Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 27
Filter
1.
Mycoses ; 67(1): e13686, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38214363

ABSTRACT

BACKGROUND: Otomycosis is an infection of the external auditory canal caused by molds and yeasts with descending frequency. Laboratory diagnosis is usually confirmed by microscopy and culture. However, they are not specific enough to reliably differentiate the causative agents, especially for rare pathogens such as Candida auris. The purpose of the current study was to the molecular screening of C. auris species from direct clinical samples of patients with suspected otomycosis in Southern of Iran. MATERIALS AND METHODS: A total of 221 ear aspirates collected from 221 patients with suspected otomycosis over a four-year period. All the ear aspirations were examined with pan-fungal primers, then those with a positive result was included in two separate reaction mixtures simultaneously to identify the most clinically relevant Aspergillus and Candida species. The validity of positive samples for C. auris was assessed by sequencing. RESULTS: Of the 189 pan-fungal positive PCRs, 78 and 39 specimens contained Aspergillus spp. and Candida spp., respectively. Furthermore, 65 specimens showed simultaneous positive bands in both Candida and Aspergillus species-specific multiplex PCR including five samples/patients with positive result for C. auris (5/189; 2.6%). Four out of five cases with C. auris species-specific PCR were reconfirmed by sequencing, while none were positive for C. auris in culture. CONCLUSION: Unfortunately, due to high treatment failure rates of antifungal classes against C. auris species, rapid and accurate identification of patients colonised with C. auris is critical to overcome the challenge of preventing transmission. This PCR assay can be successfully applied for rapid and accurate detection of C. auris directly in patient samples and is able to differentiate C. auris from closely related Candida species.


Subject(s)
Otomycosis , Humans , Otomycosis/diagnosis , Otomycosis/drug therapy , Otomycosis/microbiology , Candida auris , Multiplex Polymerase Chain Reaction , Iran/epidemiology , Candida/genetics , Aspergillus/genetics , Antifungal Agents/therapeutic use
2.
Niger Postgrad Med J ; 30(2): 132-136, 2023.
Article in English | MEDLINE | ID: mdl-37148115

ABSTRACT

Introduction: Otomycosis is a global disease, common in the world's tropical and subtropical regions. The diagnosis is clinical, but mycological examination is required for its confirmation. There is a paucity of published data on otomycosis particularly the aetiologic agents in Nigeria. This study aims to fill in this gap by assessing the clinical presentations, risk factors and aetiologic agents of otomycosis in our setting. Methods: This was a prospective study of 126 clinically diagnosed patients and 30 controls. Mycological analysis of debris and swab samples from their external auditory canal was carried out. Results: One hundred and twenty-six patients were recruited, with 162 ear samples collected. There was mycological confirmation of otomycosis in 100 (79.4%) patients (subjects) and 127 (78.4%) specimens. The subjects' age range was 1-80 years, 30.89 ± 21.15 mean age, and 29-year median age. The peak prevalent age of 1-10 years was statistically significant, P = 0.022. The common symptoms in the subjects were itching 86 (86%), ear blockage 84 (84%) and otalgia 73 (73%). Regular ear cleaning 67 (67.0%) was the most common risk factor. Noted aetiologic agents were Aspergillus species 81 (63.8%), Candida species 42 (33.1%) and Yeast 4 (3.1%). Aspergillus flavus (40/127; 31.5%) was the most common fungus isolated. Unilateral otomycosis 73 (73%) was more common than bilateral otomycosis 27 (27%). Conclusion: Otomycosis is common in all ages, and is a commonly unilateral disease. Regular ear cleaning is the most common risk factor. A. flavus was the most common aetiologic agent in this study.


