Abstract
BackgroundMultidrug resistance in Acinetobacter baumannii is constantly on the rise. There has also been an increase in the morbidity and mortality of patients with infection by the same pathogen.AimThis study aimed to assess the patterns of antibiotic resistance exhibited by various clinical isolates of Acinetobacter baumannii, examine the risk factors associated, and investigate the prevalence of co-infecting pathogens and the clinical outcomes of the patients.Study DesignRetrospective cross-sectional study.Patients and MethodsReports of 100 isolates of Acinetobacter baumannii obtained from patients admitted in two tertiary hospitals were used for the study. Identification and determination of antibiotic resistance patterns were done using Vitek2. The presence of probable risk factors was noted. The pattern of clinical outcomes of the patients and the prevalence of co-infecting pathogens were analyzed. Data analysis was done using descriptive statistics.ResultsMore than 50% of isolates showed resistance independently to imipenem and meropenem. Higher rates of susceptibility were observed with tigecycline (55%). Isolates obtained from patients in the intensive care unit (ICU) showed resistance to a more number of antibiotics than those in the wards and operation theatre. Seventeen percent of the isolates were associated with a co-infecting pathogen such as Pseudomonas, Enterococcus, Klebsiella, 87% of the patients were discharged, 12% expired, and 1% were shifted. A positive correlation was found between the duration of hospital stay and number of antibiotics to which the isolate was resistant.ConclusionMultidrug resistance in Acinetobacter baumannii continues to be a menace. In this study, a large number of isolates exhibited resistance to carbapenems such as imipenem, meropenem, and ertapenem, thereby signifying the need for further research and the use of other antibiotics such as tigecycline, to which higher susceptibility was observed.
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