Bacteriological profile and antimicrobial susceptibility pattern of pyoderma in a tertiary care hospital

Abstract

Background: Pyoderma is a common dermatological disorder mainly affecting children but can also affect adults. Its prevalence,
causative organism, and antibiotic sensitivity pattern may vary from place to place. Therefore, clinical and bacteriological profile
of pyoderma in tertiary care hospital of North India was studied. Methods: A retrospective analysis was conducted from pus
samples obtained in the microbiology department over 1 year from patients attending the dermatology outpatient department/
inpatient department seeking treatment for pyoderma. Pus swabs were cultured and organisms were identified, and their sensitivity
was tested according to the standard laboratory methods. Results: Out of 100 cases diagnosed with pyoderma, males (61%)
outnumbered females (39%). 72% of the cases were diagnosed with primary pyoderma while 28% with secondary pyoderma. 54%
of the total samples received were infected with Staphylococcus aureus. Methicillin-resistant S. aureus was isolated in 7.4% of
the all S. aureus isolates obtained. Gram-negative bacilli were detected in 16% of total samples with predominance of Klebsiella
pneumoniae (6%). 8% of the samples yielded sterile culture. None of the isolates were ESBL producers. Conclusion: The study
gives an indication of changing trends of antibiotic susceptibility patterns in the pathogenic isolates obtained from pyodermas
which in turn prevents the development of multidrug resistance.