Subject(s)
Otomycosis , Humans , Infant , Child, Preschool , Child , Adolescent , Young Adult , Adult , Middle Aged , Aged , Aged, 80 and over , Otomycosis/epidemiology , Otomycosis/diagnosis , Otomycosis/microbiology , Nigeria/epidemiology , Prospective Studies , Candida , Risk Factors
3.
Pol Merkur Lekarski ; 51(1): 42-47, 2023.
Article in English | MEDLINE | ID: mdl-36960899

ABSTRACT

OBJECTIVE: Aim: To study the species composition of microorganisms isolated from patients with otomycosis, and to control the sensitivity of isolated microorganisms to the most commonly used antifungal drugs. PATIENTS AND METHODS: Materials and methods: The main group of study was 132 patients with a preliminary diagnosis of Otomycosis was carried out in the period 2020-2022.To study the sensitivity of isolated microorganisms to antifungal drugs, the Himedia paper disk method (India) was used. RESULTS: Results: Analysis of studies showed that among 132 patients, fungal infection was found in 101 patients (76%), the cultural method - in 31 patients (23.5%); of them women - 56 (42.4%), men - 60 (45.5%) aged 16 to 76; children - 16 (12.1%) aged 6 to 12 years. However, among all patients (n = 132) with otomycosis, fungal lesions of the outer ear prevail, which were detected in 85 (64.4%) patients, that is, fungal otitis was detected in 47 (35.6%). CONCLUSION: Conclusions: The general structure of the species spectrum of etiologically significant pathogens of otomycosis: Candida spp. (78.0%) of the total spectrum of isolates. The sensitivity of isolated micromycetes to antifungal drugs varied in different fungal species and in different antifungal drugs.


Subject(s)
Aspergillosis , Mycoses , Otomycosis , Male , Child , Humans , Female , Antifungal Agents/pharmacology , Antifungal Agents/therapeutic use , Otomycosis/drug therapy , Otomycosis/diagnosis , Otomycosis/microbiology , Aspergillosis/drug therapy , Aspergillosis/microbiology , Mycoses/drug therapy
4.
Future Microbiol ; 17: 1437-1443, 2022 12.
Article in English | MEDLINE | ID: mdl-36382573

ABSTRACT

Two cases of otomycosis have been reported in patients undergoing tympanomastoidectomy. The first one had chronic otitis media, hypertrophic concha and nasal septum deviation, tympanic perforation and otorrhea. The second had otalgia, pruritus, chronic otitis media and cholesteatoma. Direct examination showed mycelial septate filaments with a branch at an angle close to 45°, later identified as Aspergillus sydowii by sequencing the BenA and CaM genes. Susceptibility testing showed low MIC of amphotericin B, itraconazole, ketoconazole and ciclopirox olamine. In both cases, ketoconazole was instituted for 10 days. Otomycosis is a challenge as it is primarily recurrent in patients undergoing surgery. The clinical implication, the identification of the emerging pathogen and the determination of MIC were necessary for the knowledge of the epidemiological profile and establishment of the treatment.


Aspergillus are fungi that can cause ear disease. In severe infections, these fungi can be present for long periods inside the ear, and commonly belong to the species Aspergillus section Nigri and Aspergillus flavus. In this work, we present two cases of ear infections by a different species, Aspergillus sydowii. Patients had obstructed nasal cavities, crooked internal separation of the nose and complaints of secretion in the ear. The efficient diagnosis allowed a treatment that resulted in the death of the fungus and the cure of the patient.


Subject(s)
Otomycosis , Humans , Otomycosis/diagnosis , Otomycosis/drug therapy , Ketoconazole/therapeutic use , Aspergillus/genetics , Itraconazole/therapeutic use , Antifungal Agents/pharmacology , Antifungal Agents/therapeutic use
5.
Pan Afr Med J ; 42: 306, 2022.
Article in English | MEDLINE | ID: mdl-36425541

ABSTRACT

Fungal necrotizing external otitis (NEO) is a rare disease. It is an aggressive and potentially fatal infection. The most commonly reported pathogen is Candida. We aim through this study to share our experience in the management of fungal necrotizing external otitis and discuss its diagnosis tools, anti-fungal treatment choice, and outcomes. We included fifteen patients with diagnosis criteria of fungal NEO; clinical features of NEO with positive culture swabs and/or positive serologic test to a fungal pathogen. The mean age was of 70 years with a prevalence of males. The main symptoms were otalgia (n=15) and otorrhea (n=7). Facial palsy was observed in four cases. Fungal pathogens were Candida(n=10) and Aspergillus (n=5). Complications were observed in eight cases: extension to the temporo-mandibular (n=4), abscess in the retropharyngeal space (n=2), abscess in the parapharyngeal space (n=1) and thrombophlebitis of the internal jugular vein (n=1). Six patients were treated with fluconazole, eight with voriconazole, and one patient with itraconazole. After a mean duration of 52 days of antifungal therapy, fourteen patients have been cured with normalization of the ear symptoms, biological, and imaging features. One patient died of septic shock. No recurrence of the disease was observed after a follow-up of 12 months in all cases.


