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Identification of pathogens isolated in acute external otitis cases and evaluation of aminoglycoside and quinolone sensitivity

Published online by Cambridge University Press:  17 August 2021

G Orhan Kubat*
Affiliation:
Department of ENT, School of Medicine, Alanya Alaadin Keykubat University, Alanya, Turkey
B Dogan
Affiliation:
Department of Microbiology, School of Medicine, Alanya Alaadin Keykubat University, Alanya, Turkey
*
Author for correspondence: Dr Gözde Orhan Kubat, Department of ENT, School of Medicine, Alanya Alaadin Keykubat University, Kestel District, University Street, No. 80, Antalya07425, Turkey E-mail: [email protected]

Abstract

Objective

This study aimed to identify pathogens isolated in acute external otitis cases and determine their distribution according to ages and seasons as well as investigate the susceptibility or resistance to the aminoglycoside and quinolone group antibiotics of which topical forms are available.

Method

A total of 168 patients diagnosed with acute external otitis were evaluated retrospectively. Growing bacteria were identified according to the species by conventional methods. Antibiotic susceptibility status was determined for the growing bacteria.

Results

The most common bacteria detected were pseudomonas group bacteria (38.7 per cent). Resistance to the amikacin group of antibiotics was found to be the lowest and resistance to the ciprofloxacin group of antibiotics was the highest.

Conclusion

External auditory canal cultures should be taken simultaneously with empirical treatment. Seasonal effect and age group should be taken into consideration in the choice of treatment and after questioning about chronic exposure to water. Empirical treatment should then be started.

Type
Main Articles
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

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Footnotes

Dr G Orhan Kubat takes responsibility for the integrity of the content of the paper

