• Gordana Mijović, Lidija Čizmović, Mirjana Nedović Vuković, Siniša Stamatović, and Milena Lopičić.
• 1Institute of Public Health of Montenegro, Podgorica, Montenegro; 2Faculty of Medicine, University of Montenegro, Podgorica, Montenegro; 3Agency for Medicines and Medical Devices of Montenegro, Podgorica, Montenegro; 4Faculty of Science and Mathematics, University of Montenegro, Podgorica, Montenegro.
• Acta Clin Croat. 2020 Sep 1; 59 (3): 469-479.

AbstractInappropriate use of antibiotics leads to an increase in antibiotic resistance. Infections caused by antibiotic-resistant gram-negative bacteria are a serious threat to public health. This study aimed to compare data on inpatient antibiotic consumption with antimicrobial resistance (AMR) rate of Klebsiella pneumoniae and Escherichia coli invasive strains in Montenegro and provide targets for improving antibiotic use. We used the national data on antibiotic consumption from 2009 to 2015, Point Prevalence Survey data on inpatient antibiotic consumption from 2015, and national AMR data on 79 Klebsiella pneumoniae and 68 Escherichia coli isolates collected from 8 hospitals from 2016 to 2018. The most commonly used antibiotics were third-generation cephalosporins with a median annual consumption of 0.66 DDD/1000/day. Ceftriaxone was the most frequently prescribed antibiotic in the treatment of community/hospital acquired infections and surgical/medical prophylaxis. The highest resistance rates were recorded for Klebsiella pneumoniae to ceftriaxone, ceftazidime and gentamicin (93.59%, 90.79% and 89.87%, respectively), and Escherichia coli to aminopenicillins, ceftriaxone and ceftazidime (89.06%, 70.15% and 61.54%, respectively). High consumption of broad-spectrum antibiotics in Montenegro is accompanied by the high rate of resistance of Klebsiella pneumoniae and Escherichia coli to these agents. Antibiotic misuse demands the introduction of an antimicrobial stewardship program in Montenegrin hospitals.

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