Subject(s)
Otitis Externa , Otomycosis , Male , Humans , Aged , Female , Otitis Externa/diagnosis , Otitis Externa/drug therapy , Otitis Externa/microbiology , Antifungal Agents/therapeutic use , Abscess/drug therapy , Otomycosis/diagnosis , Otomycosis/drug therapy , Voriconazole/therapeutic use , Candida
6.
Mycoses ; 65(4): 490-495, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35080057

ABSTRACT

BACKGROUND: We evaluated the recovery of fungal pathogens from clinical external ear samples from patients with otitis externa (OE) using the UK national Standard Microbiology Investigations of ear infection (SMI B1). METHOD: The UK SMI B1 protocol including a single Sabouraud dextrose agar with chloramphenicol (SABC) incubated at 37°C for 48 hours was compared with a standard fungal-specific culture method using two SABC agar plates incubated at 28 and 37°C for 2 weeks with an extra Candida chromogenic agar incubated at 37°C for 5 days. This real-life evaluation was undertaken on ear samples from patients with OE from January 2020 to December 2020. RESULTS: Altogether, 304 individual patient ear swabs were prospectively examined. The positivity rate of UK standard was 14% (42/304) versus 26% (79/304) for the fungal-specific protocol (p < .05). The standard protocol identified seven compared with 17 species using the fungal-specific protocol. A total of 93 fungal isolates were recovered; nine different yeasts and eight filamentous fungal species. Candida parapsilosis (38/304; 13%), C. albicans (10/304; 3%) and C. orthopsilosis (6/304; 2%) were common yeast species. Aspergillus niger complex (16/304; 5%) was the most common mould, followed by A. fumigatus complex (3/304; 1%). Many less common and emerging yeasts and moulds were only isolated from samples cultured using a fungal-specific protocol. CONCLUSION: Our results suggest that the UK SMI B1 media and procedures are inadequate to detect all fungal agents causing otomycosis. Fungal-specific culture protocols increase the recovery rate and diversity of fungal pathogens isolated from external ear samples.


Subject(s)
Otitis Externa , Otomycosis , Candida albicans , Clinical Laboratory Techniques , Humans , Otitis Externa/diagnosis , Otomycosis/diagnosis , Otomycosis/microbiology , United Kingdom
7.
J Wound Care ; 30(Sup9a): XIVi-XIViii, 2021 Sep 02.
Article in English | MEDLINE | ID: mdl-34597173

ABSTRACT

Otomycosis is a fungal infection of the external auditory canal caused mainly by the genus Aspergillus. Aspergillus luchuensis, an industrially important fungus, is a member of Aspergillus section Nigri. In this report, we present a case of otomycosis due to Aspergillus luchuensis in a 43-year-old female patient. We performed a partial PCR-sequencing of ß-tubulin and calmodulin genes to identify the isolate to the species level. Further, we determined the in vitro susceptibility of the isolate to nystatin, clotrimazole and itraconazole according to the Clinical & Laboratory Standards Institute (CLSI) M38-A2 protocol. Accordingly, the minimum inhibitory concentrations of clotrimazole, nystatin and itraconazole were 0.25µg/mL, 0.5µg/mL and 1µg/mL, respectively. This is the first report of clinically relevant isolation of Aspergillus luchuensis identified by a molecular technique as a causative agent of otomycosis.


Subject(s)
Otomycosis , Adult , Antifungal Agents/pharmacology , Antifungal Agents/therapeutic use , Aspergillus/genetics , Female , Humans , Microbial Sensitivity Tests , Otomycosis/diagnosis , Otomycosis/drug therapy , Polymerase Chain Reaction
8.
West Afr J Med ; 38(8): 743-748, 2021 08 30.
Article in English | MEDLINE | ID: mdl-34499919

