• Acta clinica Croatica · Apr 2023

    Comparative Study

    COMPARISON OF TRACHEAL ASPIRATES IN THE PERIOD BEFORE AND AFTER THE START OF THE COVID-19 PANDEMIC IN THE INTENSIVE CARE UNIT IN A TERTIARY HOSPITAL.

    • Ivana Jakić, Ines Tamaš, Maja Bogdan, Alan Sminderovac, Ivana Gugić Madunović, Mislav Gugić, and Slavica Kvolik.
    • Osijek University Hospital, Osijek, Croatia.
    • Acta Clin Croat. 2023 Apr 1; 62 (Suppl1): 758475-84.

    AbstractChanges in working methods and diagnostics using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF) diagnostics that occurred after the start of the COVID-19 pandemic could show differences in the prevalence of positive microbiological samples. In a retrospective study, a total of 442 tracheal aspirates in the pre-pandemic period (Period A, 2018, 198 patients, age median 69 (57-78)) and 277 samples in the pandemic period (Period B, 2021, 147 patients, age 68 (56-77) (p=0.585) obtained after the start of the pandemic were analyzed. A total of 176 patients had at least 1 positive result. In Period A, there were 245 (55%) and in Period B 186 (68%) sterile samples (p=0.001). The most frequently isolated pathogens were Acinetobacter baumannii in 86 patients from Period A and 32 patients from Period B, i.e., 43% vs. 21.7% of all positive isolates (p=0.247), followed by Pseudomonas aeruginosa in 29 patients in Period A (14.6%) vs. 7 (3%) (p=0.112) in Period B. A statistically significant increase was observed in the incidence of Enterobacterales (16.6% vs. 32.6%, p=0.002), especially Klebsiellae spp. Although overall mortality decreased in Period B, changes in the working methods and diagnostics did not result in changes in the mortality of patients whose tracheal aspirates were sampled.Sestre Milosrdnice University Hospital.

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