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Peng D, Li A, Kong M, Mao C, Sun Y, Shen M. Pathogenic Aspergillus Strains Identification and Antifungal Susceptibility Analysis of 452 Cases with Otomycosis in Jingzhou, China. Mycopathologia 2024; 189:30. [PMID: 38578519 DOI: 10.1007/s11046-024-00836-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/14/2024] [Indexed: 04/06/2024]
Abstract
OBJECTIVE To study the distribution of pathogenic Aspergillus strains of otomycosis in central China and the identification of their antifungal sensitivity. METHODS We collected external ear canal secretions clinically diagnosed as otomycosis from April 2020 to January 2023 from the Department of Otolaryngology-Head and Neck Surgery in central China. The pathogenic Aspergillus strains were identified through morphological examination and sequencing. The antifungal sensitivity was performed using the broth microdilution method described in the Clinical Laboratory Standard Institute document M38-A3. RESULTS In the 452 clinical strains isolated from the external ear canal, 284 were identified as Aspergillus terreus (62.83%), 92 as Aspergillus flavus (20.35%), 55 as Aspergillus niger (12.17%). In antifungal susceptibility tests the MIC of Aspergillus strains to bifonazole and clotrimazole was high,all the MIC90 is > 16 ug/mL. However, most Aspergillus isolates show moderate greatly against terbinafine, itraconazole and voriconazole. CONCLUSION A. terreus is the most common pathogenic Aspergillus strain in otomycosis in central China. The selected topical antifungal drugs were bifonazole and clotrimazole; the drug resistance rate was approximately 30%. If the infection is persistent and requires systemic treatment, terbinafine and itraconazole can be used. The resistance of Aspergillus in otomycosis to voriconazole should be screened to avoid the systemic spread of infection in immunocompromised people and poor compliance with treatment. However, the pan-azole-resistant strain of Aspergillus should be monitored, particularly in high-risk patients with otomycosis.
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Affiliation(s)
- Dan Peng
- Department of Otolaryngology Head and Neck Surgery, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China
| | - Aimin Li
- Department of Pediatrics, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China
| | - Mengdan Kong
- Department of Otolaryngology Head and Neck Surgery, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China
| | - Chenggang Mao
- Department of Otolaryngology Head and Neck Surgery, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China.
| | - Yi Sun
- Department of Dermatology, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China
| | - Min Shen
- Department of Otolaryngology Head and Neck Surgery, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China
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Sogebi OA, Oyewole EA, Osinupebi OA. Clinicopathological study of otomycosis in a tertiary hospital in South-west Nigeria. Afr Health Sci 2024; 24:69-75. [PMID: 38962337 PMCID: PMC11217849 DOI: 10.4314/ahs.v24i1.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024] Open
Abstract
Background Otomycosis is common in environments with hot, humid weather, and it may be challenging to manage. Objectives To profile common clinical presentations, the pathogenic fungi, the treatment modalities with responses, and explore clinical factors associated with having positive fungal culture in Otomycosis. Methods Retrospective review of patients with Otomycosis. Demographic and clinical parameters, otoscopic findings and mycological study results were recorded. The treatment modalities used and treatment response were summarized. Comparative statistical analyses of associated factors to positive fungal culture were performed with Chi square test, and Student's t-test, using SPSS version 22.0. Results Total of 71 patients with M: F=1:1.8, mean age 38.5±19.8 years. Average duration of symptoms was 5.4 ±4.6 weeks; common presenting complaint was itchy ear (33.8%). Majority of patients (85.9%) had unilateral ear involvement, 50.0% applied ototopic medications before presentation, 8.5% had multiple co-morbidities. 20 patients had positive fungal culture results; common fungal isolate was Aspergillus niger 9 (45.0%).Clinical factors associated with positive culture of fungus were age, non-previous use of ototopic drugs, and presence of co-morbidity. The most common treatment was local ear debridement and use of topical antifungal creams. Majority (91.5%) of the patients responded with resolution of fungal infection. Complications rate was 8.4%. Conclusions Otomycosis commonly present with itchy ears, the pathogenic fungi commonly being Aspergillus species. The factors associated with positive fungal culture were age, non-usage of ototopic agents and presence of co-morbidity. Treatment modality used was local debridement and topical antifungal agents, which produced favourable response in most patients.
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Affiliation(s)
- Olusola A Sogebi
- Department of Surgery, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Sagamu, Nigeria
| | - Emmanuel A Oyewole
- Department of Surgery, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Sagamu, Nigeria
| | - Olubunmi A Osinupebi
- Department of Medical Microbiology and Parasitology, Olabisi Onabanjo University Teaching Hospital, Sagamu, Nigeria
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Bojanović M, Stalević M, Arsić-Arsenijević V, Ignjatović A, Ranđelović M, Golubović M, Živković-Marinkov E, Koraćević G, Stamenković B, Otašević S. Etiology, Predisposing Factors, Clinical Features and Diagnostic Procedure of Otomycosis: A Literature Review. J Fungi (Basel) 2023; 9:662. [PMID: 37367598 DOI: 10.3390/jof9060662] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023] Open
Abstract
Otomycosis (OM) is a superficial fungal infection of the external auditory canal (EAC) with a worldwide prevalence ranging from 9% to 30%. Commonly, otomycoses are caused by Aspergillus (A.) niger complex and Candida spp. Other causative agents are yeasts of the genera Cryptococcus spp., Rhodotorula spp., Geotrichum candidum, dermatophytes (Trichophyton mentagrophytes), and non-dermatophytes molds (Fusarium spp., Penicillium spp., Mucorales fungi). The widest range of different species causing OM are found in the territories of Iran, India, China, Egypt, Mexico, and Brazil. Fungal infection of the EAC varies from mild to severe forms. It can be acute, subacute, or chronic, and is often unilateral, while the bilateral form is more common in immunocompromised patients. From an epidemiological point of view, tropical and subtropical climates are the most significant risk factor for the development of otomycosis. Other predisposing conditions include clothing habits, EAC hygiene practices, long-term antibiotic therapy, diabetes, and immunodeficiency. Since it is often difficult to distinguish otomycosis from an infection of a different origin, laboratory-based evidence, including standard procedures (microscopy and cultivation), is essential for diagnosis. For the treatment of this superficial fungal infection, there are no official therapeutic guidelines and protocols. However, many antifungals for local application, such as polyene, imidazoles, and allylamines, can be applied, as well as systemic antimycotics (triazoles) in severe forms of infection.
