Introduction: This study aims to identify the microorganism species isolated from blood cultures of patients hospitalized in the ICU of a tertiary center before and during the COVID-19 pandemic and to investigate their antibiotic susceptibility. Material and Methods: Patients hospitalized in the ICU two years before and after the COVID-19 pandemic between March 15, 2019, and March 15, 2021, were divided into two groups, and their blood cultures were evaluated retrospectively. Isolated microorganisms and their antibiotic susceptibility were analyzed. Results: A total of 1282 patients' blood cultures were analyzed, and demographic data were similar between groups. Blood culture growth was detected in 39.6% (n=202) of the patients in the pre-pandemic period and 41% (n=317) in the pandemic period. Gram-positive bacteria were isolated in 71.3%, gram-negative bacteria in 21.6%, and Candida spp. in 7.1% of the population. Klebsiella spp. was significantly higher, and Enterococcus spp. was significantly lower in blood cultures during the pandemic. In the COVID-19 period, although not significant, a decrease in antibiotic susceptibility was detected for Staphylococcus aureus, Klebsiella spp., E.coli, Enterobacter spp. and Pseudomonas spp. There was a statistically significant decrease in susceptibility to teicoplanin and linezolid in coagulase-negative staphylococci (CNS). During the pandemic, 57.6% (n=172) of the patients were positive for COVID-19. In COVID-19-positive patients, while Candida spp. was significantly higher, no decrease in antifungal susceptibility was detected. Conclusion: During the pandemic, antibiotic susceptibility to gram-positive and gram-negative microorganisms decreased. Although there was a significant increase in Candida spp. rates in COVID-19-positive patients, there was no decrease in their antifungal susceptibility.

Aim: Drug intoxications and drug uses are public health problems and an important reason for patient admission to emergency departments and intensive care units (ICU).This study aims to evaluate the demographic and clinical data of acute drug intoxications and drug use. Methods: Patients followed up in the ICU for acute drug intoxications and drug use between January 2014 and January 2020 were evaluated retrospectively. Results: A total of 194 patients were included in the study, including 168 drug intoxication and 26 drug use. While 59.5% of drug intoxications were female, the mean age was 27.8±8.3 years, 92.3% of drug use was male, and the mean age was 26.5±3.8 years. While the mean duration of stay in the ICU was 2.3±1.2 days for drug intoxications, it was 2.8±1.9 days for drug use. The highest rate of drug intoxication was between the ages of 17-30, and 98.8% of them were suicidal. Most of the intoxications (61.9%) occurred with multiple drugs, most commonly with analgesics (40.4%) and antidepressants (34.5%). The mortality rate of drug intoxication was 0.6%, and the mortality rate of drug users was 11.5%. While male gender and mechanical ventilation (Mv) requirement were significantly higher in drug use, Glasgow coma scale (GCS) scores at discharge and hospitalization were significantly lower (p