[Microbiologic spectrum and susceptibility of bacteria isolated from patients with intra-abdominal infection]

the analyzed peritoneal fluid and bile specimens were comparable. Multiple bacterial species were significantly more common in bile isolates than in peritoneal fluid isolates. A total of 61,7% of aerobic Gram-negative bacillus isolates obtained from peritoneal fluid and bile produced ESBL. The proportions of vancomycin-resistant enterococci (VRE) and enterococci exhibiting high-level aminoglycoside resistance (HLAR) were 32,6% and 43,5%, respectively. Ertapenem-resistant K. pneumoniae was detected in 22,2% of peritoneal fluid cultures and 71,4% of biliary cultures. Methicillin resistance was detected in 85,7% of staphylococcal isolates. The proportion of anaerobes detected in peritoneal fluids was relatively high at approximately 17% and included predominantly Gram- negative species. All Gram-negative anaerobes showed resistance to benzylpenicillin. Conclusions: Etiologies and susceptibility pattern of IAls must be monitored on a ward, hospital, regional, and world-wide scale and the findings implemented into epidemiologic surveillance programs and proposed treatment protocols.