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Affiliation(s)
- Mila Bojanović
- Medical Faculty, University of Niš, 18000 Niš, Serbia
- University Clinical Center Niš, 18000 Niš, Serbia
| | - Marko Stalević
- Medical Faculty, University of Priština in Kosovska Mitrovica, 38220 Kosovska Mitrovica, Serbia
| | | | - Aleksandra Ignjatović
- Medical Faculty, University of Niš, 18000 Niš, Serbia
- Public Health Institute Niš, 18000 Niš, Serbia
| | - Marina Ranđelović
- Medical Faculty, University of Niš, 18000 Niš, Serbia
- Public Health Institute Niš, 18000 Niš, Serbia
| | | | - Emilija Živković-Marinkov
- Medical Faculty, University of Niš, 18000 Niš, Serbia
- University Clinical Center Niš, 18000 Niš, Serbia
| | - Goran Koraćević
- Medical Faculty, University of Niš, 18000 Niš, Serbia
- University Clinical Center Niš, 18000 Niš, Serbia
| | - Bojana Stamenković
- Medical Faculty, University of Niš, 18000 Niš, Serbia
- Institute For Treatment and Rehabilitation "Niška Banja", 18205 Niš, Serbia
| | - Suzana Otašević
- Medical Faculty, University of Niš, 18000 Niš, Serbia
- Public Health Institute Niš, 18000 Niš, Serbia
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Shangali A, Kamori D, Massawe W, Masoud S, Kibwana U, Mwingwa AG, Manisha A, Mwandigha AM, Mirambo MM, Mshana SE, Manyahi J, Majigo M. Aetiology of ear infection and antimicrobial susceptibility pattern among patients attending otorhinolaryngology clinic at a tertiary hospital in Dar es Salaam, Tanzania: a hospital-based cross-sectional study. BMJ Open 2023; 13:e068359. [PMID: 37012005 PMCID: PMC10083798 DOI: 10.1136/bmjopen-2022-068359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/04/2023] Open
Abstract
OBJECTIVES To determine the aetiological pathogens causing ear infections and their antimicrobial susceptibility patterns among patients with ear complaints at a tertiary hospital in Dar es Salaam. DESIGN Hospital-based cross-sectional study. SETTINGS Otorhinolaryngology clinic at Muhimbili National Hospital, Dar es Salaam, Tanzania. PARTICIPANTS Patients presenting with signs and symptoms of ear infection. MAIN OUTCOME MEASURE Bacteria and fungi isolated from ear swab specimens of patients presenting with signs and symptoms of ear infection; and antimicrobial susceptibility patterns of isolated bacteria. RESULTS Two hundred and fifty-five participants were enrolled, with a median age of 31 years and an IQR of 15-49. Otitis externa was the predominant type of ear infection, accounting for 45.1%. We observed positive bacteria culture in 53.3% of study participants, in which 41% of isolates were obtained from patients with chronic suppurative otitis media. Moreover, Staphylococcus aureus (27.3%) and Pseudomonas aeruginosa (24.2%) were the most frequently isolated bacteria, while Candida spp, 12 (63.8%) and Aspergillus spp, 9 (36.2%) were the only isolated fungi. Furthermore, we report that 93% of isolated Enterobacterales were resistant to amoxicillin/clavulanic acid, and 73% were resistant to ceftazidime. In addition, we detected 34.4% extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-PE) and 44.4% methicillin-resistance S. aureus (MRSA). We also found that 22% of the bacteria isolates were resistant to ciprofloxacin, a primary topical antibiotic used in managing ear infections. CONCLUSIONS The findings from this study reveal that the leading aetiological agent of ear infection is bacteria. Furthermore, our findings show a significant proportion of ESBL-PE and MRSA-causing ear infections. Hence, detecting multidrug-resistant bacteria is crucial to improving ear infection management.
