The impact of incubating the throat culture for 72 h on the diagnosis of group a beta-hemolytic streptococci

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dc.authorid0000-0003-1514-1685en_US
dc.authorid0000-0002-2860-1794
dc.authorid0000-0003-0064-3893
dc.contributor.authorKoçoğlu, Esra
dc.contributor.authorKarabay, Oğuz
dc.contributor.authorYılmaz, Fahrettin
dc.contributor.authorEkerbiçer, Hasan
dc.date.accessioned2021-06-23T19:18:54Z
dc.date.available2021-06-23T19:18:54Z
dc.date.issued2006
dc.departmentBAİBÜ, Tıp Fakültesi, Temel Tıp Bilimleri Bölümüen_US
dc.description.abstractObjective: The accurate detection and treatment of group A beta-hemolytic streptococcal pharyngitis is important to prevent the potential sequels. Throat culture remains the gold standard for the diagnosis of streptococcal pharyngitis. Many authors recommended 48 It incubation time for the isolation of group A Streptococcus (GAS). In this study the diagnostic efficacy of prolonging the incubation time of throat cultures to 72 It for isolation of GAS was researched. Methods: Throat swab specimens were inoculated to 5% sheep blood agar plate and incubated at 37 degrees C, and evaluated at the 24th hour. GAS negative plates were incubated again for another 24 h and read at the 48th hour. Negative plates at 48 It were incubated again, read at the 72nd hour, and positive results of all measurements were evaluated. Results: A total of 367 cultures were examined. At the 24th hour evaluation 34 (9.3%) cultures were positive for GAS. Evaluation of 333 cultures that were found to be negative in the first 24th hour evaluation revealed 44 (13.6%) positive cultures at 48th hour evaluation. Out of 289 cultures that were negative during the 48th hour evaluation, an additional 13 (4.7%) cultures were found to be positive during the 72nd hour evaluation. The agreement between 24th-48th and 24th and 72nd were both moderate (kappa 0.54 and 0.46, respectively), and between 48th and 72nd hour was very good (kappa: 0.90). Conclusion: Throat cultures that are negative for GAS at 24 h should be incubated for second day. We conclude that, to confirm the throat cultures GAS negative. results of throat cultures need to be incubated for 72 h, since 72nd hour evaluations revealed additional 5% positive results.en_US
dc.identifier.doi10.1016/j.anl.2005.11.011
dc.identifier.endpage313en_US
dc.identifier.issn0385-8146
dc.identifier.issn1879-1476
dc.identifier.issue3en_US
dc.identifier.pmid16431061en_US
dc.identifier.scopus2-s2.0-33744980233en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage311en_US
dc.identifier.urihttps://doi.org/10.1016/j.anl.2005.11.011
dc.identifier.urihttps://hdl.handle.net/20.500.12491/5833
dc.identifier.volume33en_US
dc.identifier.wosWOS:000238902400011en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorKoçoğlu, Esra
dc.institutionauthorKarabay, Oğuz
dc.institutionauthorYılmaz, Fahrettin
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofAuris Nasus Larynxen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectThroat Cultureen_US
dc.subjectIncubation Timeen_US
dc.subjectGroup A Beta-hemolytic Streptococcusen_US
dc.titleThe impact of incubating the throat culture for 72 h on the diagnosis of group a beta-hemolytic streptococcien_US
dc.typeArticleen_US

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