This study was conducted to determine the incidence of
Pseudomonas aeruginosa infections among
burn patients at Tohid Hospital, Iran. A total of 176 clinical specimens were obtained from 145
burn patients admitted to the burn unit of Tohid Hospital to detect the presence of P. aeruginosa. Antimicrobial susceptibility testing was conducted to detect extended spectrum
beta-lactamase (ESBL) producing P. aeruginiosa using Clinical and Laboratory Standards Institute guidelines with the double disc synergy test (DDST). A polymerase chain reaction was used to detect PER-1 and
OXA-10 among the isolates. The mean age, total body surface area and length of
hospital stay among patients were 29 years, 37.7%, and 10 days, respectively.
Kerosene was the commonest cause of
burn (60%), followed by gas (30%). During the study, P. aeruginosa was detected in 100 isolates. The
antibiotics they were most commonly resistant to were
cefotaxime,
ceftriaxone and
ciprofloxacin. Of the 100 P. aeroginusa isolates, 28% were positive for ESBL production with the DDST, 48% and 52% were PER-1 and
OXA-10 producers, respectively. The high frequency of PER-1 and
OXA-10 producers at this hospital is of concern considering their potential spread among
burn patients.