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Affiliation(s)
- Aminiel Shangali
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, United Republic of
- Department of Microbiology and Immunology, Mwanza University, Mwanza, Tanzania, United Republic of
| | - Doreen Kamori
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, United Republic of
| | - Willybroad Massawe
- Department of Otorhinolaryngology, Muhimbili National Hospital, Dar es Salaam, Tanzania, United Republic of
| | - Salim Masoud
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, United Republic of
| | - Upendo Kibwana
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, United Republic of
| | - Anthony G Mwingwa
- Department of Microbiology and Immunology, Kilimanjaro Christian Medical Centre, Moshi, Tanzania, United Republic of
| | - Anselmo Manisha
- Department of Microbiology and Immunology, Mwanza University, Mwanza, Tanzania, United Republic of
| | - Ambele M Mwandigha
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, United Republic of
| | - Mariam M Mirambo
- Department of Microbiology and Immunology, Catholic University of Health and Allied Sciences, Mwanza, Tanzania, United Republic of
| | - Stephen E Mshana
- Department of Microbiology and Immunology, Catholic University of Health and Allied Sciences, Mwanza, Tanzania, United Republic of
| | - Joel Manyahi
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, United Republic of
| | - Mtebe Majigo
- Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, United Republic of
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Gu X, Cheng X, Zhang J, She W. Identification of the Fungal Community in Otomycosis by Internal Transcribed Spacer Sequencing. Front Microbiol 2022; 13:820423. [PMID: 35369424 PMCID: PMC8965282 DOI: 10.3389/fmicb.2022.820423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/26/2022] [Indexed: 11/25/2022] Open
Abstract
We used internal transcribed spacer (ITS) sequencing to identify the fungal community in otomycosis patients and to evaluate the treatment effects of bifonazole. Ten patients who visited the Department of Otolaryngology of Jiangsu Provincial Hospital on Integration of Chinese and Western Medicine from May 2020 to April 2021 were recruited. Otomycosis patients were treated with bifonazole solution once a day for 14 days. Samples collected from the external auditory canal before and after treatment (Pre-treatment, n = 14 ears; Post-treatment, n = 14 ears) were used for microscopic examination, fungal culture, and ITS sequencing. Samples collected from 10 volunteers (Control, n = 20 ears) were used as controls. The symptoms, including ear itching, aural fullness, otalgia, hearing loss, and physical signs were recorded before treatment as well as on the 7th and 14th days after treatment. Aspergillus was identified as a main pathogenic fungus by microscopic examination, fungal culture, and ITS sequencing. At the genus level, Aspergillus was more abundant in the pre-treatment group than the control and post-treatment groups, and Malassezia was more abundant in the control and post-treatment groups than the pre-treatment group. The fungal species richness and diversity reduced significantly in the pre-treatment group compared with the control and post-treatment groups. The effective rate of bifonazole was 64.29% and 100% on the 7th and 14th days after treatment, respectively. In conclusion, the results obtained from morphologic studies and ITS sequencing indicate that Aspergillus is the main pathogenic fungus of otomycosis patients in Nanjing, Jiangsu Province, China. Malassezia is the dominant resident fungi in healthy individuals. ITS sequencing provides comprehensive information about fungal community in otomycosis and is helpful in evaluating the efficacy of antifungal agents.
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Affiliation(s)
- Xiaona Gu
- Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Department of Otolaryngology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiangrong Cheng
- Department of Otolaryngology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jinhua Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wandong She
- Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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A Chronic Autochthonous Fifth Clade Case of Candida auris Otomycosis in Iran. Mycopathologia 2021; 187:121-127. [PMID: 34855102 DOI: 10.1007/s11046-021-00605-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/30/2021] [Indexed: 10/19/2022]
Abstract
Candida auris, a multidrug-resistant nosocomial pathogen, has emerged globally with high morbidity and mortality among immunocompromised individuals and COVID19 hospitalized patients. Five major clades of C. auris have been previously described. The fifth clade is exclusively found in Iran where C. auris isolates are genetically distinct from other clades by > 200,000 single-nucleotide polymorphisms. The origin of C. auris remains unclear, and limited clinical data are available at present regarding clade V infection or colonization. Herein, another case of otomycosis in Iran caused by an isolate of C. auris belonging to the fifth clade is reported. Genotyping revealed that the obtained C. auris isolate from Isfahan clustered with earlier clade V isolates from Babol, cities around 600 km separated, which indicates that C. auris clade V is established in Iran. C. auris is thought to exist more commonly in Iran, given that limited diagnostic capacity in the country has probably curbed the identification of more C. auris cases. Therefore, surveillance of the environment, patients and healthcare facilities in different geographical regions in Iran is urgently required.
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Invasive Aspergillus niger Is the Sole Etiological Agent for CSOM : A Clinical Case from Nepal. Case Rep Infect Dis 2021; 2021:5556679. [PMID: 34616576 PMCID: PMC8490061 DOI: 10.1155/2021/5556679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 08/06/2021] [Accepted: 09/14/2021] [Indexed: 11/17/2022] Open
Abstract
Aspergillus causing chronic suppurative otitis media (CSOM) is rare in immunocompetent people; however, it can occur as a significant opportunistic pathogen in immunocompromised patients. Here, in our study, a 53-year-old diabetic patient having a history of CSOM visited the Department of Otorhinolaryngology-Head and Neck Surgery (ENT-HNS), Tribhuvan University and Teaching Hospital (TUTH), Nepal, in March 2016. Although he was on medication with an antibacterial ear drop from the last 10 days, his right ear was presented with otorrhea, pruritus, otalgia, aural fullness, hearing impairment, and tinnitus from the last 3-4 months. Preliminarily, otoscopy of the right ear revealed the presence of fungal mass. For further diagnosis, ear discharge was aseptically collected and sent to the laboratory to confirm the etiological agents. Findings of laboratory analysis indicated that Gram staining of aural discharge displayed pus cells with fungal spores but did not exhibit bacteria. Furthermore, potassium hydroxide (KOH) mount revealed the presence of fungal spores and septate hyphae with the characteristic of dichotomous branching. Culture in four different bacterial media (chocolate agar, blood agar, MacConkey agar, and Robertson's cooked meat medium) has unveiled no bacterial growth. However, fungal growth was observed in both bacterial and fungal media. Thereafter, the fungal colony was investigated via a lactophenol cotton blue (LPCB) tease mount which displayed the structure of Aspergillus. Aspergillus niger was microbially conformed by specifically characterizing the specific phenotypic biseriate structure of phialides and the black-coloured conidia. For medication, the patient was treated with Candid Ear Drop with clotrimazole (1% w/v) plus lidocaine (2% w/v) for 4 weeks which successfully improved his condition.