ABSTRACT

BACKGROUND: Candida albicans and non-albicans Candida species are considered as commensal yeasts of many cavities including the external auditory canal (EAC) in healthy individuals. These fungal microorganisms can also act as opportunist pathogens and cause otomycosis. In this study, the patients of clinically suspected otomycosis were specifically investigated mycologically to elucidate the role of Candida albicans and non-albicans Candida species. MATERIAL AND METHODS: A prospective observational study was conducted from July 2016 and June 2017 at the Laboratory of Parasitology and Mycology of the Sourô SANOU University Hospital in Bobo-Dioulasso, Burkina Faso. Identification of Candida isolates was using conventional phenotypic methods. Antifungal susceptibility tests were carried out by disk diffusion method in accordance with CLSI standard document M44-A for yeasts. RESULTS: Out of 160 patients with clinically diagnosed otomycosis, 77(48.1%) were investigated positive for Candida species. Candida albicans (61%) was the most isolated species and non-albicans Candida species accounted for 39% of the isolates, with mainly Candida spp (22.1%), Candida krusei (10.4%), Candida dubliniensis (5.2%) and Candida glabrata (1.3%). Nystatin showed the highest efficacy (95.9%), followed by ketoconazole (90.4%), clotrimazole (83.6%), miconazole (72.6%) and amphotericin B (63.0%). CONCLUSION: Otomycosis due to Candida species should be especially considered, since they have a wide number of potential virulence factors that cause fungal infections. Also, antifungal susceptibility testing should be performed in order to select the appropriate antifungal therapy.


CONTEXTE: Candida albicans et les espèces de Candida non albicans sont considérées comme des levures commensales de nombreuses cavités, y compris le conduit auditif externe (CAE) chez les individus sains. Ces micro-organismes fongiques peuvent également agir comme des agents pathogènes opportunistes et provoquer une otomycose. Dans cette étude, les patients cliniquement suspectés d'otomycose ont été spécifiquement étudiés mycologiquement pour élucider le rôle des espèces de Candida albicans et non albicans Candida. MATÉRIEL ET METHODS: Une étude observationnelle prospective a été menée de juillet 2016 à juin 2017 au Laboratoire de Parasitologie et Mycologie du CHU Sourô SANOU à BoboDioulasso, Burkina Faso. L'identification des isolats de Candida utilisait des méthodes phénotypiques conventionnelles. Des tests de sensibilité aux antifongiques ont été réalisés par la méthode de diffusion sur disque selon le document standard CLSI M44-A pour les levures. RÉSULTATS: Sur 160 patients atteints d'otomycose cliniquement diagnostiquée, 77 (48,1 %) ont été testés positifs pour les espèces de Candida. Candida albicans (61 %) était l'espèce la plus isolée et les espèces non albicans Candida représentaient 39 % des isolats, avec principalement Candida spp (22,1 %), Candida krusei (10,4 %), Candida dubliniensis (5,2 %) et Candida glabrata (1,3%). La nystatine a montré l'efficacité la plus élevée (95,9 %), suivie du kétoconazole (90,4 %), du clotrimazole (83,6 %), du miconazole (72,6 %) et de l'amphotéricine B (63,0 %). CONCLUSION: L'otomycose due aux espèces de Candida doit être particulièrement considérée, car elles ont un grand nombre de facteurs de virulence potentiels qui provoquent des infections fongiques. En outre, des tests de sensibilité aux antifongiques doivent être effectués afin de sélectionner le traitement antifongique approprié. Mots-clés: Candida albicans; Otomycoses; routine; sensibilité antifongique; Burkina Faso.


Subject(s)
Candida albicans , Otomycosis , Antifungal Agents/pharmacology , Antifungal Agents/therapeutic use , Candida , Drug Resistance, Fungal , Fluconazole , Humans , Microbial Sensitivity Tests , Otomycosis/diagnosis , Otomycosis/drug therapy , Pichia
9.
Am J Otolaryngol ; 42(4): 102961, 2021.
Article in English | MEDLINE | ID: mdl-33621764

