Recent Prescribing Trends of Anti- Microbial Agents and their Sensitivity Pattern in an Intensive Care Unit of a Tertiary Care Teaching Hospital
Background: Due to the injudicious and indiscriminate use of Anti-Microbial Agents (AMAs) among hospitalized patients especially in ICUs, it is extremely imperative to monitor and refine the prescribing pattern of antibiotics regularly. Hence an effective surveillance team consisting of a physician, a pharmacologist and a microbiologist should develop and implement an antimicrobial stewardship program based on the local antibiogam to increase the therapeutic benefits and curb the menace of Anti-Microbial Resistance (AMR). Aims:-To study the prescribing pattern of Anti-Microbial Agents and to evaluate the antimicrobial sensitivity pattern of common bacterial isolates in Medical ICU (MICU) of a tertiary care hospital. Methods: After taking approval from the Institutional ethical committee, this prospective observational study was conducted in the department of Pharmacology and Microbiology over a period of six months. Patient records were reviewed and analyzed to assess the prescribing pattern of antibiotics and Culture-sensitivity reports of various specimen from MICU were collected to determine the antibiotic sensitivity pattern. Results: Ceftriaxone (26%) was the most commonly prescribed drug followed by Metronidazole (16%). Fixed drug combinations such as Piperacillin+Tazobactam (14%), Amoxicillin + clavulanic acid (10%) and Cefoperazone + Sulbactam (8%) were also frequently used. The most predominant organism isolated was Klebseilla species (25%) followed by Acenitobacter species (19.4%). Colistin /Imipenem and Vancomycin/Linezolid depicted100% sensitivity for Gram-Negative (GNIs) and Gram-Positive Isolates (GPIs) respectively. Conclusions: The need of the hour is to preserve the power of the almost exhausted antimicrobial armamentarium against the rampantly emerging multidrug resistant organisms.
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