Multi-drug resistant Staphylococcus aureus isolated from emergency ward of an Iranian hospital

作者：Ahmadi Koorosh; Zakeri Hossein; Doloo Hamid Zamani Moghadam; Kakhki Behrang Rezvani; Mohammadshahi Ali; Alavi Moghaddam Mostafa; Hashemian Amir Masoud^*

来源：Tropical Journal of Pharmaceutical Research, 2016, 15(4): 815-819.

DOI：10.4314/tjpr.v15i4.21

• Staphylococcus aureus
• Nocosomial infection
• Antibiotic resistance
• Hospital equipment
• Emergency ward

Purpose: To study the prevalence of resistant strains of S. aureus isolated from surfaces, beds and various equipment of an Iranian hospital emergency ward.
Methods: Two hundred swab samples were collected from the surfaces, beds, trolleys, surgical equipment and diagnostic medical devices in emergency ward. Samples were cultured and those that were S. aureus-positive were confirmed using polymerase chain reaction (PCR). Antimicrobial resistance pattern was analyzed using disk diffusion method.
Results: Nine of 200 samples (4.5 %) collected were positive for S. aureus. Surfaces (8.8 %), beds (5 %) and trolleys (5 %) were the most commonly contaminated. S. aureus isolates exhibited varying levels of resistance against antibiotics with the following being the highest: tetracycline (88.8 %), penicillin (88.8 %) and ampicillin (77.7 %). The prevalence of resistance against methicillin, oxacillin and azithromycin were 44.4, 33.3 and 33.3 %, respectively. There was no pattern of resistance against imipenem.
Conclusion: Efficient disinfection of surfaces, beds, trolleys and surgical instruments should be performed periodically to reduce colonization of resistant strains of S. aureus in various areas of emergency health care centers.

• 出版日期2016-4