ABSTRACT

PURPOSE: Various agents with various antifungal properties are widely used for otomycosis eradication. However, there is still no consensus on the most effective agent. Therefore, the present study aims to investigate the efficacy of topical 1% isoconazole nitrate cream in the treatment of otomycosis. METHODS: This prospective study included 43 patients who were applied to our outpatient clinic with complaints of ear pain, itching, aural fullness, and hypoacusis, and were diagnosed with unilateral otomycosis. After aspiration and cleaning, the external ear canal was filled with 1% isoconazole nitrate cream using an iv cannula and insulin syringe. Control examinations were performed on the 5th, 10th, 15th, and 20th days. In the follow-up examinations, patients were asked about how many days after the cream administration the pain and itching completely relief and the answers were recorded. RESULTS: In the first control examination of 23 (92%) of 25 patients with pain, it was observed that the pain and otoendoscopic examination findings completely recovered. In the second control, it was found that both pain and otoendoscopic examination findings completely recovered in the remaining 2 patients (25 patients, 100%). 35 patients complained of itching and it was observed that itching and otoendoscopic examination findings completely recovered in 26 patients (75%) in the first control, 5 more patients (31 patients, 88.6%) in the second control, and 2 more patients (33 patients, 94.3%) in the third control examination. CONCLUSION: Isoconazole nitrate cream appears to be an effective and easily applicable agent for the treatment of otomycosis.


Subject(s)
Antifungal Agents/administration & dosage , Miconazole/analogs & derivatives , Otomycosis/drug therapy , Administration, Topical , Adult , Aged , Endoscopy , Female , Follow-Up Studies , Humans , Male , Memory, Episodic , Miconazole/administration & dosage , Middle Aged , Ointments , Otomycosis/diagnosis , Otomycosis/pathology , Treatment Outcome , Young Adult
10.
J Mycol Med ; 31(2): 101115, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33516991

ABSTRACT

This review sets out to highlighted knowledge gaps regarding the epidemiological, diagnostic (clinical and laboratory) and therapeutic aspects of otomycosis in Africa. A computerized literature search for otomycosis related articles were performed using MEDLINE. The search encompassed articles published in early January 1980 to May 2019 yielded 220 articles. Electronic search on PubMed was performed with the specific keywords. This review shows the higher prevalence rates of otomycosis in Africa. These prevalences varies from one country to the other and also from one population to another within the same country. The main symptoms are otalgia, otorrhea, hearing loss, aural fullness, pruritus, and tinnitus. Otomycosis is due to several predisposing factors, however, use of topical antibiotic/steroid eardrops, trauma to the external ear canal or instrumentation of the ear, being exposed to hot humid atmospheres, and close contact with water are the common risk factors. Aspergillus species are the most commonly identified organisms compared with Candida species. Worldwide, A. niger and C. albicans are the most commonly described agents of otomycosis in Africa. The Laboratory diagnosis of otomycosis is usually confirmed by mycologic tests relied on a set of evidences. Further conventional methods such as Chromagar Candida System, latex agglutination test, Biochemical tests (Api 20C AuxTM and auxanogram), phenotypical tests (Germ-tube and chlamydosporulation), and rRNA gene sequencing (PCR) are performed to improve diagnosis and the management of the disease. Adequate treatment of otomycosis includes microscopic suction clearance of fungal mass, discontinuation of topical antibiotics and treatment with antifungal eardrops for three weeks.


Subject(s)
Antifungal Agents/therapeutic use , Fungi/isolation & purification , Otomycosis/diagnosis , Otomycosis/drug therapy , Africa/epidemiology , Antifungal Agents/pharmacology , Aspergillus/drug effects , Aspergillus/genetics , Candida/drug effects , Candida/genetics , Fungi/classification , Fungi/drug effects , Fungi/genetics , Humans , Otomycosis/epidemiology , Otomycosis/microbiology , Prevalence
12.
J Laryngol Otol ; 134(7): 592-596, 2020 Jul.
Article in English | MEDLINE | ID: mdl-32713390

ABSTRACT

BACKGROUND: Fungal otitis externa is prevalent in tropical and sub-tropical climates; however, over the past two decades, there has been a reported increase in the prevalence of otomycosis in paediatric patients from more temperate climates. This study aimed to review the children diagnosed with otomycosis at the University Hospital Limerick with reference to frequency, causative organism, predisposing factors and management. METHODS: A retrospective review was conducted of paediatric patients from 2001 to 2015. Patients with positive fungal ear swabs and a diagnosis of otomycosis were identified. RESULTS: Ninety-three patients were positive for candida (mean age, 5.8 years), 10 patients were positive for aspergillus (mean age, 9.1 years) and 1 patient had mixed fungal infection containing both fungi. There was a positive correlation between a diagnosis of otomycosis and prior treatment with topical fluoroquinolones (r = 0.8; p < 0.01). CONCLUSION: The incidence of otomycosis has been increasing since 2001, which correlates with an increase in the use of topical fluoroquinolones. Previous studies identify aspergillus as the commonest causative fungi; however, this study found that candida was the commonest isolated fungi in the paediatric population.


