WorldWideScience

Sample records for cerumen

  1. Optical diffusion property of cerumen from ear canal and correlation to metal content measured by synchrotron x-ray absorption

    Science.gov (United States)

    Holden, Todd; Dehipawala, Sumudu; Cheung, E.; Golebiewska, U.; Schneider, P.; Tremberger, G., Jr.; Kokkinos, D.; Lieberman, D.; Dehipawala, Sunil; Cheung, T.

    2012-03-01

    Human (and other mammals) would secrete cerumen (ear wax) to protect the skin of the ear canal against pathogens and insects. The studies of biodiversity of pathogen in human include intestine microbe colony, belly button microbe colony, etc. Metals such as zinc and iron are essentials to bio-molecular pathways and would be related to the underlying pathogen vitality. This project studies the biodiversity of cerumen via its metal content and aims to develop an optical probe for metal content characterization. The optical diffusion mean free path and absorption of human cerumen samples dissolved in solvent have been measured in standard transmission measurements. EXFAS and XANES have been measured at Brookhaven Synchrotron Light Source for the determination of metal contents, presumably embedded within microbes/insects/skin cells. The results show that a calibration procedure can be used to correlate the optical diffusion parameters to the metal content, thus expanding the diagnostic of cerumen in the study of human pathogen biodiversity without the regular use of a synchrotron light source. Although biodiversity measurements would not be seriously affected by dead microbes and absorption based method would do well, the scattering mean free path method would have potential to further study the cell based scattering centers (dead or live) via the information embedded in the speckle pattern in the deep-Fresnel zone.

  2. Antifungal effect of cerumen on fungi causing otomycosis

    Directory of Open Access Journals (Sweden)

    Arezoo Jahanbin

    2010-04-01

    Full Text Available Introduction: The purpose of this study was to evaluate anthropometric parameters of lip - nose complex in 11-17 years old males in Mashhad using photographic analysis.   Materials and Methods: Number of 357 Fars boys (11-17 years old, residence in Mashhad were included in this study. They were all class.I. Some frontal and lateral photographs of natural head position were taken by a digital camera. After landmark determination, anthropometric parameters including alar width, mouth width, nose height, cupid arch width, vertical height of lips, columellar width, nasolabial angle and nasal root slope angle were determined by Smile Analyzer software while Kruskal – Wallis test was used for data analyses. Results: This study revealed that alar width, nasal height and mouth width were increasing gradually within 11 to 16 years of age. But nose height to nose width proportion did not show any significant differences in different age groups (P=0.097. Nasolabial angle in different age groups had no significant statistical differences and it was between 95.83 and 100.05 (P=0.315. However for Cph-Cph, the distance was decreasing first and then increasing with no significant differences among age groups. Conclusion: Except significant differences observed in different age groups about nasolabial angle and nasal index, there were not any other significant differences for other anthropometric parameters. It could be helpful in orthodontic and surgical treatment planning.  

  3. Comparing Cerumen Bacterial Flora in Acute Otitis Externa Patients and Healthy Controls

    Directory of Open Access Journals (Sweden)

    Keyvan Kiakojori

    2010-07-01

    Full Text Available Introduction: In spite of the fact that acute otitis media is a systemic and symptomatic disease with sever otalgia, otitis media with effusion (OME is an asymptomatic and silent disease. OME is the most common cause of conductive hearing loss in children and has adverse effects on speech development and cognitive skills. Results: Among 1001 children under study, 57 subjects (5.7% were diagnosed with OME, more than 50% of which were asymptomatic. Periodic otalgia and turning up television volume were the most common symptoms. Conclusion: Regarding the improved knowledge on diagnosis and treatment of OME especially in younger children, hearing problems or cognitive and linguistic skills retardation may be avoided by promoting general information.

  4. Ear Candling: A Dangerous Pleasure?

    Directory of Open Access Journals (Sweden)

    Kianoosh Nahid

    2011-01-01

    Full Text Available Ear candling is an alternative medicine practice alleged to enhance general health by putting an end of a hollow candle in the ear canal and lighting up the other end of it. It also is advertised for cerumen and debris (bacteria and fungi removal. Ear candling is claimed to create negative pressure for drawing cerumen from the ear and to benefit the ears in many ways. It is however not free of complications and is now banned. Here we would like to highlight potential complications to this.

