the nosocomial infections, caused by multi-drug resistant bacteria, are the most important cause of mortality throughout the world. one important mechanism against beta-lactam antibiotics is the production of beta-lactamases. enterobacteriaceae and non-fermentative bacteria, like pseudomonas aeruginosa and acinetobacter baumannnii may produce these enzymes. currently, there is no vaccine to pre...

conclusions with regards to the continuous changing in causative microorganisms isolated from patients with uti and antibiotic sensitivity patterns, it is recommended that bacterial sensitivity patterns in populations are determined in any region annually. . objectives this study aimed to detect and also compare the frequency and drug resistance pattern of gram negative bacteria isolated from p...

conclusions our findings implied that a wide range of bacteria could be involved in creating urinary tract infection in patients referred to a medical laboratory of kashani and hajar hospital in shahrekord, iran. regardless of age, sex and the use of catheter, a wide range of bacteria could be involved in urinary tract infections. patients and methods in this cross-sectional study 147 urine sam...

background and objectives: non-fementer gram-negative bacilli (nfgb) are ubiquitous pathogen that has emerged as a major cause of health care associated infections. the aim of this study was to determine the prevalence and antimicrobial susceptibility of   nfgb in an iranian hospital. materials and methods: fromjuly 2005 to november 2006 a total of 257 strains of nfgb including 109 (42.41%) str...

conclusions our results showed the rate of effects of different risk factors on imipenem resistance. regarding the studied risk factors, appropriate programs must be set in place to control and prevent imipenem resistance in gram-negative bacteria. results of the 374 isolated, 134 were imipenem resistant, and 240 were sensitive to imipenem. the resistance rate was more common in males and in pa...

conclusions the study showed that hais were more frequent in elderly population predominately with respect to vap and infections by gram-negative pathogens. overall mortally was greater in the elderly group although the odds ratio for death was higher in younger patients and increased with every hai diagnosed. patients and methods retrospective analysis of all hospital-acquired infections (hais...

background the rapid emergence of antibiotic resistance, especially broad-spectrum antibiotics, resulted in the avid use of new potent antibiotics. ceftriaxone and ceftazidime, two third-generation cephalosporin, are usually used to manage complicated and uncomplicated infections. the use of cefepime in resistant infections is increasing gradually, which put this potent antibiotic at risk of re...

conclusion although all esbl producer gram-negative bacteria were sensitive to imipenem, piperacillin-tazobactam, and colistin, non-esbl isolates showed resistant pattern. interestingly, notable percent of mentioned resistant isolates were sensitive to nitrofurantoin. background resistance in enteric gram-negative bacteria is of a great concern and concise local data are lacking. objectives to ...

background and objectives: anaerobic bacteria are recognized as important pathogens in surgical infections. however, they are the most overlooked microorganisms by the clinic and the laboratory because of the tedious culture techniques with longer turn-around times. the study was aimed to analyze the frequency of anaerobic bacterial surgical infections and their predisposing factors. materials ...

background and aims. bacterial contamination of dental unit water supplies (duws) has attracted a lot of attention in recent years due to the emergence of serious infections in susceptible dental patients. the aim of the present study was to evaluate the presence of gram-negative bacterial contamination in duws at tabriz university of medical sciences faculty of dentistry. materials and methods...