• A V Talko, V A Nevzorova, V S Dubov, N S Muzychenko, E R Gurbanov, S K Dubov, S N Beniova, and A I Simakova.
• Regional Clinical Hospital №2.
• Terapevt Arkh. 2023 Sep 29; 95 (7): 537542537-542.

AimTo assess the characteristics of the course of coronavirus infection COVID-19 and to determine the risk factors for adverse events in patients of the regional hematological center.Materials And MethodsAs part of an observational prospective cohort study, data from 144 medical records of patients in Primorsky Krai with hematological diseases and COVID-19 were analyzed. The data of the developed standardized questionnaire of the CHRONOS19 study were used. The primary endpoint (adverse outcome) was a composite point that included mortality from any cause during the observation period, development of acute respiratory distress syndrome, hospitalization in the intensive care unit, and the need for mechanical ventilation.ResultsA study of the features of the course of COVID-19 in hematological patients showed an increase in the number of adverse events in patients with neoplastic blood diseases, especially in chronic lymphoproliferative diseases and acute myeloid leukemia. Significant predictors of an unfavorable course of COVID-19 include a refractory/recurrent variant of the course of a blood tumor, glucocorticoid therapy as part of the protocol for the treatment of the underlying disease, stage 3-4 lung damage according to computerised tomography scans at the onset of COVID-19, and the presence of diabetes mellitus.ConclusionPredictors of an unfavorable course of COVID-19 in hematological patients have been identified. Hematological patients in the context of the COVID-19 pandemic require a coordinated interdisciplinary approach involving hematologists and therapists, careful monitoring of clinical and laboratory parameters to reduce the risk of adverse events.

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