure of choice for detecting rudimentary branchial cysts causing jugular and subclavian vein thrombosis.  

Science.gov (United States)

The aim of this study was to facilitate the imaging diagnosis of branchial cysts leading to combined jugular and subclavian vein thrombosis during ovarian hyperstimulation syndrome (OHSS). Three women developed combined jugular and subclavian vein thrombosis following OHSS related to assisted reproductive technologies. The imaging modalities used for diagnosis were a bimode Doppler ultrasound, MRI of the neck in two women, computed tomography (CT) angiography and venography in one. Targeted ultrasound identified the rudimentary cysts in all patients, whereas CT angiography performed with contrast material failed to detect the cyst, which resembled a vessel with thrombus in the lumen. MRI performed at the same level did detect the cyst; however, MRI of the neck requires special attention using a dedicated cystic protocol at the base of the neck. Venography was performed in one patient; it demonstrated the thrombosed vein possibly with some extrinsic compression, but it could not define a cyst. Targeted ultrasound is the simplest and best imaging modality for discerning rudimentary cysts in pregnant women with OHSS who present with jugular and subclavian vein thrombosis following assisted reproductive technology. A search for the cyst at the time of OHSS is important, as early detection could decrease the risk of developing thrombosis. PMID:20885297

Salomon, Ophira; Kleinbaum, Yeroham; Heiman, Zehava; Itzchak, Yacov

2010-12-01

247

Acute pulmonary emboli due to internal jugular vein thrombosis in papillary thyroid carcinoma, a case report and literature review.  

Science.gov (United States)

Upper extremity deep vein thrombosis (UEDVT) is a life threatening rare condition. Among the patients with UEDVT, internal jugular vein is accepted as uncommon thrombosis. Since internal jugular vein thrombosis (IJVT) is mostly underdiagnosed, a great attention is needed to diagnose the disease. A 75-year-old woman with history of dyspnea on exertion (DOE), weight loss and anorexia with the stable vital sign and right-sided cervical adenopathy with suspected thyroid nodule was admitted. One day after admission, sudden dyspnea was occurring with unstable vital sign and hypotension. Chest X-ray showed a bilateral pleural effusion. Pleural tap was exudative, CT scan showed bilateral pulmonary emboli. CT scan of the neck showed right-sided cervical adenopathy, heterogeneous thyroid and internal jugular vein thrombosis concomitant with superior thyroid vein thrombosis. The patient was treated with thrombolytic agent and enoxaparin followed by warfarin. Thyroid FNA revealed papillary thyroid carcinoma that followed by total thyroidectomy, histopathological examination verified papillary thyroid carcinoma. Although lower extremity DVT is the main cause of pulmonary emboli, but IJVT may be proceed by pulmonary embolism. Due to fatal outcome of pulmonary emboli in IJVT, color duplex sonography, is recommended in documented tumors or suspected history of malignancy. PMID:24592374

Ataiekhorasgani, Masoud; Jafaripozve, Nasim

2014-01-01

248

Thrombophlebitis of the internal jugular vein (Lemierre syndrome) - Clinical and CT findings  

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Background: Thrombophlebitis of the internal jugular vein (IJV) secondary to neck infection (so-called Lemierre syndrome) is a rare disease. Purpose: To evaluate the clinical and CT findings in patients with thrombophlebitis of the IJV. Material and Methods: The clinical and contrast-enhanced neck CT findings were retrospective analyzed in 10 patients (eight men, two women; mean age, 62.9{+-}8.3 years) with thrombophlebitis of the IJV. Results: Five patients (50%) had complications, including pneumonia (n = 3), neck abscess (n = 1), and thrombophlebitis of cerebral venous sinus (n = 1). All patients, except two who were lost to follow-up, had improved after antibiotics and anticoagulation therapy. Nine (90%) patients had underlying infectious processes in the neck. Contrast-enhanced neck CT of 12 IJVs (five right, three left, and two bilateral) affected by thrombophlebitis demonstrated > 5 cm in length (n = 8, 67%), ovoid shape (n = 7, 58%), complete occlusion of the lumen (n = 10, 83%), circumferential (n = 11, 92%), smooth (n = 8, 67%), and thick (=4 mm) (n = 8, 67%) rim enhancement, and adjacent soft tissue swelling (n = 11, 92%). Conclusion: Contrast-enhanced CT is useful in the diagnosis of thrombophlebitis of the IJV; characteristic CT findings of this unusual entity may be the main clue to the correct diagnosis.

Kim, Bo Yeon; Yoon, Dae Young; Lim, Kyoung Ja; Seo, Young Lan; Yun, Eun Joo; Choi, Chul Soon; Bae, Sang Hoon [Dept. of Radiology, Kangdong Seong-Sim Hospital, Hallym Univ. Coll. of Medicine, Seoul (Korea, Republic of)], e-mail: evee0914@chollian.net; Kim, Hyeong Chul [Dept. of Radiology, Chuncheon Sacred Heart Hospital, Hallym Univ. Coll. of Medicine, Kangwon-do (Korea, Republic of); Kim, Eun Soo [Dept. of Radiology, Hallym Univ. Sacred Heart Hospital, Hallym Univ. Coll. of Medicine, Gyeonggi-do (Korea, Republic of); Baek, Sora [Dept. of Nuclear Medicine, Kangdong Seong-Sim Hospital, Hallym Univ. Coll. of Medicine, Seoul (Korea, Republic of)

2013-07-15

249

Placement of a Hemodialysis Catheter using the Dilated Right External Jugular Vein as a Primary Route  

Energy Technology Data Exchange (ETDEWEB)

To evaluate the feasibility that a dilated right external jugular vein (EJV) could be a primary venous access site for large bore hemodialysis catheter placement. Between January 2008 and April 2009, a total of 173 hemodialysis catheters (14.5 F) were placed. Among them, we evaluated the clinical data of 42 patients who underwent placement through a dilated right EJV. We evaluated technical success, duration of catheterization in days, and the presence of complications. Technical success was achieved for 41 patients (98%). Catheter placement was unsuccessful in one patient due to narrowing of the EJV. The catheter dwell time ranged between 14 and 305 days (mean; 76 days, total catheter days: 3,111 days). A total of 26 hemodialysis catheters were removed due to complications (n=2) and termination of hemodialysis via the hemodialysis catheter (n=24). There was air embolization (n=1) and catheter kinking (n=3) during procedures and catheter related infections (n=2) during the follow-up period. The incidence of catheter related infection was 0.06 per 100 catheter days. No cases of catheter malfunction or symptomatic venous thrombosis were observed. We suggest that a dilated right EJV could be considered as a preferred primary route for hemodialysis catheter placement with easy access

Park, Mi Hyun [Dankook University Hospital, Cheonan (Korea, Republic of); Shin, Byung Seok [Chungnam National University Hospital, Daejeon (Korea, Republic of)

2010-08-15

250

Thrombolytic effect of lonomin V in a rabbit jugular vein thrombosis model.  

Science.gov (United States)

Thrombolytic efficacy of lonomin V (LV), a protein isolated from Lonomia achelous caterpillars haemolymph, administered either as a single intravenous bolus or as a continuous infusion, was evaluated in a rabbit jugular vein thrombosis model, and compared with those of single-chain tissue-type plasminogen activator (sct-PA) and two-chain urokinase-type plasminogen activator (tcu-PA). As a bolus LV, at doses of 100 000 IU/kg body weight (bw) produced an activator-induced thrombolysis (AIL) of 50.94% +/- 12.4 compared with 14.4% +/- 10.8 for tcu-PA at the same dose. As a continuous infusion at doses of 200 000 IU/kg bw LV produced an AIL of 45.8%, whereas sct-PA and tcu-PA produced an AIL of 69.9 and 33.7%, respectively. Fibrinogen, plasminogen and alpha-2-antiplasmin levels decreased significantly with the higher doses of LV, sct-PA, and tcu-PA. Factor XIII levels were significantly reduced in a dose-dependent manner only with LV. In conclusion, LV produces a dose-dependent thrombolysis in combination with a decrease in factor XIII activity. PMID:11685039

Guerrero, B; Arocha-Piñango, C L; Pinto, M A; Müller, C A; Gil San Juan, A G; Amorim, S; Perales, J

2001-10-01

251

[Jugular vein thrombosis caused by a neuroendocrine non-small cell lung cancer].  

Science.gov (United States)

A 65-year-old patient presented with extensive swelling of the lateral neck. B-mode ultrasound showed an oval, well defined, hypoechoic formation consisting of multiple circular layers extending from the base of the skull to the subclavian vein. On subsequent computed tomography the size of the lesion was confirmed and the cause, a mediastinal mass compressing the superior caval vein, was identified. Histological examination of the mass revealed a neuroendocrine active non-small-cell-cancer of the lung. Treatment with high-dose heparin and antibiotics was started immediately, combined with palliative chemotherapy.The differential diagnosis of neck masses includes congenital, infectious, neoplastic and secondary causes due to disease in other regions of the body. Etiologies for jugular vein thrombosis include prolonged central venous catheterization, trauma, obstruction, infection as well as hypercoagulation. In order to diagnose masses in the head and neck region, other parts of the body need to be successively included if no local cause can be identified. PMID:20204317

Albers, A E; Brocks, C; Wollenberg, B

2010-03-01

252

Residual tumor diagnosis for glomus jugulare tumors by dynamic contrast medium MRI  

International Nuclear Information System (INIS)

Purpose: To evaluate the ability of dynamic MRI to differentiate residual tumor from scar after glomus jugulare (GJ) surgery. Methods: 26 patients after GJ surgery were examined with dynamic contrast medium MRI on a 1.5 T Philips-Gyro-Scan NT. A T1-weighted TFE sequence was performed to localise the 5 slices for the dynamic study. Subsequently, a T1-weighted TFE sequence was used for the dynamic contrast medium study. We started contrast medium administration and TFE sequence at the same time. The time until acquisition of the first image was 7.4 s, and the interval between two images 7 s (total time 2.24 min). Intensity versus time studies were performed in the region of interest. Results: 2 typical intensity versus time graphs were observed: residual tumors showed a rapid increase in signal intensity, followed by a 'wash-out' phase, and a plateau phase in the later course. Scar showed a moderate increase in signal intensity, followed by a plateau phase on a low intensity level. In 9 patients, in whom tumor removal was subtotal, we saw the typical graph of a GJ tumor. 4 of 17 patients with complete tumor removal showed a typical graph like that of residual tumor, 13 of 17 patients showed the typical graph of a scar. Conclusions: With dynamic contrast medium MRI studies, differentiation between residual tumor and scar is possible in patients with prior GJ surgery. (orig.)

253

Acute jugular vein thrombosis during rituximab administration: Review of the literature.  

Science.gov (United States)

Rituximab, a chimeric monoclonal antibody is licensed for the treatment of CD20 positive lymphomas. Previous studies have found rituximab, in combination with cyclophosphamide, doxorubicin, vincristine, and prednisone chemotherapy, is superior to cyclophosphamide, doxorubicin, vincristine, and prednisone alone in the treatment of diffuse large B-cell lymphoma and many other B-cell lymphomas. Acute hypersensitivity reactions have been reported in patients receiving rituximab infusion and usually manifesting as headache, fever, chills, sweats, skin rash, dyspnea, mild hypotension, and nausea. Acute major venous thrombosis and seizures have not been reported as manifestation of acute hypersensitivity reaction. We report on a 22-year-old woman, who was diagnosed with stage III B CD20 positive B-cell diffuse large B-cell lymphoma. During the first cycle of treatment, she developed grand-mal seizure while receiving rituximab infusion without any other features of acute hypersensitivity reaction. Imaging confirmed new onset jugular vein thrombosis with normal coagulation parameters. These events were managed by anticonvulsants and anticoagulation therapy. The patient completed eight cycles of cyclophosphamide, doxorubicin, vincristine, and prednisone without rituximab and achieved complete remission. No further complications were noted. To our knowledge, this is the first case in the literature describing grand-mal seizures and acute thrombosis while on rituximab treatment. Clinicians should be aware of this rare side effect, as stopping rituximab can prevent recurrence of these complications. PMID:25063762

Dada, Reyad; Zekri, Jamal; Ramal, Bilal; Ahmad, Kamel

2014-07-24

254

Plasma concentrations of corticosterone and buprenorphine in rats subjected to jugular vein catheterization  

DEFF Research Database (Denmark)

The present study investigated the postoperative plasma concentrations of corticosterone and buprenorphine in male Wistar and Sprague-Dawley rats, treated with buprenorphine administered either through subcutaneous (SC) injection or through voluntary ingestion (VI). The animals were treated with buprenorphine for pre-emptive analgesia prior to surgical placement of a jugular catheter, followed by automated blood sampling during 96 h. Buprenorphine was administered on a regular basis throughout the experiment, and blood was collected on selected time points. Body weight was measured before and 96 h after surgery. It was found that the two rat stocks responded in a similar manner to both buprenorphine treatments, with the exception of body weight change in Wistar rats, in which body weight was reduced after SC treatment. The plasma concentration of corticosterone was significantly higher in the SC-treated animals than in the VI-treated animals during the first 18 h of the study, while plasma buprenorphine concentration was at least as high and more even over time after VI treatment. The present study shows that buprenorphine administration through VI is suitable for both Wistar and Sprague-Dawley rats, with lower stress response and higher plasma concentrations of buprenorphine than after the traditional SC route of administration.

Goldkuhl, Renée; Jacobsen, Kirsten Rosenmaj

2010-01-01

255

Congenital inferior vena cava anomalies: a review of findings at multidetector computed tomography and magnetic resonance imaging / Anomalias congênitas da veia cava inferior: revisão dos achados na tomografia computadorizada multidetectores e ressonância magnética  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Anomalias da veia cava inferior são incomuns, ocorrendo em até 8,7% da população, quando consideradas as anomalias da veia renal esquerda. A veia cava inferior se desenvolve da sexta à oitava semanas de gestação, originada de três veias embrionárias pareadas: veias subcardinais, supracardinais e pós [...] -cardinais. A complexidade da ontogenia da veia cava inferior, com numerosas anastomoses entre essas três veias embrionárias, pode levar a uma grande variedade do retorno venoso do abdome e membros inferiores. Algumas dessas anomalias têm implicações clínicas e cirúrgicas significativas, associadas a outras anomalias congênitas, e em alguns casos, associadas a trombose venosa de membros inferiores, principalmente em pacientes adultos jovens. Foram revistos os exames de dez pacientes com anomalias da veia cava inferior, três deles com trombose venosa profunda de membros inferiores. Foram salientados os principais aspectos das anomalias da veia cava inferior, nos exames de tomografia computadorizada multidetectores e ressonância magnética, correlacionados com a embriologia e demonstrando as principais vias alternativas de drenagem venosa. O conhecimento das anomalias da veia cava inferior é fundamental na avaliação dos exames de imagem do abdome, evitando erros de interpretação e indicando a possibilidade de anomalias associadas, implicações clínicas e cirúrgicas. Abstract in english Inferior vena cava anomalies are rare, occurring in up to 8.7% of the population, as left renal vein anomalies are considered. The inferior vena cava develops from the sixth to the eighth gestational weeks, originating from three paired embryonic veins, namely the subcardinal, supracardinal and post [...] cardinal veins. This complex ontogenesis of the inferior vena cava, with multiple anastomoses between the pairs of embryonic veins, leads to a number of anatomic variations in the venous return from the abdomen and lower limbs. Some of such variations have significant clinical and surgical implications related to other cardiovascular anomalies and in some cases associated with venous thrombosis of lower limbs, particularly in young adults. The authors reviewed images of ten patients with inferior vena cava anomalies, three of them with deep venous thrombosis. The authors highlight the major findings of inferior vena cava anomalies at multidetector computed tomography and magnetic resonance imaging, correlating them the embryonic development and demonstrating the main alternative pathways for venous drainage. The knowledge on the inferior vena cava anomalies is critical in the assessment of abdominal images to avoid misdiagnosis and to indicate the possibility of associated anomalies, besides clinical and surgical implications.

Catherine, Yang; Henrique Simao, Trad; Silvana Machado, Mendonca; Clovis Simao, Trad.

2013-07-01

256

Marcapasso bi-atrial epicárdico subxifóide na obstrução da veia cava superior / Bi-atrial subxiphoid epicardial pacemaker in superior vena cava syndrome  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Um paciente portador de marcapasso definitivo bi-atrial-ventricular por fibrilação atrial paroxística e bradicardia sinusal, em uso crônico de anticoagulante oral, apresentou sinais clínicos da síndrome da veia cava superior. A venografia por subtração digital mostrou obstrução total do tronco braqu [...] iocefálico venoso direito e grande dificuldade de fluxo sangüíneo da veia inominada para a veia cava superior. A abordagem terapêutica constou da remoção completa do sistema transvenoso seguida de reimplante do sistema bi-atrial-ventricular por técnica epimiocárdica pela via subxifóide assistida por fluoroscopia. Abstract in english A patient with a bi-atrial-ventricular permanent pacemaker due to paroxystic atrial fibrillation associated to sinus bradycardia, in chronic use of oral anticoagulant, presented clinical signs of superior vena cava syndrome. Digital subtraction venography showed total obstruction of the right brachi [...] ocephalic venous trunk and severe stenosis of the connection of the left trunk to the superior vena cava. The therapeutic approach consisted of complete removal of transvenous system followed by re-implant of the bi-atrial-ventricular system using an epicardial subxiphoid access with fluoroscopic assistance

Roberto, Costa; Maria Inês de Paula, Leão; Kátia Regina da, Silva; Paulo Roberto, Camargo; Regina Valéria, Costa.

2006-10-01

257

Marcapasso bi-atrial epicárdico subxifóide na obstrução da veia cava superior Bi-atrial subxiphoid epicardial pacemaker in superior vena cava syndrome  

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Full Text Available Um paciente portador de marcapasso definitivo bi-atrial-ventricular por fibrilação atrial paroxística e bradicardia sinusal, em uso crônico de anticoagulante oral, apresentou sinais clínicos da síndrome da veia cava superior. A venografia por subtração digital mostrou obstrução total do tronco braquiocefálico venoso direito e grande dificuldade de fluxo sangüíneo da veia inominada para a veia cava superior. A abordagem terapêutica constou da remoção completa do sistema transvenoso seguida de reimplante do sistema bi-atrial-ventricular por técnica epimiocárdica pela via subxifóide assistida por fluoroscopia.A patient with a bi-atrial-ventricular permanent pacemaker due to paroxystic atrial fibrillation associated to sinus bradycardia, in chronic use of oral anticoagulant, presented clinical signs of superior vena cava syndrome. Digital subtraction venography showed total obstruction of the right brachiocephalic venous trunk and severe stenosis of the connection of the left trunk to the superior vena cava. The therapeutic approach consisted of complete removal of transvenous system followed by re-implant of the bi-atrial-ventricular system using an epicardial subxiphoid access with fluoroscopic assistance

Roberto Costa

2006-10-01

258

Esplenectomia com ligadura da veia gástrica esquerda e desvascularização da grande curvatura do estômago no tratamento da esquistossomose hepatoesplênica: é necessária a escleroterapia endoscópica pós-operatória  

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Full Text Available Objetivo - Com o intuito de avaliar a eficácia e a manutenção da esclerose endoscópica pós-operatória como rotina, em associação à esplenectomia com ligadura da veia gástrica esquerda e desvascularização da grande curvatura do estômago, foi realizado o presente estudo. Método - Entre 1992 e 1998 foram operados 131 pacientes no Hospital das Clínicas da Universidade Federal de Pernambuco, Recife, PE. O seguimento médio foi de 30 meses. Os pacientes foram solicitados a retornar ao ambulatório daquele hospital para realização de controle clínico e laboratorial. Dos 111 pacientes que retornaram ao ambulatório, apenas 80 realizaram endoscopia digestiva alta de controle. Destes 80, 36 seguiram a recomendação e realizaram esclerose endoscópica pós-operatória (grupo 1, enquanto 44 não a realizaram (grupo 2. Resultados - Observou-se de forma relevante e estatisticamente significativa, a diferença entre os dois grupos quando se analisou a erradicação das varizes de esôfago, com melhor resultado para o grupo 1 (52,7% do grupo 1 versus 18,2% do Grupo 2. Nos demais itens analisados (mortalidade, recidiva hemorrágica, trombose da veia porta, varizes de fundo gástrico e grau de fibrose periportal não se observou relevância estatística. Conclusão - Conclui-se que a associação da escleroterapia endoscópica pós-operatória à esplenectomia com ligadura de veia gástrica esquerda e desvascularização da grande curvatura do estômago, no tratamento da hipertensão portal esquistossomótica com antecedentes de hemorragia digestiva, deve ser mantida.

FERRAZ Álvaro Antônio Bandeira

2001-01-01

259

Hyperostosis frontalis interna in a Neandertal from Marillac (Charente, France).  

Science.gov (United States)

The site of Marillac (Charente, France) has yielded an important stratigraphic sequence containing numerous Neandertal remains (some of them with peri-mortem manipulations) from lithofacies 2 (Quina Mousterian). This level has been correlated with MIS 4 and is associated with a TL date of 57,600 ± 4600 years BP (before present). The study of one of the cranial fragments (Marillac 3) revealed a grade 2 or Type B Hyperostosis frontalis interna (HFI), remodelling and altering the internal table of the thick frontal bone. This pathology has been analysed macroscopically together with radiography and sections made using a microscanner and a scanner. The development of the HFI is compared with published evidence for Sangiran 3 (Homo erectus), two other Neandertals (Forbes' Quarry and Shanidar 5), and several archaeological samples. Forbes' Quarry seems to display more advanced HFI than either Shanidar 5 or Marillac 3. The three Neandertals may be considered mature individuals (?40 years) and it seems likely that the aetiology of this pathology may be associated with hormonal alterations, as has been suggested for past and extant populations. While the prevalence of HFI in contemporary post-menopausal women is well documented, the identification of HFI amongst males from several archaeological samples (Neanderthals, Ancient Egypt, Syrian Bronze Age or the Anasazi), with different stages of development, confirm that the pathology affected both sexes in past populations. Additional data and research are still needed to elucidate the etiopathogenesis of this illness and to better understand the relationship between environmental factors and their possible influences/consequences for the development of metabolic disorders in prehistoric populations. PMID:24491378

Garralda, María Dolores; Maureille, Bruno; Vandermeersch, Bernard

2014-02-01

260

Alterações angiográficas e pressóricas determinadas pela esplenectomia e ligadura da veia gástrica esquerda em portadores de esquistossomose mansônica / Angiografic and pressoric changes determined by splenectomy with left gastric vein ligature in mansoni schistosomiasis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese RACIONAL: Na esquistossomose mansônica na forma hepatoesplênica ocorre fibrose hepática difusa que associada à congestão venosa do sistema porta resulta em hepatoesplenomegalia. Pode produzir hemorragia digestiva alta por rotura das varizes de esôfago e do estômago ou lesões pépticas da mucosa gastr [...] oduodenal. OBJETIVO: Estudar os efeitos da esplenectomia e ligadura da veia gástrica esquerda sobre a hemodinâmica portohepática. MÉTODO: Vinte e três portadores de esquistossomose mansônica na forma hepatoesplênica foram estudados prospectivamente, antes e cerca de duas semanas após a operação, através de estudos angiográficos dos diâmetros da artéria hepática comum e própria, artéria esplênica, artéria mesentérica superior, veia porta, veia mesentérica superior e veia gástrica esquerda. Foram aferidas as pressões da veia cava inferior, venosa central, da veia hepática livre, da veia hepática ocluída e sinusoidal. RESULTADOS: A ligadura da veia gástrica esquerda determinou acréscimo significante nas seguintes variáveis: diâmetros da artéria hepática comum e própria; diâmetro da veia mesentérica superior; o acréscimo não foi significante nas seguintes medidas: pressão venosa central e diâmetro da artéria mesentérica superior. Ela promoveu decréscimo não significante nas variáveis: pressão da veia cava inferior; pressão da veia hepática livre; pressão da veia hepática ocluída; pressão sinusoidal; diâmetro da veia porta. CONCLUSÃO: A ligadura da veia gástrica esquerda, na maioria dos casos, não determina alterações hemodinâmicas significantes do sistema porta capazes de quebrar o equilíbrio hemodinâmico funcional, que caracteriza a esquistossomose mansônica na forma hepatoesplênica. Abstract in english BACKGROUND: In hepatosplenic schistosomiasis occurs diffuse hepatic fibrosis associated with venous congestion of the portal system resulting in hepatosplenomegaly. It can produce digestive hemorrhage caused by rupture of esophageal and stomach varices or peptic gastroduodenal mucosal lesions. AIM: [...] To study the effects of splenectomy and ligature of the left gastric vein on portohepatic hemodynamics. METHOD: Twenty-three patients with hepatosplenic schistosomiasis mansoni were studied before and about two weeks after operation through angiographic diameter of the common and proper hepatic artery, splenic artery, superior mesenteric artery, portal vein, superior mesenteric vein and left gastric vein. The pressures of the inferior vena cava and central venous pressure, free hepatic vein, the hepatic sinusoidal and occluded vein were measured. RESULTS: The splenectomy and ligature of the left gastric vein determined low morbidity and null mortality. It determined significant addition to the following variables: diameters of the common and proper hepatic artery; diameter of the superior mesenteric vein. It determined non significant increase on the following measurements: right atrial pressure and diameter of the superior mesenteric artery. It determined non significant decrease to the following variables: inferior vena cava pressure; free hepatic vein pressure; occluded hepatic vein pressure; sinusoidal pressure, diameter of the portal vein. CONCLUSION: Splenectomy and ligature of the left gastric vein do not determine portal hemodynamic changes capable of breaking the functional hemodinamic balance that characterizes the hepatosplenic mansoni schistosomiasis.