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Merad Y, Derrar H, Tabouri S, Berexi-Reguig F. Candida guilliermondii Onychomycosis Involving Fingernails in a Breast Cancer Patient under Docetaxel Chemotherapy. Case Rep Oncol 2021; 14:1530-1535. [PMID: 34899247 PMCID: PMC8613606 DOI: 10.1159/000519695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 08/11/2020] [Indexed: 11/19/2022] Open
Abstract
Onychomycosis has been shown to have a higher incidence in cancer patients. Nail toxicity is a quite common side effect of anticancer agents. Taxotere© is a chemotherapeutic known to cause great incidence of nail change and has a role in subungual suppuration. We report on a 52-year-old woman with breast cancer admitted in our institution for onycholysis. Because of the stage and histology of breast cancer, neoadjuvant chemotherapy was initiated. The patient received 8 cycles of Taxotere and Adriamycin (AT), and she underwent a modified radical mastectomy. Three months later, the patient developed evidence of onycholysis, involving all the fingernails. We observed the following changes in nails of all the digits in both hands: onycholysis, dystrophy, oedema, and exudate. Nail scraping and purulent discharge were collected and cultured on Sabouraud medium. Physical features of the colonies and biochemical tests (Auxacolor©) revealed Candida guilliermondii as the sole etiologic agent of onychomycosis. This case details an onycholysis in a breast cancer case successfully managed solely with amorolfine lacquer. This clinical and mycological presentation should alert the clinician to the possibility of onychomycosis induced by docetaxel chemotherapy.
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Affiliation(s)
- Yassine Merad
- Department of Parasitology-Mycology, Central Laboratory, Hassani “Abdelkader University Hospital,”, Sidi Bel Abbès, Algeria
- Laboratoire de Synthèse de l'Information Environnementale, Université de Lille, Lille, France
| | - Hichem Derrar
- Department of Pulmonary and Lung Diseases, Sidi Bel Abbès, Algeria
| | - Sarah Tabouri
- Departement of Oncology, Centre Anti Cancer, Sidi Bel Abbès, Algeria
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Alshahni MM, Alshahni RZ, Fujisaki R, Tamura T, Shimizu Y, Yamanishi C, Makimura K. A Case of Topical Ofloxacin-Induced Otomycosis and Literature Review. Mycopathologia 2021; 186:871-876. [PMID: 34410567 DOI: 10.1007/s11046-021-00581-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/30/2021] [Indexed: 10/20/2022]
Abstract
The prevalence of fungal otitis externa, or otomycosis, has been increasing in recent decades. Fungi may act as primary pathogens in this condition, or they may occur as secondary infections after prolonged ototopical treatment with antibiotics, which alters the flora of the external auditory canal (EAC) and enables overgrowth of its fungal inhabitants. We report here a case of otomycosis by Candida parapsilosis, Malassezia obtusa, and Malassezia furfur as a secondary infection following prolonged otic ofloxacin treatment. To the best of our knowledge, although isolation of C. parapsilosis and M. furfur from the EAC is not uncommon, the recovery of M. obtusa has not yet been reported. We also conducted a literature review of the searchable data on PubMed concerning the isolation of Malassezia species from the human EAC.
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Affiliation(s)
- Mohamed Mahdi Alshahni
- Laboratory of Medical Mycology and Space Environmental Medicine, School of Medicine, Graduate School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo, 173-8605, Japan.,Department of AMR Mycosis Control Research in the Environment of Treatment and Education for Physically and Mentally Handicapped Persons, School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo, Japan
| | | | - Ryuichi Fujisaki
- Department of Sports and Medical Science, Faculty of Medical Technology, Teikyo University, Itabashi, Tokyo, Japan
| | - Takashi Tamura
- Teikyo University Institute of Medical Mycology, Tokyo, Japan
| | - Yuya Shimizu
- Department of Otolaryngology, Teikyo University Hospital, Itabashi, Tokyo, Japan
| | | | - Koichi Makimura
- Laboratory of Medical Mycology and Space Environmental Medicine, School of Medicine, Graduate School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo, 173-8605, Japan. .,Department of AMR Mycosis Control Research in the Environment of Treatment and Education for Physically and Mentally Handicapped Persons, School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo, Japan. .,Teikyo University Institute of Medical Mycology, Tokyo, Japan.
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Chen Q, Chu H, Tao Y, Peng L, Zhou L, Liu L, Wu X. A Comparison of Triamcinolone Acetonide Econazole Cream and Nystatin Suspension in Treatment of Otomycosis. Laryngoscope 2020; 131:E1640-E1646. [PMID: 33141477 DOI: 10.1002/lary.29190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/05/2020] [Accepted: 10/05/2020] [Indexed: 11/09/2022]
Abstract
OBJECTIVES/HYPOTHESIS To compare the efficacy and adverse effects of triamcinolone acetonide econazole cream and nystatin suspension in the treatment of otomycosis, and to determine the clinical features, predisposing factors, and etiology of otomycosis. STUDY DESIGN A prospective study. METHODS A prospective clinical trial was conducted on 786 patients diagnosed with otomycosis. The study population was randomly divided into two treatment groups of triamcinolone acetonide econazole cream (TAEC) and nystatin suspension in a 1:1 ratio. After clearing all fungal deposits in the external auditory canal, the antimycotic drugs were locally applied for at least 2 weeks. The efficacy and adverse effects were compared between the two antifungal reagents by statistical analysis. Meanwhile, patient clinical data were collected to find out the clinical features, predisposing factors, and etiology. RESULTS Pruritis was the most common symptom and Aspergillus niger was the leading fungal pathogen. There was high association (44.5%) of otomycosis with a history of unclean ear picking. The cure rate was 97.6% in the TAEC group and 73.5% in the nystatin group (P < .01). Treatment with TAEC resulted in 2.4% of patients complaining of discomforts (irritant dermatitis, otalgia, or headache) versus 59.8% of patients complaining discomforts treated with nystatin (P < .01). The residue rate of antifungals was 1.9% in the TAEC group and 89.9% in the nystatin group (P < .01) at the end of treatment. CONCLUSIONS Thoroughly cleaning of the external auditory canal followed by local use of TAEC under endotoscope is an effective, convenient, and well-tolerated treatment for otomycosis. LEVEL OF EVIDENCE 1 Laryngoscope, 131:E1640-E1646, 2021.