  5. Ear Candling: A Dangerous Pleasure?

    Directory of Open Access Journals (Sweden)

    Kianoosh Nahid

    2011-01-01

    Ear candling is claimed to create negative pressure for drawing cerumen from the ear and to benefit the ears in many ways. It is however not free of complications and is now banned. Here we would like to highlight potential complications to this.

  6. Innovative technologies in diagnosing acute otitis media.

    Science.gov (United States)

    Shand, Kate D; Campe, Kristin

    2016-01-01

    New guidelines for managing acute otitis media include stricter criteria for properly diagnosing the condition and ensuring an accurate diagnosis before clinicians make treatment decisions. This is key because of the increase in antibiotic-resistant pathogens. This article focuses on how clinicians can use ancillary techniques and technologies to improve diagnostic accuracy for acute otitis media. Techniques include proper cerumen removal, visualizing the tympanic membrane with the correct otoscope, pneumatic otoscopy, using a spectral gradient acoustic reflectometer, and tympanometry.

  7. Video otoscopy as a diagnostic tool for canine otoacariasis.

    Science.gov (United States)

    de Souza, Clarissa Pimentel; Verocai, Guilherme Gomes; Balbi, Margareth; Scott, Fabio Barbour

    2013-01-01

    Canine otoacariasis, or otodectic mange, is a common parasitic disorder of dogs' ear canals caused by the mite Otodectes cynotis. Infestation can be detected through diverse protocols of varying sensitivity. We evaluated the use of video otoscopy in comparison with conventional otoscopy and cerumen examination under a microscope for diagnosing O. cynotis in dogs. Thirty-five dogs were evaluated bilaterally for the presence of ear mites, using a veterinary otoscope (Gowlands®), a video otoscope (Welch Allyn®) and the gold-standard technique of examination of swab-collected cerumen under a microscope. Each ear was considered to represent one sample, and 69 ears were examined, since one dog presented with one completely stenotic ear canal. Ear mites were diagnosed in 59.42% (41/69) through video otoscopy. The same 41 infested ear canals were detected by means of cerumen examination under a microscope, whereas conventional otoscopy was able to diagnose mites in only 39.13% (27/69). This difference was statistically significant (p < 0.001). Video otoscopy proved to be superior to conventional otoscopy, and equivalent to the gold standard for detection of O. cynotis in canine ear canals, and should be recommended for controlled trials on drug efficacy for treatment of canine otoacariasis.

  8. [External auditory canal osteoma resulting in cholesteatoma which is complicated with meningitis].

    Science.gov (United States)

    Yorgancılar, Ediz; Kınış, Vefa; Gün, Ramazan; Bakır, Salih; Ozbay, Musa; Topçu, Ismail

    2013-01-01

    Osteoma of external auditory canal is a unilateral benign tumor which usually presents with no symptoms. They only cause symptoms when cerumen collection or conduction type hearing loss occurs. They are the most common osseous lesions of the temporal bone. It very rarely presents with cholesteatoma. So far, no osteoma case concomitant with, cholesteatoma and meningitis has not been reported. In this article, we report an interesting case presenting with external auditory canal osteoma, cholestatoma and meningitis concomitantly who was treated successfully using the canal Wall-down mastoidectomy technique.

  9. Predictors of hearing loss in school entrants in a developing country

    Directory of Open Access Journals (Sweden)