Fernanda Maria Fernández, Pereira; João, Evangelista-Neto; Norma, Brito; Fernando, Amaral; Olival Cirilo Lucena da, Fonseca-Neto; Cláudio Moura, Lacerda.

2013-12-01

261

Vena cava filters in cancer patients: experience with 50 patients Filtros de veia cava inferior em pacientes com câncer: experiência em 50 casos  

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Full Text Available OBJECTIVE: To study the immediate and late results obtained from the implantation of vena cava filters in cancer patients with deep vein thrombosis concomitant with neoplasia. METHODS: This was a retrospective evaluation of 50 patients with an association of cancer and deep venous thrombosis who underwent interruption of the inferior vena cava and the insertion of permanent vena cava filters. The indications for the procedure, filter implantation technique, early and late complications related to the operation, and the clinical evolution were evaluated. RESULTS: The most frequent indication for filter implantation was the contraindication for full anticoagulant treatment (80%. The femoral vein was the preferred access route (86% of the patients. There were no complications related to the surgical procedure. During the follow-up, the following complications were observed: 1 episode of nonfatal pulmonary thromboembolism, 2 cases of occlusion of the inferior vena cava, and 1 case of thrombus retained in the device. Twenty patients (40% died due to progression of the neoplasm. CONCLUSIONS: Interruption of the inferior cava vein using an endoluminal filter is a procedure with a low rate of complications. It is a safe and efficient measure for preventing pulmonary embolism in cancer patients who have deep vein thrombosis of the lower limbs.OBJETIVO: Estudar os resultados imediatos e tardios obtidos com a implantação de filtros de veia cava inferior em pacientes com trombose venosa profunda concomitante a neoplasia. MÉTODOS: Avaliamos retrospectivamente 50 pacientes com câncer e trombose venosa profunda associada submetidos a interrupção de veia cava inferior com filtros intraluminais definitivos. Foram estudados aspectos referentes à indicação do procedimento, à técnica de implante dos dispositivos, complicações precoces e tardias relacionadas à operação e à evolução dos pacientes. RESULTADOS: A indicação mais freqüente para o procedimento foi a impossibilidade de anticoagulação plena (80% e a via de acesso preferencial foi a punção da veia femoral, realizada em 86% dos pacientes. Não houve complicações relativas ao implante dos filtros. Durante a evolução ocorreram: um episódio de tromboembolia pulmonar não fatal e dois casos de oclusão da veia cava inferior; em um paciente foi demonstrada a presença de coágulo retido no dispositivo. Vinte pacientes (40% faleceram devido à neoplasia. CONCLUSÃO: A interrupção da veia cava inferior com filtro endoluminal é um procedimento com baixo índice de complicações e eficaz na prevenção da embolia pulmonar nos pacientes com tromobose venosa profunda de membros inferiores portadores de câncer.

Antonio Eduardo Zerati

2005-10-01

262

Vena cava filters in cancer patients: experience with 50 patients / Filtros de veia cava inferior em pacientes com câncer: experiência em 50 casos  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese OBJETIVO: Estudar os resultados imediatos e tardios obtidos com a implantação de filtros de veia cava inferior em pacientes com trombose venosa profunda concomitante a neoplasia. MÉTODOS: Avaliamos retrospectivamente 50 pacientes com câncer e trombose venosa profunda associada submetidos a interrupç [...] ão de veia cava inferior com filtros intraluminais definitivos. Foram estudados aspectos referentes à indicação do procedimento, à técnica de implante dos dispositivos, complicações precoces e tardias relacionadas à operação e à evolução dos pacientes. RESULTADOS: A indicação mais freqüente para o procedimento foi a impossibilidade de anticoagulação plena (80% ) e a via de acesso preferencial foi a punção da veia femoral, realizada em 86% dos pacientes. Não houve complicações relativas ao implante dos filtros. Durante a evolução ocorreram: um episódio de tromboembolia pulmonar não fatal e dois casos de oclusão da veia cava inferior; em um paciente foi demonstrada a presença de coágulo retido no dispositivo. Vinte pacientes (40%) faleceram devido à neoplasia. CONCLUSÃO: A interrupção da veia cava inferior com filtro endoluminal é um procedimento com baixo índice de complicações e eficaz na prevenção da embolia pulmonar nos pacientes com tromobose venosa profunda de membros inferiores portadores de câncer. Abstract in english OBJECTIVE: To study the immediate and late results obtained from the implantation of vena cava filters in cancer patients with deep vein thrombosis concomitant with neoplasia. METHODS: This was a retrospective evaluation of 50 patients with an association of cancer and deep venous thrombosis who und [...] erwent interruption of the inferior vena cava and the insertion of permanent vena cava filters. The indications for the procedure, filter implantation technique, early and late complications related to the operation, and the clinical evolution were evaluated. RESULTS: The most frequent indication for filter implantation was the contraindication for full anticoagulant treatment (80%). The femoral vein was the preferred access route (86% of the patients). There were no complications related to the surgical procedure. During the follow-up, the following complications were observed: 1 episode of nonfatal pulmonary thromboembolism, 2 cases of occlusion of the inferior vena cava, and 1 case of thrombus retained in the device. Twenty patients (40%) died due to progression of the neoplasm. CONCLUSIONS: Interruption of the inferior cava vein using an endoluminal filter is a procedure with a low rate of complications. It is a safe and efficient measure for preventing pulmonary embolism in cancer patients who have deep vein thrombosis of the lower limbs.

Antonio Eduardo, Zerati; Nelson, Wolosker; Guilherme, Yazbek; Marcel, Langer; Kenji, Nishinari.

2005-10-01

263

Procesos Alternativos de Combustión en Motores de Combustión Interna. Procesos Alternativos de Combustión en Motores de Combustión Interna  

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Full Text Available La combustión por compresión de una mezcla pobre homogénea, o premezclada, ha surgido en los últimos años como una alternativa para la reducción simultánea de las emisiones de óxidos de nitrógeno (NOx y partículas (PM en los motores de combustión interna. Este novedoso proceso se puede considerar como un híbrido entre los motores de encendido provocado (MEP y los de encendido por compresión (MEC, ya que usa una mezcla homogénea (o altamente premezclada de aire-combustible como en los motores de encendido provocado, pero la mezcla se comprime hasta su auto-ignición, como en los motores de encendido por compresión. Aunque el nombre más usado para identificar este novedoso proceso de combustión ha sido el de HCCI (Homogeneous Charge Compression Ignition, en la literatura han aparecido una gran variedad de sistemas que aplican este concepto. En este trabajo se presenta una revisión de dichos sistemas. Combustion by compression of a lean and homogeneous (or premixed air-fuel mixture has recently emerged as an effective alternative to achieve simultaneous nitrogen oxides (NOx and particulate matter (PM reduction in internal combustion engines. This novel process can be considered as a hybrid between the spark ignition (SI and the compression ignition (CI combustions. To obtain it is necessary to generate a homogeneous (or highly premixed mixture of fuel and air (such as SI combustion, but this mixture is compressed up to its auto ignition limit (such as DI combustion. Even though this process has been identified as Homogeneous Charge Compression Ignition (HCCI, a variety of systems that use this concept have recently appeared. This document presents a review of such systems.

S. Martínez-Martínez

2012-02-01

264

Adult mouse venous hypertension model: common carotid artery to external jugular vein anastomosis.  

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The understanding of the pathophysiology of brain arteriovenous malformations and arteriovenous fistulas has improved thanks to animal models. A rat model creating an artificial fistula between the common carotid artery (CCA) and the external jugular vein (EJV) has been widely described and proved technically feasible. This construct provokes a consistent cerebral venous hypertension (CVH), and therefore has helped studying the contribution of venous hypertension to formation, clinical symptoms, and prognosis of brain AVMs and dural AVFs. Equivalent mice models have been only scarcely described and have shown trouble with stenosis of the fistula. An established murine model would allow the study of not only pathophysiology but also potential genetic therapies for these cerebrovascular diseases. We present a model of arteriovenous fistula that produces a durable intracranial venous hypertension in the mouse. Microsurgical anastomosis of the murine CCA and EJV can be difficult due to diminutive anatomy and frequently result in a non-patent fistula. In this step-by-step protocol we address all the important challenges encountered during this procedure. Avoiding excessive retraction of the vein during the exposure, using 11-0 sutures instead of 10-0, and making a carefully planned end-to-side anastomosis are some of the critical steps. Although this method requires advanced microsurgical skills and a longer learning curve that the equivalent in the rat, it can be consistently developed. This novel model has been designed to integrate transgenic mouse techniques with a previously well-established experimental system that has proved useful to study brain AVMs and dural AVFs. By opening the possibility of using transgenic mice, a broader spectrum of valid models can be achieved and genetic treatments can also be tested. The experimental construct could also be further adapted to the study of other cerebrovascular diseases related with venous hypertension such as migraine, transient global amnesia, transient monocular blindness, etc. PMID:25650793

Yang, Shun-Tai; Rodriguez-Hernandez, Ana; Walker, Espen J; Young, William L; Su, Hua; Lawton, Michael T

2015-01-01

265

Passage of extravascular tracers into canine jugular veins and carotid arteries.  

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Biologically active substances arising in the interstitial space (cell-fiber matrix) of a medium-sized blood vessel or in surrounding tissue might reach the lumen by diffusion. Substances so delivered to the vessel wall-blood interface would be situated to effectively influence the endothelium and to initiate deposition of blood elements on the luminal surface of vessels, thereby contributing to thrombosis and atherosclerosis. This study showed that 125I, 125I-albumin and 125I-fibrinogen passed across the walls of segments of canine jugular veins and carotid arteries that were maintained under 20 cm H2O presure while being suspended in solutions containig the radioactive substances. The ratio of 125I to 125I-protein (albumin, fibrinogen) was predictably greatly increased by diffusion across the vessel wall. Frozen sections cut parallel with the luminal surface of flattened segments of vessels showed a gradient of radioactivity from adventitial to luminal surface of the vessels. Part of the fibrogen (but no albumin) that had reached the inside of the vessel had been broken down into fragments. These observations show that ions and proteins originating in perivascular fluid transverse the wall of medium-sized veins and arteries, presumably by diffusion across complex water-filled channels. Thus biologically active substances arising in perivascular tissue or in the vessel wall itself can be expected to reach the luminal surface of the vessel wall where they can influence endothelium and/or initiate deposition of blood elements on the vessel wall. Furthermore, the action of proteolytic enzymes on protein molecules such as zymogens might give rise to active substances not previously present. PMID:7400663

Stewart, G J; Stewart, D D; Philbin, J F; Stern, H S

1980-08-01

266

Ultrasonic quantitative detection of elasticity of jugular vessel wall of female pilots and its application value  

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Full Text Available Objective To observe the elasticity of the jugular vessel wall of female aerotransport pilots on active duty,provide a reference for the selection of female pilots,and the prevention and therapy of cardiovascular diseases in female pilots.Methods Using the Echo-Tracking technique,the elastic parameters of the carotid artery were quantitatively detected in nineteen female pilots who were first selected as female astronauts.Twenty male pilots who were selected as astronauts were randomly chosen as the control group.No statistical difference in age and blood pressure between the two groups was found.No history of cardiovascular diseases was recorded,and no abnormal signs were revealed in the results of the physical examination.Electrocardiogram,chest radiography,hepatic and kidney function,and biochemical examination showed normal results.The factors affecting the elasticity of the artery could possibly be avoided for the male pilots except for the fighter pilots or the smokers.Results No statistical difference was found in the clinical and biochemical data between the pilot groups(P > 0.05.As for carotid artery elastic parameters,no statistical difference between the left and right sides of the artery was indicated.The elastic modulus,arterial stiffness index,and pulse wave velocity of the carotid artery wall of the female pilots were significantly lower than those of the male pilots(P < 0.05,and the arterial compliance was significantly higher than that of the male pilots(P < 0.05.Conclusion All of the elastic parameters of the vessel wall of female pilots were better than those of the male pilots.

Long-fang ZHANG

2011-11-01

267

Vigilancia epidemiológica de la intoxicación aguda en el Área Sur de la Comunidad de Madrid: Estudio VEIA 2000 / Epidemiologic survey of acute poisoning in the south area of the Community of Madrid: The VEIA 2000 Study  

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Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Objetivo: Extensos estudios observacionales sobre intoxicaciones agudas (IA) permiten detectar cambios de tendencia imprescindibles para diseñar actuaciones preventivas. VEIA es un estudio evolutivo de las IA atendidas en Urgencias del Hospital 12 de Octubre de Madrid en periodos anuales completos [ [...] 1979 (1,2), 1985 (3), 1990 (4), 1994 (5) y 1997 (6)], presentamos el 2000 y comparamos los resultados con los previos. Métodos y resultados: El método se mantiene idéntico. 1.128 IA 88% voluntarias. 451 intentos de suicidio. Las benzodiazepinas son el 44% de los medicamentos; El alcohol el 75% de los tóxicos no farmacológicos y las drogas el 19%. Conclusiones: En las mujeres aumentan las IA por alcohol y drogas y disminuyen los intentos de suicidio, ello supone una aproximación de los roles hombre/mujer. Hay un envejecimiento en los IS (¿se “pasa de moda” suicidarse entre los jóvenes?) y advertimos dos pautas: IS con medicamentos con 0,1% de mortalidad y por no-medicamentos con 3%. Dos de cada cinco hombres con IS son adictos. Disminuyen las benzodiazepinas, el paracetamol sustituye a la Aspirina y los AINE a los restantes analgésicos. El alcohol es el tóxico no-farmacológico predominante, pero disminuye un 11%. Las drogas, que ahora superan a los venenos tradicionales (gases, disolventes, etc.) suponen un 40% más que en 1997. Al comparar 1994 y 2000, la heroína no cambia pero la cocaína pasa de 13 casos a 67 y las anfetaminas tipo MDMA crecen de modo geométrico. Abstract in english Objective: Extensive observational studies of acute intoxications (AI) allow the detection of trend changes indispensable for the design of preventive actions. VEIA is an evolutional study of AI attended at the Emergency Services of the Hospital “Doce de Octubre” of Madrid over all-round annual peri [...] ods (1979, 1985, 1990, 1994 and 1997); we present the results of 2000 and compare them with those of previous years. Methods and results: An identical method was used. The hospital attended 1,128 AI, 88% of them voluntary. There were 451 suicide attempts. Forty four per cent of drugs involved were benzodiazepines. Alcohol represented 75% of non-pharmacological toxic substances and drugs, 19%. Conclusions: An increase of AI caused by alcohol and drugs was observed among women, as well as a decrease of suicide attempts, which reflects an approximation of man/woman roles. An aging trend was observed in suicide attempts (Is suicide “outmoded” among young people?), along with two patterns: Suicide attempts with drugs had a mortality rate of 0.1% and suicide attempts without drugs, of 3%. Two out of five men attempting suicide had drug addictions. There had been a reduction of benzodiazepines use and substitution of aspirine for paracetamol and of other analgesics for NSAID. Alcohol was the predominant non-pharmacological toxic substance, but had decreased 11%. Drugs, that had surpassed the traditional poisons (gases, solvents, etc.) represented 40% more than in 1997. When 1994 and 2000 were compared, heroine had not changed significantly, but cocaine had increased from 13 cases to 67 and amphetamines type MDMA had increased geometrically

P. J., Caballero Vallés; S, Dorado Pombo; B, Jerez Basurco; M, Medina Sampedro; B, Brusínt Olivares.

2004-02-01

268

Estudo anatômico da artéria torácica interna aplicado à cirurgia cardiovascular  

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Full Text Available Com a intensa utilização da artéria torácica interna (ATI na operação de revascularização do miocárdio, estudamos sua anatomia com a finalidade de esclarecer aspectos morfológicos que possibilitem extender sua utilização e prevenir complicações pós-operatórias. Em 100 cadáveres foram retirados os plastrões esternocostais e injetadas as ATIs com Látex Neoprene. A ATI originou-se diretamente da artéria subclávica em 82,5% e de um tronco comum com outras artérias em 17,5%. O comprimento médio foi de 20,4 ± 2,1 cm e o ponto de terminação mais freqüente foi ao nível do 6º espaço intercostal (e.i. (52,5%. A forma de terminação se fez como bifurcação em 93% e como trifurcação em 7%. A relação da ATI com a margem esternal foi de 10,3 ± 3,2 mm ao nível do 1º e.i. e 19,2 ± 6,0 mm ao nível do 6º e.i. A ATI está recoberta pelo músculo transverso do tórax numa extensão média de 7,5 ± 2,7 cm e apresenta o ramo costal lateral em 15%. O nervo frênico é anterior à ATI em 70% e posterior em 30%. O estudo forneceu subsídios que podem contribuir para minimizar as complicações pós-operatórias.The internal thoracic artery (ITA was studied because of its increased utilization in myocardial revascularization surgery due to the excellent long-term results. A review of its anatomical characteristics to clear some morphological aspects was made, aiming to help the extension of its utilization and prevent operative complications. The study was carried out in 100 cadavers; the anterior sternocostal wall of the thorax was removed and the arteries were injected with Neoprene Latex. The ITA originated directly from the subclavian artery in 82.5% and from a common trunk with other arteries in 17.5%. Its lenght was 20.4 ± 2.1 cm in average and the most frequent end point was the 6th intercostal space (52.5%. The end point form was as bifurcation in 93% and as trifurcation in 7%. The relation of ITA with the sternal margins was, on average, 10.3 ± 3.2 mm at the level of first intercostal space and 19.2 ± 6.0 mm at the level of 6th intercostal space. It was covered by the transverse muscle of thorax in a distance of 7.5 ± 2.7 cm long (average and the lateral costal branch was present in 15%. The ITA was crossed anteriorly by phrenic nerve in 70% and posteriorly in 30%. Informations provided by this study may help prevent complications in ITA dissections and to improve our knowledgement on its anatomical characteristics.

Jorge A HENRIQUEZ-PINO

1997-01-01

269

Estudo anatômico da artéria torácica interna aplicado à cirurgia cardiovascular  

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Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Com a intensa utilização da artéria torácica interna (ATI) na operação de revascularização do miocárdio, estudamos sua anatomia com a finalidade de esclarecer aspectos morfológicos que possibilitem extender sua utilização e prevenir complicações pós-operatórias. Em 100 cadáveres foram retirados os p [...] lastrões esternocostais e injetadas as ATIs com Látex Neoprene. A ATI originou-se diretamente da artéria subclávica em 82,5% e de um tronco comum com outras artérias em 17,5%. O comprimento médio foi de 20,4 ± 2,1 cm e o ponto de terminação mais freqüente foi ao nível do 6º espaço intercostal (e.i.) (52,5%). A forma de terminação se fez como bifurcação em 93% e como trifurcação em 7%. A relação da ATI com a margem esternal foi de 10,3 ± 3,2 mm ao nível do 1º e.i. e 19,2 ± 6,0 mm ao nível do 6º e.i. A ATI está recoberta pelo músculo transverso do tórax numa extensão média de 7,5 ± 2,7 cm e apresenta o ramo costal lateral em 15%. O nervo frênico é anterior à ATI em 70% e posterior em 30%. O estudo forneceu subsídios que podem contribuir para minimizar as complicações pós-operatórias. Abstract in english The internal thoracic artery (ITA) was studied because of its increased utilization in myocardial revascularization surgery due to the excellent long-term results. A review of its anatomical characteristics to clear some morphological aspects was made, aiming to help the extension of its utilization [...] and prevent operative complications. The study was carried out in 100 cadavers; the anterior sternocostal wall of the thorax was removed and the arteries were injected with Neoprene Latex. The ITA originated directly from the subclavian artery in 82.5% and from a common trunk with other arteries in 17.5%. Its lenght was 20.4 ± 2.1 cm in average and the most frequent end point was the 6th intercostal space (52.5%). The end point form was as bifurcation in 93% and as trifurcation in 7%. The relation of ITA with the sternal margins was, on average, 10.3 ± 3.2 mm at the level of first intercostal space and 19.2 ± 6.0 mm at the level of 6th intercostal space. It was covered by the transverse muscle of thorax in a distance of 7.5 ± 2.7 cm long (average) and the lateral costal branch was present in 15%. The ITA was crossed anteriorly by phrenic nerve in 70% and posteriorly in 30%. Informations provided by this study may help prevent complications in ITA dissections and to improve our knowledgement on its anatomical characteristics.

Jorge A, HENRIQUEZ-PINO; Walter José, GOMES; José Carlos, PRATES; Ênio, BUFFOLO.

1997-01-01

270

[Jugular vein thrombosis caused by hypercoagulability following in-vitro fertilization-activated protein C resistance and immobilization].  

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Jugular vein thrombosis (JVT) is extremely difficult to diagnose clinically because of its rarity, the wide range of possible symptoms and the variety of differential diagnoses. A rapid diagnosis is important in order to avoid or prevent imminent life-threatening complications. This study reports a clinical case of extensive JVT due to increased thrombophilia in conjunction with ovarian hyperstimulation syndrome (OHSS) after in vitro fertilization, increased APC resistance and immobilization. It also discusses the current literature that forms the basis for recommendations regarding the diagnosis, therapy and interdisciplinary management. PMID:22532279

Stölzel, K; Jovanovic, S; Albers, A E

2013-03-01

271

Throbbing tinnitus in aberrant internal carotid artery aggravated by elevation of the jugular bulb. A case report  

International Nuclear Information System (INIS)

Vascular anomalies in the middle ear are rarely observed. They cause no symptoms in the majority of cases, although some may be associated with tinnitus. The false diagnosis of glomus tumour may lead to considerable problems, if surgery is performed. It is therefore necessary that precise pre-operative data are obtained, preferably based on contrast-enhanced computerized tomography. Subsequent 2D and 3D image reconstructions provide further vascular findings regarding the topographic and anatomic factors involved and eliminate the need for invasive angiography of the carotid artery or retrograde jugular venography to make a firm diagnosis. (orig.)

