Antibiotic regimens tailored by clinical pharmacist supported by intensivist enhance rational use of antibiotics

Abstract

ABSTRACT Background High antibiotics utility rates have been observed in surgical intensive care units (SICU). The present study was performed to evaluate the effect of engaging a clinical pharmacist in SICU on rational use of antibiotic treatment. Methods This retrospective quasi-experimental experiment involved 505 patients, over a period of one year, admitted to emergency department surgical/trauma ICU of a large tertiary care hospital. Before and during pharmacist participation periods of six months, 226 and 153 patients, respectively, are compared. Results Antibiotics consumption pattern changed with a decrease in total antibiotic consumption from 101.42 to 94.1 Defined Daily Dose/100 patients’ days after the clinical pharmacist participation, in addition to, a statistically significant rise (p = 0.001) in percentage of appropriateness of the prescribed antibiotic therapy from 72.1% to 86.3%. Time to control infection (days) was not statistically different (p = 0.825) in both periods. The average ICU days of stay was statistically significant longer (p = 0.046) during pharmacist attendance (4.42 ± 5.61) in comparison with period without pharmacist attendance (3.31 ± 3.66). The difference in ICU mortality rate was not statistically significance (p = 0.217). Cost per stay increased by 65% during pharmacist intervention period. Conclusions Antibiotic management with pharmacist participation as a part of multidisciplinary team with intensivist can promote rate of the appropriateness of the prescribed antibiotic therapy, lower utility of antibiotic consumption, but with a longer ICU stay, no mortality reduction, and higher expenses per stay. Trial Registry ClinicalTrials.gov: NCT04931914.