    Olusanya Bola

    2004-07-01

    Full Text Available Background: Hearing loss is a prevalent and significant disability that impairs functional development and educational attainment of school children in developing countries. Lack of a simple and practical screening protocol often deters routine and systematic hearing screening at school entry. Aim: To identify predictors of hearing loss for a practical screening model in school-aged children. Settings and Design: Community-based, retrospective case-control study of school entrants in an inner city. Methods: Results from the audiologic and non-audiologic examination of 50 hearing impaired children in randomly selected mainstream schools were compared with those of a control group of 150 normal hearing children, matched for age and sex from the same population. The non-audiologic evaluation consisted of medical history, general physical examination, anthropometry, motor skills, intelligence and visual acuity while the audiologic assessment consisted of otoscopy, audiometry and tympanometry. Statistical Analysis: Multiple logistic regression analysis of significant variables derived from univariate analysis incorporating student t-test and chi-square. Results: Besides parental literacy (OR:0.3; 95% CI:0.16-0.68, non-audiologic variables showed no association with hearing loss. In contrast, most audiologic indicators, enlarged nasal turbinate (OR:3.3; 95% CI:0.98-11.31, debris or foreign bodies in the ear canal (OR:5.4; 95% CI:1.0-36.03, impacted cerumen (OR:6.2; 95% CI:2.12-14.33, dull tympanic membrane (OR:2.2; 95% CI:1.10-4.46, perforated ear drum (OR:24.3; 95% CI:2.93-1100.17 and otitis media with effusion OME (OR:14.2; 95% CI:6.22-33.09, were associated with hearing loss. However, only parental literacy (OR:0.3; 95% CI:0.16-0.69, impacted cerumen (OR:4.0; 95% CI:1.66-9.43 and OME (OR:11.0; 95% CI:4.74-25.62 emerged as predictors. Conclusion: Selective screening based on the identification of impacted cerumen and OME will facilitate the

  10. New combination for the therapy of canine otitis externa. I. Microbiology of otitis externa.

    Science.gov (United States)

    Kiss, G; Radványi, S; Szigeti, G

    1997-02-01

    In order to compound a new drug combination against canine otitis externa (OE), 515 dogs affected with OE were subjected to physical examination and microbiological analysis of their ear exudates. OE was erythematous-ceruminous in 83 per cent and suppurative in 17 per cent of the patient material. Erythematous-ceruminous inflammations were characterised by severe pruritus and accumulation of brownish, greasy cerumen in the auditory canal. The yeast Malassezia pachydermatis was isolated from the ears of 76 per cent of the dogs, often in combination with Staphylococcus intermedius bacteria. M pachydermatis showed the most sensitivity, in decreasing order of efficacy, to ketoconazole, econazole, clotrimazole, miconazole and nystatin. S intermedius isolates were most sensitive to amoxycillin-clavulanic acid, enrofloxacin, cephalexin and gentamicin. The microorganism most frequently isolated from dogs with suppurative OE was Pseudomonas aeruginosa; in some cases Proteus, Streptococcus and Pasteurella were also isolated. The P aeruginosa isolates showed the highest sensitivity to gentamicin, polymyxin B and tobramycin.

  11. The feasibility of audiologists removing earwax.

    LENUS (Irish Health Repository)

    Browne, T

    2014-11-01

    Although cerumen management (CM) is routinely performed by audiologists in some countries, this is currently not the case in the Republic of Ireland. This study involved surveying the opinions of Audiologists and Ear Nose and Throat specialists (ENTs) in relation to audiologists conducting CM. In total, 20 ENT Consultants (29%) and 51 audiologists (64%) in the public services responded to an online survey. There was agreement that CM should be within audiologists\\' remit. However, with regard to risk, opinions were significantly different, with 15 ENTs (75%), compared to 14 audiologists (27%), in agreement that CM management by audiologists was more risky to patients. Nevertheless, 62 respondents (87%) supported future CM training for audiologists. The. overall similarities of opinion between the two groups contrasted to previous studies that reported strong opposition from ENTs with regard to audiologists managing earwax.

  12. Ceruminous gland adenoma

    Directory of Open Access Journals (Sweden)

    Himanshu Varshney

    2014-01-01

    Full Text Available Ceruminous adenoma is a rare neoplasm of the external auditory meatus (EAM with benign clinical behavior. They demonstrate a dual cell population of basal myoepithelial-type cells and luminal ceruminous cells. Cerumen pigment, cytokeratin 7 (CK7 and p63 can help to distinguish this tumor from other neoplasms that occur in the region. Complete surgical excision results in an excellent long-term clinical outcome. We present a case of histologically confirmed ceruminous adenoma of the EAM in a surgically treated 38-year-old female. She presented with recurrent serosanguineous discharge along with flakes from the right ear along with hearing impairment. She is doing well in last 8 months follow-up.