272

Bilateral surgical reconstruction for internal jugular veins disease in patients with chronic cerebrospinal venous insufficiency and associated multiple sclerosis.  

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Chronic cerebrospinal venous insufficiency (CCSVI) is a vascular condition characterized by morphologic alterations involving efferent cerebral vascular paths. CCSVI has been implicated as a contributing factor to multiple sclerosis (MS) but this theory is highly controversial. We report 3 cases of CCSVI patients with MS who had undergone internal jugular veins (IJVs) angioplasty to restore vessels patency. All patients reported significant symptomatic improvement after angioplasty until symptoms recurred after restenosis of the treated IJVs. Surgical IJVs reconstruction was performed. Patients' symptoms gradually improved and the benefits were maintained at the 1-year follow-up. PMID:24704584

Spagnolo, Salvatore; Scalise, Filippo; Barbato, Luciano; Grasso, Maria Antonietta; Tesler, Ugo F

2014-10-01

273

Direct spread of thyroid follicular carcinoma to the parotid gland and the internal jugular vein: a case report  

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Full Text Available Abstract Introduction The parotid gland and the great cervical veins are very rarely involved in a metastatic thyroid cancer. Case presentation We report an interesting case of an unusual metastasis of a thyroid follicular carcinoma including the histopathological and radiological findings. A woman was seen in the otolaryngology clinic with a mass at the angle of the left side of her jaw. Clinical examination and investigations confirmed a thyroid follicular carcinoma with metastases to the parotid gland and the internal jugular vein. Conclusion This is an educational case which highlights the importance of close communication between clinicians, histopathologists and radiologists to ensure that such rare cases are not missed.

Alzaraa Ahmed

2008-09-01

274

Complexo miointimal das carótidas comum e interna em portadores de esquistossomose mansônica hepatoesplênica / Intima-media thickness of common and internal carotid arteries in patients with hepatosplenic schistosomiasis mansoni  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Avaliar a espessura do complexo miointimal (IMT) das carótidas comum e interna, em portadores de esquistossomose hepatoesplênica (EHE) não tratados cirurgicamente, já submetidos a cirurgia para descompressão do sistema porta por esplenectomia e ligadura da veia gástrica esquerda, e compara [...] r com volutários de condições sócio-econômico-ambientais similares, não portadores de esquistossomose. MÉTODOS: Utilizando aparelho de ultra-som Doppler de 7,5MHz foram mensurados os IMT de três grupos de voluntários, de ambos os gêneros, com idades que variaram de 20 a 60 anos, sendo avaliados os IMT máximos, IMT médios, IMT mínimos e seus desvios-padrão, das carótidas comuns e internas e feitas as comparações entre os grupos e suas associações com fatores de risco: idade, hipertensão arterial e tabagismo. RESULTADOS: Não houve diferença significante na média dos IMT, entre os lados direito e esquerdo e nem entre os grupos. Nos pacientes tratados cirurgicamente, assim como nos indivíduos-controle confirmou-se a associação, já conhecida, com os fatores de risco para aterosclerose (idade, hipertensão arterial e tabagismo). Contudo, não se observou este comportamento nos pacientes não operados. CONCLUSÃO: A EHE sem tratamento cirúrgico parece conferir "alguma proteção" contra a aterogênese em seres humanos; todavia, os achados não dão suporte definitivo a esta hipótese. Abstract in english OBJECTIVE: To evaluate the intima-media thickness (IMT) of common and internal carotid arteries in patients with hepatosplenic schistomiasis mansoni and those who underwent portal decompression surgery (splenectomy and left gastric artery ligature). Both groups were compared with a health volunteer [...] control group, living in the same social-economic-environmental conditions. MEHTODS: An ultrasound Doppler with a 7.5 MHz probe was used. The IMT was measured in the three groups with 20 individuals each, of both gender, with ages ranging from 20 to 60 years. The mean and standard deviations of common and internal carotid arteries maxIMT, medIMT, minIMT were assessed. Risk factors: age, systemic arterial hypertension and cigarette smoking were investigated as regard to IMT measurements. RESULTS: There were no statistical differences in IMT between right and left side, and among surgical, non-surgical and control groups. The surgical treated patients and controls showed correlation to known atherosclerotic risk factors: age, hypertension and cigarette smoking. However, non-surgically treated patients did not present the same correlation. CONLCUSION: It is tempting to believe that non-operated schistosomotic patients may have "some protection" against atherogenesis in human beings; however, the data do not lend full support to this hypothesis.

André Valença, Guimarães; Carlos Teixeira, Brandt; Adriana, Ferraz.

2009-08-01

275

An experimental study on MR imaging of jugular venous thrombosis in dogs  

International Nuclear Information System (INIS)

This study was designed to evaluate the potential application of MRI in differentiating static blood from thrombus, age-related changes of thrombus and the signal differences of the intravascular thrombus in various pulse sequences. External jugular vein was ligated at both upper and lower ends to from a static blood column, and thrombin was injected into the column to cause venous thrombosis in a total of 15 mongrel dogs. The MR images were obtained with T1- and T2-weighted spin echo and gradient echo techniques, lmmediately after the formation of static blood and after 2 hour, 1 day, 1 week, 2 weeks and 4 weeks of the formation of thrombus at a 2.0 T MR unit. The signal intensities of the thrombus and adjacent muscles were compared subjectively, and the signal intensity ratio was compared objectively by the measurement of the signal intensities using a cursor. The MRI findings were compared with histologic findings. The signal intensities of static blood were hyperintense in all pulse sequences, and those of 2 hour, 1 day and 1 week old thrombi were hyperintense in all pulse sequence. The number of experimental thrombi which showed isointensity on T1- and T2-weighted image, and hyperintensity on gradient echo image increased as thrombi aged. The signal intensities of 2 week old thrombus were isointense on T1-weighted image, hyperintense on T2-weighted image, and hyperintense on gradient echo image, while those of 4 week old thrombus were isointense on T1-weighted anthrombus were isointense on T1-weighted and T2-weighted image, and hypointense on gradient echo image in most experimental thrombi. There was a tendency to decrease in a signal intensity ratio as thrombi aged on T1-weighted, T2-weighted and gradient echo images(p<0.01). Histologically, thrombus was not formed and lumen was filled with many red blood cells(RBCs) in 2 hour old specimen, but fibrin mesh was visible and RBCs decreased in number in 1 day old specimen. In 1 week old specimen, vessel was contrasted and lumen was filled with thrombus, RBCs, platelets, many fibrins and capillary like structures. The histologic findings of 2 week old thrombus were similar to those of 1 week old one except calcification. In 4 week old specimen, vessels were contrasted and lumen was obliterated with fibrosis and organization of the thrombus. Therefore, it is possible diagnose thrombus, and to assess sequential changes of MRI findings of thrombus by using all pulse sequences, and these results can be essential bases for the interpretation of MR images of patients with venous thrombosis

276

Morphological and positional relationships between the sigmoid sinus and the jugular bulb.  

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The purpose of this study was to determine the quantitative relationships between the positions of the sigmoid sinus (SS) and jugular bulb (JB) and the influence of mastoid pneumatization upon these structures. The investigations were carried out on 116 healthy adult ears based on the axial images of computed tomography (CT). The reference system locating the displacements of the SS and JB was established and the shape and position of the SS and JB were measured. The volume of pneumatization was quantitatively measured based on the serial digital images of CT. The method of partial correlation analysis was used to find the real relationship of two variables from the complicated dependence relationships. There was a tendency for the SS in the males to be situated more laterally and more backwardly, and the JB in the males was situated more laterally with thicker lateral bone wall when compared to the females. When compared to the left side, the SS on the right side tended to protrude more deeply and was situated more laterally and with less thickness of the lateral bone wall. In male, the right SS was situated more anteriorly than the left SS. In female, the right JB was situated more posteriorly than the left JB. There was a tendency for the SS to be situated more medially, to have a thicker lateral bone wall, and to protrude more superficially in the well-pneumatized bones. When the pneumatization was well, the JB tended to be situated more backwards and have a thicker lateral bone wall. However, there was no significant difference of pneumatization between the high JB group and the low JB group. The SS position and JB position changed synchronously in forward-backward or medial-lateral directions. The results suggest that the factors that influence the shape and position of the SS and JB are multiple. The results suggest that the morphological and positional relationships between the SS and the JB are complicated but could be grasped. The development of the cranial base, the temporal bone pneumatization and non-synchronous dural venous development between the right and left sides are considered to contribute to the morphological and positional changes of the SS and JB. PMID:17962901

Dai, Pei-Dong; Zhang, Hong-Qi; Wang, Zheng-Min; Sha, Yan; Wang, Ke-Qiang; Zhang, Tian-Yu

2007-12-01

277

Medición de par en el eje de salida de un motor de combustión interna alternativo  

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Full Text Available Este articulo muestra el diseño, construcción e implementación de un sistema para la medición de Torque en el eje de salida de un motor de combustión interna. Para este proyecto se empleó un motor de combustión interna alternativo a gasolina, un dinamómetro hidráulico, una celda de carga y un sistema de instrumentación para recoger y acondicionar las señales; el motor se hace girar a distintas revoluciones y a diferentes regímenes de carga, para luego obtener la curvas Torque versus RPM y Potencia versus RPM.

Carlos A. Montilla M

2007-01-01

278

A veia gástrica esquerda como alternativa de revascularização portal no transplante hepático / Left gastric vein as an alternative of portal revascularization in liver transplant  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Trombose ou hipoplasia da veia porta não tem sido, ainda, considerados contra-indicações para o transplante ortotópico de fígado. Contudo, permanecem com obstáculos associados com aumento da freqüência de falha primária e a longo prazo do transplante de fígado. Existem alguns fatores de risco tais c [...] omo: sexo masculino, cirrose avançada, doença hepática alcoólica e cirurgia prévia para hipertensão portal. Os autores relatam o caso de uma criança de 4 anos, do sexo feminino, que sofria de doença terminal do fígado resultante de atresia de vias biliares e que tinha submetido, sem sucesso, a uma operação de Kasai. Ela se submeteu a um transplante ortotópico de fígado por cirrose biliar secundária. Durante a cirurgia uma hipoplasia portal severa do receptor foi encontrada. Uma anastomose entre a veia gástrica esquerda do receptor e a veia porta do doador foi feita. Reperfusão hepática e subseqüente função do fígado foram excelentes. A paciente recebeu alta hospitalar no trigésimo dia. A veia gástrica esquerda pode ser uma alternativa para revascularização portal no transplante hepático. Abstract in english Portal vein thrombosis or hipoplasia have not been, anymore, a contraindication for orthotopic liver transplantation. Nevertheless, it remains an obstacle associated with increased incidence of primary and long-term liver failure. There are some risk factors like being male, advanced cirrhosis, alco [...] holic liver disease and previos surgery for portal hypertension. The authors report a case of a 4-yr-old female patient who suffered from end-stage liver disease resulting from biliary atresia with failed Kasai´s operation. She underwent orthotopic liver transplantation for secondary biliary cirrhosis. During surgery a severe recipient portal vein hipoplasia was found. An anastomosis between the recipient left gastric vein and the graft portal vein was performed. Hepatic reperfusion and subsequent liver function were excellent. The patient left hospital on the 30th postoperative day. The left gastric vein can be an alternative of portal revascularization in liver transplant.

Cláudio Moura, Lacerda; Paulo Sérgio Vieira de, Melo; Américo, Amorim; Ricardo, Lima; Mário, Emery; Danielle, Batista; Danielle, Andrade.

2002-02-01

279

A rare association of total anomalous pulmonary venous connection and cor triatriatum / A rara associação de drenagem anômala total de veias pulmonares e cor triatriatum  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese A associação entre drenagem anômala total de veias pulmonares e cor triatriatum é extremamente rara. Enfatizamos a possibilidade de rotura da membrana do cor triatriatum no estudo cineangiocardiográfico pré-operatório, proporcionando melhora significativa do quadro clínico, assim como correção cirúr [...] gica e evolução com sucesso. Abstract in english The association between total anomalous pulmonary venous connection and cor triatriatum is extremely rare. We emphasize the possibility of rupturing the membrane of cor triatriatum in the preoperative cineangiographic study, providing a significant improvement of the clinical features, as well as su [...] rgical correction and successful evolution.

Ulisses Alexandre, Croti; Domingo Marcolino, Braile; Moacir Fernandes de, Godoy; Carlos Alberto, De Marchi.

2003-09-01

280

A rare association of total anomalous pulmonary venous connection and cor triatriatum A rara associação de drenagem anômala total de veias pulmonares e cor triatriatum  

Directory of Open Access Journals (Sweden)

Full Text Available The association between total anomalous pulmonary venous connection and cor triatriatum is extremely rare. We emphasize the possibility of rupturing the membrane of cor triatriatum in the preoperative cineangiographic study, providing a significant improvement of the clinical features, as well as surgical correction and successful evolution.A associação entre drenagem anômala total de veias pulmonares e cor triatriatum é extremamente rara. Enfatizamos a possibilidade de rotura da membrana do cor triatriatum no estudo cineangiocardiográfico pré-operatório, proporcionando melhora significativa do quadro clínico, assim como correção cirúrgica e evolução com sucesso.

Ulisses Alexandre Croti

2003-09-01

281

Efeitos do ultra-som de baixa intensidade na veia auricular de coelhos Effects of low intensity ultrasound in the auricular vein of rabbits  

OpenAIRE

OBJETIVO: Estudar a ação do ultra-som na veia auricular de coelhos. MÉTODOS: Vinte coelhos foram divididos em dois grupos de dez animais diferindo com relação ao local da aplicação, do ultra-som, o modo e o intervalo de tempo para a análise histopatológica (3 e 7 dias). Os animais foram submetidos à aplicação de ultra-som contínuo e pulsado em dois segmentos venosos da orelha previamente determinados. Cada animal foi o seu próprio controle. Empregou-se a freqüência de 3MHz, in...

Marcelo de Araújo; José Carlos Costa Baptista-Silva; Paulo de Oliveira Gomes; Humberto de Oliveira Campos; Neil Ferreira Novo; Yara Juliano

2003-01-01

282

Cerebral venous sinus thrombosis due to spontaneous, progressive, and retrograde jugular vein thrombosis causing sudden death in a young woman.  

Science.gov (United States)

Cerebral venous sinus thrombosis (CVST) is a rare cerebrovascular condition that affects approximately 5 per 1 million people annually, and develops in 0.5 % of all stroke patients. Herein we report a case involving a 31-year-old woman with CVST. She initially presented with a 2-month history of intermittent headaches at the nape of her neck with cervical pain. Other than these symptoms, she was in apparently good health and was a nonsmoker. She had no children and did not take contraceptives. She became comatose with unequal pupil size and CVST was diagnosed. An autopsy revealed CVST that extended from the confluence of the sinuses to the transverse sinuses and tip of the superior sagittal sinus, as well as a thrombus that obstructed the right internal jugular vein. A correct and early diagnosis of CVST combined with heparin-based therapy and/or interventional endovascular strategies may be of benefit by preventing intracerebral extension of jugular venous thrombosis and subsequent serious or even fatal neurological sequelae. PMID:25527307

De-Giorgio, Fabio; Peschillo, Simone; Vetrugno, Giuseppe; d'Aloja, Ernesto; Spagnolo, Antonio G; Miscusi, Massimo

2015-03-01

283

Effect of slow versus rapid rewarming on jugular bulb oxygen saturation in adult patients undergoing open heart surgery  

Science.gov (United States)

Background: A debate has appeared in the recent literature about the optimum rewarming strategy (slow vs. rapid) for the best brain function. This study was designed to compare the effect of slow versus rapid rewarming on jugular bulb oxygen saturation (SjO2) in adult patients undergoing open heart surgery. Materials and Methods: A total of 80 patients undergoing valve and adult congenital heart surgery were randomly allocated equally to rapid rewarming group 0.5 (0.136)°C/min and slow rewarming group 0.219 (0.055)°C/min in jugular bulb sampling was taken before, during and after surgery. Surgery was done at cardiopulmonary bypass (CPB) temperature of 28-30°C and rewarming was performed at the end of the surgical procedure. Results: CPB time, rewarming period were significantly longer in the slow rewarming group. Significant difference was observed in the number of the desaturated patients (SjO2 ? 50%) between the two groups; 14 (35%) in rapid rewarming versus 6 (15%) in the slow rewarming group; P = 0.035 by Fisher's exact test. Conclusions: Slow rewarming could reduce the incidence of SjO2 desaturation during rewarming in adult patients undergoing open heart surgery. PMID:24843328

Ali, Mohmaed Shaaban; Sayed, Sameh Abd Al Rhman; Mohamoud, Maged Salah; Abd-Elshafy, Sayed Kaoud; Almaz, Mohamed Gomaa

2014-01-01

284

First clinical experience in applying XperGuide in embolization of jugular paragangliomas by direct intratumoral puncture  

Energy Technology Data Exchange (ETDEWEB)

The purpose of this study is to introduce a novel image-guided technique utilized in the embolization of jugular paraganglioma tumors, using preoperative diagnostic scans and planning together with perioperative X-ray fluoroscopy in a combined image. A lesion center and a skin entry point on the patient are selected and connected with a straight line, which resembles the most ideal lesion access trajectory to be followed during the needle insertion. The skin entry point and the corresponding line location are selected such that it avoids the impenetrable bones and vital anatomical structures. Two viewing incidence angles are defined to guide the cranial needle insertion: the entry view tangent to the planned trajectory, and the progression view perpendicular to the path. The proposed method was applied in two patients with jugular paragangliomas in order to navigate needles to the lesion location and subsequently embolize the tumors. The perioperative registration took less than 8 s. Using this method, it was possible to guide the needle within 5 mm of the planned path. The fluoroscopic needle navigation, overlaid on the corresponding soft tissue of the underlying anatomy, combined with a planned path, has been shown to be an accurate and efficient tool for needle guidance. The patient pose varied between the preoperative data and the fluoroscopy guided intervention, but this did not hinder the procedure. (orig.)

Spelle, Laurent; Moret, Jacques [Fondation Rothschild Hospital, Interventional Neuroradiology Department, Paris (France); Ruijters, Daniel; Babic, Drazenko; Homan, Robert; Mielekamp, Peter; Guillermic, Jeremy [Philips Healthcare, Cardio/Vascular Innovation, Best (Netherlands)

2009-11-15

285

Effect of the thigh-cuffs on the carotid artery diameter jugular vein section and facial skin edema: HDT study.  

Science.gov (United States)

Objective: To evaluate the distal arterial, venous and skin changes in a group using thigh cuffs during daytime and in a control group. Method: Cardiac, arterial, venous parameters were measured by echography and Doppler. Skin thickness was measured by high frequency echography. Results & discussion: Head down position induced plasma volume reduction, increased cerebral resistance, reduced lower limb resistance. The jugular vein increased whereas the femoral and popliteal veins decreased. All these changes were already observed in previous HDT. Common carotid diameter decreased, Front head skin thickness increased and Tibial skin thickness decreased. Eight hours with thigh cuffs increased the cardiac and carotid sizes which is in agreement with the plasma volume increase. Conversely they reduced the cerebral vascular resistance, jugular section and front head edema which may explain the sensation of comfort reported by the subjects. At the lower limb level the thigh cuffs restored the skin thickness to pre-HDT level but enlarged markedly the femoral and popliteal veins. HR, BP, CO, TPR did not change.

Roumy, Jerome; Diridillou, Stephane; Herault, Stephane; Fomina, Galina; Alferova, Irina; Arbeille, Philippe

2001-08-01

286

Reingreso hospitalario en Medicina Interna / Readmission in internal medicine  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Fundamento: La tasa de reingreso puede ser un índice de calidad asistencial, estando influenciada por múltiples factores(clínicos, derivados del hospital y del propio paciente). Analizamos el reingreso en un área clínica de medicina interna de un hospital de tercer nivel. Material y métodos: Durante [...] 11 meses de 1998 registramos, según un cuestionario estructurado, los reingresos (R) (ingreso en los últimos 5 años) de todos los pacientes ingresados en un área clínica de 8 camas, contabilizando número de ingresos, tiempo hasta el reingreso, área de procedencia (rural, urbana), médico de atención primaria (médico general, especialista en medicina de familia), modo de vida (sólo, familia, residencia, sin techo). Observamos la causa desencadenante del R y la enfermedad causante. Se clasifican como reingreso relacionado (RR) (reingreso por la misma enfermedad o complicación de la misma), multingreso (MR) (reingreso de una misma patología atendida en diferentes servicios del hospital), reingreso evitable (RE) (aquel reingreso que no cumple criterios AEP), y reingreso temprano (RT)(reingreso antes de los 30 dÍas tras el alta). Resultados: De un total de 312 pacientes (edad media 67,93±15,5, 64% varones, estancia media 7,75±4,35 días, ingresos urgente 93%, tasa de mortalidad 3,52%). Fueron R 111 (35,5%), RR 83 (26% del total y 75% de R), MR 68 (61,2 de R y 82% de RR), RT 33 (39,7% de RR) y 16 RE (19% de RR). No hubo diferencias en edades, sexo ni estancia media. Las enfermedades más frecuentes fueron la insuficiencia cardiaca y las enfermedades respiratorias crónicas. Las causas del R fueron empeoramiento de trastorno crónico 41 (37%), manejo inadecuado ambulatorio 24 (22%), mal diagnóstico previo 8 (7%), efecto tóxico-iatrogenia 7 (6%), nueva enfermedad 29 (36%), otros 2 (2%). El número de ingresos previos era de 3,22±2,25 y el tiempo hasta el reingreso de 8,99±11,96 meses. La tasa de mortalidad intrahospitalaria de los R fue de 7,2% (p Abstract in english Background: The readmission rate could be a valuable tool as measurement of hospital quality. Readmissions are due to several factors: clinical, hospital related and patient related. We analyze readmission to internal medicine in a hospital of third level. Material and methods: During 11 months in 1 [...] 988 we counted all readmissions (R) defined as every previous admission occurred in a span of five years into an area of internal medicine composed by 8 beds. We counted number of readmssions, time from the last readmission, living area (city vs country), sort of primary care physician (GP vs family care specialist), living way (single, with family, institution, homeless). Precipitating factors were observed as well as diseases causing it. R were classified as R related (RR) when readmission was provoked by the same pathoiogical condition or a complication. Multi-readmission (MR), those R caused by the same disease process and treated in different areas and ervices of the hospital. Avoidable R (AR), those R which did not fillfil AEP criteria. Early readmission (ER) those R occurring before 30 days after last discharge. Results: Three hundred and eleven patients (mean age 67.93 (SD 15.51), males 64%, mean length of stay 7.75 (SD 4.35), 93% admitted from emergency yard, mortality rate 3.5%) were included. R were 111 (35.5%), RR 83 (26 and 75% of RR), MR 68 (82% of RR), ER 33 (39.7% of RR) and AR 16 (19,2% of RR) patients. The most frequent diseases were heart failure and chronic respiratory diseases. Main causes of R were worsening of chronic disease 41 (37%), non-appropriale ambulatory management 24 (22%) erroneous diagnosis 8 (7%), iatrogenic effec 7 (6%), new disease 29 (26%) and others 2 (2%). Mortality rate in R patients was 7.2% (confidence interval 95% 2 to 9%). Number of readmissions were 3.22 (SD 2.25) and time to readmission 8.99 (SD 11.96) months. Living in city (p

J. L., Alonso Martínez; B., Llorente Díez; M., Echegaray Agara; M. A., Urbieta Echezarreta; C., González Arencibia.

2001-05-01

287

Lemierre’s syndrome: case of a patient with pulmonary embolism and cavernous sinus thrombosis complicating a septic internal jugular vein thrombus  

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Full Text Available Lemierre’s syndrome is a complex and unusual clinical entity, characterized by septic thrombophlebitis of the internal jugular vein. We present the case of a patient with Lemierre’s syndrome, pulmonary embolism and propagation of an internal jugular vein thrombus retrograde to the cavernous sinus. The patient was treated with antibiotics and heparin. The importance of rapid diagnosis of the extent of the disease, in directing the otherwise somewhat controversial treatment with heparin in patients with Lemierre’s syndrome, is stressed.

