Volume 15, Issue 1 (Iranian South Medical of Journal 2012)                   Iran South Med J 2012, 15(1): 59-68 | Back to browse issues page

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Eini P, Mobaien A, Agha Sharif M. Importance of diagnostic laboratory methods of beta hemolytic streptococcus group A in comparison with clinical findings in the diagnosis of streptococcal sore throat and unnecessary antibacterial therapy. Iran South Med J 2012; 15 (1) :59-68
URL: http://ismj.bpums.ac.ir/article-1-314-en.html
1- Hamadan University of Medical Sciences, Hamadan, IRAN , eini@umsha.ac.ir
2- Zanjan University of Medical Sciences, Sistan Baloochestan, IRAN
3- School of Medicine, Hamadan University of Medical Sciences, Hamadan, IRAN
Abstract:   (21478 Views)

Background: Streptococcus Pyogenes (group A streptococcus, GAS) is the most important cause of bacterial pharyngitis in children and adolescents. Acute pharyngitis is one of the most common conditions in all ages but it is most common in children. Over diagnosis of acute pharyngitis represents one of the major causes of antibiotic abuse. The goal of this study is to make an estimate of the frequency of group A streptococcus in sore throat patients in Farshchian hospital emergency department and clinic in Hamadan. Methods: For estimation of the clinical features role in diagnosis of streptococcal sore throat, we took samples of 100 patients with average age of 32.96±29.86 years with sore throat. We took samples from pharynx and used standard methods of bacteriology in order to detect streptococcus. Results: Group A Streptococcus (GAS) accounts for 3 percent of all cases of pharyngitis. Clinically, all of the patients had sore throat. The percent breakdowns are as follows: 30% had exudate, 78% had fever, 8% had lymphadenopathy and 7.7 percent of exudative pharyngitis was streptococcal. The cost for unnecessary antibiotic therapy for every single patient who had negative pharynx culture was approximately 32160 Rails. Conclusion: The low frequency of streptococcus pharyngitis in treated patients reveal that diagnosis based on clinical features is not reliable. We recommend use of other diagnostic methods such as Rapid Antigen Detection Tests (RATs). Only reliable and scientific protocols for antibiotic to therapy.

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Type of Study: Original | Subject: General
Received: 2010/07/16 | Accepted: 2010/10/11 | Published: 2012/01/16

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