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Surgical site infections are most common nosocomial infection and are associated with prolonged hospital stay, health care cost, morbidity and mortality. The causative agents involved in SSI’s may vary with geographical location, between surgeons, various procedures and from hospital to hospital. The present study was done to determine the aerobic bacterial flora from surgical site infections and their antimicrobial resistance pattern. A total of 50 culture positive samples obtained from SSI’s were included in this study. Isolates were identified by standard biochemical methods and their antimicrobial resistance pattern was determined by Kirby Bauer Disk Diffusion method. Among the total 65 isolates obtained, Gram negative bacilli 45/65 (69.23%) were the most common isolate. The most predominant organism isolated were E. coli (24.62%) followed by Klebsiella spp (21.54%), Proteus spp (12.31%) and Pseudomonas spp (10.77%). Among the Gram positive organism isolated, (21.54%) were Staphylococcus aureus followed by Enterococcus spp (7.70%) and Coagulase negative Staphylococcus (1.54%). All isolates of Gram negative bacilli showed sensitivity to Imipenem. The most effective drug against gram positive organism was found to be Linezolid. For effective control of wound infection, knowledge of causative organisms, their antibiotic sensitivity patterns and administration of judicious therapy are necessary. | Aerobic bacteriological profile of surgical site infection and their antimicrobial resistance pattern at a Tertiary care hospital