VOJKO FLIS

2012-10-01

288

Arteriovenous fistula of the A. vertebralis vessels after catheterization of V. jugularis interna  

International Nuclear Information System (INIS)

The article reports on an arterioveneous fistula between the a. vertebralis and the v. vertebralis with blood flowing off via the v. vertebralis, v. cervicalis profunda and v. brachiocephalica. The fistula occurred after application of a central venous catheter to the v. jugularis interna. (orig.)

289

Vermeidung und Behandlungsstrategien iatrogener Verletzungen der Arteria carotis interna bei Operationen der Nasennebenhöhlen  

OpenAIRE

Einleitung: Direkte Verletzungen der Arteria carotis interna (ACI) bzw. der umgebenden Strukturen während endonasaler Siebbeinoperationen sind zwar seltene, dann aber für Patienten und Operateur sehr dramatische Komplikation. In der Literatur werden einzelne Fälle beschrieben, die sich während konventioneller Nasennebenhöhlenchirurgie ereigneten. In aller Regel verstarben die betroffenen Patienten oder hatten ein erhebliches neurologisches Defizit.Methoden: Wir präsentieren einen Fall...

Leunig, A.; Mayer, T.

2005-01-01

290

An atypical case of arising of some parietal branches of the Arteria iliaca interna in man.  

Science.gov (United States)

In the pelvis of a 78 year old man there have been observed deviations in the origin and course os some parietal branches of the A. iliaca interna dextra. Apart from this typically arising and passing branches (the A. glutaea superior dextra, the A. glutaea inferior dextra, the A. umbilicalis dextra) an atypical stem--the Truncus pudendo-obturatorius--comes out of the A. iliaca interna dextra. This stem divides into the A. obturatoria dextra and the A. pudenda accessoria. The A. pudenda accessoria goes through the pelvis and through the fissure between Symphysis and the Diaphragma urogenitale on the Radix penis as the A. dorsalis penis dextra. The A. pudenda interna dextra comes out of the A. pudenda accessoria in a quite atypical way. It enters the fossa ischiorectalis through the fissure in the hind part of the Arcus tendineus m. levatoris ani ventrally from the Spina ischiadica. Its terminal part goes to the right Corpus cavernosum penis as the A. profunda penis dextra. The parietal branches of the A. iliaca interna sinistra arise and go in a typical way. The A. pudenda accessoria is not formed on the left side of the pelvis. PMID:907187

Pác, L; Hamplová, M; Pelcová, O

1977-01-01

291

Appearance of hyperostosis frontalis interna on indium-111 leukocyte scans: potential diagnostic pitfall  

International Nuclear Information System (INIS)

The appearance of hyperostosis frontalis interna on an [111In]leukocyte scan is reported. Recognition of the potential for normal accumulation of 111In-labeled white blood cells within this common process involving the skull is necessary to avoid misdiagnosis

292

Appearance of hyperostosis frontalis interna on indium-111 leukocyte scans: potential diagnostic pitfall  

Energy Technology Data Exchange (ETDEWEB)

The appearance of hyperostosis frontalis interna on an (/sup 111/In)leukocyte scan is reported. Recognition of the potential for normal accumulation of 111In-labeled white blood cells within this common process involving the skull is necessary to avoid misdiagnosis.

Floyd, J.L.; Jackson, D.E. Jr.; Carretta, R.

1986-04-01

293

Hallazgo incidental de hiperostosis frontal interna o síndrome de Morgagni asociado a meningiomas Incidental finding of frontal internal hyperostosis or Morgagni syndrome associated with meningiomas  

OpenAIRE

La hiperostosis frontal interna consiste en un engrosamiento de la tabla interna del hueso frontal. Normalmente se encuentra en mujeres post menopáusicas. Presentamos un caso de hallazgo autópsico incidental de hiperostosis frontal interna o síndrome de Morgagni asociado a meningiomas en una mujer postmenopáusica.Hyperostosis frontalis interna is the accretion of bone on the inner table of the frontal bone. It is commonly found in post-menopausic women. We present an incidental findin...

Subirana Dome?nech, M.; Ortega Sa?nchez, M.; Galte?s Vicente, J. I.; Castella? Garci?a, J.

2012-01-01

294

Subclavian vein angioplasty during arteriovenous fistula surgery: case report and literature review / Angioplastia de veia subclávia no intraoperatório de fístula arteriovenosa: relato de caso e revisão de literatura  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Pacientes portadores de Insuficiência Renal Crônica (IRC) estágio V são geralmente tratados por hemodiálise (HD), preferencialmente por fístula arteriovenosa (FAV). Descrevemos um relato de caso de um paciente de 58 anos, masculino, portador de diabetes mellitus, hipertensão arterial sistêmica e IRC [...] terminal. Seus antecedentes demonstram múltiplos acessos para implante de cateter de hemodiálise, assim como tentativas prévias de realização de FAV. Esse paciente desenvolveu estenose subclínica da veia subclávia, limitando a HD pelo membro superior. O propósito deste relato foi descrever o tratamento endovascular de estenose de veia subclávia, concomitante à realização de uma nova FAV. Abstract in english Patients with chronic kidney disease stage 5 are generally treated by hemodialysis, preferentially performed via an arteriovenous fistula (AVF). We report the case of a 58-year-old male patient with diabetes mellitus, hypertension and end-stage renal disease in whom hemodialysis was conducted via a [...] long-term catheter. His medical record described numerous central venous cannulations and several AVF creations. The patient developed subclinical subclavian stenosis that required creation of a new vascular access route. The purpose of this case report is to describe treatment of subclavian vein stenosis during AVF creation.

Marcus Vinícius Martins, Cury; Marcelo Fernando, Matielo; Ana Carolina, Calixtro; Giuliano de Almeida, Sandri; Marcos Roberto, Godoy; Roberto, Sacilotto.

2012-06-01

295

Subclavian vein angioplasty during arteriovenous fistula surgery: case report and literature review Angioplastia de veia subclávia no intraoperatório de fístula arteriovenosa: relato de caso e revisão de literatura  

Directory of Open Access Journals (Sweden)

Full Text Available Patients with chronic kidney disease stage 5 are generally treated by hemodialysis, preferentially performed via an arteriovenous fistula (AVF. We report the case of a 58-year-old male patient with diabetes mellitus, hypertension and end-stage renal disease in whom hemodialysis was conducted via a long-term catheter. His medical record described numerous central venous cannulations and several AVF creations. The patient developed subclinical subclavian stenosis that required creation of a new vascular access route. The purpose of this case report is to describe treatment of subclavian vein stenosis during AVF creation.Pacientes portadores de Insuficiência Renal Crônica (IRC estágio V são geralmente tratados por hemodiálise (HD, preferencialmente por fístula arteriovenosa (FAV. Descrevemos um relato de caso de um paciente de 58 anos, masculino, portador de diabetes mellitus, hipertensão arterial sistêmica e IRC terminal. Seus antecedentes demonstram múltiplos acessos para implante de cateter de hemodiálise, assim como tentativas prévias de realização de FAV. Esse paciente desenvolveu estenose subclínica da veia subclávia, limitando a HD pelo membro superior. O propósito deste relato foi descrever o tratamento endovascular de estenose de veia subclávia, concomitante à realização de uma nova FAV.

Marcus Vinícius Martins Cury

2012-06-01

296

Trombose de veia central da retina bilateral associada à síndrome de hiperviscosidade sanguínea: relato de caso Bilateral central retinal vein occlusion associated with blood hyperviscosity syndrome: case report  

Directory of Open Access Journals (Sweden)

Full Text Available Relato de caso de um paciente masculino de 16 anos de idade com queixa inicial de baixa da acuidade visual e que no exame oftalmológico foi encontrado edema de papila bilateral, que evoluiu para trombose da veia central da retina em ambos os olhos. Na investigação laboratorial, foi feito diagnóstico de um mieloma múltiplo tipo IgA que cursava com síndrome de hiperviscosidade sanguínea, o que explicava o quadro oftalmológico. Após tratamento específico, o paciente apresentou melhora tanto da acuidade visual quanto do aspecto fundoscópico. O achado de oclusão de veia central da retina bilateral pode levar ao diagnóstico de importantes doenças sistêmicas. os achados fundoscópicos podem servir de parâmetro na avaliação do tratamento.The authors report the case of a 16-year-old male patient who presented with blurred vision and bilateral optic disc edema, then developing bilateral central retinal vein occlusion. On laboratory work-up, he was found to have multiple myeloma IgA along with hyperviscosity syndrome, which led to the ophthalmological features. After proper treatment, the patient recovered visual acuity and normalized his eye fundus changes. Bilateral central retinal vein occlusion finding may yield the diagnosis of major systemic diseases. Fundoscopic features may serve as parameters on treatment evaluation.

John Helal Jr

2005-02-01

297

Splenic vein graft for the reconstruction of the mesenteric-portal trunk after gastroduodenopancreatectomy / Enxerto de veia esplênica na reconstrução do eixo mesentérico-portal após gastroduodenopancreatectomia  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese A ressecção da confluência das veias mesentérica superior e porta tem sido realizada com maior frequência no tratamento de adenocarcinoma do pâncreas, em virtude dos bons resultados relatados, porém pode também ser usada em casos de neoplasias pancreáticas benignas quando firmemente aderidas ao eixo [...] mesentérico-portal. Apesar disso, não existe nenhum estudo sobre o melhor tipo de enxerto venoso para reconstrução do eixo mesentérico-portal quando necessária. A escolha do enxerto dependerá da preferência do cirurgião ou da instituição onde ocorre à cirurgia. Esta nota técnica discute criticamente o uso da veia esplênica como opção para reconstrução do eixo mesentérico-portal após gastroduodenopancreatectomia. Abstract in english Resection of the confluence of the superior mesenteric and portal veins has been performed most frequently in the treatment of adenocarcinoma of the pancreas, in view of the reported positive results, but it can also be used in cases of benign pancreatic neolpasias when they are strongly adhered to [...] the mesenteric-portal trunk. Nevertheless, there is no study on the best type of venous grafts for reconstruction of the mesenteric-portal trunk when required. The choice of graft depends on the preference of the surgeon or the institution. This technical note critically discusses the use of the splenic vein as an option for mesenteric-portal trunk reconstruction after gastroduodenopancreatectomy.

Enio Campos, Amico; José Roberto, Alves; Samir Assi, João.

2014-10-01

298

Prevalência de hipertensão arterial em pacientes com oclusão do ramo da veia central da retina / Prevalence of arterial hypertension in branch retinal vein occlusion patients  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVOS: Identificar em pacientes com oclusão do ramo da veia central da retina utilizando a monitorização ambulatorial da pressão arterial e medidas clínicas da pressão arterial: prevalência de hipertensão e o perfil noturno da pressão arterial. MÉTODOS: Prospectivamente, 93 olhos de 83 pacientes [...] com oclusão do ramo da veia central da retina foram submetidos à avaliação oftalmológica. Após, os pacientes foram encaminhados para avaliação clínica e monitorização da pressão arterial. Pacientes sem descenso da pressão durante o sono ("non-dipper") foram definidos como um declínio na pressão arterial sistólica Abstract in english PURPOSE: To identify in patients with branch retinal vein occlusion using ambulatory blood pressure monitoring and clinical blood pressure measures: hypertension prevalence, and nocturnal profile of blood pressure. METHODS: Prospectively, 93 eyes of 83 patients with branch retinal vein occlusion wer [...] e submitted to ophthalmological examination. Afterwards the patients were submitted to clinical evaluation and blood pressure monitoring. Non-dipper was defined as a fall in systolic blood pressure

Alexandre Antonio Marques, Rosa; Kátia Coelho, Ortega; Décio, Mion Jr.; Yoshitaka, Nakashima.

2008-04-01

299

Jugular venous overflow of noradrenaline from the brain: a neurochemical indicator of cerebrovascular sympathetic nerve activity in humans  

DEFF Research Database (Denmark)

A novel neurochemical method was applied for studying the activity of sympathetic nerves in the human cerebral vascular system. The aim was to investigate whether noradrenaline plasma kinetic measurements made with internal jugular venous sampling reflect cerebrovascular sympathetic activity. A database was assembled of fifty-six healthy subjects in whom total body noradrenaline spillover (indicative of whole body sympathetic nervous activity), brain noradrenaline spillover and brain lipophlic noradrenaline metabolite (3,4-dihydroxyphenolglycol (DHPG) and 3-methoxy-4-hydroxyphenylglycol (MHPG)) overflow rates were measured. These measurements were also made following ganglion blockade (trimethaphan, n = 6), central sympathetic inhibition (clonidine, n = 4) and neuronal noradrenaline uptake blockade (desipramine, n = 13) and in a group of patients (n = 9) with pure autonomic failure (PAF). The mean brain noradrenline spillover and brain noradrenaline metabolite overflow in healthy subjects were 12.5 +/- 1.8, and 186.4 +/- 25 ng min(-1), respectively, with unilateral jugular venous sampling for both. Total body noradrenaline spillover was 605.8 ng min(-1) +/- 34.4 ng min(-1). As expected, trimethaphan infusion lowered brain noradrenaline spillover (P = 0.03), but perhaps surprisingly increased jugular overflow of brain metabolites (P = 0.01). Suppression of sympathetic nervous outflow with clonidine lowered brain noradrenaline spillover (P = 0.004), without changing brain metabolite overflow (P = 0.3). Neuronal noradrenaline uptake block with desipramine lowered the transcranial plasma extraction of tritiated noradrenaline (P = 0.001). The PAF patients had 77% lower brain noradrenaline spillover than healthy recruits (P = 0.06), indicating that in them sympathetic nerve degeneration extended to the cerebral circulation, but metabolites overflow was similar to healthy subjects (P = 0.3). The invariable discordance between noradrenline spillover and noradrenaline metabolite overflow from the brain under these different circumstances indicates that the two measures arise from different sources, i.e. noradrenaline spillover originates from the cerebral vasculature outside the blood-brain barrier, and the noradrenaline metabolites originate primarily from brain noradrenergic neurons. We suggest that measurements of transcranial plasma noradrenaline spillover have utility as a method for assessing the sympathetic nerve activity of the cerebral vasculature Udgivelsesdato: 2009/6/1

Mitchell, D.A.; Lambert, G.

2009-01-01

300

Platelet-activating factor (PAF) in internal jugular venous blood of migraine without aura patients assessed during migraine attacks.  

Science.gov (United States)

The aim of the study was to verify the production of PAF and the activity of PAF acetyl-hydrolase (PAF-AH), the enzyme involved in the catabolism of this phospholipid mediator, in migraine attacks. Their levels were determined during migraine crises in serial samples of internal jugular venous blood taken from five migraine patients without aura, who were admitted to the hospital during the crises. Internal jugular venous blood samples were taken immediately after catheter insertion at 1, 2, and 4 h after attack onset, and within 2 h from its cessation. PAF was purified by high-performance liquid chromatography (HPLC) and determined by radioimmunoassay method. The enzymatic activity of PAF-AH was measured by reverse-phase HPLC, based on the derivatization with 7-diethylaminocoumarin-3-carbonylazide. In the internal jugular venous blood of migraine patients without aura (MO), an increase was observed in PAF levels, which was already evident at the time of catheter insertion (885.6 +/- 82.8) and at the first hour (868.4 +/- 65.24) (ANOVA: P < 0.0001). PAF levels remained elevated through the second (746.8 +/- 82.95), fourth (700.6 +/- 34.93) and sixth hours (644.4 +/- 42.85), and then decreased at the end of the attack, reaching levels significantly lower than those measured at the time of catheter insertion (565.5 +/- 38.34). The activity of PAF-AH showed an opposite trend with higher values at the first hour and significantly lower values at the second and fourth hours from the beginning of the migraine attack (ANOVA: P < 0.02). The increased production of PAF may account for persistent platelet activation during migraine crises, even in the presence of an increased production of nitric oxide (NO) end-products which, on the other hand, should instead intervene in counteracting and limiting platelet activation. Potential sources of PAF production are the endothelial cells from cerebral vessels, stimulated by trigeminal neuropeptides, platelets themselves, and mast cells, as suggested by the neurogenic inflammation model. PMID:15265050

Sarchielli, P; Alberti, A; Coppola, F; Baldi, A; Gallai, B; Floridi, Al; Floridi, Ar; Capocchi, G; Gallai, V

2004-08-01

301

A comparison of outcomes and complications of totally implantable access port through the internal jugular vein versus the subclavian vein.  

Science.gov (United States)

Totally implantable access ports (TIAPs) are generally used in oncology. Few studies have addressed complications associated with the insertion site. A total of 233 consecutive oncology patients were enrolled to receive TIAP inserts via internal jugular vein (IJV) or subclavian vein (SV). Data on clinicopathologic parameters and early/late complications were retrospectively collected. No differences were found early and late complication rates. Catheter injury was observed more frequently in the IJV group (2.9%) than in the SV group (1.0%) without statistical significance. Multivariate logistic regression analysis showed that age, switch to palliative use of TIAP, and the distribution of diseases (low risk in patients with colorectal cancer) were independent risk factors for determining complications. In conclusion, TIAP insertion site showed no impact on the early and late complication rates. Catheter injury appears to occur at the same frequency with both approaches. Therefore, medical doctors may choose their preferred puncture site when performing TIAP insertion. PMID:24670030

Nagasawa, Yoshinobu; Shimizu, Tomoharu; Sonoda, Hiromichi; Mekata, Eiji; Wakabayashi, Masato; Ohta, Hiroyuki; Murata, Satoshi; Mori, Tsuyoshi; Naka, Shigeyuki; Tani, Tohru

2014-01-01

302

Double-vein jugular/inferior vena cava clamp technique for long-term in vivo studies in rats.  

Science.gov (United States)

We present a step-by-step manual for chronic cannulation of rats using a simple technique. This concept facilitates repeated clamping of the same rat over a 6-10-week period, providing a completely separate infusion route from blood sampling access which is placed into mixed venous blood in the inferior vena cava. Permanent catheters implanted into the left external jugular vein and the inferior vena cava were used for miniature blood sampling and recycling. The design and running of clamp experiments and other physiological research models are detailed. Long-term reliable venous access, simple installation, and easy after-care of the rats' cannulas are the principal advantages of the procedure described. PMID:9523892

Burvin, R; Zloczower, M; Karnieli, E

1998-02-15

303

Safety related to the implantation of jugular catheters for haemodialysis and usefulness of PA chest X rays post procedure  

International Nuclear Information System (INIS)

The objective is to determine how safe the implantation of transient double lumen jugular catheters is for hemodialysis in patients with renal disease, and who require dialysis therapy and Posterior Anterior (PA) chest X-Ray post procedure. Design: observational descriptive study. Site: renal units at RTS Ltda. Sucursal Caldas (Hospital Santa Sofia y Hospital Infantil Rafael Henao Toro de la Cruz Roja). Patients: all patients with renal disease in whom it was necessary to do hemodyalitic therapy with implantation of a jugular catheter, with medical records of the events and complications that occurred during the procedure, with subsequent control AP chest X Ray and that showed reports made by the radiologist or physician who carried out the procedure, about the findings in the chest X Ray. Patients with renal disease, in whom jugular catheters had been inserted: Methods: variables such as age, gender, race, body mass index (BMI) etiology of the renal failure,time of evolution of the disease, indications for insertion, priority of catheter insertion, type of catheter inserted, amount of punctures, physician who carried out the procedure and patient's co-morbidities were analyzed. The events considered as complicated were analyzed as well as if there was any relationship with co-morbidities and the analyzed variables. Findings in the PA chest X-Ray were recorded and their relationship with the difficulties encountered during the procedure. A bi-variance analysis was don procedure. A bi-variance analysis was done. The dependent and independent variables were classified in the nominal measurement scale. Results: 774 clinical histories were reviewed. 562 were excluded due to lack of variables and impossibility to read the notes. Men older than de 55 (45,7%). 212 (97.1%) patients with diagnosis of chronic renal disease (CRD) and in whom 238 procedures were carried out. seven patients (2,85%) had acute renal failure (ARF). The fi rst indication for central catheter insertion was in patients with chronic uremia syndrome as well as in patients with IRA uremia encephalopathy. The internist nephrologists did most of the insertions (n=207, 84.5%). In 245 insertions 17 important events were described which corresponded to 6,9% of the procedures. Multiple punctures (more than 3) were reported in nine patients. The post implantation chest X-Ray made it possible to detect 4 complications, meaning 1,6% of the procedures, of which none of them was fatal. No association with the event/complications was found in the variables analyzed. No association between IMC and multiple punctures. Conclusions: the implantation of jugular catheters is an easy procedure with a low rate of events or complications. PA X-Ray provides little information when the procedure is free of complications.

304

A Study on Effects of the Transient Compression by Tightly Tied Necktie on Blood Flow in the Internal Jugular Veins Using 2D-PC MRA  

International Nuclear Information System (INIS)

The 25 healthy male volunteers aged from 20 to 50 years old have been employed in this study. 2D-PC MRA was performed to measure the velocity of the blood flow in the internal carotid artery and internal jugular veins using 3.0T MRI Whole body (signa VH/i GE). ECTRICKS-CEMRA was performed to evaluate the pattern of blood circulation from internal carotid artery to internal jugular vein. Using 2D-PC MRA, the cross-section of the 4th and 5th cervical discs was scanned with 24 cm FOV. Then the speed of blood flow was measured for internal carotid artery and internal jugular vein when the subject wears a necktie tightly and no tie. The average of maximum velocity of internal carotid arteries without a necktie was 72.13 cm/sec in the right side and 74.96 cm/sec in the left side (average 73.54 cm/sec in both sides) while the average of maximum velocity of internal jugular veins without a necktie was -34.45 cm/sec in the right side and -24.99 cm/sec in the left side (-29.72 cm/sec in both sides). However, when wearing a necktie tightly, the average of maximum velocity of internal carotid arteries was 61.35 cm/sec in the right side and 65.19 cm/sec in the left side (average 63.27 cm/sec in both sides) while the average of maximum velocity of internal jugular veins was -22.14 cm/sec in the right side and -17.93 cm/sec in the left side (-20.03 cm/sec in both sides). With the necktie tightly knotted, the average blood flow speed of both internal carotid arteries slightly decreasinternal carotid arteries slightly decreased to 86% (63.27/73.54 cm/sec) compared to no tie case in which both internal jugularveins significantly went down to 67% (-20.03/-29.72 cm/sec). Thus it is suggested that wearing a necktie affects the circulation of internal jugular veins (33% decrease in blood flow speed) more significantly than that of internal carotid artery (14% decrease in blood flow speed). Without a necktie, ECTRICKS-CEMRA showed natural blood circulation patterns of internal carotid arteries and internal jugular veins without any disturbances or compressions. However, when wearing a necktie tightly, ECTRICKS-CEMRA showed severe compression onto both internal jugular veins in all 25 volunteers. In conclusion, the result of the study showed that the tightly worn necktie instantly presses more internal jugular veins than internal carotid arteries, thereby significantly reducing the blood flow speed and leading to the temporary occlusion. Thus, the defecation or washing the face under the tightly tied necktie situations can cause the unexpected and temporary compression or occlusion of the internal jugular veins, subsequently leading to the occurrences of the stroke due to the secondary intracranial venous hypertension.