  13. External auditory canal atresia of probable congenital origin in a dog.

    Science.gov (United States)

    Schmidt, K; Piaia, T; Bertolini, G; De Lorenzi, D

    2007-04-01

    A nine-month-old Labrador retriever was referred to the Clinica Veterinaria Privata San Marco because of frequent headshaking and downward turning of the right ear. Clinical examination revealed that there was no external acoustic meatus in the right ear. Computed tomography confirmed that the vertical part of the right auditory canal ended blindly, providing a diagnosis of external auditory canal atresia. Cytological examination and culture of fluid from the canal and the bulla revealed only aseptic cerumen; for this reason, it was assumed that the dog was probably affected by a congenital developmental deformity of the external auditory canal. Reconstructive surgery was performed using a "pull-through" technique. Four months after surgery the cosmetic and functional results were satisfactory.

  14. Freqüência de Malassezia pachydermatis em otite externa de cães

    Directory of Open Access Journals (Sweden)

    Leite C.A.L.

    2003-01-01

    Full Text Available The occurrence of Malassezia pachydermatis in the ears of dogs with otitis externa, comparing both direct exam and growth on culture method was evaluated. Auditory cerumen/exsudate specimens of 50 dogs with otitis externa were analized for M.pachydermatis. Stained by Giemsa, were prepared and microscopically analysed for budding yeasts. Each sample was cultured on modified Sabouraud glucose agar incubated at 28°C (82.4 F for detection of M. pachydermatis. The frequency of M. pachydermatis from auditory meatus of otitic dogs was 79% (direct microscopy and 88% (growth on modified Sabouraud glucose agar, and no difference between the results provided by both methods used in the fungus detection was observed.

  15. Emissões otoacústicas por produtos de distorção em crianças de 2 a 7 anos Otoacoustic emissions by distorcion products in children of 2 to 7 years old

    Directory of Open Access Journals (Sweden)

    Alfredo R. Dell'Aringa

    2004-06-01

    distortions products. The DPOAE is an objective exam, fast, non painful, non invasive and easy to prescribe for screening in patients with hearing loss, and allow diagnoses and early rehabilitation. STUDY DESIGN: Transversal cohort. MATERIAL AND METHOD: All children of Lar da Criança in Marília, SP, after previous authorization of the responsible, were submitted to on otorhinolaryngology exam and DPOAE. RESULTS: The results presented that one hundred and five children participated in the study and 44,76% presented cerumen. Twelve children even after use of ceruminolytic and ear clearing persist with cerumen, or don't have parents or responsible permission. These children were exclude in the study. and 93 children were submitted to DPOAE After doing DPOAE in 93 patients, 5,37% were changed; 60% were male and 60% had bilateral changed. DISCUSSION: The results were lower than the results find in literature, even the male predominance. Besides, we observe high prevalence of cerumen in our patients. CONCLUSION: Its essential an otorhinolaryngology evaluation before doing the DPOAE. It could be done in newborn, children and adults for early detection and prevention of failure in the cognitive and psycho-emotional development.

  16. Selective pressurized liquid extraction of pesticides, polychlorinated biphenyls and polybrominated diphenyl ethers in a whale earplug (earwax): a novel method for analyzing organic contaminants in lipid-rich matrices.

    Science.gov (United States)

    Robinson, Eleanor M; Trumble, Stephen J; Subedi, Bikram; Sanders, Rebel; Usenko, Sascha

    2013-12-01

    Lipid-rich matrices are often sinks for lipophilic contaminants, such as pesticides, polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs). Typically methods for contaminant extraction and cleanup for lipid-rich matrices require multiple cleanup steps; however, a selective pressurized liquid extraction (SPLE) technique requiring no additional cleanup has been developed for the simultaneous extraction and cleanup of whale earwax (cerumen; a lipid-rich matrix). Whale earwax accumulates in select whale species over their lifetime to form wax earplugs. Typically used as an aging technique in cetaceans, layers or laminae that comprise the earplug are thought to be associated with annual or semiannual migration and feeding patterns. Whale earplugs (earwax) represent a unique matrix capable of recording and archiving whales' lifetime contaminant profiles. This study reports the first analytical method developed for identifying and quantifying lipophilic persistent organic pollutants (POPs) in a whale earplug including organochlorine pesticides, polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs). The analytical method was developed using SPLE to extract contaminants from ∼0.25 to 0.5g aliquots of each lamina of sectioned earplug. The SPLE was optimized for cleanup adsorbents (basic alumina, silica gel, and Florisil(®)), adsorbent to sample ratio, and adsorbent order. In the optimized SPLE method, the earwax homogenate was placed within the extraction cell on top of basic alumina (5g), silica gel (15g), and Florisil(®) (10g) and the target analytes were extracted from the homogenate using 1:1 (v/v) dichloromethane:hexane. POPs were analyzed using gas chromatography-mass spectrometry with electron capture negative ionization and electron impact ionization. The average percent recoveries for the POPs were 91% (±6% relative standard deviation), while limits of detection and quantification ranged from 0.00057 to 0.96ngg(-1

