Microbiology of peritonsillar abscess in the South Estonian population

Microbial Ecology in Health and Disease

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Title Microbiology of peritonsillar abscess in the South Estonian population
Creator Vaikjärv, Risto; Department of Otorhinolaryngology, University of Tartu
Kasenõmm, Priit
Jaanimäe, Liis
Kivisild, Ave
Rööp, Tiiu
Sepp, Epp
Mändar, Reet
Subject peritonsillar abscess; recurrent tonsillitis; microbiota; sampling
Description Objective: The first aim of this study was to compare the microbiota of different locations (pus, tonsillar fossa, blood) in peritonsillar abscess (PTA) patients in order to optimize the sampling scheme. The second aim was to estimate the occurrence of tonsillitis episodes and macroscopic oropharyngeal signs characteristic of recurrent tonsillitis in PTA patients.Methods: The study group consisted of 22 consecutive patients with PTA undergoing bilateral tonsillectomy. The PTA was punctured; pus and tonsillar fossa biopsy samples and the peripheral blood cultures were collected. The index of tonsillitis was calculated by multiplying the number of tonsillitis episodes per year by the morbidity period in years. Macroscopic oropharyngeal signs were evaluated and they were as follows: tonsillar sclerosis, obstruction of the tonsillar crypts, scar tissue on tonsils, cryptic debris, and lymphatic tissue aggregates.Results: The cultures of the pus were positive in 16 out of 22 patients and the cultures of the tonsillar fossa samples were positive in all cases. In total, 62 different organisms were found from tonsillar fossa, pus, and blood samples, which belonged to 5 different phyla and 18 different families.In the tonsillar fossa, the most frequent bacteria found were Streptococcus spp. In pus samples, the most frequently found bacteria were Streptococcus spp. and bacteria from the Streptococcus milleri group.Conclusion: PTA patients had mixed anaerobic and aerobic microbiota both in the tissue of the tonsillar fossa and the pus of the peritonsillar space. We demonstrated that the tonsillar fossa specimen is a better material for microbiological analyses, because it reveals more bacteria per culture. PTA patients usually have a low number of tonsillitis episodes in their previous history, but a relatively high number of macroscopic oropharyngeal signs, indicating the sclerotic process in palatal tonsils.Keywords: peritonsillar abscess; recurrent tonsillitis; microbiota; sampling(Published: 22 April 2016)Citation: Microbial Ecology in Health & Disease 2016, 27: 27787 - http://dx.doi.org/10.3402/mehd.v27.27787
Publisher Microbial Ecology in Health and Disease
Contributor Estonian Ministry of Education and Research
University of Tartu
Date 2016-04-22
Type info:eu-repo/semantics/article

Format application/pdf
Identifier http://www.microbecolhealthdis.net/index.php/mehd/article/view/27787
Source Microbial Ecology in Health and Disease; Vol 27 (2016)
Language eng
Relation http://www.microbecolhealthdis.net/index.php/mehd/article/view/27787/46267
Rights Copyright (c) 2016 Microbial Ecology in Health and Disease

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