305

Expression of apoptosis in human saphenous vein grafts in restoration of blood flow through coronary bypass surgery / Expressão da apoptose em enxertos de veias safenas humana para restauração do fluxo sanguíneo coronariano por derivação  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese OBJETIVO: Investigar o possível papel da apoptose em distensões breves de veias safenas humanas em diferentes pressões. MÉTODOS: Segmentos frescos isolados de veia safena humana foram distribuídos em 4 grupos: controle ou distendidos (D) por quinze segundos a 100, 200 e 300 mmHg. O grau de apoptose [...] das caspases 3, 8, 9 e expressão da proteína anti-apoptótica Bcl-2 foram avaliados por imuno-histoquímica. RESULTADOS: Segmentos frescos distendidos isolados de veias safenas humanas apresentaram expressão protéica para apoptose similar às veias controle. No entanto, a expressão de Bcl-2 foi significativamente maior nos segmentos distendidos a 300 mmHg, quando comparados à veia controle. CONCLUSÃO: Estes achados demonstram que segmentos intactos de veias safenas humanas submetidos a distensões em diferentes pressões têm expressão de proteínas apoptóticas similares quando comparados com veias controle nãodistendidas. Por conseguinte, breves distensões comumente realizadas durante a coleta cirúrgica não ativam o processo de apoptose e, provavelmente, não estão envolvidas em mecanismos fisiopatológicos que levam à falência do enxerto Abstract in english OBJECTIVE: To investigate the possible role of apoptosis on brief distensions of human saphenous veins at different pressures. METHODS: Fresh isolated grafts of human saphenous vein were assigned as control or distended (D) for fifteen seconds at 100, 200 and 300 mmHg. The degree of apoptotic caspas [...] es 3, 8, 9 and anti-apoptotic protein Bcl-2 expression were assessed by immunohistochemistry. RESULTS: Fresh isolated segments of distended human saphenous veins presented similar apoptotic protein expression when compared with control veins. However, the Bcl-2 expression was significantly higher in the 300 mmHg distended segments compared with the control vein. CONCLUSION: These findings show that intact segments of human saphenous veins submitted to distensions at different pressures have similar apoptotic proteins expression when compared with non-distended control veins. Therefore, brief distensions commonly performed during surgical harvesting do not trigger apoptosis, and probably are not involved on the physiopathological mechanisms that lead to graft failure

Luís Fernando, Tirapelli; Daniela Pretti da Cunha, Tirapelli; Marcelo Bellini, Dalio; Alfredo José, Rodrigues; Paulo Roberto Barbosa, Évora.

2009-09-01

306

Estudo anatômico da veia braquial comum como via de drenagem colateral do membro superior / Anatomic study of the common brachial vein as a collateral drainage channel of the upper limb  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese CONTEXTO: Traumatismos ou tromboses que possam evoluir com alterações da drenagem venosa do membro superior, dependendo do território interrompido, podem ter como mecanismo compensatório uma via colateral de drenagem sem que haja prejuízo para o retorno venoso desse membro. A veia braquial comum apr [...] esenta-se como uma alternativa plausível e pouco conhecida. OBJETIVO: Descrever a anatomia da veia braquial comum como via de drenagem colateral no membro superior. MÉTODOS: Utilizamos 30 cadáveres do sexo masculino, cujos membros superiores estavam articulados ao tronco, não importando a raça, formolizados e mantidos em conservação com solução de formol a 10%. Utilizamos como critérios de exclusão cadáveres com um dos membros desarticulado ou alterações deformantes em topografia das estruturas estudadas. RESULTADOS: A veia braquial comum esteve presente em 73% (22/30) dos cadáveres estudados, sendo que em 18% (04/22) dos casos drenou para a veia basílica no seguimento proximal do braço e em 82% (18/22), para a veia axilar. CONCLUSÃO: A veia braquial comum está frequentemente presente e, na maior parte das vezes, desemboca na veia axilar. Abstract in english BACKGROUND: Trauma and thrombosis that can result in changes in the venous drainage of the upper limb, depending on the vascular territory interrupted, may have as a compensatory mechanism a collateral drainage channel that prevents damage to the venous return of that limb. The common brachial vein [...] is a plausible and little known collateral channel for this purpose. OBJECTIVE: To describe the anatomy of the common brachial vein as a collateral drainage channel of the upper limb. METHODS: We have dissected 30 cadavers of people of different races, whose upper limbs were articulated to the trunk and preserved in a 10% formaldehyde solution. The exclusion criteria were disarticulated limbs or deformities in the topography of the studied structures. RESULTS: The common brachial vein was present in 73% (22/30) of the cadavers dissected. The common brachial vein drained into the axillary vein in 82% (18/22) and into the basilic vein in the proximal segment of the upper limb in 18% of the cadavers (04/22). CONCLUSION: The common brachial vein is frequently present, and, in most cases, it drains into the axillary vein.

Carlos Adriano Silva dos, Santos; Luiz Francisco Poli de, Figueiredo; Luiz Carlos Buarque de, Gusmão; Aldemar Araújo, Castro; Guilherme Benjamin Brandão, Pitta; Fausto, Miranda Jr; Érica Carla Figueirêdo de, Souza.

2011-03-01

307

Trombose de veia porta após desconexão ázigo-portal e esplenectomia em pacientes esquistossomóticos: Qual a real importância? / Portal vein thrombosis after esophagogastric devascularization and splenectomy in schistosomal portal hypertension patients: What's the real importance?  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese CONTEXTO: A complicação mais frequente após a desconexão ázigo-portal e esplenectomia em doentes com esquistossomose mansônica hepatoesplênica é a trombose da veia porta. OBJETIVOS:Avaliar a incidência, os fatores preditivos dessa complicação, assim como, a evolução clínica, laboratorial, endoscópic [...] a e ultrassonográfica desses pacientes. MÉTODOS: Foram analisados retrospectivamente os prontuários de 155 doentes esquistossomóticos submetidos a desconexão ázigo-portal e esplenectomia. RESULTADOS: Trombose de veia porta foi observada em 52,3% dos pacientes, sendo 6,5% de trombose total e 45,8% de trombose parcial. Os pacientes que evoluíram com trombose de veia porta apresentaram mais frequentemente diarreia no pós-operatório. Febre foi evento habitual que ocorreu em 70% dos casos, mais frequente, entretanto, nos doentes com trombose total da veia porta (100%). Trombose de veia mesentérica superior ocorreu em quatro doentes (2,6%), sendo mais frequente entre os com trombose total da veia porta. Não se encontrou diferença estatística quanto aos parâmetros clínicos, laboratoriais, endoscópicos e recidiva hemorrágica no pós-operatório tardio, quando comparados os pacientes com e sem trombose portal. CONCLUSÕES: A trombose de veia porta no pós-operatório da desconexão ázigo-portal e esplenectomia é evento frequente, sem nenhum fator preditivo para sua ocorrência; na maioria dos casos a trombose é parcial e apresenta evolução benigna, com baixa morbidade; trombose total da veia porta está mais frequentemente associada à trombose da veia mesentérica superior, com elevada morbidade; a trombose da veia porta, parcial ou total, não acarretou complicações no período pós-operatório tardio. Abstract in english CONTEXT: Portal vein thrombosis is the most frequent complication after esophagogastric devascularization and splenectomy for hepatosplenic schistosomosis. OBJECTIVE: To evaluate portal vein thrombosis in 155 patients with schistosomal portal hypertension submitted to esophagogastric devascularizati [...] on and splenectomy. METHODS: We retrospectively analyzed not only the incidence and predictive factors of this complication, but also clinical, laboratorial, endoscopic and Doppler sonography outcome of these patients. RESULTS: Postoperative portal thrombosis was observed in 52.3% of the patients (partial in 45.8% and total in 6.5%). Postoperative diarrhea was more frequent in patients with portal vein thrombosis. Fever was a frequent postoperative symptom (70%) but occurred in a higher percentage when total portal vein thrombosis was present (100%). Superior mesenteric vein thrombosis occurred in four patients (2.6%) and was associated with total thrombosis of the portal vein. There was no statistical difference between patients with and without portal vein thrombosis according to clinical and endoscopic parameters during late follow-up. It was not possible to identify any predictive factor for the occurrence of this complication. CONCLUSIONS: Portal vein thrombosis is an early and frequent event after esophagogastric devascularization and splenectomy, usually partial with benign outcome and low morbidity. Total portal vein thrombosis is more frequently associated with a high morbidity complication, the superior mesenteric vein thrombosis. Long-term survival was not influenced by either partial or total portal thrombosis.

Fábio Ferrari, Makdissi; Paulo, Herman; Marcel Autran C., Machado; Vincenzo, Pugliese; Luiz Augusto Carneiro, D' Albuquerque; William A., Saad.

2009-03-01

308

A Consultoria Interna de Recursos Humanos como Prática Catalisadora da Gestão do Conhecimento Organizacional  

Directory of Open Access Journals (Sweden)

Full Text Available Este artigo objetiva analisar a contribuição da Consultoria Interna de Recursos Humanos para a Gestão do Conhecimento nas indústrias catarinenses de grande porte. Os procedimentos metodológicos seguiram a linha qualitativa, por meio da pesquisa descritiva e aplicada. Foram entrevistadas sete das maiores empresas catarinenses em número de funcionários. Utilizou-se análise documental e de conteúdo. Quanto aos resultados, a consultoria interna auxilia principalmente nas etapas de socialização e externalização do conhecimento. Além disso, se implementada na sua totalidade e dada autonomia ao consultor interno, permite uma maior interação nos níveis individual, grupal e organizacional descritos por Sabbag (2007. Assim, pode-se perceber que as empresas que possuem maior grau de autonomia, bem como maior nível de implementação são aquelas que os processos são mais compartilhados, socializados e internalizados pelos funcionários. Dessa forma, pode-se afirmar que, nas empresas analisadas, o desenvolvimento dos processos de CIRH catalisa os resultados da Gestão do Conhecimento nas mesmas.

Dante Marciano Girardi

2009-01-01

309

Malformações das orelhas média e interna em dois casos de síndrome velocardiofacial  

Directory of Open Access Journals (Sweden)

Full Text Available Objetivo: Descrever as características audiométricas e malformações das orelhas média e interna em dois pacientes portadores de síndrome velocardiofacial. Método: Avaliação audiométrica, tomografia computadorizada dos ossos temporais e análise de DNA, para marcadores múltiplos da região 22q11, foram realizadas em dois pacientes com sinais clínicos da síndrome velocardiofacial. Resultados: Perdas auditivas condutivas relacionadas com otite média crônica e malformações das orelhas média e interna foram encontradas, estas últimas com a utilização de reformatações baseadas em aquisições multislice da tomografia computadorizada dos ossos temporais. Conclusão: Consideramos de grande importância realizar uma completa avaliação e monitoramento da evolução da função auditiva, bem como do surgimento de sintomas relacionados à função vestibular em pacientes com a síndrome velocardiofacial. Do ponto de vista radiológico chamamos a atenção para o uso de técnicas de alta qualidade para o estudo tomográfico dos ossos temporais. Palavras chave: orelha, perda auditiva, velocardiofacial.

Tabith Junior, Alfredo

2009-03-01

310

EVALUACIÓN DE LAS PROPIEDADES MECÁNICAS DE LA ESTRUCTURA INTERNA DE LA GUADUA CON UN MODELO MATEMATICO  

Directory of Open Access Journals (Sweden)

Full Text Available Se caracterizo la estructura interna del Bambú-Guadua angustifolia kunth (GAK, en su zona media, encontrando la composición interna de este material compuesto, como son el porcentaje de la matriz (parénquima y de fibras (células de fibras y tejido conductivo. Se determinó las propiedades mecánicas como la resistencia a tensión y a flexión en sentido tangencial, y la Relación de Poisson del material y la resistencia de la fibra. Se valido un modelo matemático para materiales compuestos propuesto por Chandrupatla & Belegundu (1999, y se encontraron algunas ecuaciones que permiten predecir la resistencia del material en función de la resistencia de la fibra, y también para realizar modelos computacionales útiles para la industria de laminados de pisos en Bambuguadua. Los resultados experimentales no difirieron significativamente de los resultados obtenidos con los modelos matemáticos.

JAIRO ALEXANDER OSORIO SARAZ

2009-01-01

311

Artérias e veias placentárias em ovinos deslanados sem raça definida (Ovis aries, L. 1758) / Placental arteries and veins in wooless mongrel sheep (Ovis aries, L. 1758)  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O suprimento sangüíneo da placenta de 30 ovelhas deslanadas sem raça definida foi estudado mediante análise de peças obtidas através de injeção vascular com Látex Neoprene 650 corado. Constataram-se no material casos de gestações únicas (53,3%), gemelares (46,7%) e trigemelares (3,3%). Em todos os c [...] asos analisados, observaram-se 4 vasos umbilicais (2 artérias e 2 veias) além do ducto alantóide, na constituição do funículo umbilical. Em apenas 1 caso (gestação trigemelar), as duas artérias umbilicais de um dos fetos fundiram-se na porção média do funículo umbilical, e neste caso integrava apenas uma veia umbilical. A área placentária hilar variava de 2,0 a 6,0 centímetros dependendo da fase de gestação. O número médio de placentônios por gestação foi igual a 96, com tamanhos e formas bastante diversificados, sendo que aqueles maiores que 1,5 centímetro eram predominantes, assim como aqueles de formato ovóide. Os placentônios eram irrigados e drenados por uma série diversificada de artérias e veias, constituindo arranjos arteriocotiledonários e venocotiledonários, perfazendo um total de 299 e 314 arranjos respectivamente. Abstract in english The blood supply of placenta of 30 wooless sheep without a defined breed was studied by analyzing the pieces obtained through vascular injection of Latex Neoprene 650 stain solution and moulds were made from injection of vinyl acetate. Single gestation (53.33%), gemel (46.66%) and trigeminal (3.33%) [...] cases were observed; in all cases studied it was observed 4 umbilical vessels (2 arteries and 2 veins) besides the allantoidal duct forming the funiculus. Only in one case (trigeminal gestation), the two umbilical arteries of one of the fetuses were fused at he intermediary part of the umbilical funiculus. The hilar area of the placenta varied from 2.0 to 6.0 centimeters depending on the gestational phase. The mean number of cotyledons per gestation was 96 and their sizes and shapes were varied, being the most predominant those greater than 1.5 centimeter and also the ones with ovoid form. The cotyledons were irrigated and drained by a number of diversified arteries and veins, constituting arteriocotyledonary and venocotyledonary arrangements, numbering a total of 299 and 314 casting moulds, respectively.

Janicleide Maria de, ALMEIDA; Rosilda Maria Barreto, SANTOS; Maria Angélica, MIGLINO; Luciano de, MORAIS-PINTO.

312

A retrospective study of 29 cases of otitis media/interna in dairy calves  

OpenAIRE

Epidemiological data, clinical findings, laboratory data, medical imaging, and outcomes were reviewed in 29 dairy calves with otitis media/interna. Age at admission ranged from 1 to 24 wk. The majority of calves were referred during winter. Clinical signs included drooping ear, ptosis, head tilt, abnormal nystagmus, strabismus, dysphagia, regurgitation, stiff neck, opisthotonos, facial hyperesthesia, and purulent aural discharge. Intranasal endoscopic examination of 5 animals revealed nasopha...

Gosselin, Ve?ronique Bernier; Francoz, David; Babkine, Marie; Desrochers, Andre?; Nichols, Sylvain; Dore?, Elizabeth; Be?dard, Christian; Parent, Joane; Fairbrother, Julie-he?le?ne; Fecteau, Gilles

2012-01-01

313

Consultoria Interna: inspirando-se em Argyris para uma ação mais eficaz  

OpenAIRE

A consultoria interna surgiu a partir da necessidade das organizações de se manterem em processo permanente de renovação e vem se destacando nas últimas décadas pelo seu papel fundamental nos processos de mudança organizacional. A sua prática é baseada nos princípios da consultoria externa e se desenvolve sob um clima de conflitos, pressões e desgaste psicológico igual, se não superior, ao que se observa na consultoria externa. A partir da análise de três obras de Chris Argyris...

Ana Lúcia Neves de Moura; Marcos Gilson Gomes Feitosa; Bruno Campello de Souza

2009-01-01

314

Variação espaço-temporal da densidade de Cnidários Planctônicos na Plataforma interna do Paraná, Brasil  

OpenAIRE

Resumo: A variação espaço-temporal da composição e densidade de cnidários planctônicos foram estudadas ao longo de uma transecção perpendicular a costa, na plataforma interna do Paraná. Amostragens mensais de zooplâncton foram realizadas entre novembro de 1997 e março de 1999, juntamente com parâmetros hidrográficos e climatológicos. Foram encontradas 7395 medusas, 2185 colônias de sifonóforos e 21 larvas de ceriantos, divididas em 31 taxa, com 21 identificados ao nível de e...

Nagata, Renato Mitsuo

2010-01-01

315

A coisa julgada "interna" e a sentença da corte interamericana de direitos humanos  

OpenAIRE

O presente trabalho propõe a análise da implementação das decisões proferidas pela Corte Interamericana de Direitos Humanos que anulam ou retiram os efeitos de sentenças judiciais "internas" transitadas em julgado, cujas partes anteriormente beneficiadas não participaram do processo interamericano. Existe a possibilidade de conflito da sentença da Corte Interamericana com os princípios constitucionais da ampla defesa e do contraditório. Podem ocorrer prejuízos aos vencedores origin...

Simpli?cio, Alessandro

2013-01-01

316

Contributo da auditoria interna na detecção e mitigação de riscos empresariais  

OpenAIRE

Os escândalos que assolaram os mercados financeiros um pouco por todo o mundo, como são o caso da ENRON e PARMALAT contribuíram para a elaboração de documentos que definem como deve ser entendido e implementado um SCI (Sistema de Controlo Interno), de forma a fazer face a novas situações de risco que pudessem conduzir a desastres semelhantes ou piores aos já verificados. Tudo isto potenciou aquilo a que hoje chamamos de “mudança de paradigma” na função de auditoria interna. ...

Pires, Jose?

2010-01-01

317

Globus Pallidus Interna Deep Brain Stimulation in a Patient with Medically Intractable Meige Syndrome  

OpenAIRE

Medical therapies in patients with Meige syndrome, including botulinum toxin injection, have been limited because of incomplete response or adverse side effects. We evaluated a patient with Meige syndrome who was successfully treated with deep brain stimulation (DBS) in the globus pallidus interna (GPi). This case report and other previous reports suggest that bilateral GPi DBS may be an effective treatment for medically refractory Meige syndrome, without significant adverse effects.

Bae, Dae-woong; Son, Byung-chul; Kim, Joong-seok

2014-01-01

318

Características de la cultura organizacional y comunicación interna en una comercializadora de lácteos de Cali  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in portuguese Escopo. Esta pesquisa teve como escopo identificar as características da comunicação interna atribuídas à cultura organizacional de uma empresa familiar comercializadora de produtos lácteos. Metodología. É uma pesquisa de tipo descritiva com desenho transacional, na qual foram recolhidos os dados em [...] um só momento mediante o uso do Questionário de Diagnóstico da Cultura Organizacional de Cameron e Quinn (1999). A mostra esteve conformada por 66 empregados de diferentes áreas da empresa. Resultados and conclusão. Os resultados assinalam falências na comunicação interna geradas pela cultura organizacional de tipo clã, centrada para o interior, e que caracteriza à empresa familiar. Abstract in spanish Objetivo. Esta investigación tuvo como objetivo identificar las características de la comunicación interna, atribuidas a la cultura organizacional de una empresa familiar, comercializadora de lácteos. Método. Es una investigación de tipo descriptiva, con diseño transaccional, en la cual se recogen l [...] os datos en un solo momento mediante el uso del Cuestionario de Diagnóstico de la Cultura Organizacional de Cameron y Quinn (1999). La muestra estuvo conformada por 66 empleados de diferentes áreas de la empresa. Resultados y Conclusión. Los resultados señalan falencias en la comunicación interna, generadas por la cultura organizacional de tipo clan, centrada hacia su interior, y que caracteriza a la empresa familiar. Abstract in english Objective. The objective of this research was to identify the characteristics of the internal communication attributed to the organizational culture of a family business which marketed dairy products. Method. This research is descriptive and has a transactional design in which data is gathered on a [...] one time basis using a Diagnostic Questionnaire on the Organizational Culture of Cameron and Quinn (1999). The sample was made up of 66 employees of different areas within the company. Results and Conclusion. The results signal the internal communication shortcomings generated by the clan type organizational culture: focused inward as characterized by a family owned business.

Diana Marcela, Gómez; Kewy Sarsosa, Prowesk.

2011-12-01

319

Validez interna y utilidad diagnóstica del Eating Disorders Inventory en mujeres mexicanas  

OpenAIRE

OBJETIVO: Determinar la utilidad diagnóstica y la validez interna del Eating Disorder Inventory (EDI-2) en mujeres mexicanas. MATERIAL Y MÉTODOS: De octubre de 2000 a enero de 2001 se invitó a participar a todas las mujeres que a juicio de los psiquiatras de la consulta de anorexia del Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, de la Ciudad de México, padecían anorexia nervosa o bulimia, sin otra patología psiquiátrica. Es un estudio observacional, comparat...

García-García Eduardo; Vázquez-Velázquez Verónica; López-Alvarenga Juan Carlos; Arcila-Martínez Denise

2003-01-01

320

Revascularização direta do miocárdio com as duas artérias mamárias internas: análise de 442 casos / Revascularization with double internal mammary artery: analysis of 442 patients  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese No período de julho de 1984 a novembro de 1989, foram submetidos a revascularização direta do miocárdio 4958 pacientes. Em 54% foi empregada pelo menos uma artéria mamária interna (AMI) e em 442 (8,91%) pacientes as duas artérias mamárias interna direita (AMID) e interna esquerda (AMIE), associadas [...] ou não a outros tipos de enxertos. A idade variou de 30 a 78 anos (média de 52,7 anos) e 399 pacientes eram do sexo masculino. Os pacientes que receberam as duas AMIs foram classificados em 4 grupos: Grupo 1: AMIE para descendente anterior (DA) e AMID para diagonal (Di); diagonalis (DI), circunflexa (Cx) ou seus ramos marginais em posição retro-aórtica 232 (52,4%) pacientes; Grupo 2: AMIE para DA e MID para coronária direita (CD) ou seus ramos 135 (30,5%) pacientes; Grupo 3: AMIE para ramos da Cx e AMID para DA (enxerto livre) ou seus ramos 48 (10,8%) pacientes; Grupo 4: outras associações 27 (6%) pacientes. Em todos os grupos, as revascularizações foram ou não complementadas com pontes de veia safena, artéria epigástrica inferior, artéria gastro-epiplóica e condutos sintéticos (como Gorotex). A média de ramos coronarianos revascularizados foi de 3,17 pontes por pacientes. As principais complicações imediatas observadas foram: insuficiência respiratória 37 (8,3%) pacientes, baixo débito 23 (5,2%) pacientes; infarto do miocárdio 16 (3,6%); deiscência e infecção de esterno 15 (3,6%). A mortalidade imediata global foi de 4,97% (22 pacientes) e as principais causas de óbito foram: falência de múltiplos órgãos em 7 pacientes, insuficiência miocárdica em 6 (27,3%). Observou-se maior índice de mortalidade em pacientes com idade superior a 60 anos e com severa disfunção ventricular. A melhor associação enxerto/coronária foi obtida quando da anastomose da AMIE com a DA (patencia de 93,8%). O emprego de duas mamárias vem sendo incrementado no Serviço, bem como o uso de outros enxertos arteriais, especialmente a artéria epigástrica em função dos aceitáveis índices de morbi-mortalidade. Abstract in english From June 1984 to November 1989, 4958 patients (pts) were submitted to myocardial revascularization in the Heart Institute, and in 54% at least one internal mammary artery was used. In 442 (8,9%) pts both intenal mammary arteries, right (RIMA) and left (LIMA) were used, isolated or associated to the [...] r grafts. The age ranged from 30 to 78 years old (52,7y) and 399 were male. The pts were separated in 4 groups, being: G I 232 (52,4%) pts - LIMA to left anterior descending artery (LAD) and RIMA to LAD branches or circumflex (Cx) branches in retroaortic position; G II 135 (30,5%) pts - LIMA to LAD and RIMA to right coronary artery (RCA); G III 48 (10,8%) pts - LIMA to Cx branches and RIMA to LAD as a free graft; G IV 27 (6,1%) pts - different associations with both arteries. The LIMA was used in situ in 440 pts and as free graft in 2; the RIMA was used in situ in 379 pts and as free graft in 63; The average number of grafts/pts was 3,17, considering the association with saphenous vein and other grafts. Respiratory insufficiency and low cardiac output syndrome were the main complications in 37 (8,3%) and 23 (5,2%) pts, respectively; 16 (3,6%) pts had post operatory myocardial infarction and 15 (3,3%) had wound closure complications. The mortality rate was 4,91% (22 pts) and the main causes of deaths were multiple system organ failure in 7 (31,8%) and myocardial insufficiency in 6 (27,3%). The mortality rate was higher in pts with severe myocardial dysfunction and older than 60 years old and the best graft patency was observed when the LIMA was anastomosed to the LAD (93,8%). The use of both intenal mammary arteries showed good results and acceptable morbidity and mortality.