  17. External Ear Resonant Amplitude and Frequency of 3-7 Year Old Children

    Directory of Open Access Journals (Sweden)

    Amir Hossein Zare

    2004-06-01

    Full Text Available Objective: To measure external ear resonant amplitude and frequency in children (3-7 years old and to compare with adult measures. Method and materials: The external ear resonance peak amplitude and frequency of 63 children 3-7 years old were recorded. All of the children had normal tympanogram and there was no cerumen in external auditory canal. 20 adult of 21-24 years old (10 male , 10 female were selected in order to compare with children that had normal tympanogram. The tests included : 1-otoscopy 2- tympanometry 3-microphone probe tube test. Results: The average of resonance peak frequency for children and adult is 4200 Hz and 3200 Hz , respectively. The resonance frequency of children had significantly diffrence with average of resonance frequency in adults. The average of resonance peak amplitude for children and adult is 17.70 dB and 17.17 dB , respectively. Conclusion: Resonant frequency and amplitude affect the hearing aid prescription and fitting process and calculating insertion gain; so, this measures seem should be considered in children hearing aid fitting.

  18. Inductively coupled plasma mass-spectrometric determination of platinum in excretion products of client-owned pet dogs.

    Science.gov (United States)

    Janssens, T; Brouwers, E E M; de Vos, J P; de Vries, N; Schellens, J H M; Beijnen, J H

    2015-06-01

    Residues of antineoplastic drugs in canine excretion products may represent exposure risks to veterinary personnel, owners of pet dogs and other animal care-takers. The aim of this study was to measure the extent and duration of platinum (Pt) excretion in pet dogs treated with carboplatin. Samples were collected before and up to 21 days after administration of carboplatin. We used validated, ultra-sensitive, inductively coupled plasma-mass spectrometry assays to measure Pt in canine urine, faeces, saliva, sebum and cerumen. Results showed that urine is the major route of elimination of Pt in dogs. In addition, excretion occurs via faeces and saliva, with the highest amounts eliminated during the first 5 days. The amount of excreted Pt decreased over time but was still quantifiable at 21 days after administration of carboplatin. In conclusion, increased Pt levels were found in all measured excretion products up to 21 days after administration of carboplatin to pet dogs, with urine as the main route of excretion. These findings may be used to further adapt current veterinary guidelines on safe handling of antineoplastic drugs and treated animals. PMID:23714139

  19. A survey of mycotic otitis externa of dogs in Lisbon.

    Science.gov (United States)

    Bernardo, F M; Martins, H M; Martins, M L

    1998-09-01

    One hundred and thirteen dogs of different breeds and with different clinical forms of external otitis were mycologically and bacteriologically examined. Forty six of those dogs showed abnormal cerumen with a high yeasts contamination. These yeasts belong to four species: Malassezia pachydermatis (80.4%), Cryptococcus laurentii (13.1%), Candida parapsilosis (4.3%) and Trichosporon cutaneum (2.1%). All strains, excepting C. laurentii were highly lipolytic. Most of the clinical cases associated with those yeasts were chronic, with hyperkeratosis and lichenification, and most of them were relapsed otitis (91.3%). The most affected dogs were a pendulous ears breeding (65.7%) and males (86.8%). Some dogs had other cutaneous disorders (seborrhoeic dermatitis, pemphigus). In vitro tests, using seven different antifungal drugs were systematically performed. All strains revealed to be 5-fluorocytosine-resistant and 32% of them were also resistant to nystatin. One M. pachydermatis isolated was resistant to all of the tested antifungal drugs. PMID:18473540