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Affiliation(s)
- Qingguo Chen
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hanqi Chu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanling Tao
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liyan Peng
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liangqiang Zhou
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Liu
- Department of Otolaryngology-Head and Neck Surgery, Tianyou Hospital Affiliated to Wuhan University of Science & Technology, Wuhan, China
| | - Xiaohui Wu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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The changing nature of paediatric otomycosis in the mid-west of Ireland. The Journal of Laryngology & Otology 2020; 134:592-596. [PMID: 32713390 DOI: 10.1017/s0022215120001164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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.
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Jimenez-Garcia L, Celis-Aguilar E, Díaz-Pavón G, Muñoz Estrada V, Castro-Urquizo Á, Hernández-Castillo N, Amaro-Flores E. Efficacy of topical clotrimazole vs. topical tolnaftate in the treatment of otomycosis. A randomized controlled clinical trial. Braz J Otorhinolaryngol 2020; 86:300-307. [PMID: 30826311 PMCID: PMC9422661 DOI: 10.1016/j.bjorl.2018.12.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 11/14/2018] [Accepted: 12/11/2018] [Indexed: 11/29/2022] Open
Abstract
Introduction Otomycosis, an infection of the ear canal by fungi, is prevalent in hot and humid weather. Nevertheless, there is not sufficient evidence for the effectiveness of different topical antifungal treatments. Tolnaftate, is a topical antifungal agent described to be effective in the treatment of otomycosis. Currently there are not sufficient studies that prove its efficacy. Objectives To compare the efficacy of clotrimazole and tolnaftate administration in the treatment of otomycosis. Material and methods A controlled, randomized and open clinical trial included patients diagnosed with fungal external otitis who were treated with topical antifungals, randomized into two treatment groups: (1) clotrimazole cream; (2) tolnaftate solution. They were microscopically evaluated at one and two weeks of treatment to determine resolution of disease. Recurrence and complications were recorded. Demographic and clinical variables were collected and analyzed. Follow-up and final outcomes (absence of infection) were compared between groups. Results Forty eight patients were included, 28 in the clotrimazole group and 20 in the tolnaftate group. Spring was the weather most commonly associated with otomycosis, while otic manipulation was the risk factor more common in both groups. Predominant symptoms were itching and otic fullness. Aspergillus niger organism was isolated most frequently. Treatment with clotrimazole resulted in 75% resolution vs 45% resolution with treatment with tolnaftate at one week of treatment (p = 0.007). The Tolnaftate treatment group demonstrated higher recurrence rates and treatment failures, 20% and 15% respectively. Conclusions Clotrimazole cream treatment is more effective than tolnaftate for uncomplicated otomycosis. More studies are needed to corroborate our results.
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Affiliation(s)
- Lesly Jimenez-Garcia
- Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud, Otolaryngology Department, Culiacán, Mexico
| | - Erika Celis-Aguilar
- Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud, Otolaryngology Department, Culiacán, Mexico.
| | - Gaudencio Díaz-Pavón
- Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud, Otolaryngology Department, Culiacán, Mexico
| | - Victor Muñoz Estrada
- Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud, Mycology Department, Culiacán, Mexico
| | - Ángel Castro-Urquizo
- Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud, Otolaryngology Department, Culiacán, Mexico
| | - Nemiliztli Hernández-Castillo
- Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud, Otolaryngology Department, Culiacán, Mexico
| | - Ernesto Amaro-Flores
- Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud, Otolaryngology Department, Culiacán, Mexico
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Gharaghani M, Halvaeezadeh M, Ali Jalaee G, Taghipour S, Kiasat N, Zarei Mahmoudabadi A. Antifungal susceptibility profiles of otomycosis etiological agents in Ahvaz, Iran. Curr Med Mycol 2020; 6:18-22. [PMID: 33628977 PMCID: PMC7888522 DOI: 10.18502/cmm.6.2.2696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background and Purpose Otomycosis is a secondary ear fungal infection among predisposed individuals in humid conditions. Aspergillus species are the most common etiologic agents of this infection. Several ototopical antifungals are currently used for the treatment of this disease; however, recurrence and treatment failure are usually observed in some cases. Regarding this, the present study was conducted to investigate the antifungal activity of caspofungin, azoles, and terbinafine against the isolated agents of otomycosis. Materials and Methods This study was conducted on the specimens collected from 90 patients with otomycosis. The samples were cultured on Sabouraud dextrose agar and identified based on morphological characteristics, physiological tests, and microscopic features. Furthermore, the microdilution method was used for antifungal susceptibility testing according to the Clinical and Laboratory Standards Institute (CLSI) guidelines. Finally, the minimum inhibitory concentration (MIC) and minimum effective concentration (MEC) ranges, MIC/MEC50, MIC/MEC90, and geometric mean (GM) MIC/MEC were calculated for the isolates. Results According to the results, 77 patients with otomycosis were positive for different Aspergillus (88.3%) and Candida (11.7%) species. Aspergillus niger complex (n=36) was found to be the most common agent, followed by A. flavus, A. terreus, and A. nidulans complexes. Furthermore, epidemiological cutoff values (ECVs) were lower than those presented by the CLSI for itraconazole and caspofungin in 98.5% and 42.6% of Aspergillus species, respectively. Terbinafine exhibited a great activity against Aspergillus species, while fluconazole revealed a low activity against both Aspergillus species. Based on the results, 77.8% of Candida species were resistant to caspofungin; however, miconazole and econazole had low MIC ranges. Conclusion Aspergillus niger and A. flavus complexes were identified as the most common agents accounting for 85.7% of the isolates. In addition, terbinafine was identified as the best antifungal for both Aspergillus and Candida species. Moreover, tested azoles had relatively low MICs, whereas most of the isolates had the MIC values beyond the caspofungin ECVs.
