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- M L Zubkin, N F Frolova, I G Kim, A I Ushakova, S S Usatiuk, R T Iskhakov, E N Diakova, V I Chervinko, E V Volodina, N A Tomilina, and E V Kryukov.
- Moscow City Clinical Hospital №52.
- Terapevt Arkh. 2021 Nov 15; 93 (11): 1325-1333.
BackgroundPresent concepts of the novel coronavirus infection prognosis in haemodialysis (HD) patients are rather controversial. There is little information on therapy efficiency and safety in such patients. We studied COVID-19 course specifics, prognostic factors associated with fatal outcomes, therapy efficiency and its transformation at different stages of the pandemic first year.Materials And MethodsSingle-centre retrospective uncontrolled study included 653 COVID-19 HD-patients treated at Moscow City Nephrology Centre from April 1 to December 31, 2020.ResultsThis period mortality rate was 21.0%. Independent predictors of COVID-19 unfavourable outcome in HD patients were pulmonary lesion extension (CT grades 34), high comorbidity index, and mechanical ventilation. Approaches to COVID-19 treatment modified significantly at different periods. Immunomodulatory drugs (monoclonal antibodies to IL-6, corticosteroids) were used largely at later stages. With tocilizumab administration, mortality was 15.1%, tocilizumab together with dexamethasone 13.3%; without them 37.8% (р0,001). Tocilizumab administration in the first 3 days after hospitalization of patients with CT grades 12 was associated with more favourable outcomes: 1 out of 29 died vs 6 out of 20 (tocilizumab administered at later periods); p0.04. There was no significant difference in death frequency in patients with CT grades 34 depending on tocilizumab administration time.ConclusionCOVID-19 in HD patients can manifest in a severe course with unfavourable outcome. It is urgent to identify reliable disease outcome predictors and develop efficient treatment in this population.
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