  20. Prevalence of Malassezia spp. in the ears of asymptomatic cattle and cattle with otitis in Brazil.

    Science.gov (United States)

    Duarte, E P; Melo, M M; Hahn, R C; Hamdan, J S

    1999-06-01

    Yeasts of the genus Malassezia are lipophilic microorganisms that are saprophytes that can act as opportunistic pathogens in animals. Malassezia pachydermatis is commonly isolated from the ear canal and skin of healthy dogs, or in association with seborrheic dermatitis and otitis externa conditions. The objective of the present study was to determine the occurrence of Malassezia spp. in the ears of healthy bovines and bovines with otitis. Specimens (secretion or cerumen) were collected with sterile swabs, inoculated onto Mycosel medium, supplemented with olive oil, and incubated at 35 degrees C for 1 week. Yeasts were identified according to morphological characteristics, growth in Dixon medium at 32 degrees C and Sabouraud glucose medium modified by the addition of Tween 20, 40 or 80. The results showed that 54.7% of the cultures were positive in bovines with otitis (75) and 34.6% were positive in healthy bovines (378). Analysis of the positive cultures (41) from animals with otitis allowed presumptive identification of 24 strains corresponding to M. globosa (12), M. slooffiae (5), M. furfur (5) and M. sympodialis (2). Further studies on a larger number of animals may confirm the trend verified thus far, i.e. a higher frequency of isolation of Malassezia spp. from animals with otitis than from healthy animals (P<0.01) and a predominance of the species M. globosa. PMID:10498444

  1. Prevalence of hearing impairement in the district of Lucknow, India

    Directory of Open Access Journals (Sweden)

    Anupam Mishra

    2011-01-01

    Full Text Available A multi-cluster study (survey was carried out by department of ENT KG Medical University, Lucknow from July 2003 to August 2004 in rural and urban population of Lucknow district to estimate prevalence and causes of hearing impairment in the community. Data included audiological profile and basic ear examination that was analysed through EARFORM software program of WHO. Overall hearing impairment was seen in 15.14% of rural as opposed to 5.9% of urban population. A higher prevalence of disabling hearing impairment (DHI in elderly and deafness in 0-10 years age group was seen. The prevalence of sensorineural deafness necessitating hearing aids was 20% in rural and 50% in urban areas respectively. The presence of DHI was seen in 1/2 urban subjects and 1/3rd of rural counterparts. The incidence of cerumen / debris was very common in both types of population and the need of surgery was much more amongst rural subjects indicating more advanced / dangerous ear disease.

  2. Detection of hepatitis B virus infection: A systematic review

    Institute of Scientific and Technical Information of China (English)

    Mallika; Ghosh; Srijita; Nandi; Shrinwanti; Dutta; Malay; Kumar; Saha

    2015-01-01

    AIM: To review published methods for detection of hepatitis B virus(HBV) infection.METHODS: A thorough search on Medline database was conducted to find original articles describing different methods or techniques of detection of HBV, which are published in English in last 10 years. Articles outlining methods of detection of mutants or drug resistance were excluded. Full texts and abstracts(if full text not available) were reviewed thoroughly. Manual search of references of retrieved articles were also done. We extracted data on different samples and techniques of detection of HBV, their sensitivity(Sn), specificity(Sp) and applicability.RESULTS: A total of 72 studies were reviewed. HBV was detected from dried blood/plasma spots, hepatocytes, ovarian tissue, cerumen, saliva, parotid tissue, renal tissue, oocytes and embryos, cholangiocarcinoma tissue, etc. Sensitivity of dried blood spot for detecting HBV was > 90% in all the studies. In case of seronegative patients, HBV DNA or serological markers have been detected from hepatocytes or renal tissue in many instances. Enzyme linked immunosorbent assay and Chemiluminescent immunoassay(CLIA) are most commonly used serological tests for detection. CLIA systems are also used for quantitation. Molecular techniques are used qualitatively as well as for quantitative detection. Among the molecular techniques version 2.0 of the Cobas Ampliprep/Cobas Taq Man assay and Abbott’s real time polymerase chain reaction kit were found to be most sensitive with a lower detection limit of only 6.25 IU/m L and 1.48 IU/m L respectively. CONCLUSION: Serological and molecular assays are predominant and reliable methods for HBV detection. Automated systems are highly sensitive and quantify HBV DNA and serological markers for monitoring.