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Affiliation(s)
- Maral Gharaghani
- Department of Medical Mycology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Marzieh Halvaeezadeh
- Department of Medical Mycology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Simin Taghipour
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neda Kiasat
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Zarei Mahmoudabadi
- Department of Medical Mycology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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14
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Role of Clotrimazole in Prevention of Recurrent Otomycosis. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5269535. [PMID: 31950041 PMCID: PMC6944967 DOI: 10.1155/2019/5269535] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 12/03/2019] [Indexed: 11/28/2022]
Abstract
Otomycosis is one of the relatively common diseases in the world which is caused by different fungi especially saprophytes. Concerning the relapse of this disease in a number of individuals, the present study was performed to evaluate the inhibitory effect of clotrimazole drop in the relapse of otomycosis. Clinical samples were taken by an ENT specialist from patients suspicious of having otomycosis. A part of these samples were stained, and others were cultured. The diagnosis of otomycosis was made on the basis of the recognizable and characteristic appearance of fungal hyphae or mycelium and fruiting bodies and/or conidiophores under microscopic examination. Patients with suspected otomycosis are not at risk of recurrence after treatment with clotrimazole drops. Out of the 161 individuals in whom definite diagnosis of otomycosis was made, the most affected individuals were, in the age range of 40–49 years, women, urban citizens, and housewives. Pruritus and diminished hearing were the main complaints of the patients. Aspergillus niger and A. flavus as well as Candida albicans were the main causes of the disease. The relapse of disease was observed in only five patients (3.1%), where A. niger was the main fungus. Most relapses were observed in women and in those with diminished hearing, manipulating the ears, ulcers in the canal, and tympanum. Our results suggested that usage of clotrimazole can be effective in reducing the relapse of otomycosis, and concerning the high cost of treating otomycosis while the low cost of using clotrimazole, usage of this drop is recommended to reduce the relapse of otomycosis.
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Koltsidopoulos P, Skoulakis C. Otomycosis With Tympanic Membrane Perforation: A Review of the Literature. EAR, NOSE & THROAT JOURNAL 2019; 99:518-521. [PMID: 31142158 DOI: 10.1177/0145561319851499] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE The purpose of the present study was to assess the rate of tympanic membrane perforation in patients with otomycosis and to discuss the literature regarding the difficulties in managing this condition. DATA SOURCES Literature review from 1999 to 2019, Web of Science, PubMed, and Medline. STUDY SELECTION We searched for eligible articles concerning the clinical entity of tympanic membrane perforation secondary to otomycosis. Case series and clinical trials were the types of articles included for this review. DATA EXTRACTION All the articles described in the study selection were used for this review. DATA SYNTHESIS Statistical techniques were not used. CONCLUSION Based on the available literature, it seems that tympanic membrane perforation secondary to otomycosis is not uncommon. The presence of this complication is associated with 2 problems: Antimycotic solutions are irritant to middle ear and may be ototoxic to the cochlea. Although most cases of fungus caused tympanic membrane (TM) perforation resolve with proper medical treatment, in a few patients a tympanoplasty may be required.
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Abastabar M, Haghani I, Ahangarkani F, Rezai MS, Taghizadeh Armaki M, Roodgari S, Kiakojuri K, Al-Hatmi AMS, Meis JF, Badali H. Candida auris otomycosis in Iran and review of recent literature. Mycoses 2019; 62:101-105. [PMID: 30585653 DOI: 10.1111/myc.12886] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 12/14/2022]
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.
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Affiliation(s)
- Mahdi Abastabar
- Department of Medical Mycology/Invasive Fungi Research Center (IFRC), School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Iman Haghani
- Department of Medical Mycology/Invasive Fungi Research Center (IFRC), School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Ahangarkani
- Department of Medical Mycology/Invasive Fungi Research Center (IFRC), School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Sadegh Rezai
- Pediatric Infectious Diseases Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mojtaba Taghizadeh Armaki
- Department of Medical Mycology and Parasitology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Somayeh Roodgari
- Department of Medical Mycology/Invasive Fungi Research Center (IFRC), School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Keyvan Kiakojuri
- Department of Ear, Nose, and Throat, Faculty of Medicine, Roohani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Abdullah M S Al-Hatmi
- Center of Expertise in Mycology Radboud University Medical Centre/Canisius Wilhelmina Hospital and Excellence Center for Medical Mycology of the European Confederation of Medical Mycology (ECMM), Nijmegen, The Netherlands.,Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Ministry of Health, Directorate General of Health Services, Ibri, Oman
| | - Jacques F Meis
- Center of Expertise in Mycology Radboud University Medical Centre/Canisius Wilhelmina Hospital and Excellence Center for Medical Mycology of the European Confederation of Medical Mycology (ECMM), Nijmegen, The Netherlands.,Department of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Hamid Badali
- Department of Medical Mycology/Invasive Fungi Research Center (IFRC), School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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17
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Sabz G, Gharaghani M, Mirhendi H, Ahmadi B, Gatee MA, Sisakht MT, Hemati A, Mohammadi R, Taghavi J, Nouripour-Sisakht S. Clinical and microbial epidemiology of otomycosis in the city of Yasuj, southwest Iran, revealing Aspergillus tubingensis as the dominant causative agent. J Med Microbiol 2019; 68:585-590. [PMID: 30801244 DOI: 10.1099/jmm.0.000948] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE Otomycosis is a mycotic infection of the external auditory canal and can be caused by a wide range of fungal species. In this study, we aimed to identify fungal isolates from patients suspected of otomycosis. METHODOLOGY External ear canal samples were taken from patients referred to the outpatient department of Shahid-Mofatteh Clinic in the city of Yasuj, Iran, and examined by direct microscopy and culture. DNA of the isolated fungi was tested by internal transcribed spacer PCR restriction fragment length polymorphism analysis for identification of yeasts and β-tubulin sequencing for identification of Aspergillus species. RESULTS Among 275 patients suspected of otomycosis, 144 cases (83 female and 61 male) were confirmed with otomycosis. For 89% (n=128) of positive cultures, microscopy was also positive, while there were no cases with a microscopy-positive and culture-negative result. The predominant predisposing factor was self-cleaning of the external ear using unhygienic tools, and the main risk occupation was 'housewife'. The most common isolated fungi were typically Aspergillus (n=120), including 73 isolates of Aspergillus section Nigri, 43 of section Flavi, 3 of section Terrei and 1 of section Fumigati. After sequencing, 44 out of 73 strains primarily identified as Aspergillus niger turned out to be Aspergillus tubingensis. Thirty-five isolates were identified as Candida, including Candida parapsilosis (n=22), Candida albicans (n=12) and Candida tropicalis (n=1). CONCLUSION Aspergillus tubingensis was the most common species involved in otomycosis. This work corroborates the difficulty of precise identification of species within the black Aspergilli by morphological characteristics.