Marcelo B, Jatene; Luiz Boro, Puig; Fábio B, Jatene; Antônio F, Ramires; Sérgio de Almeida, Oliveira; Luís Alberto, Dallan; Ronaldo D, Fontes; Adib D, Jatene.

1990-08-01

321

Hemipelvectomia interna: relato de oito casos Internal hemipelvectomy: report on eight cases  

Directory of Open Access Journals (Sweden)

Full Text Available A hemipelvectomia interna é um procedimento cirúrgico adequado no tratamento de certos tumores de cintura pélvica. É uma alternativa terapêutica capaz de preservar o membro inferior do paciente, ao contrário das amputações clássicas como a amputação interilioabdominal (AIIA e desarticulação coxofemoral. De acordo com a classificação de Enneking, existem quatro tipos de hemipelvectomia interna, mas, se for necessário, é possível a associação de diferentes tipos de ressecção em um único procedimento. É fundamental que esta cirurgia seja indicada de forma correta para que interfira positivamente na morbimortalidade e qualidade de vida do paciente. Relatamos oito casos de hemipelvectomia interna em pacientes diagnosticados com tumores de cintura pélvica, bem como os tipos de tratamento neoadjuvantes e adjuvantes a que eles foram submetidos e o follow-up dos mesmos.Internal hemipelvectomy is a surgical procedure adequate for treatment of certain tumors of the pelvic girdle. Being a lower limb-preserving approach, it is a therapeutic alternative to the classical interilioabdominal amputation and hip joint disarticulation. According to Enneking`s classification, there are four types of internal hemipelvectomies, although the association of different types of resection in the same procedure is feasible if necesary. This surgical approach should be correctly indicated to positively affect the patient`s morbidity, mortality and quality of life. We report eight cases of internal hemipelvectomy in patients diagnosed with tumors of the pelvic girdle. We also discuss the neoadjuvant and adjuvant treatments used, along with their follow-up.

Alexandre Ferreira Oliveira

2012-01-01

322

Presumptive meningoencephalitis secondary to extension of otitis media/interna caused by Streptococcus equi subspecies zooepidemicus in a cat.  

Science.gov (United States)

A 5-year-old castrated male domestic longhair cat was presented with neurological signs consistent with a central vestibular lesion and left Horner's syndrome. Computed tomography images revealed hyperattenuating, moderately contrast-enhancing material within the left tympanic bulla, most consistent with left otitis media/interna. Marked neutrophilic pleocytosis was identified on cerebrospinal fluid analysis. Streptococcus equi subspecies zooepidemicus (SEZ) was isolated from the cerebrospinal fluid. Intracranial extension of otitis media/interna is relatively infrequent in small animals. There are no reports of otitis media/interna caused by SEZ in dogs or cats. This is the first report of otitis media/interna and presumptive secondary meningoencephalitis caused by SEZ in a cat. PMID:21640625

Martin-Vaquero, Paula; da Costa, Ronaldo C; Daniels, Joshua B

2011-08-01

323

Avaliação in vitro de um novo filtro de veia cava / In vitro evaluation of a new vena cava filter  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: O objetivo do estudo foi avaliar a eficácia de um novo filtro de veia cava, de baixo perfil, na retenção de coágulos em modelo in vitro. MÉTODO: O filtro consiste em dois cones opostos pelo ápice. O cone distal é formado por oito hastes de aço inoxidável, que têm a função de retenção dos ê [...] mbolos. O cone proximal é constituído de quatro hastes, cuja função é ancorar e centralizar. Os filtros foram introduzidos e fixados no interior de um tubo de PVC transparente de 25, 30 e 35 mm de diâmetro interno, em posição vertical, e conectados com um sistema pulsátil de fluxo (bomba peristáltica). Foi utilizado, para veículo, um reservatório com solução salina (0,9%) com 40% de glicerina, mantido em temperatura ambiente. Confeccionaram-se trombos com sangue bovino em tubos plásticos de 3, 4,5 e 6 mm de diâmetro e, posteriormente, foram segmentados nas medidas de 10, 15, 20 e 30 mm de comprimento, totalizando 12 diferentes tamanhos. Realizaram-se 100 liberações para cada tipo de êmbolo e tamanho das cânulas, totalizando 3.600 eventos. Foram feitos lançamentos seqüenciais com cinco êmbolos, sendo 10 para cada tamanho de êmbolo e cânulas, totalizando 360 eventos. Fez-se avaliação da capacidade de retenção dinâmica utilizando os três diferentes tamanhos de cânulas com 100 eventos cada, totalizando 300 eventos. RESULTADOS: Detectou-se que o diâmetro e comprimento dos êmbolos, assim como diâmetros da cânula, podem comprometer a eficácia do filtro. A média de captura de êmbolos pelos filtros foi de 80,5% nas cânulas de 35 mm, 88,7% para cânulas de 30 mm e 86,6% para cânulas de 25 mm. CONCLUSÃO: Conclui-se que a eficácia desse filtro sofre interferência relacionada ao tamanho dos êmbolos e diâmetro da cânula. Abstract in english OBJECTIVE: The objective of the current study was to evaluate the efficacy of a new low-profile vena cava filter in the retention of emboli in an in vitro model. METHOD: The filter consists of two cones connected at the apexes. The distal cone is comprised of eight stainless steel arms with a purpos [...] e of retaining emboli and the proximal cone, made of four arms, acts as an anchor to centralize the filter. Filters were installed and fixed inside three systems using transparent PVC tubes of different sizes (internal diameters of 25, 30 and 35 mm) that were held in a vertical position and connected to a pulsating flow system (peristaltic pump). A reservoir of 0.9% saline solution with 40% glycerin at room temperature was used as the vehicle. Thrombi were made from bovine blood in 3-mm, 4-mm, 5-mm and 6-mm plastic tubes and later the thrombi were sectioned into 10-mm, 15-mm, 20-mm and 30-mm lengths. Each of the 12 sizes of thrombi was assessed 100 times in each of the three systems, with a total of 3,600 events. Five emboli were sequentially released, 10 for each size of embolus and tube, with a total of 360 events. An evaluation of the capacity of the three systems - 100 events each, total of 300 events - to dynamically retain the emboli was made. MRESULTS: The diameter and length of the emboli, as well as tubes greater than 35 mm in diameter can negatively affect the efficacy of the filter. The average of emboli capture for the filters was 80.5% in 35-mm tubes, 88.7% for 30-mm tubes and 86.6% for 25-mm tubes. CONCLUSION: We conclude that the efficacy of this filter is influenced by the size of the emboli and the diameter of the PVC tubes.

Domingo Marcolino, Braile; José Maria Pereira de, Godoy; Marco, Centola.

324

Drenagem anômala total das veias pulmonares: terapêutica cirúrgica dos tipos anatômicos infracardíaco e misto Total anomalous pulmonary venous drainage: surgical therapy for the infradiaphragmatic and mixed anatomical types  

Directory of Open Access Journals (Sweden)

Full Text Available OBJETIVO: Estudar a evolução hospitalar em portadores de drenagem anômala total de veias pulmonares (DATVP, nas formas infracardíaca e mista, submetidos a tratamento cirúrgico. MÉTODOS: De 65 pacientes operados com o diagnóstico isolado de DATVP, de dezembro/1993 a março/2002, foram selecionados, retrospectivamente, 7 (10,8% pacientes das formas mista e infradiafragmática, sendo 5 (71,4% do sexo masculino, idades variando de 5 dias a 19 (média de 7 meses, com diagnóstico clínico feito pelo ecocardiograma bidimensional. Quatro (57,1% pacientes apresentavam formas mistas, em um, obstrutiva intrínseca, com estenose discreta da veia inferior esquerda. Os restantes três (42,9% apresentavam a forma infradiafragmática obstrutiva, extrínseca ao nível do diafragma. Todas as operações foram realizadas através de esternotomia mediana, sob circulação extracorpórea hipotérmica com parada circulatória total em 2 casos. RESULTADOS: Óbito hospitalar ocorreu em 1 paciente com DATVP infradiafragmática com conexão da veia vertical inferior com a veia porta. A causa mortis foi relacionada à falência de múltiplos órgãos e sistemas. O pós-operatório foi caracterizado pela presença de baixo débito cardíaco e hipertensão pulmonar em 4 (57,1% pacientes. CONCLUSÃO: O resultado da correção cirúrgica desta anomalia está associado à morbidade e mortalidade aceitáveis, na dependência do encaminhamento e tratamento cirúrgico precoces, sem progressão do quadro de hipertensão vascular pulmonar.OBJECTIVE: To study the in-hospital evolution of patients with the infradiaphragmatic and mixed types of total anomalous pulmonary venous drainage (TAPVD, who underwent surgical therapy. METHODS: Of the 65 patients diagnosed with isolated TAPVD and operated on from December 1993 to March 2002, 7 (10.8% patients with the mixed and infradiaphragmatic forms were retrospectively selected. Their ages ranged from 5 days to 19 months (mean of 7 months, 5 (71.4% were males, and their clinical diagnosis was established with 2-dimensional echocardiography. Four (57.1% patients had the mixed form, which was intrinsic obstructive in 1 patient, with mild stenosis of the left inferior vein. The remaining 3 (42.9% patients had the obstructive infradiaphragmatic form, extrinsic at the level of the diaphragm. All surgeries were performed through median sternotomy with hypothermic extracorporeal circulation, and total circulatory arrest was required in 2 patients. RESULTS: In-hospital death occurred in 1 patient with infradiaphragmatic TAPVD with connection of the inferior vertical vein with the portal vein. The cause of death was related to multisystem organ failure. In 4 (57.1% patients, the postoperative period was characterized by the presence of low cardiac output and pulmonary hypertension. CONCLUSION: The result of the surgical correction of this anomaly is associated with acceptable morbidity and mortality, depending on early referral and surgery, without progression of the pulmonary vascular hypertension findings.

Fernando Antibas Atik

2004-03-01

325

Drenagem anômala total das veias pulmonares, em sua forma infracardíaca: desafio diagnóstico Infracardiac total anomalous pulmonary venous drainage: a diagnostic challenge  

Directory of Open Access Journals (Sweden)

Full Text Available No período neonatal, a drenagem anômala total das veias pulmonares, em sua forma infracardíaca, pode ser erroneamente diagnosticada como desconforto respiratório decorrente de diferentes etiologias. No pré-operatório, a ecocardiografia bidimensional com Doppler orientado pelo mapeamento de fluxo em cores pode definir o local exato da drenagem e o padrão de retorno venoso pulmonar, permitindo, dessa forma, que a cirurgia cardíaca seja realizada imediatamente antes que ocorra qualquer dano clínico.Infracardiac total anomalous pulmonary venous drainage can be erroneously diagnosed as respiratory distress of several different etiologies during the neonatal period. A cross-sectional echocardiography study with Doppler color flow mapping can preoperatively determine the precise drainage site and pulmonary venous return pattern, thereby allowing cardiac surgery to be performed promptly, prior to any clinical deterioration.

Célia M. C. Silva

2007-04-01

326

Drenagem anômala total das veias pulmonares: terapêutica cirúrgica dos tipos anatômicos infracardíaco e misto / Total anomalous pulmonary venous drainage: surgical therapy for the infradiaphragmatic and mixed anatomical types  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Estudar a evolução hospitalar em portadores de drenagem anômala total de veias pulmonares (DATVP), nas formas infracardíaca e mista, submetidos a tratamento cirúrgico. MÉTODOS: De 65 pacientes operados com o diagnóstico isolado de DATVP, de dezembro/1993 a março/2002, foram selecionados, r [...] etrospectivamente, 7 (10,8%) pacientes das formas mista e infradiafragmática, sendo 5 (71,4%) do sexo masculino, idades variando de 5 dias a 19 (média de 7) meses, com diagnóstico clínico feito pelo ecocardiograma bidimensional. Quatro (57,1%) pacientes apresentavam formas mistas, em um, obstrutiva intrínseca, com estenose discreta da veia inferior esquerda. Os restantes três (42,9%) apresentavam a forma infradiafragmática obstrutiva, extrínseca ao nível do diafragma. Todas as operações foram realizadas através de esternotomia mediana, sob circulação extracorpórea hipotérmica com parada circulatória total em 2 casos. RESULTADOS: Óbito hospitalar ocorreu em 1 paciente com DATVP infradiafragmática com conexão da veia vertical inferior com a veia porta. A causa mortis foi relacionada à falência de múltiplos órgãos e sistemas. O pós-operatório foi caracterizado pela presença de baixo débito cardíaco e hipertensão pulmonar em 4 (57,1%) pacientes. CONCLUSÃO: O resultado da correção cirúrgica desta anomalia está associado à morbidade e mortalidade aceitáveis, na dependência do encaminhamento e tratamento cirúrgico precoces, sem progressão do quadro de hipertensão vascular pulmonar. Abstract in english OBJECTIVE: To study the in-hospital evolution of patients with the infradiaphragmatic and mixed types of total anomalous pulmonary venous drainage (TAPVD), who underwent surgical therapy. METHODS: Of the 65 patients diagnosed with isolated TAPVD and operated on from December 1993 to March 2002, 7 (1 [...] 0.8%) patients with the mixed and infradiaphragmatic forms were retrospectively selected. Their ages ranged from 5 days to 19 months (mean of 7 months), 5 (71.4%) were males, and their clinical diagnosis was established with 2-dimensional echocardiography. Four (57.1%) patients had the mixed form, which was intrinsic obstructive in 1 patient, with mild stenosis of the left inferior vein. The remaining 3 (42.9%) patients had the obstructive infradiaphragmatic form, extrinsic at the level of the diaphragm. All surgeries were performed through median sternotomy with hypothermic extracorporeal circulation, and total circulatory arrest was required in 2 patients. RESULTS: In-hospital death occurred in 1 patient with infradiaphragmatic TAPVD with connection of the inferior vertical vein with the portal vein. The cause of death was related to multisystem organ failure. In 4 (57.1%) patients, the postoperative period was characterized by the presence of low cardiac output and pulmonary hypertension. CONCLUSION: The result of the surgical correction of this anomaly is associated with acceptable morbidity and mortality, depending on early referral and surgery, without progression of the pulmonary vascular hypertension findings.

Fernando Antibas, Atik; Patricia Egusquiza, Irun; Miguel, Barbero-Marcial; Edmar, Atik.

2004-03-01

327

Drenagem anômala total das veias pulmonares, em sua forma infracardíaca: desafio diagnóstico / Infracardiac total anomalous pulmonary venous drainage: a diagnostic challenge  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese No período neonatal, a drenagem anômala total das veias pulmonares, em sua forma infracardíaca, pode ser erroneamente diagnosticada como desconforto respiratório decorrente de diferentes etiologias. No pré-operatório, a ecocardiografia bidimensional com Doppler orientado pelo mapeamento de fluxo em [...] cores pode definir o local exato da drenagem e o padrão de retorno venoso pulmonar, permitindo, dessa forma, que a cirurgia cardíaca seja realizada imediatamente antes que ocorra qualquer dano clínico. Abstract in english Infracardiac total anomalous pulmonary venous drainage can be erroneously diagnosed as respiratory distress of several different etiologies during the neonatal period. A cross-sectional echocardiography study with Doppler color flow mapping can preoperatively determine the precise drainage site and [...] pulmonary venous return pattern, thereby allowing cardiac surgery to be performed promptly, prior to any clinical deterioration.

Célia M. C., Silva; Victor M., Oporto; Patrícia, Silveira; Ayrton, Bertini Junior; Carlos Eduardo Bernini, Kapins; Antonio Carlos Camargo, Carvalho.

2007-04-01

328

Obtenção minimamente invasiva de veia safena para cirurgia de revascularização do miocárdio Minimally invasive procurement of saphenous veins for coronary artery bypass grafting  

Directory of Open Access Journals (Sweden)

Full Text Available OBJETIVO: Analisar, comparativamente, a obtenção minimamente invasiva com o uso do MINI-HARVEST® e com instrumental tradicional adaptado. MÉTODO: De junho de 1996 a janeiro de 1999, 63 pacientes submetidos à cirurgia de revascularização do miocárdio tiveram suas veias safenas retiradas segundo técnica minimamente invasiva. Nos 30 primeiros pacientes da série utilizou-se método de visão direta com auxílio de dois afastadores de Langenbeck, e nos 33 restantes utilizou-se o MINI-HARVEST®. RESULTADOS: A idade média dos pacientes era de 61 ± 8,75 anos, sendo 52 homens e 11 mulheres. Quarenta e cinco pacientes eram diabéticos, 45 apresentavam sobrepeso/obesidade, 25 eram tabagistas ativos, 32 apresentavam história pregressa de infarto do miocárdio. O tempo médio de retirada da veia safena com afastadores Langenbeck foi de 34,2 ± 8,14 minutos e com o MINI-HARVEST® de 39,20 ± 9,12 minutos. A extensão de veia retirada foi similar nos dois grupos, variando de 10 a 30 cm. Houve uma deiscência superficial no grupo com afastadores de Langenbeck. Houve necessidade de reversão para m??todo tradicional de retirada em dois casos do grupo MINI-HARVEST® e um do grupo Langenbeck. A incidência de infarto transoperatório foi 4,5% (três no grupo Langenbeck e 3,1%(dois no grupo MINI-HARVEST®. CONCLUSÕES: Podemos concluir que o método de obtenção de veia safena minimamente invasivo sob visão direta é efetivo e seguro, tanto com o uso de instrumentos tradicionais adaptados para este fim, como com afastadores especialmente constituídos, ressaltando-se que o MINI-HARVEST® dispensa a presença de um auxiliar.OBJECTIVE: To comparatively analyze minimally invasive procurement of saphenous veins using Mini-Harvest® system and a technique using adapted traditional instruments. METHOD: From June 1996 to January 1999, 63 patients who were submitted to Coronary Artery Bypass Grafting Surgery had their saphenous veins resected using minimally invasive techniques. In the first 30 patients of the series, a direct visualization method employing two Langenbeck's retractors was utilized and for the 33 remaining patients the Mini-Harvest® technique was utilized. RESULTS: The mean age of the patients was 61 ± 8.75 years old. Fifty-two patients were male and 11 female. Forty-five patients were diabetics, 45 were overweight or obese, 25 were smokers and 32 presented history of myocardial infarction. The mean time to resect the saphenous vein using the Langenbeck's retractors was 34.2 ± 8.14 minutes and using the Mini-Harvest® it was 39.20 ± 9.12 minutes. The lenghts of the extracted veins were similar in both groups, varying between 10 and 30 cm. There was one case of superficial dehiscence in the Langenbeck group. With two patients in the Mini-Harvest® group and one in Langenbeck's group it was necessary to revert to the traditional method of procurement. The incidence of tran-soperative infarction was 4.5% (three patients in Langenbeck's group and 3.1% (two patients in the Mini-Harvest® group. CONCLUSIONS: We can conclude that the minimally invasive procurement methods of the saphenous vein by direct visualization are effective and safe, both when employing adapted traditional instruments and using purpose-made retractors. We stress, however, that the Mini-Harvest® method does not require an assistant.

Antônio S. Martins

2004-06-01

329

Síndrome do anticorpo antifosfolípide causando oclusão bilateral de artérias e veias centrais da retina: relato de caso / Antiphospholipid syndrome and bilateral retinal artery and vein occlusion: case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese A síndrome do anticorpo antifosfolípide (SAF) tem sido associada a trombose de vasos arteriais e periféricos e de grande ou pequeno calibre. Também os vasos oculares estão sujeitos à ação destes auto-anticorpos que podem promover o aparecimento de perda visual transitória, diplopia, neuropatia óptic [...] a isquêmica e oclusão de artéria ou veia da retina. É descrito aqui, um caso de síndrome do anticorpo antifosfolípide com oclusão de vasos centrais arteriais e venosos da retina no intuito de chamar a atenção para este tipo de diagnóstico. Abstract in english The antiphospholipid syndrome (APS) has been related to venous and arterial thrombosis of large and small vessels. Ocular vessels can also be involved causing transient visual loss, diplopia, ischemic optic neuropathy and central artery and venous occlusion. We describe here a case of antiphospholip [...] id syndrome with occlusion of central retinal artery and vein to call the attention to this diagnosis.

Ana Paula, Beckhauser; Luís Augusto, Arana; Thelma Larocca, Skare.

2008-04-01

330

Síndrome do anticorpo antifosfolípide causando oclusão bilateral de artérias e veias centrais da retina: relato de caso Antiphospholipid syndrome and bilateral retinal artery and vein occlusion: case report  

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Full Text Available A síndrome do anticorpo antifosfolípide (SAF tem sido associada a trombose de vasos arteriais e periféricos e de grande ou pequeno calibre. Também os vasos oculares estão sujeitos à ação destes auto-anticorpos que podem promover o aparecimento de perda visual transitória, diplopia, neuropatia óptica isquêmica e oclusão de artéria ou veia da retina. É descrito aqui, um caso de síndrome do anticorpo antifosfolípide com oclusão de vasos centrais arteriais e venosos da retina no intuito de chamar a atenção para este tipo de diagnóstico.The antiphospholipid syndrome (APS has been related to venous and arterial thrombosis of large and small vessels. Ocular vessels can also be involved causing transient visual loss, diplopia, ischemic optic neuropathy and central artery and venous occlusion. We describe here a case of antiphospholipid syndrome with occlusion of central retinal artery and vein to call the attention to this diagnosis.

Ana Paula Beckhauser

2008-04-01

331

Implante profilático e temporário de filtro de veia cava inferior no trauma / Prophylactic and temporary inferior vena cava filter implant in trauma  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O tromboembolismo pulmonar (TEP) é importante causa de óbito no trauma e esse, na maioria das vezes, contraindica a principal farmacoterapia na prevenção e no tratamento do TEP: a anticoagulação. Relatamos um caso de paciente politraumatizado, com risco elevado de embolia pulmonar, submetido ao impl [...] ante preventivo e temporário de filtro de veia cava inferior (FVC). Abstract in english Pulmonary embolism (PE) is a major cause of death in trauma and that, on most cases, the main contraindication for pharmacotherapy in the prevention and treatment of PE: the anticoagulation. We report a case of multiple trauma patient at high risk of pulmonary embolism, preventive and implant subjec [...] ted to temporary inferior vena cava filter (VCF).

Fábio Augusto Cypreste, Oliveira; Carlos Eduardo de Sousa, Amorelli; Fábio Lemos, Campedelli; Juliana Caetano, Barreto; Mariana Caetano, Barreto; Philippe Moreira da, Silva; Fernanda Lauar Sampaio, Meirelles.