Subject(s)
Otomycosis/epidemiology , Antifungal Agents/therapeutic use , Aspergillosis/diagnosis , Aspergillosis/drug therapy , Aspergillosis/epidemiology , Aspergillosis/microbiology , Candidiasis/diagnosis , Candidiasis/drug therapy , Candidiasis/epidemiology , Candidiasis/microbiology , Child , Child, Preschool , Coinfection/diagnosis , Coinfection/drug therapy , Coinfection/epidemiology , Coinfection/microbiology , Female , Humans , Incidence , Ireland/epidemiology , Male , Otomycosis/diagnosis , Otomycosis/drug therapy , Otomycosis/microbiology , Retrospective Studies
13.
Mycoses ; 62(11): 1064-1068, 2019 Nov.
Article in English | MEDLINE | ID: mdl-31368588

ABSTRACT

To analyse and discuss the clinical features and pathogenic characteristics, diagnosis and treatment of patients with otomycosis in southern China. Two hundred fifty-six patients from southern China diagnosed with otomycosis were randomly separated into two groups: the drug filling group and drug smearing group. Patients in the drug filling group were first examined and then had the pathogenic secretions in their external auditory canals cleared by otoendoscopy. Then, the local antifungal cream triamcinolone acetonide clotrimazole was injected into the external auditory canal. The same treatment was undertaken 1 week later and repeated once or twice more. Patients in the drug smearing group were also treated by otoendoscopy. Then, they were told to smear their external auditory canals once per day with the antifungal cream. All cases were followed for more than 6 months after the 3- to 4-week treatment. The main symptoms and otoendoscopic examination were used to evaluate the prognosis. Aspergillus was the commonest fungus. The cure rate was 93% in the drug filling group and 81% in the drug smearing group. Otomycosis is very common in southern China, but it lacks characteristic features in its early stages. Once diagnosed, the local lesions in the external auditory canal should be cleared thoroughly using otoendoscopy, and then, the local antifungal cream is injected into external auditory canal. The cure rate can be significantly improved with the foregoing treatment.


Subject(s)
Antifungal Agents/therapeutic use , Ear Canal/microbiology , Otomycosis/diagnosis , Otomycosis/drug therapy , Adolescent , Adult , Aged , Aspergillosis/complications , Aspergillosis/diagnosis , Aspergillus/drug effects , Child , Child, Preschool , China , Female , Humans , Male , Middle Aged , Young Adult
14.
Emerg Infect Dis ; 25(9): 1780-1781, 2019 09.
Article in English | MEDLINE | ID: mdl-31310230

ABSTRACT

Four major clades of Candida auris have been described, and all infections have clustered in these 4 clades. We identified an isolate representative of a potential fifth clade, separated from the other clades by >200,000 single-nucleotide polymorphisms, in a patient in Iran who had never traveled outside the country.


Subject(s)
Candida/isolation & purification , Candidiasis/diagnosis , Otomycosis/diagnosis , Adolescent , Candida/genetics , Candidiasis/drug therapy , Candidiasis/microbiology , Female , Humans , Iran , Otomycosis/drug therapy , Otomycosis/microbiology , Travel , Whole Genome Sequencing
15.
J Med Microbiol ; 68(6): 918-923, 2019 Jun.
Article in English | MEDLINE | ID: mdl-31063125