  3. Evaluation of fungal flora in normal and diseased canine ears.

    Science.gov (United States)

    Campbell, Jacquelyn J; Coyner, Kimberly S; Rankin, Shelley C; Lewis, Thomas P; Schick, Anthea E; Shumaker, Amy K

    2010-12-01

    This study was undertaken to characterize otic fungal flora encountered in normal dogs, atopic dogs with no clinical or cytological evidence of otitis and dogs with otitis externa. Forty-two normal dogs, 23 atopic dogs and 32 dogs with otitis were included in the study. Samples for otic fungal culture and cytology were obtained from all animals, for a total of 194 ears. Sixty-seven ear samples (34%) were culture positive for saprophytic fungal organisms, as follows: 43 (64%) Penicillium species, 13 (19%) Aspergillus species and the remaining 17% comprised of various other saprophytic fungal organisms. Cytological evidence of saprophytic fungal colonization or infection was not found in any animal. There was no relationship between positive saprophytic fungal culture and any study group. Thirty-three ear samples (17%) were positive for Malassezia pachydermatis. Cytological findings of Malassezia were significantly associated with positive culture for Malassezia (P = 0.006 left ear; P = 0.019 right ear). Furthermore, increased numbers of Malassezia led to a higher chance of positive culture (P = 0.003 left ear; P = 0.008 right ear; McNemar's test). Malassezia pachydermatis was more likely to be cultured from ears with increased cerumen. Ear type (erect or pendulous) was not significantly associated with positive culture for Malassezia or saprophytic fungal organisms. There was no relationship between positive Malassezia culture and any study group; however, Malassezia was more likely to be cultured from individual dogs in the atopic or otitis groups that also had other dermatological signs consistent with allergic dermatitis and/or pyoderma (P = 0.031 left ear; P = 0.005 right ear). PMID:20868397

  4. Otomycosis: a retrospective study Otomicoses: um estudo retrospectivo

    Directory of Open Access Journals (Sweden)

    Zélia Braz Vieira da Silva Pontes

    2009-06-01

    Full Text Available Otomycosis is a fungal infection of the external ear canal with only a few studies about its real frequence in Brazil. AIM: to evaluate otomycosis frequence and characteristics in patients with clinical suspicion of external otitis. STUDY DESIGN: Retrospective study with transversal cohort (2000-2006. MATERIALS AND METHODS:103 patients were assigned to mycological diagnosis (direct microscopic examination and culture. RESULTS: Otomycosis was diagnosed in 19.4% of the patients. Patient age varied from 2 to 66 years (an average of 23.5 years of age, and 60% of otomycosis cases were seen in women between 2 to 20 years of age. Chronic otitis, previous antibiotic therapy and the lack of cerumen were predisposing factors; itching, otalgia, otorrhea and hypoacusis were the symptoms reported by the patients. The most frequently isolated species were C. albicans (30%, C. parapsilosis (20%, A. niger (20%, A. flavus (10%, A. fumigatus (5%, C. tropicalis (5%, Trichosporon asahii (5% and Scedosporium apiospermum (5%. CONCLUSIONS: Otomycosis is endemic in João Pessoa-PB. Clinical exam and mycological studies are important for diagnostic purposes because otomycosis symptoms are not specific.Otomicose é uma infecção fúngica do conduto auditivo externo com poucos estudos sobre sua real frequência no Brasil. OBJETIVO: Avaliar a frequência e características das otomicoses em pacientes com suspeita clínica de otite externa. DESENHO DO ESTUDO: Estudo retrospectivo com corte transversal (2000-2006. MATERIAL E MÉTODOS: 103 pacientes foram atendidos para diagnóstico micológico (exame microscópico direto e cultivo. RESULTADOS: Otomicoses foram diagnosticadas em 19,4% dos pacientes. A idade desses pacientes variou de 2 a 66 anos (média de 23,5 anos e 60% das otomicoses foram observadas em mulheres entre 2 a 20 anos de idade. Otite crônica, antibioticoterapia prévia e ausência de cerume foram os fatores predisponentes e prurido otológico, otalgia