2013-03-01

332

Estudo eritroleucométrico e proteinograma sérico do sangue do cordão umbilical e jugular de eqüinos ao nascimento e de suas respectivas mães Erythrocytometry and seric proteinogram of umbilical cord and jugular of foals at birth and respective mothers  

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Full Text Available Colheram-se amostras de sangue do cordão umbilical (SCU e do sangue circulante de cinco eqüinos neonatos, imediatamente após o nascimento, e o sangue da própria mãe, utilizando-se um sistema a vácuo. O material foi submetido à contagem global de hemácias e leucócitos e à determinação do volume globular e da concentração de hemoglobina; à contagem diferencial de leucócitos em esfregaços sangüíneos; e ao cálculo dos índices eritrocitométricos. Foram realizadas a dosagem de proteínas séricas totais e a eletroforese das proteínas séricas em gel de agarose. Não houve diferenças significativas entre os parâmetros do SCU e do sangue da jugular dos potros. No SCU dos potros observaram-se valores mais elevados para contagem global de hemácias (9,75x10(6/µl, dosagem de hemoglobina (14,65g/dl e concentração de hemoglobina corpuscular média (37,23g/dl; e valores menores para volume corpuscular médio (40,50fl, proteína total (4,37g/dl, alfa-globulinas (0,65g/dl, beta-globulinas (1,10g/dl, gama-globulinas (0g/dl e contagens global (5,40 x 10³/µl e diferencial de leucócitos, exceto contagem de neutrófilos bastonetes e monócitos, quando comparados com os valores obtidos no sangue de suas mães.Umbilical cord blood (UCB and systemic blood samples were collected from five equine neonates, immediately after birth. Systemic blood samples from their mothers were also collected at the same time, using a vacuum system. The samples were submitted to the following analyses: red blood cell and total white blood cell counts; determinations of packed cell volume and hemoglobin concentration; differential white cell count in blood smears; and determination of erythrocytometric values. Total serum proteins quantification and serum proteins electrophoresis in agarose gel were done. No significant difference (P<0.05 was noted between averages in neonate jugular blood and equine UCB. Equine UCB showed higher values of red blood cell count (9.75x10(6/µ, hemoglobin determination (14.65g/dl, and mean corpuscular hemoglobin concentration (37.23g/dl; but lower values of mean corpuscular volume (40.50fl, total protein (4.37g/dl, alpha-globulin (0.65 g/dl, beta-globulin (1.10g/dl, gamma-globulin (0g/dl, total (5.40x10³/µl, and differential leukocytes count, except for band neutrophils and monocytes counts, when compared to the blood of the mares.

R.F. Godoy

2007-12-01

333

Extensão cranial da veia safena parva: quando o fluxo caudal é normal / Cranial extension of the small saphenous vein: when caudal flow is normal  

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Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese A extensão cranial da veia safena parva se destaca pelas inúmeras variações anatômicas e diferentes padrões de fluxo que podem ser observados, descritos em trabalhos envolvendo dissecções pós-morte ou cirúrgicas, flebografias e Doppler, que denotam a formação embriológica mais precoce e complexa em [...] relação à safena magna. A observação de um tipo específico de extensão cranial da safena parva onde o sentido das valvas é contrário ao habitualmente observado foi primeiramente caracterizada por Carlo Giacomini, sendo o fluxo caudal nesses casos de aspecto normal sem sinal de incompetência valvar. Este artigo demonstra os padrões anatômicos e de fluxo que podem ser caracterizados na veia safena parva, contribuindo para que aspectos normais do seu fluxo não sejam confundidos com incompetência valvar. Abstract in english Cranial extension of the small saphenous vein is of special interest due to the number of anatomical variations and different blood flow patterns observed, which have been described in investigations including postmortem or surgical dissections, phlebographies, and Doppler studies, indicating an ear [...] lier and more complex embryological development in relation to the great saphenous vein. A specific type of cranial extension of the small saphenous vein, where a reverse flow is often observed in the valves, was first characterized by Carlo Giacomini. In these veins, caudal flow is normal, with no evidence of valvular incompetence. This article describes anatomical and blood flow patterns found in the small saphenous vein, thus contributing to avoid that normal blood flow aspects are misinterpreted as valvular incompetence.

André Paciello, Romualdo; Roberto de Moraes, Bastos; Mathias, Fatio; Alessandro, Cappucci; Solange Augusta Munhoz, Mariana; Érika, Narahashi; Alberto Lobo, Machado; Eduardo Hideki, Tokura.

2009-06-01

334

Forças mecânicas e veias safenas humanas: implicação na revascularização do miocárdio / Mechanical forces and human saphenous veins: coronary artery bypass graft implications  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese As células endoteliais vasculares estão expostas a uma variedade de forças mecânicas in vivo, resultantes do fluxo sangüíneo pulsátil. Dentre essas forças, destacam-se: forças de cisalhamento, tangenciais à parede do vaso, produzidas pelo atrito com o fluxo sangüíneo viscoso, tensão de complacência [...] da parede vascular e a pressão hidrostática do conteúdo sangüíneo no interior da vasculatura. Diversos autores estudaram as alterações hemodinâmicas, funcionais e morfológicas em veias safenas humanas causadas por esses tipos de forças com resultados conflitantes. A motivação dessa revisão foi analisar dados da literatura e alguns dados experimentais do nosso laboratório. Os aspectos revistos são: 1) Respostas endoteliais e regulação gênica causadas pelo shear stress; 2) Efeitos da pressão hidrostática na morfologia da célula endotelial, expressão gênica da superfície celular endotelial e proliferação das células endoteliais, 3) Efeitos da tração no endotélio de veias safenas humanas. Abstract in english Vascular endothelial cells are exposed to a variety of in vivo mechanical forces, specifically, shear stress for the blood flow, tensile stress from the compliance of the vessel wall and the hydrostatic pressure from containment of blood within inside the vasculature. Many authors studied hemodynami [...] c, functional and morphological human saphenous veins alterations caused by these different forces with conflictant results. This review text was motivated with the specific aim of analyze literature data and some experimental data carried out in our laboratory. The adopted review subjects were: 1) Endothelial responses and gene regulation to shear stress; 2) Effects of the hydrostatic pressure in the endothelial cell morphology, gene expression of the endothelial cellular surface and proliferation of endothelial cells; 3) Effects of the traction on the human saphenous vein endothelium.

Rafael Angelo, Tineli; Fernanda, Viaro; Marcelo Bellini, Dalio; Graziela Saraiva, Reis; Solange, Basseto; Walter Villela de Andrade, Vicente; Alfredo José, Rodrigues; Paulo Roberto Barbosa, Evora.

2007-03-01

335

Forças mecânicas e veias safenas humanas: implicação na revascularização do miocárdio Mechanical forces and human saphenous veins: coronary artery bypass graft implications  

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Full Text Available As células endoteliais vasculares estão expostas a uma variedade de forças mecânicas in vivo, resultantes do fluxo sangüíneo pulsátil. Dentre essas forças, destacam-se: forças de cisalhamento, tangenciais à parede do vaso, produzidas pelo atrito com o fluxo sangüíneo viscoso, tensão de complacência da parede vascular e a pressão hidrostática do conteúdo sangüíneo no interior da vasculatura. Diversos autores estudaram as alterações hemodinâmicas, funcionais e morfológicas em veias safenas humanas causadas por esses tipos de forças com resultados conflitantes. A motivação dessa revisão foi analisar dados da literatura e alguns dados experimentais do nosso laboratório. Os aspectos revistos são: 1 Respostas endoteliais e regulação gênica causadas pelo shear stress; 2 Efeitos da pressão hidrostática na morfologia da célula endotelial, expressão gênica da superfície celular endotelial e proliferação das células endoteliais, 3 Efeitos da tração no endotélio de veias safenas humanas.Vascular endothelial cells are exposed to a variety of in vivo mechanical forces, specifically, shear stress for the blood flow, tensile stress from the compliance of the vessel wall and the hydrostatic pressure from containment of blood within inside the vasculature. Many authors studied hemodynamic, functional and morphological human saphenous veins alterations caused by these different forces with conflictant results. This review text was motivated with the specific aim of analyze literature data and some experimental data carried out in our laboratory. The adopted review subjects were: 1 Endothelial responses and gene regulation to shear stress; 2 Effects of the hydrostatic pressure in the endothelial cell morphology, gene expression of the endothelial cellular surface and proliferation of endothelial cells; 3 Effects of the traction on the human saphenous vein endothelium.

Rafael Angelo Tineli

2007-03-01

336

Estudo microscópico das pontes de miocárdio sobre as veias cardíacas de suínos Microscopic study of the myocardial bridges over cardiac veins of pigs  

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Full Text Available Com o objetivo de fazer um estudo, em microscópio de luz, das pontes de miocárdio sobre as veias cardíacas, utilizaram-se 5 corações de suínos de ambos os sexos. Esses corações foram fixados em formol a 10%, por um período de 10 dias, embebidos em parafina e submetidos a cortes histológicos seriados de 15 ?m de espessura. A seguir, os cortes foram corados pelos métodos de Azan e Weigert-van Gieson. Verificou-se que as pontes de miocárdio eram constituídas por fibras da camada superficial do miocárdio. A parede dos segmentos venosos pré-pontino, pós-pontino e pontino das veias cardíacas magna e média de suínos era delgada e possuía características semelhantes. A túnica média apresentava modificações estruturais de acordo com a localização no plano subepicárdico: fibromuscular, próxima ao ápice cardíaco, e fibroelástica, no restante do trajeto. Sob o ponto de vista morfofuncional, as pontes de miocárdio podem ser consideradas como um fator coadjuvante do retorno venoso.Aiming to study the myocardial bridges over the cadiac veins on the optic microscope we used 5 pig hearts. The hearts were fixed in 10% formaldehyde for 10 days, embebbed in paraffin and were submitted to 15?m histological serial sections. The sections were stained by Azan and Weigert-van Gieson methods.The myocardial bridges were composed by superficial layer of the myocadium. The great cardiac vein and middle cardiac vein showed similar features on their pre-pontine, pontine, and post-pontine segments. The vessel wall was thin. The middle layer of the veins showed structural changes during its subepicardial course: it was fibro-muscular near the cardiac apex and fibro-elastic on its remaing course were also observed. From a morphofunctional point of view these myocardial bridges may be considered an additional factor for the venous return.

Nadir Eunice Valverde Barbato de Prates

1999-07-01

337

Monitoring of cerebral oxygenation in patients with severe head injuries: brain tissue PO2 versus jugular vein oxygen saturation.  

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Monitoring of cerebral oxygenation is considered to be of great importance in minimizing secondary hypoxic and ischemic brain damage following severe head injury. Although the threshold for cerebral hypoxia in jugular bulb oximetry (measurement of O2 saturation in the jugular vein (SjvO2)) is generally accepted to be 50% oxygen saturation, a comparable value in brain tissue PO2 (PtiO2) monitoring, a new method for direct assessment of PO2 in the cerebral white matter, has not yet been established. Hence, the purpose of this study was to compare brain PtiO2 with SjvO2 in severely head injured patients during phases of reduced cerebral perfusion pressure (CPP) to define a threshold in brain PtiO2 monitoring. In addition, the safety and data quality of both SjvO2 and brain PtiO2 monitoring were studied. In 15 patients with severe head injuries, SjvO2 and brain PtiO2 were monitored simultaneously. For brain PtiO2 monitoring a polarographic microcatheter was inserted in the frontal cerebral white matter, whereas for SjvO2 measurements were obtained by using a fiberoptic catheter placed in the jugular bulb. Intracranial pressure was monitored by means of an intraparenchymal catheter. Mean arterial blood pressure, CPP, end-tidal CO2, and arterial oxygen saturation (pulse oximetry) were continuously recorded. All data were simultaneously stored and analyzed using a multimodal computer system. For specific analysis, phases of marked deterioration in systemic blood pressure and consecutive reductions in CPP were investigated. There were no complications that could be attributed to the PtiO2 catheters, that is, no intracranial bleeding or infection. The "time of good data quality" was 95% in brain PtiO2 compared to 43% in SjvO2; PtiO2 monitoring could be performed twice as long as SjvO2 monitoring. During marked decreases in CPP, SjvO2 and brain PtiO2 correlated closely. A significant second-order regression curve of SjvO2 versus brain PtiO2 (p < 0.01) was plotted. At a threshold of 50% in SjvO2, brain PtiO2 was found to be within the range of 3 to 12 mm Hg, with a regression curve "best fit" value of 8.5 mm Hg. There was a close correlation between CPP and oxygenation parameters (PtiO2 and SjvO2) when CPP fell below a breakpoint of 60 mm Hg, suggesting intact cerebral autoregulation in most patients. This study demonstrates that monitoring brain PtiO2 is a safe, reliable, and sensitive diagnostic method to follow cerebral oxygenation. In comparison to SjvO2, PtiO2 is more suitable for long-term monitoring. It can be used to minimize episodes of secondary cerebral maloxygenation after severe head injury and may, hopefully, improve the outcome in severely head injured patients. PMID:8893710

Kiening, K L; Unterberg, A W; Bardt, T F; Schneider, G H; Lanksch, W R

1996-11-01

338

[Course of the external branch of the accessory nerve and its relations with the first portion of the internal jugular vein (author's transl)].  

Science.gov (United States)

This report is based upon microdissections of 32 right and left hemi-heads. It was observed in 26 pieces of both sides that the external branch of the accessory nerve turns round the medial surface and next to posterior surface of the first portion of the internal jugular vein. In 6 pieces obtained from both sides it was observed that the nerve turns round the anterior surface and next to lateral surface of the internal jugular vein. In the superior portion of the neck, the accessory nerve is also in the interior of the carotid sheath and is involved by an subdivision of this sheath. At this level, the nerve perfurates the carotid sheath and runs down obliquely, to outside and to behind reaching the deep surface of the sternocleidomastoid and the trapezius muscles. PMID:7224184

Piffer, C R; Garcia, P J; Soares, J C

1980-01-01

339

[Jugular vein thrombosis, subclavian vein thrombosis and right brachiocephalic vein thrombosis after in vitro fertilization and embryo transfer: a case report].  

Science.gov (United States)

To discuss the diagnosis and treatment of jugular vein thrombosis, subclavian vein thrombosis and the right brachiocephalic vein thrombosis after in vitro fertilization and embryo transfer (IVF-ET)cycles in clinical practice. The clinical data regarding a case of jugular vein thrombosis, subclavian vein and the right brachiocephalic vein thrombosis in IVF-ET were reviewed. Clinical characteristics, prevention and treatment of jugular vein thrombosis, subclavian vein and the right brachiocephalic vein thrombosis in IVF-ET were discussed. A woman with secondary infertility underwent an IVF cycle with prolonged protocol controlled ovarian hyperstimulation. The oestradial concentration was 2 495 pg/mL on the day of human chorionic goeadotrophin (hCG). Fifteen occytes were retrieved and 2 embryos were transferred. Nine days after the embryos were transferred, the patient had ascites,hydrothorax and fluid of pelvic cavity accumulating, and was hospitalized. The patient underwent volume expansion and paracentesis, and left the hospital 30 days after the embryo transfer. Her right neck had pain 43 days after the embryo transfer. B ultrasound showed jugular vein thrombosis, subclavian vein and the right brachiocephalic vein thrombosis. The patient underwent low molecular weight heparin anticoagulation and low molecular weight dextran expansion, and left hospital with symptoms improved. She had Caesarean section and had a healthy baby girl. The thrombosis in the IVF-ET was a rare and serious complication. Prevention of ovarian hyperstimulation syndrome (OHSS) may reduce the incidence. The patients had local pain, swelling, skin temperature increased, headache, neck pain, and had to be checked to determine whether there were blood clots. The main treatment was low molecular weight heparin anticoagulation and low molecular weight dextran expansion. Timely Cesarean section is recommended to ensure the safety of perinatal mother and child. PMID:21685703

Gong, Fei; Cai, Sufen; Lu, Guangxiu

2011-05-01

340

An endothelial 5-HT receptor that mediates relaxation in guinea-pig isolated jugular vein resembles the 5-HT1D subtype.  

OpenAIRE

1. Endothelium-dependent and -independent, concentration-related, relaxations to 5-hydroxytryptamine (5-HT) are described in a preparation of guinea-pig isolated jugular vein. 2. An endothelial 5-HT receptor was studied in the presence of mesulergine (at 10.0 microM, a concentration sufficient to antagonize 5-HT2 receptor-mediated contractions and endothelium-independent relaxations to 5-HT). Relaxations mediated by the endothelial 5-HT receptor were resistant to antagonism by mesulergine. 3....

Gupta, P.

1992-01-01

341

Contraportada interna  

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Full Text Available Geología Colombiana ISSN: 0072-0992 Geología Colombiana publica desde 1962 contribuciones dedicadas a las Ciencias de la Tierra, en especial las relacionadas con Colombia, Sudamérica y el Caribe, pero también de otras regiones que pueden tener importancia comparativa, divulgar conocimientos, innovaciones, métodos, técnicas, interacciones con la sociedad, etc. Es una revista especializada en Geociencias editada por el Departamento de Geociencias de la Universidad Nacional de Colombia, Sede Bogotá, pero con una amplia red de colaboradores nacionales e internacionales. Indexado en: ISI Thomson Reuters (Zoological Record, GEOREF, LATINDEX (folio 11333 e-revistas del CSIC, Publindex Idioma: Creemos que sigue siendo un reto fomentar buenas publicaciones en español -idioma hablado por más de 400 millones de personas - además de publicaciones en inglés. Sin embargo, Geología Colombiana impulsa la visibilidad internacional a través de la publicación de artículos en castellano que deben tener resumen extendido en inglés. Editor principal: Thomas Cramer, Profesor Asociado, Universidad Nacional de Colombia, Sede Bogotá, Departamento de Geociencias Comité Editorial: Thomas Cramer, Editor Profesor Asociado, Universidad Nacional de Colombia, Sede Bogotá, Departamento de Geociencias Franck Albert Audemard, Fundacion Venezolana de Investigaciones Sismológicas, Venezuela Luis Antonio Castillo, Editor Profesor Asociado, Universidad Nacional de Colombia, Sede Bogotá, Departamento de Geociencias German Bayona, Corporación Geológica ARES, Colombia Sven N. Nielsen, Christian-Albrechts-Universität zu Kiel, Alemania Harald G. Dill, Alemania Jhon Jairo Sanchez Aguilar, Editor Profesor Asociado, Universidad Nacional de Colombia, Sede Bogotá, Departamento de Geociencias Mohammadamin Emami, Art University of Isfahan & Universitaet Siegen, Irán Lucas Spencer, New Mexico Museum of Natural History, Estados Unidos Comité Científico: Uwe Altenberger, Professor, Universität Potsdam, Alemania Donato Attanasio, Istituto di Struttura della Materia del CNR ISM-CNR William E. Brooks, Independiente, Estados Unidos Andrés Díez Herrero, Editor Boletín Geológico y Minero del INSTITUTO GEOLÓGICO Y MINERO DE ESPAÑA (IGME, España Humberto González Iregui, INGEOMINAS Jonas Kley, Institut für Geowissenschaften, Universität Jena, Alemania Luis Carlos Mantilla Figueroa, Docente UIS, Colombia Germán A Prieto, Universidad de los Andes, Colombia Peter Prinz-Grimm, Institut für Geowissenschaften, FB 11, Goethe-Universität Frankfurt/M, Alemania Federica Zaccarini, Institute of Resource Mineralogy, University of Leoben, Austria Comisión Técnica Editorial y de Apoyo: Camilo Baquero Castellanos, Director de Publicaciones Facultad de Ciencias, Universidad Nacional de Colombia, Sede Bogotá María Fernanda Almanza, Asistente Editorial de Geología Colombiana, Estudiante, Universidad Nacional de Colombia, Sede Bogotá, Departamento de Geociencias Francisco Javier Muñoz, Estudiante, Universidad Nacional de Colombia, Sede Bogotá, Departamento de Geociencias Johan Miguel Sánchez, Diego Lozano, Laura Mora, Johnny Germán Díaz, Andrés Felipe Charry y Edna Pinzón, Estudiantes organizadores X Semana Técnica de Geología e Ingeniería Geológica, Universidad Nacional de Colombia, Sede Bogotá, Departamento de Geociencias Información más detallada, acceso y subcomisión de artículos bajo las condiciones Open Journal Publishing: http://www.revistas.unal. edu.co/index.php/geocol Dirección postal: Universidad Nacional de Colombia, Ciudad Universitaria, Apartado aéreo 14490; Av Cra 30 No 45-03, Edificio Manuel Ancízar (224, Bogotá, D.C., Colombia; Tel: 0051-3165000 Ext: 16525 Fax: 3165390 Correo electrónico: rgeocol_fcbog@unal.edu.co, revistageologiacolombiana@mail.com Foto portada: Cerro Mono, Río Inírida, Departamento del Guainía, Colombia. Tomada por José Alejandro Franco Victoria, Grupo de Estudios en Geología Económica y Mineralogía Aplicada (GEGEMA, 6 de febrero 2011, Comisión de campo al Río Inirida,

Cramer Thomas

2012-10-01

342

A Case of Unilateral Fenestration and Duplication of the External Jugular Vein / Un Caso de Fenestración Unilateral y Duplicación de la Vena Yugular Externa  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in spanish La vena yugular externa se está utilizando cada vez como vena receptora en la transferencias de tejidos libres de cabeza y cuello, y para canulización en procedimientos de diagnóstico o terapias intravenosas. Las variaciones en los patrones de su curso, y el conocimiento de los mismos son relevantes [...] . Se reporta una fenestración unilateral, no descrita previamente, y la duplicación de la vena yugular externa encontrada durante la disección del cadáver de una mujer de 77 años de edad. Se hace una evaluación embriológica y las implicaciones clínicas de esta anomalía. Los médicos y cirujanos que realizan cirugía vascular o reconstructiva de cuello deben tener en cuenta esta variación de la vena yugular externa con el fin de prevenir lesiones accidentales. Abstract in english The external jugular vein is increasingly being utilized as the recipient vein in head and neck free tissue transfers, and for cannulation in order to conduct diagnostic procedures or intravenous therapies. The variations in the patterns of its course, and knowledge of them, are therefore important. [...] We report on a unique and previously non-described unilateral fenestration and duplication of the external jugular vein found during the neck dissection of a 77-year-old female cadaver. Embryological evaluation and clinical implications of the anomaly are described. Clinicians and surgeons performing neck vascular or reconstructive surgery should be aware of this variation of the external jugular vein in the hope of preventing inadvertent injury.

Ziga, Snoj; Erika, Cvetko.

2013-03-01

343

[Intracranial granulocytic sarcoma extending from the posterior fossa to the carotid space via the jugular foramen: a case report].  