References

Brook, I. Treatment of otitis externa in children. Paediatr Drugs 1999;1:283–9CrossRefGoogle ScholarPubMed
Mayer, T. Beobachtungen von Cysten mit Fadenpilzen aus dem aüsseren Gehörgane eines Madchens. Arch F Anat Physiol U Wissensch Med 1844;404–8Google Scholar
Stone, KE. Otitis externa. Pediatr Rev 2007;28:77–8CrossRefGoogle ScholarPubMed
ALjaafreha, LY, Tawalbeh, M, Shehabi, AA. Otitis external infections among jordanian patients with emphasis on pathogenic characteristics of isolates. Open Microbiol J 2019;13:292–6CrossRefGoogle Scholar
Taheri P, Alizadeh, Rostami, S, Sadeghi, M. External otitis: an unusual presentation in neonates. Case Rep Infect Dis 2016;7381564Google Scholar
Adegbiji, WA, Aremu, SK, Olatoke, F, Olajuyin, AO, Ogundipe, KO. Epidemiology of otitis externa in developing country. Int J Recent Sci Res 2017;8:18023–7Google Scholar
Control CfD, Prevention. Estimated burden of acute otitis externa-United States, 2003-2007. MMWR Morb Mortal Wkly Rep 2011;60:605Google Scholar
Beers, SL, Abramo, TJ. Otitis externa review. Pediatr Emerg Care 2004;20:250–6CrossRefGoogle ScholarPubMed
Garcia, LS. Clinical Microbiology Procedures Handbook, 3rd edn. Washington, DC: American Society for Microbiology Press, 2010Google Scholar
Kiakojuri, K, Omran, SM, Jalili, B, Hajiahmadi, M, Bagheri, M, Shahandashti, EF et al. Bacterial otitis externa in patients attending an ENT clinic in Babol, North of Iran. Jundishapur J Microbiol 2016;9:e23093CrossRefGoogle ScholarPubMed
Musso, MF, Crews, JD. Infections of the external ear. In: Valdez, TA, Vallejo, JG eds. Infectious Diseases in Pediatric Otolaryngology. Cham: Springer, 2016;1528CrossRefGoogle Scholar
Calderon, R, Mood, EW. An epidemiological assessment of water quality and “swimmer's ear”. Arch Environ Health 1982;37:300–5CrossRefGoogle ScholarPubMed
Wright, DN, Alexander, JM. Effect of water on the bacterial flora of swimmers' ears. Arch Otolaryngol 1974;99:15–8CrossRefGoogle ScholarPubMed
Russell, J, Donnelly, M, McShane, D, Alun-Jones, T, Walsh, M. What causes acute otitis externa? J Laryngol Otol 1993;107:898901CrossRefGoogle ScholarPubMed
Schaefer, P, Baugh, RF. Acute otitis externa: an update. Am Fam Physician 2012;86:1055–61Google ScholarPubMed
Rosenfeld, RM, Schwartz, SR, Cannon, CR, Roland, PS, Simon, GR, Kumar, KA et al. Clinical practice guideline: acute otitis externa. Otolaryngol Head Neck Surg 2014;150:124CrossRefGoogle ScholarPubMed
Çeviker, SA, Günal, Ö, Mehel, DM, Özgür, A, Kılıç, SS. Evaluation of external ear cultures of patients diagnosed with chronic otitis media: a three years experience of tertiary care hospital. Balikesir Med J 2019;8:8790Google Scholar
Brook, I. Microbiological studies of the bacterial flora of the external auditory canal in children. Acta Otolaryngol 1981;91:285–7CrossRefGoogle ScholarPubMed
Stroman, DW, Roland, PS, Dohar, J, Burt, W. Microbiology of normal external auditory canal. Laryngoscope 2001;111:2054–9CrossRefGoogle ScholarPubMed
Dibb, WL. The normal microbial flora of the outer ear canal in healthy Norwegian individuals. NIPH Ann 1990;13:11–6Google ScholarPubMed
Heward, E, Cullen, M, Hobson, J. Microbiology and antimicrobial susceptibility of otitis externa: a changing pattern of antimicrobial resistance. J Laryngol Otol 2018;132:314–7CrossRefGoogle ScholarPubMed
Roland, PS, Stroman, DW. Microbiology of acute otitis externa. Laryngoscope 2002;112:1166–77CrossRefGoogle ScholarPubMed
Malçok, HK, Uyanık, MH, Aktaş, O, Ayyıldız, A. Evaluation of external auditory canal culture results. Eurasian J Med 2006;38:85–8Google Scholar
Enoz, M, Sevinc, I, Lapeña, JF. Bacterial and fungal organisms in otitis externa patients without fungal infection risk factors in Erzurum, Turkey. Braz J Otorhinolaryngol 2009;75:721–5Google ScholarPubMed
Hajjartabar, M. Poor-quality water in swimming pools associated with a substantial risk of otitis externa due to Pseudomonas aeruginosa. Water Sci Technol 2004;50:63–7CrossRefGoogle ScholarPubMed
Ozcan, KM, Ozcan, M, Karaarslan, A, Karaarslan, F. Otomycosis in Turkey: predisposing factors, aetiology and therapy. J Laryngol Otol 2003;117:3942CrossRefGoogle ScholarPubMed
Pontes, ZB, Silva, AD, Lima Ede, O, Guerra Mde, H, Oliveira, NM, Carvalho Mde, F et al. Otomycosis: a retrospective study. Braz J Otorhinolaryngol 2009;75:367–70CrossRefGoogle ScholarPubMed
Çetinkol, Y, Korkmaz, M, Yildirim, A. Otomycosis and causative organisms in Ordu city. Ankem Derg 2015;29:31–5Google Scholar
Kumar, PJ, Smelt, G. A long term follow up of conchal flap meatoplasty in chronic otitis externa. J Laryngol Otol 2007;121:14CrossRefGoogle ScholarPubMed
Rosenfeld, RM, Singer, M, Wasserman, JM, Stinnett, SS. Systematic review of topical antimicrobial therapy for acute otitis externa. Otolaryngol Head Neck Surg 2006;134:2448CrossRefGoogle ScholarPubMed