  5. 不同原因耳聋患者耳鸣的发生率调查%The Incidence of Tinnitus and Hearing Loss with Different Diseases

    Institute of Scientific and Technical Information of China (English)

    刘蓬; 阮紫娟; 龚慧涵; 郭恩钦; 安玲玲

    2011-01-01

    Objective To provide clinic data to study the pathogenesis of tinnitus and the incidence and correlation of tinnitus and hearing loss with different diseases. Methods The clinic investigation was conducted for 376 hearing loss with different diseases consisting of 120 cases of sudden deafness, 21 cases of Meniere diseases, 10 cases of noise deafness, 10 cases of presbycusis, 70 cases of unknown causes sensorineural deafness, 70 cases of suppurative otitis media, 45 cases of secretory otitis media, 10 cases of otosclerosis, 2 cases of ossicular chain malformations, 4 cases of traumatic tympanic membrane perforation, 4 cases of external auditory canal cholesteatoma, 10 cases of impacted cerumen. Each patient was interviewed in detail regarding tinnitus onset and the degree of correlation about tinnitus and hearing loss was determined for the time and location. Results In 376 cases of deafness, the incidence of tinnitus are 51.3% ,and the incidence of tinnitus related deafness is 43.6%. The incidence of tinnitus is different in different diseases: sudden deafness and Meniere's disease are higher 90%, 85.7% respectively, while noise deafness may also be higher. The other diseases are very lower with an average of 13.3%. Conclusion No tinnitus has been noted in more than half of deaf cases, further research is warranted.%目的 对不同疾病致聋患者耳鸣的发生率及耳鸣与所患耳疾的有关与否进行调查,为进一步研究耳鸣的发病机理提供临床资料.方法 对376例不同原因导致的耳聋患者进行临床调查,包括突发性聋120例,梅尼埃病21例,噪声性聋10例,老年性聋10例,不明原因感音神经性聋70例,化脓性中耳炎70例,分泌性中耳炎45例,耳硬化10例,听骨链畸形2例,外伤性鼓膜穿孔4例,外耳道胆脂瘤4例,耵聍栓塞10例.对每例患者详细询问是否出现耳鸣,并根据耳鸣与耳聋发生的时间先后及部位等判定二者的相关程度.结果 376例耳聋患

  6. 某区集体儿童耳声发射筛查8521例听力结果分析%Analysis of 8521 Cases of Children Screening by Otoacoustic Emission in a District

    Institute of Scientific and Technical Information of China (English)

    尚佳; 贾明珍; 陈庆红; 熊丽

    2013-01-01

    Objective:To understand the children’s auditory status by screening 2.5-6 years children in nurseries of Chenghua district in Chengdu, and finding out the listening loss children in early stage. Carry out early interference actions to them, effectively reducing the occurrence of language&hearing disability. Method:Utilizing the Otoacoustic Emission to do hearing test for 8521 children in nurseries total y (3048 children in city and 5473 in countryside), and analyzing the statistic results. Results:Total 1294 children are positive screening in initial Otoacoustic Emission, the rate is 15.19%, including city children 493 and countryside children 801. In the re-screening after 4 weeks, 361 children are positive stil . By acoustic impedance test, the etiologies list as below (someone has two or more repetition etiology): 291 cases of impacted cerumen, 104 cases of catarrhal otitis media, 106 cases of otitis externa, 1 of perforation of tympanic membrane, 87 cases of acute rhinitis, 4 cases of sinusitis, and 5 of nerve deafness.Conclusion:The screening result has obvious geographic differences. The positive screening in countryside children is much more than in city children, and more boys than girls. In order to make a definite diagnosis and provide the most effective treatment for children’s hearing loss, so as to timely improve their communicative skil s in language acquisition and behavior modulation, it is very necessary and important to do the early auditory screening for them.%目的:了解成都市成华区内托幼机构2.5-6岁儿童听力现状,尽早发现听力障碍问题儿童,采取早期干预措施,可有效减少听力言语残疾的发生。方法:运用客观测试技术耳声发射,随机抽取成都市成华区所属幼儿园8521名儿童进行听力检查,其中城市幼儿园3048名儿童,农村幼儿园5473名儿童,并统计分析筛查结果。结果:8521例儿童中,耳声发射初筛阳性检出1294人,占15.19%