Science.gov (United States)

Granulocytic sarcoma consists of neoplastic granulocytic precursors and myeloblasts. It is a focal lesion seen in 2-10.9% of acute myelogenous leukaemia (AML) patients. It usually develops either concurrently with the AML or after a remission. On rare occasions, it may be an initial manifestation of AML. Most common involvement sites are bone, periostium, soft tissue, lymph nodes and skin. Intracranial granulocytic sarcoma rarely occurs in meningeal or parenchymal form. We present an extremely rare case of intracranial granulocytic sarcoma extending from the posterior fossa to the carotid space via the jugular foramen in a 69 year old female. This form of involvement has not been previously reported. On MRI, the lesion appears isointense compared with normal grey matter in T1 and T2 weighted images and shows homogeneous contrast enhancement. With these findings, it is difficult to differentiate the lesion from other extraaxial tumours such as meningioma, paraganglioma, schwannoma, carcinoma, metastatic tumor, malignant lymphoma. However, granulocytic sarcoma, densely increased tumour cells restrict diffusion and reduce the extracellular volume fraction, tends to be markedly hyperintense on diffusion-weighted MR images and exhibits a marked decrease in ADC values. Therefore, DWI may be helpful in differentiating granulocytic sarcoma from other intracranial lesions. PMID:20085103

Baba, Shiro; Matsuo, Takayuki; Ishizaka, Shunsuke; Morikawa, Minoru; Suyama, Kazuhiko; Nagata, Izumi

2010-01-01

344

A COMPARATIVE STUDY BETWEEN ULTRASOUND GUIDED CATHETERIZATION OF THE INTERNAL JUGULAR VEIN AND CLASSICAL LAND MARK TECHNIQUE  

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Full Text Available Background: Catheterization of Internal Jugular Vein (IJV is commonly attempted to obtain central venous access for hemodynamic monitoring, long term administration of fluids, total parenteral nutrition and hemodialysis in critical care patients. The safe puncture of the IJV is achieved by using anatomical land marks on skin surface. Ultrasound guidance could be beneficial in placing central venous catheters by improving the success rate, reducing the number of needle passes, decreasing access time and decreasing complications. Material and Methods: Sixty critical care patients were selected for IJV cannulation either by land mark technique or by ultrasound guided technique in two groups of thirty each. Results: In our study there was 100% success rate for first attempt cannulation in USG technique and where as it was 83.3% in LMG technique. The mean access time in USG technique was 152.50 ± 63.90 sec as against 323.23 ± 146.19 sec in LMG group. Conclusion: Ultrasound guided technique improves the cannulation of the IJV with respect to safety, rapidity and comfort to the patient during the procedure.

Henjarappa K S

2014-12-01

345

Anatomical variations of the internal jugular veins and their relationship to the carotid arteries: a CT evaluation.  

Science.gov (United States)

The right internal jugular vein (IJV) is a common vessel to obtain venous access. It is important to have a clear understanding of the anatomy of the IJV and its relationship to the common carotid arteries (CCA) to avoid inadvertent arterial puncture. This study aims to objectively evaluate the variations in the anatomy of IJV and its relation to the CCA. A total of 176 right and left IJV were retrospectively evaluated using CT imaging with the CentraRad Diagnostic Viewer Version 4.09.0190 (CDN Telemedicine Solutions, Wollongong, Australia). The data were recorded and analysed. The right IJV (80.5%) was more often larger than the left IJV. With reference to the CCA, 85.2% of the IJV were found in the lateral position, 12.5% anteriorly, 1.1% medially and 1.1% posteriorly. Seven IJV were found to be hypoplastic, and in one case this was seen bilaterally in both the right and left IJV. The maximum depth of IJV from the skin was 27.9 mm. More than half (69.5%) of the IJV were less than 1 mm from the carotids. Computed tomography is an excellent method to delineate the anatomy of IJV. Variations in the anatomy of the IJV and their correlation to the CCA are common. PMID:16884415

Lim, C L; Keshava, S N; Lea, M

2006-08-01

346

Revascularização miocárdica com enxerto composto de artéria torácica interna esquerda em Y: análise de fluxo sangüíneo / Myocardial revascularization surgery using composite Y-graft of the left internal thoracic artery: blood flow analysis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese OBJETIVO: Verificar o comportamento do fluxo sangüíneo na artéria torácica interna esquerda (ATIE), quando utilizada para revascularizar a artéria interventricular anterior (AIA) e mais um ramo do sistema coronariano esquerdo (SCE). MÉTODO: No presente estudo, compara-se o fluxo obtido pela ecocardi [...] ografia Doppler na ATIE, em repouso e sob estresse com dobutamina, em dois grupos de 20 pacientes cada. No grupo A, foi utilizado enxerto pediculado de ATIE anastomosada unicamente à AIA. No grupo B, a ATIE revasculariza a AIA, e um enxerto de veia safena magna, anastomosado em "Y" à ATIE, revasculariza outro ramo do SCE. O estudo angiográfico demonstrou patência de todos os enxertos em ambos os grupos. Na avaliação pela ecocardiografia Doppler foram realizadas as seguintes medidas: débitos sistólico (DS), diastólico e total, razão entre o débito total em estresse pelo débito total em repouso (DTE/DTR), velocidades de pico sistólico (VPS) e diastólico e razão entre essas velocidades. RESULTADOS: Todos os parâmetros analisados apresentaram diferença estatisticamente significativa, com exceção do DS, DTE/DTR e VPS. CONCLUSÃO: Nas condições e métodos usados neste estudo, pode-se inferir que o fluxo sangüíneo na ATIE no enxerto composto (Grupo B) é maior que no enxerto simples (Grupo A), o que demonstra a grande capacidade da ATIE em adaptar-se à demanda de fluxo. Abstract in english OBJECTIVE: To assess the left internal thoracic artery (LITA) flow pattern, when it was used to supply the left anterior descending artery (LADA) and another branch from the left coronary artery system (LCAS). METHODS: In the following study, the left internal thoracic artery flow was investigated b [...] y echocardiography Doppler, at rest and under dobutamine stress, in two twenty-patient groups. Group A consisted of patients who received only a pedicled LITA graft to the LADA. Group B consisted of patients who received a pedicled LITA graft associated with a vein graft to supply the LADA and another artery from the LCAS. The angiographic study showed graft patency in all patients from both groups. The following parameters were used: systolic flow (SF), diastolic flow, total flow, total flow in stress/total flow at rest ratio (TFS/TFR), systolic peak velocities (SPV), diastolic peak velocities and systolic peak velocity/diastolic peak velocity ratio. RESULTS: All analysed parameters were considered statistically significant, except SF, TFS/TFR and SPV. CONCLUSIONS: We concluded that in the same conditions and methodology, the LITA flow in the composite graft (group B) is higher than in the free graft (group A), which shows the great flow adaptability of LITA to respond to flow demand.

José Glauco, Lobo Filho; Maria Cláudia de Azevedo, Leitão; Heraldo Guedis, Lobo Filho; André Albuquerque da, Silva; João José Aquino, Machado; Antonio Jorge de Vasconcelos, Forte; Mauro Paes Leme de, Sá; Eduardo Sérgio, Bastos; Henrique, Murad.

2004-03-01

347

Revascularização miocárdica com enxerto composto de artéria torácica interna esquerda em Y: análise de fluxo sangüíneo Myocardial revascularization surgery using composite Y-graft of the left internal thoracic artery: blood flow analysis  

Directory of Open Access Journals (Sweden)

Full Text Available OBJETIVO: Verificar o comportamento do fluxo sangüíneo na artéria torácica interna esquerda (ATIE, quando utilizada para revascularizar a artéria interventricular anterior (AIA e mais um ramo do sistema coronariano esquerdo (SCE. MÉTODO: No presente estudo, compara-se o fluxo obtido pela ecocardiografia Doppler na ATIE, em repouso e sob estresse com dobutamina, em dois grupos de 20 pacientes cada. No grupo A, foi utilizado enxerto pediculado de ATIE anastomosada unicamente à AIA. No grupo B, a ATIE revasculariza a AIA, e um enxerto de veia safena magna, anastomosado em "Y" à ATIE, revasculariza outro ramo do SCE. O estudo angiográfico demonstrou patência de todos os enxertos em ambos os grupos. Na avaliação pela ecocardiografia Doppler foram realizadas as seguintes medidas: débitos sistólico (DS, diastólico e total, razão entre o débito total em estresse pelo débito total em repouso (DTE/DTR, velocidades de pico sistólico (VPS e diastólico e razão entre essas velocidades. RESULTADOS: Todos os parâmetros analisados apresentaram diferença estatisticamente significativa, com exceção do DS, DTE/DTR e VPS. CONCLUSÃO: Nas condições e métodos usados neste estudo, pode-se inferir que o fluxo sangüíneo na ATIE no enxerto composto (Grupo B é maior que no enxerto simples (Grupo A, o que demonstra a grande capacidade da ATIE em adaptar-se à demanda de fluxo.OBJECTIVE: To assess the left internal thoracic artery (LITA flow pattern, when it was used to supply the left anterior descending artery (LADA and another branch from the left coronary artery system (LCAS. METHODS: In the following study, the left internal thoracic artery flow was investigated by echocardiography Doppler, at rest and under dobutamine stress, in two twenty-patient groups. Group A consisted of patients who received only a pedicled LITA graft to the LADA. Group B consisted of patients who received a pedicled LITA graft associated with a vein graft to supply the LADA and another artery from the LCAS. The angiographic study showed graft patency in all patients from both groups. The following parameters were used: systolic flow (SF, diastolic flow, total flow, total flow in stress/total flow at rest ratio (TFS/TFR, systolic peak velocities (SPV, diastolic peak velocities and systolic peak velocity/diastolic peak velocity ratio. RESULTS: All analysed parameters were considered statistically significant, except SF, TFS/TFR and SPV. CONCLUSIONS: We concluded that in the same conditions and methodology, the LITA flow in the composite graft (group B is higher than in the free graft (group A, which shows the great flow adaptability of LITA to respond to flow demand.

José Glauco Lobo Filho

2004-03-01

348

Aneurisma de artéria ilíaca interna roto: relato de caso Ruptured internal iliac artery aneurysm: case report  

Directory of Open Access Journals (Sweden)

Full Text Available Aneurismas isolados da artéria ilíaca interna são raros, acometem 0,1% da população e correspondem a 1% dos aneurismas aorto-ilíacos. Na maioria das vezes, os pacientes são assintomáticos, mas podem apresentar dor abdominal, massa pulsátil no hipogástrio ou na fossa ilíaca, sintomas compressivos urinários, gastrointestinais ou neurológicos. Podem ocasionar quadro de abdome agudo, principalmente quando há ruptura. O diagnóstico precoce dos aneurismas isolados de artéria ilíaca interna é incomum, sendo identificados quando mais volumosos ou rotos, o que aumenta significativamente sua morbimortalidade e torna seu prognóstico mais reservado. Dessa forma, representam um desafio terapêutico. A ligadura cirúrgica tem sido o tratamento mais comum, entretanto a cirurgia endovascular tem mostrado bons resultados, inclusive nos aneurismas rotos. É relatado caso de aneurisma de artéria ilíaca interna isolado roto diagnosticado durante laparotomia para abordagem de abdome agudo.Isolated internal iliac artery aneurysms are rare. They affect 0.1% of the population, and account for 1% of aortoiliac aneurysms. Patients are mostly asymptomatic, yet they can have abdominal pain, pulsatile mass in the hypogastrium or iliac fossa, or urinary, gastrointestinal or neurological compressive symptoms. Such aneurysms are likely to course with an acute abdomen, especially when ruptured. Early diagnosis of isolated internal iliac artery aneurysms is difficult, as they are more easily detected when larger or ruptured, which significantly raises their morbidity and mortality rate and determines a poor prognosis. Therefore, they are a therapeutic challenge. Surgical ligation has been the most common treatment; however, the endovascular approach has presented good outcomes, even in the event of ruptured aneurysms. A case of ruptured isolated iliac artery aneurysm diagnosed during a laparotomy (acute abdomen approach is reported.

Cristina Toledo Afonso

2009-03-01

349

Derivação com veias de membro superior após trombólise de aneurisma de artéria poplítea: alternativa para salvamento de membro / Arm vein bypass after popliteal artery aneurysm thrombolysis: an alternative for limb salvage  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Os autores relatam um caso de aneurisma de artéria poplítea trombosado em que se realizou fibrinólise com sucesso na fase aguda. Foram utilizadas veias de braço para realização do enxerto e exclusão do aneurisma, pois o paciente havia sido previamente submetido à safenectomia bilateral e revasculari [...] zação do miocárdio com as veias do outro braço. Apesar das dificuldades, o salvamento do membro foi alcançado. Abstract in english The authors report a case of a thrombosed popliteal artery aneurysm successfully treated by fibrinolysis in its acute stage. Arm veins were used to perform a bypass and aneurysm exclusion, since the patient had previously been submitted to bilateral saphenous vein stripping and myocardial revascular [...] ization using the veins of the other arm. Despite the difficulties, limb salvage was achieved.

João Antonio, Corrêa; Maria Carolina Cozzi Pires de Oliveira, Dias; Alexandre César, Fioretti; Yumiko Regina, Yamazaki; João Paulo, Maffei Jr.; Rogério Duque de, Almeida; Fabio Roberto, Batistela; Ohannes, Kafejian.

2007-06-01

350

Nova técnica cirúrgica de preparo da veia safena para revascularização do miocárdio sem manipulação direta - no-touch / Novel no-touch technique of harvesting the saphenous vein for coronary artery bypass grafting  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese FUNDAMENTO: Otimização da veia safena na revascularização miocárdica. OBJETIVO: Apresentar a técnica no-touch de preparo da veia safena. Essa técnica consiste na retirada da veia safena do seu leito, com um pedículo de tecido adiposo, protegendo-a contra espasmos, sendo desnecessário distendê-la. MÉ [...] TODOS: Estudo prospectivo e randomizado, incluindo 156 pacientes submetidos a cirurgia de revascularização miocárdica. Comparação da técnica no-touch com duas outras técnicas: convencional e intermediária. Procedeu-se à avaliação da morfologia endotelial, utilizando a microscopia. A perviabilidade das pontes foi determinada com exame angiográfico num período médio de 18 meses após a operação. A enzima óxido nítrico sintetase endotelial (eNOS) foi identificada por meio do estudo imunohistoquímico. RESULTADOS: A avaliação morfológica mostrou integridade endotelial de 97% nas veias do grupo no-touch; enquanto quase metade da superfície endotelial das veias tratadas pelas outras técnicas exibiu ausência de células endoteliais. A angiografia revelou perviabilidade de 95,4% para as pontes do grupo no-touch, 88,9 e 86,2% para as pontes do grupo convencional e intermediária, respectivamente. O estudo imunohistoquímico revelou a presença da eNOS nas três camadas que compõem a parede da veia no grupo no-touch e redução dessa enzima no grupo convencional. CONCLUSÃO: A integridade endotelial e a atividade da eNOS foram melhor preservadas com o uso da técnica no-touch. A proteção mecânica fornecida pelo tecido gorduroso circundante à veia e a atividade vasodilatadora e bloqueadora da agregação plaquetária causada pelo óxido nítrico podem ser responsáveis pela proteção da veia contra o espasmo, como também por sua alta perviabilidade imediata. Abstract in english BACKGROUND: Optimization of the saphenous vein for myocardial revascularization. OBJECTIVE: To present the no-touch technique of the saphenous vein preparation. This technique consists of harvesting the vein with a pedicle of surrounding tissue, which protects the vein from spasms, obviating the nee [...] d for distension. METHODS: A prospective, randomized study with 156 patients who underwent artery bypass grafting was performed comparing three saphenous vein harvesting techniques: conventional, intermediate, and no-touch. A morphological study of the endothelium was carried out using scanning microscopy. An angiographic assessment of the vein graft patency was performed at a mean follow-up time of 18 months. Also, an immunohistochemical assessment was carried out to identify the endothelial enzyme nitric oxide synthase (eNOS) in the vein wall RESULTS: The preservation of the endothelial cell integrity was greater in the no-touch technique than in the other procedures. At angiographic follow-up, the patency for the no-touch group was 95.4%, 88.9% for the grafts of the conventional technique group, and 86.2% for the grafts performed in the intermediate technique group. The immunohistochemical assessment revealed eNOS in all three layers of the vein wall in the no-touch group and reduction of this enzyme in the conventional group. CONCLUSION: The endothelial integrity and eNOS activity were better preserved when using the no-touch technique for vein graft harvesting. The mechanical protection provided by the cushion of surrounding tissue in the no-touch group, the vasorelaxation and thromboresistant activities of nitric oxide may be responsible for the reduction of vasospasms and improved patency rate.

Fabio de, Rueda; Domingos, Souza; Ricardo de Carvalho, Lima; Alexandre, Menezes; Benny, Johansson; Michael, Dashwood; Emmanuel, Thé; Mário, Gesteira; Mozart, Escobar; Frederico, Vasconcelos.

2008-06-01

351

Nova técnica cirúrgica de preparo da veia safena para revascularização do miocárdio sem manipulação direta - no-touch Novel no-touch technique of harvesting the saphenous vein for coronary artery bypass grafting  

Directory of Open Access Journals (Sweden)

Full Text Available FUNDAMENTO: Otimização da veia safena na revascularização miocárdica. OBJETIVO: Apresentar a técnica no-touch de preparo da veia safena. Essa técnica consiste na retirada da veia safena do seu leito, com um pedículo de tecido adiposo, protegendo-a contra espasmos, sendo desnecessário distendê-la. MÉTODOS: Estudo prospectivo e randomizado, incluindo 156 pacientes submetidos a cirurgia de revascularização miocárdica. Comparação da técnica no-touch com duas outras técnicas: convencional e intermediária. Procedeu-se à avaliação da morfologia endotelial, utilizando a microscopia. A perviabilidade das pontes foi determinada com exame angiográfico num período médio de 18 meses após a operação. A enzima óxido nítrico sintetase endotelial (eNOS foi identificada por meio do estudo imunohistoquímico. RESULTADOS: A avaliação morfológica mostrou integridade endotelial de 97% nas veias do grupo no-touch; enquanto quase metade da superfície endotelial das veias tratadas pelas outras técnicas exibiu ausência de células endoteliais. A angiografia revelou perviabilidade de 95,4% para as pontes do grupo no-touch, 88,9 e 86,2% para as pontes do grupo convencional e intermediária, respectivamente. O estudo imunohistoquímico revelou a presença da eNOS nas três camadas que compõem a parede da veia no grupo no-touch e redução dessa enzima no grupo convencional. CONCLUSÃO: A integridade endotelial e a atividade da eNOS foram melhor preservadas com o uso da técnica no-touch. A proteção mecânica fornecida pelo tecido gorduroso circundante à veia e a atividade vasodilatadora e bloqueadora da agregação plaquetária causada pelo óxido nítrico podem ser responsáveis pela proteção da veia contra o espasmo, como também por sua alta perviabilidade imediata.BACKGROUND: Optimization of the saphenous vein for myocardial revascularization. OBJECTIVE: To present the no-touch technique of the saphenous vein preparation. This technique consists of harvesting the vein with a pedicle of surrounding tissue, which protects the vein from spasms, obviating the need for distension. METHODS: A prospective, randomized study with 156 patients who underwent artery bypass grafting was performed comparing three saphenous vein harvesting techniques: conventional, intermediate, and no-touch. A morphological study of the endothelium was carried out using scanning microscopy. An angiographic assessment of the vein graft patency was performed at a mean follow-up time of 18 months. Also, an immunohistochemical assessment was carried out to identify the endothelial enzyme nitric oxide synthase (eNOS in the vein wall RESULTS: The preservation of the endothelial cell integrity was greater in the no-touch technique than in the other procedures. At angiographic follow-up, the patency for the no-touch group was 95.4%, 88.9% for the grafts of the conventional technique group, and 86.2% for the grafts performed in the intermediate technique group. The immunohistochemical assessment revealed eNOS in all three layers of the vein wall in the no-touch group and reduction of this enzyme in the conventional group. CONCLUSION: The endothelial integrity and eNOS activity were better preserved when using the no-touch technique for vein graft harvesting. The mechanical protection provided by the cushion of surrounding tissue in the no-touch group, the vasorelaxation and thromboresistant activities of nitric oxide may be responsible for the reduction of vasospasms and improved patency rate.

Fabio de Rueda

2008-06-01

352

Procediment d'avaluació interna del doctorat: 18 d'octubre de 2004  

OpenAIRE

Seguint el model d'avaluació interna del doctorat aprovat el passat 2 de juny (http://www.ub.edu/), es relaciona, adjunta, la informació detallada del/s programa/es de doctorat. La documentació de cada programa consta de les parts següents: - Fitxa del programa de doctorat, que incorpora el conjunt de dades i indicadors considerant dos biennis de manera diferenciada (Document 2): o Bienni 2004-2006, pels inputs referents a l¿estructura del professorat. o Bienni 2001-2003, per la...

Universitat de Barcelona

2007-01-01

353

Hacia una critica interna de la teoría del intercambio desigual de Emmanuel  

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Full Text Available El presente ensayo constituye apenas una versión parcial y preliminar de un trabajo más extenso que el autor está desarrollando sobre la teoría del intercambio desigual de Emmanuel. Entendido así el carácter de éste, su objetivo se limita únicamente a estudiar los principales supuestos, inconsistencias y vicios teóricos y metodológicos implícitos en
el "traslado" particular que Emmanuel realiza del esquema de precios de Marx al plano del comercio internacional. En otras palabras, el análisis aquí incluido corresponde más a lo que en la literatura se denomina una crítica interna que a una crítica externa de la teoría de intercamhio desigual de Emmanuel.

Garay S. Luis Jorge

1980-12-01

354

FRICCIÓN INTERNA Y COMPORTAMIENTO ANELÁSTICO EN SÓLIDOS / INTERNAL FRICTION AND ANAELSTIC BEHAVIOR IN SOLIDS  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: Spanish Abstract in spanish Se presentan los conceptos de Fricción Interna (FI), anelasticidad y espectroscopia mecánica, como una técnica potente para la determinación de las propiedades mecánicas dinámicas en sólidos. Se comentan algunos de los logros de la técnica, fundamentalmente en el campo de la física del estado sólido [...] . Abstract in english This is a review of Internal Friction (IF), anelasticity and mechanical spectroscopy concepts, as a method to determine the dynamic mechanical properties in solids. Achievements of internal friction technique are also commented, especially in the field of physics of solid state. [...

HENRY A., COLORADO L; CÉSAR, CHAVES ROLDÁN; JUAN MANUEL, VÉLEZ.

2006-03-01

355

UN ANÁLISIS ESPACIAL DE LAS MIGRACIONES INTERNAS EN COLOMBIA (2000-2005  

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Full Text Available El objetivo de este documento es realizar un análisis espacial acerca de la dinámica de las migraciones internas recientes en Colombia; en específico durante el periodo del 2000-2005 con base en información censal. Así, se identifica mediante un modelo gravitacional que los flujos migratorios inter-departamentales en Colombia se dirigieron hacia los departamentos más poblados, con mayores ingresos y con tradición migratoria. En adición, se encuentra que durante este mismo periodo Guaviare fue el departamento donde se presentó una mayor probabilidad de emigrar y hacia las zonas vecinas; por otro lado, Antioquia fue el departamento donde se presentó menor probabilidad de emigrar.

ADRIANA CAROLINA SILVA ARIAS

2009-01-01

356

Implante de filtro de veia cava inferior guiado por ultra-som: relato de dois casos Placement of inferior vena cava filter guided by ultrasound: report of two cases  

OpenAIRE

A instalação percutânea dos filtros de veia cava inferior é realizada, tradicionalmente, em sala de angiografia ou em centro cirúrgico, utilizando-se fluoroscopia e infusão de contraste iodado para adequado posicionamento do dispositivo. Porém, para pacientes internados em unidades de tratamento intensivo com condição clínica ruim para o transporte ou com função renal deteriorada, o deslocamento e a nefrotoxicidade dos contrastes iodados são, freqüentemente, motivos de preocupa?...

Rogério Abdo Neser; Mauro Capasso Filho; Cristina Mieko de Oliveira Homa

2006-01-01

357

Esclerite posterior associada à oclusão da veia central da retina e edema macular cistoide: relato de caso Posterior scleritis associated with central retinal vein occlusion and cystoid macular edema: case report  

OpenAIRE

Apresentamos um caso de esclerite posterior associada à oclusão da veia central da retina e edema macular cistoide. Com esse caso, observamos como a doença pode ser agressiva e como a acuidade visual pode ser comprometida. No entanto, o tratamento correto pode melhorar as alterações oculares com melhora visual. Alertamos também para os cuidados que deve