ABSTRACT

PURPOSE: To elucidate the clinical and microbial epidemiology of otomycosis in Isfahan, Iran. METHODOLOGY: From January 2016 to January 2017 all patients clinically suspected of otomycosis at Al-Zahra Hospital, Isfahan, Iran were recruited. Specimens were taken using sterile swabs by an otorhinolaryngologist and subjected to culture and microscopy using potassium hydroxide and Giemsa stain. Isolated fungi were identified based on morphological and molecular characteristics. RESULTS: Otomycosis was confirmed in 97/120 patients (80.8 %). Females (72.2 %) and patients aged 30-39 years (33 %) were more commonly affected than others. Manipulation of ear canal (62.9 %) was the most common predisposing factor. Pruritus was observed in 84.54  % of the patients followed by hearing impairment (81.4 %), and most episodes were detected over the summer (50.5 %). Culture was positive for 81 (83.5  %) of confirmed cases and molds were the most prevalent causative agents (n=51, 63 %) followed by yeasts (n=19, 23.4 %) and yeast/mold mixes (n=11, 13.6 %). For the 16 remaining patients, no growth was seen in culture despite a positive result on direct examination. In total, 92 isolates (63 molds and 29 yeasts) were recovered in culture. Application of molecular methods showed 18 fungal species and the vast majority of them belonged to Aspergillus (n=53, 57.6 %) and Candida genus. Among the species involved, Candida parapsilosis (n=22, 22.7 %) and Aspergillus tubingensis (n=15, 15.5 %) were the most encountered species. CONCLUSION: Outcomes from this study showed a different picture of prevalence, where C. parapsilosis and A. tubingensis but not Aspergillus niger were the most species encountered from patients suffering from otomycosis.


Subject(s)
Aspergillus/isolation & purification , Candida/isolation & purification , Otomycosis/diagnosis , Adult , Aspergillus/genetics , Biodiversity , Candida/genetics , Candida parapsilosis/genetics , Candida parapsilosis/isolation & purification , Cross-Sectional Studies , Female , Humans , Iran/epidemiology , Male , Molecular Epidemiology , Otomycosis/epidemiology , Otomycosis/microbiology , Prevalence
16.
Mycoses ; 62(2): 101-105, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30585653

ABSTRACT

Candida auris is a multidrug-resistant yeast emerging in immunocompromised and in otherwise healthy individuals. Due to difficulties in microbiological identification of C. auris because of the lack of available laboratory technology in developing countries, the number of patients affected is most likely underestimated. We report the first case of C. auris otitis which now adds Iran as the fifth country around the Persian Gulf, in addition to Kuwait, Oman, United Arab Emirates and Saudi Arabia. Candida auris is an unknown pathogen in routine laboratories in Iran because most Candida isolates are probably misdiagnosed. Otomycosis seems to be a different clinical presentation of C. auris mainly involving isolates from the East-Asian clade. We compared the mycological and clinical details of the Iranian patient with other cases of otitis reported since the last review of C. auris otomycosis in 2017.


Subject(s)
Candida/isolation & purification , Candidiasis/diagnosis , Candidiasis/pathology , Otomycosis/diagnosis , Otomycosis/pathology , Candida/classification , Candida/genetics , Candidiasis/microbiology , Humans , Iran , Otomycosis/microbiology
17.
Vestn Otorinolaringol ; 83(1): 48-51, 2018.
Article in Russian | MEDLINE | ID: mdl-29488497

ABSTRACT

This article deals with the modern approaches to the diagnostics and treatment of fungal ear infection depending on the localization of the inflammatory process and the species of the causative fungal agent with special reference to the factors underlying the development of otomycosis under the present-day conditions based on the results of the analysis of the studies carried out during the period from 2010 to 2014. The materials of the examination of 2152 patients who applied for the medical care to various clinical departments of the Institute and were found to present with chronic inflammatory ear pathology were available for the analysis. Fungal lesions were diagnosed in 495 (23%) patients with this condition. Fungal lesions of the external ear were the predominant form of pathology; they were documented in 331 (67%) patients. Fungal otitis media was diagnosed in 85 (17%) patients and fungal lesions of the postoperative cavity in 79 (16%) patients suffering from otomycosis. 65% of the patients presenting with external fungal otitis, 20% of those with fungal otitis media, and 95% of the patients with inflammation of the postoperative cavity were infected with mold fungi dominated by the genus Aspergillus spp. 79 (16%) patients suffering from otomycosis. In 35% of the patients presenting with fungal external otitis, 80% of those with fungal otitis media, and 5% of the patients with inflammation of the postoperative cavity of the middle ear, the causative agents of the disease were the fungi Candida spp. The authors describe the modern schemes for the treatment of otomycosis elaborated at the L.I. Sverzhevskiy Research Institute of Clinical Otorhinolaryngology.


