Evaluation of Antibiotics Pattern of Extended Spectrum Beta-Lactamase Producing Multi-Drug Resistant Pseudomonas aeruginosa
Abstract
Background: Pseudomonas aeruginosa (Ps. aeruginosa) is considered as an opportunistic pathogen and the leading cause of morbidity and mortality in immunocompromised individuals. Globally, approximately 10-15% of the nosocomial infections are caused by Ps. aeruginosa. The Ps. aeruginosa can acquire resistance against broad-spectrum antibiotics. According to recent studies increased mortality has been observed due to infection with extended-spectrum-beta-lactamase (ESBL) producing Ps. aeruginosa strains. This study was designed to determined antibiogram of ESBL producing multi-drug resistant Ps. aeruginosa in Khyber Pakhtunkhwa.
Methods: The clinical confirmed Ps. aeruginosa samples were collected according to the standard protocol, at Khyber Teaching Hospital (KTH), Peshawar. All collected samples were sub- cultured on appropriate culture media. After isolation and identification, the antibiotics susceptibility testing was performed. The detection of ESBL was carried out by the double-disc diffusion method. Carbapenemase-producing bacteria was confirmed by the modified Hodge test. Descriptive analysis was performed for statistical analysis of collected data.
Results: A total of one hundred and sixty-two (n=162) Ps. aeruginosa confirmed isolates were collected, in which 59.3% were male and 40.7% were from female patients. The percentages of ESBL and carbapenemase producing Ps. aeruginosa isolates were 5.5% and 23.5%, respectively. The multidrug resistance was observed against 27.2% isolates. Among tested antibiotics highest percentages of resistance was observed against ciprofloxacin (43%) and ceftazidime (39.5%).
Conclusion: We observed highest level of drug resistance in Ps. aeruginosa clinical isolates against tested antibiotics and majority of the isolates were Multi-drug resistant (MDR).
Keywords: Pseudomonas; Multi-Drug Resistant; Extended Spectrum Beta Lactamases; Antibiotics Susceptibility
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