Background: We sought to determine if there was a difference in the longitudinal inflammatory response measured by white blood cell count (WBC), C-reactive protein (CRP), procalcitonin (PCT), and ferritin levels between the first and the second COVID-19 wave of ICU patients. Methods: In a single-center retrospective observational study, ICU patients were enrolled during the first and second waves of the COVID-19 pandemic. Data were collected on patient demographics, comorbidities, laboratory results, management strategies, and complications during the ICU stay. The inflammatory response was evaluated using WBC count, CRP, PCT, and Ferritin levels on the day of admission until Day 28, respectively. Organ dysfunction was measured by the SOFA score. Results: 65 patients were admitted during the first and 113 patients during the second wave. WBC and ferritin levels were higher in the second wave. CRP and PCT showed markedly different longitudinal kinetics up until day 28 of ICU stay between the first and second wave, with significantly lower levels in the second wave. Steroid and immunomodulatory therapy use was significantly greater in the second wave. Mortality was similar in both waves. Conclusions: We found that there was a significantly reduced inflammatory response in the second wave, which is likely to be attributable to the more widespread use of immunomodulatory therapies.
【저자키워드】 Corticosteroid, COVID-19, immunomodulation, C-reactive protein, procalcitonin, 【초록키워드】 COVID-19 pandemic, Comorbidities, CRP, ICU, Laboratory results, White blood cell, management, Patient, Complication, second wave, ICU Patients, WBC, Admission, immunomodulatory therapy, retrospective, Inflammatory response, steroid, Immunomodulatory therapies, demographics, SOFA score, dysfunction, single-center, significantly lower, widespread, PCT, ICU patient, was measured, greater, enrolled, collected, significantly, evaluated, Day, reduced, determine, 113 patient, ferritin level, 【제목키워드】 Kinetics, Wave, second, difference,