Subject(s)
Aspergillus/isolation & purification , Candida/isolation & purification , Fluconazole/administration & dosage , Otomycosis , Postoperative Complications , Adolescent , Aged, 80 and over , Antifungal Agents/administration & dosage , Diagnostic Techniques, Otological , Female , Humans , Male , Microbiological Techniques , Middle Aged , Otologic Surgical Procedures/adverse effects , Otomycosis/diagnosis , Otomycosis/drug therapy , Otomycosis/microbiology , Otomycosis/physiopathology , Patient Care Management , Postoperative Complications/diagnosis , Postoperative Complications/drug therapy , Postoperative Complications/microbiology
19.
Dan Med J ; 63(5)2016 May.
Article in English | MEDLINE | ID: mdl-27127015

ABSTRACT

INTRODUCTION: Otomycosis is a fungal infection of the external ear canal that can involve the middle ear in case of tympanic membrane perforation and also extend to the auricle. Fungi cause 7-15% of external otitis. Diagnosing otomycosis is often based entirely on non-specific clinical signs and symptoms. A multitude of antifungal drugs are available. Some are ototoxic in animals, a few are proven safe, but the ototoxicity of many drugs remains unknown. The aim of this study was to describe how otomycosis was diagnosed and treated by private ear, nose, and throat (ENT) consultants in Denmark and to investigate if the patient's immune status and the presence of a tympanic membrane perforation affected the chosen treatment modality. METHOD: A questionnaire on the treatment of otomycosis was sent to 147 private ENT consultants. RESULTS: In total, 103 (70%) responded. 95% performed intensive aural cleaning using an otomicroscope. The initial diagnosis was based on symptoms as only 20% required to see fungal hypha. 42% sent material for culture and sensitivity (C + S) before starting treatment and 92% sent for C + S if treatment failed. 89% used a variety of topical antifungal drugs as the first line of medical treatment. Antiseptics were used in 5%. The presence of a tympanic membrane perforation did not alter the treatment modality. Only 13% treated immunocompromised patients differently. CONCLUSION: The initial diagnosis was based on non-specific symptoms and there were large discrepancies in the chosen antifungal treatment. Topical antifungal drugs were preferred. Additional research is needed. FUNDING: Department of Otorhinolaryngolgy and Maxillofacial Surgery, Zealand University Hospital, Køge, Denmark. The Danish Association of Research-interested Otorhinolaryngology Consultants: Kim Werther, Peter Tingsgaard, Mads Stougaard, Steen Telmer, Henrik Møller, Liviu Guldfred. TRIAL REGISTRATION: No trial registration was necessary as the questionnaire was anonymous and contained no patient data.


Subject(s)
Otolaryngologists , Otomycosis/therapy , Practice Patterns, Physicians' , Anti-Infective Agents, Local/therapeutic use , Antifungal Agents/therapeutic use , Denmark , Humans , Immunocompromised Host , Otomycosis/diagnosis , Professional Practice Gaps , Surveys and Questionnaires , Tympanic Membrane Perforation/diagnosis , Tympanic Membrane Perforation/therapy
20.
Pan Afr Med J ; 24: 322, 2016.
Article in French | MEDLINE | ID: mdl-28154677

ABSTRACT

Malignant otitis externa is also referred to as skull base osteomyelitis. Pseudomonas aeruginosa is the most common offending pathogen. However, fungal origin is not uncommon. 80-year-old patient having persistent left earache since two months despite adequate treatment. Otologic examination showed signs of inflammation in the auricular pavilion, ear canal stenosis with granulomas and purulent otorrhea. CT scan showed a filled otomastoid, extensive inflammatory process affecting the pre-auricular and retro-auricular tissues and lysis of the tympanic bulla. Given the lack of improvement, mycological examination was performed which revealed the presence of Candida Albicans. Cases of malignant otitis externa caused by Candida albicans are rarely reported. Fungal origin should be suspected in patients who have negative bacteriological samples and no improvement despite adequate antibiotic treatment. It should be confirmed by sometimes multiple mycological samples. Malignant otitis externa caused by Candida albicans is a rare potentially mortal infection.


Subject(s)
Candida albicans/isolation & purification , Candidiasis/diagnosis , Otitis Externa/diagnosis , Aged, 80 and over , Candidiasis/microbiology , Female , Humans , Otitis Externa/microbiology , Otomycosis/diagnosis , Otomycosis/microbiology
SELECTION OF CITATIONS
SEARCH DETAIL
...