Prevalence of Burn Wound Infections with  Aerobic and Anaerobic Bacteria and their  Antimicrobial Susceptibility Pattern at  Tertiary Care Hospital

Ashrit. S. Bhat; VinodKumar C. S

Volume : II, Issue : XII, December - 2013

Prevalence of Burn Wound Infections with Aerobic and Anaerobic Bacteria and their Antimicrobial Susceptibility Pattern at Tertiary Care Hospital

Ashrit. S. Bhat, Vinodkumar C. S

Abstract :

Burns are one of the most common and devastating forms of trauma. Patients with serious thermal injury require immediate specialized care1. A prospective study was carried out in 30 burn patients admitted in Burn unit of S.S. Institute of Medical Sciences and Research Centre, Davangere, for over a period of four months to evaluate time-related changes in bacterial colonization and their sensitivity pattern. Methods: Periodic swabs were taken from the burn wound on Day 0, Day 7, Day 14 and Day 21 to see the changing pattern of organisms during hospital stay of patients by standard microbiological techniques and antimicrobial susceptibility testing was done as per CLSI guidelines. Results: In the present study burn injury was highest in the age group 20-30 yrs (42%). Female to male ratio was 1.4:1 Among the 120 samples, single organism was isolated in 64% samples and mixed organism in 26% and no growth in 12%. Among the single isolates A.baumannii was leading (28%) followed by Ps.aeruginosa (18%), K. pneumoniae (14%) and S.aureus (12%). Among mixed growth Ps.aeruginosa + A.baumanni (42%) and K.pneumoniae + Bacteriodes fragilis (36%) were leading combination of organism seen. There was time related changes in bacterial isolation from burn wound during hospital stay of patients. On admission 52% of the isolated organisms were S.aureus, only 18% of CoNS and 10% E. coli. These findings were gradually changing with time and on day 21 S.aureus were only 6% whereas A.baumannii was isolated in 28% and Ps.aeruginosa were isolated in 18%. Antimicrobial sensitivity test showed that Ps. aeruginosa and A.baumannii was highly resistant to antimicrobial agents. Conclusion: It is crucial for every burn institution to determine the specific pattern of a burn wound microbial colonization, the timerelated changes in dominant flora, and the antimicrobial sensitivity profiles so that hospital stay can be shortened thereby improving overall infection related morbidity and mortality.