The Prevalence of Multi-Resistant Pseudomonas aeruginosa and Acinetobacter spp. in Patients Addmited in Baqiyatallah Hospital in 2005

The purpose of this study was to investigate the prevalence of multi-resistant Pseudomonas aeruginosa and Acinetobacter spp. in Patients admitted in baqiyatallah hospital in 2005. Malenals &

The study was conducted prospectively during a period of 12 months from March to February 2005 in Baqyiatallah hospital in Tehran, Iran. All patients who were hospitalized with no signs and symptoms of infection before the first 48 hours of hospitalization and presenting signs and symptoms of infection after 48 hours of hospitalization were included in this study. Bacterial strains were isolated from various clinical samples of patients and identified as Pseudomonas aeruginosa and Acinetobacter spp by the conventional methods.

The prevalence of multi-resistant Pseudomonas aeruginosa during the study current was 1.3%.The most infections were belonged to intensive care unit (ICU). Among 278 MDR isolates, 58(20.8%) and 35(12.6%) strains were belonged to Pseudomonas auroginosa and Acinetobacter spp respectively. The most MDR microorganisms were isolated from samples obtained from lower respiratory tract (53.8%) and wounds (19.3%).

Isolation rate of MDR Pseudomonas auroginosa and Acinetobacter spp in current study was lower than those reported by other researchers however, the most prevalence of infections was observed in ICU and in patients with more than 50 year of ages. It is necessary to study the causes of nosocomial infections and development of preventative strategies in order to prevent the spread of nosocomial infections.