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Affiliation(s)
- Gholamabbas Sabz
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Maral Gharaghani
- Department of Medical Mycology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hossein Mirhendi
- Departments of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Bahram Ahmadi
- Department of Medical Laboratory Sciences, Faculty of Paramedical, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Mohamad Amin Gatee
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.,Student Research Committee, Yasuj University of Medical Sciences, Yasuj, Iran
| | | | - Alireza Hemati
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Reza Mohammadi
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Jabar Taghavi
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Sadegh Nouripour-Sisakht
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.,Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
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19
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Kwon YJ, Byun SA, Choi MJ, Won EJ, Kim SH, Shin JH. Species Distribution and Antifungal Susceptibility of Yeasts Isolated from Ear Specimens. ANNALS OF CLINICAL MICROBIOLOGY 2019. [DOI: 10.5145/acm.2019.22.4.81] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Yong Jun Kwon
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seung A Byun
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Min Ji Choi
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Jeong Won
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Soo Hyun Kim
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Jong Hee Shin
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
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20
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Nehra P, Chauhan RP, Garg N, Verma K. Antibacterial and antifungal activity of chitosan coated iron oxide nanoparticles. Br J Biomed Sci 2017; 75:13-18. [DOI: 10.1080/09674845.2017.1347362] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- P Nehra
- School of Biomedical Engineering, National Institute of Technology, Kurukshetra, India
| | - RP Chauhan
- Department of Physics, National Institute of Technology, Kurukshetra, India
| | - N Garg
- Department of Microbiology, Kurukshetra University, Kurukshetra, India
| | - K Verma
- Department of Microbiology, Kurukshetra University, Kurukshetra, India
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Ismail MT, Al-Kafri A, Ismail M. Otomycosis in Damascus, Syria: Etiology and clinical features. Curr Med Mycol 2017; 3:27-30. [PMID: 29707671 PMCID: PMC5914924 DOI: 10.29252/cmm.3.3.27] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background and Purpose: Otomycosis is a fungal infection that frequently involves the external auditory canal. The epidemiologic data on the etiologic agents of otomycosis in Syria are very limited. In this study, we aimed to determine the fungal agents, gender distribution, and clinical presentation of otomycosis. Materials and Methods: Two hundred and ninety nine patients (153 [51.17%] male and 146 [48.83%] female) clinically prediagnosed as otomycosis were studied at Al-mouassat University Hospital and ENT Crescent Syrian Clinic. Clinical samples were collected from the ear discharges and cultured on Sabouraud Agar. Results: Otomycosis was diagnosed in 70 (23.4%) cases, with the highest prevalence in males aged 16-75 years (73.6%). The isolation rates of mold and yeast fungi were 75.7% and 24.3%, respectively. The most common presentations were otorrhea (98.66%), otalgia (18.06%), and hearing loss (6.35%). Our results showed that 64.28% of otomycosis agents were Aspergillus species. A.niger was the most common agent (45.7%), and 24.3% of the pathogens were C.albicans. Conclusion: Otomycosis agents most commonly belonged to the genus of Aspergillus followed by Candida, which should be seriously considered by physicians for appropriate treatment.
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Affiliation(s)
- Mohammad T Ismail
- Department of Microbiology, Faculty of Pharmacy, Arab International University (AIU), Ghabaghib, Daraa Governorate, Syria
| | - Abeer Al-Kafri
- Department of Microbiology, Faculty of Pharmacy, Arab International University (AIU), Ghabaghib, Daraa Governorate, Syria
| | - Mazen Ismail
- Research Department, Arab International University (AIU), Ghabaghib, Daraa Governorate, Syria
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Choi HI, An J, Hwang JJ, Moon SY, Son JS. Otomastoiditis caused by Candida auris
: Case report and literature review. Mycoses 2017; 60:488-492. [DOI: 10.1111/myc.12617] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/22/2017] [Accepted: 02/23/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Hyoung Il Choi
- Department of Internal Medicine; Kyung Hee University Hospital at Gangdong; Seoul Korea
| | - Jin An
- Department of Internal Medicine; Kyung Hee University Hospital at Gangdong; Seoul Korea
| | - Jae Joon Hwang
- Department of Internal Medicine; Kyung Hee University Hospital at Gangdong; Seoul Korea
| | - Soo-youn Moon
- Department of Internal Medicine; Kyung Hee University Hospital at Gangdong; Seoul Korea
| | - Jun Seong Son
- Department of Internal Medicine; Kyung Hee University Hospital at Gangdong; Seoul Korea
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Kazemi A, Majidinia M, Jaafari A, Ayatollahi Mousavi SA, Zarei Mahmoudabadi A, Alikhah H. Etiologic Agents of Otomycosis in the North-Western Area of Iran. Jundishapur J Microbiol 2015; 8:e21776. [PMID: 26495108 PMCID: PMC4609173 DOI: 10.5812/jjm.21776] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 03/25/2015] [Accepted: 05/27/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Otomycosis is a superficial fungal infection often involves the pinna and external auditory canal. It is a pathologic condition, with Candida and Aspergillus, the most common fungal species. It is common worldwide but more prevalent in tropical and subtropical countries. OBJECTIVES The aim of this study was to determine the etiologic agents and local epidemiologic pattern of otomycosis in northwest Iran. PATIENTS AND METHODS A series of 140 patients with clinically symptomatic otomycosis were studied in 21 cities, towns, and villages throughout northwest Iran between 2009 and 2011. Clinical samples were collected by swabs and then assessed by mycological investigation. RESULTS Otomycosis was diagnosed in 129 cases (92%, 76 male, 53 female) with the highest prevalence of cases occurring in males between 21 - 40 years of age. From an etiological point of view, 116 patients (90%, 21 - 40 years old) were infected by saprophytic mold and 9 patients (7%) were infected by yeast. Three cases (2%) involved dermatophytes, and in one case (1%) the subject was infected with Eurotium (the perfect stage of Aspergillus fumigatus). Aspergillus niger was the most common mold that was isolated, followed by A. flavus, A. fumigatus, Penicillium spp., Fusarium spp., and Rhizopus spp. A total of 2 yeasts belonging to genus Candida, C. albicans and C. tropicalis, were isolated. CONCLUSIONS Our study showed a high prevalence of otomycosis in the northwestern area of Iran. As such, proper diagnosis and treatment by aseptic techniques for this disease is urgently needed.
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Affiliation(s)
- Abdolhassan Kazemi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, IR Iran
| | - Maryam Majidinia
- Student Research Committee, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, IR Iran
| | - Abbasali Jaafari
- Basic Science Department, International Branch, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
| | - Seyyed Amin Ayatollahi Mousavi
- Department of Medical Mycology and Parasitology, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, IR Iran
| | - Ali Zarei Mahmoudabadi
- Health Research Institute, Infectious and Tropical Diseases Research Centre, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Hossein Alikhah
- Publication Office, Tabriz University of Medical Sciences, Tabriz, IR Iran
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Yang S, Fu Y, Wu X, Zhou Z, Xu J, Zeng X, Kuang N, Zeng Y. Baicalin prevents Candida albicans infections via increasing its apoptosis rate. Biochem Biophys Res Commun 2014; 451:36-41. [DOI: 10.1016/j.bbrc.2014.07.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Accepted: 07/08/2014] [Indexed: 12/12/2022]
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Primary otomycosis in the Indian subcontinent: predisposing factors, microbiology, and classification. Int J Microbiol 2014; 2014:636493. [PMID: 24949016 PMCID: PMC4052204 DOI: 10.1155/2014/636493] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 04/06/2014] [Accepted: 04/14/2014] [Indexed: 11/17/2022] Open
Abstract
Objective. To define otomycosis and determine the predisposing factors and microbiology in primary otomycosis. Study Design. Prospective study of two years and review of the literature. Setting. Academic Department of Otolaryngology in a coastal city in India. Patients. 150 immunocompetent individuals of whom 100 consecutive patients with a clinical diagnosis of otomycosis are considered as the study group and 50 consecutive patients with no otomycosis are considered as the control group. Results and Observations. Instillation of coconut oil (42%), use of topical antibiotic eardrops (20%), and compulsive cleaning of external ear with hard objects (32%) appeared to be the main predisposing factors in otomycosis. Aspergilli were the most common isolates (80%) followed by Penicillium (8%), Candida albicans (4%), Rhizopus (1%), and Chrysosporium (1%), the last being reported for the first time in otomycosis. Among aspergilli, A. niger complex (38%) was the most common followed by A. fumigatus complex (27%) and A. flavus complex (15%). Bacterial isolates associated with fungi in otomycosis were S. aureus, P. aeruginosa, and Proteus spp. In 42% of healthy external ears fungi were isolated. Conclusion. Aspergillus spp. were the most common fungi isolated, followed by Penicillium. Otomycotic ears are often associated with bacterial isolates when compared to normal ears. Fungi are also present in a significant number of healthy external auditory canals and their profiles match those in cases of otomycosis. The use of terms "primary" and "secondary" otomycosis is important to standardize reporting.
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Nickbakht M, Borzoo S. Conductive and Mixed Hearing Losses: A Comparison between Summer and Autumn. KOREAN JOURNAL OF AUDIOLOGY 2014; 18:13-8. [PMID: 24782946 PMCID: PMC4003731 DOI: 10.7874/kja.2014.18.1.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 02/20/2014] [Accepted: 03/03/2014] [Indexed: 11/22/2022]
Abstract
Background and Objectives Conductive hearing loss is common among children and adults. This study aims at comparing the results of conductive hearing loss in summer and autumn. Subjects and Methods Puretone audiometry and tympanometry tests were done for all patients who referred to the Iranian-based audiology center of Imam Khomeini Hospital in Ahvaz. Data on the patients with conductive or mixed hearing loss were analyzed. The impacts of season, age, and etiology of the disease were analyzed on the patients who visited the audiology clinic due to the conductive hearing loss in summer and autumn. Results One hundred and fifty nine patients in summer and 123 patients in autumn had conductive or mixed hearing loss. Their age ranged from four to 82 years, with the average age of 35. The percentage of the patients, with acute otitis media and chronic otitis media (COM), who visited this clinic, was significantly higher than those with middle ear problems. COM and mastoid surgeries rate was higher in summer than autumn among adults. Conclusions There is no relationship between season and middle ear diseases between children and juveniles, but COM and mastoid problems are more common in summer among adults visiting this clinic. Most of the patients had mild conductive hearing loss and bilateral middle ear impairments.
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Affiliation(s)
| | - Samira Borzoo
- Department of Rehabilitation Management, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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