COVID-19 in-hospital mortality and mode of death in a dynamic and non-restricted tertiary care model in Germany

Abstract Background Reported mortality of hospitalised COVID-19 patients varies substantially, particularly in critically ill patients. So far COVID-19 in-hospital mortality and modes of death under optimised care conditions have not been systematically studied.Methods This retrospective observational monocenter cohort study was performed after implementation of a non-restricted, dynamic tertiary care model at the University Medical Center Freiburg, an experienced ARDS and ECMO referral center. All hospitalised patients with PCR-confirmed SARS-CoV-2 infection were included. The primary endpoint was in-hospital mortality, secondary endpoints included major complications and modes of death. A multistate analysis and a Cox regression analysis for competing risk models were performed. Modes of death were determined by two independent reviewers.Results Between February 25, and May 8, 213 patients were included in the analysis. The median age was 65 years, 129 patients (61%) were male. 70 patients (33%) were admitted to the intensive care unit (ICU), of which 57 patients (81%) received mechanical ventilation and 23 patients (33%) extracorporeal membrane-oxygenation (ECMO) support. According to the multistate model the probability to die within 90 days after COVID-19 onset was 24% in the whole cohort. If the levels of care at time of study entry were accounted for, the probabilities to die were 16% if the patient was initially on a regular ward, 47% if in the ICU and 57% if mechanical ventilation was required at study entry. Age ≥65 years and male sex were predictors for in-hospital death. Predominant complications – as judged by two independent reviewers – determining modes of death were multi-organ failure, septic shock and thromboembolic and hemorrhagic complications.Conclusion In a dynamic care model COVID-19-related in-hospital mortality remained substantial. In the absence of potent antiviral agents, strategies to alleviate or prevent the identified complications should be investigated. In this context, multistate analyses enable comparison of models-of-care and treatment strategies and allow estimation and allocation of health care resources.Registration German Clinical Trials Register (identifier DRKS00021775), retrospectively registered June 10, 2020..

Medienart:

Preprint

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

bioRxiv.org - (2021) vom: 21. Jan. Zur Gesamtaufnahme - year:2021

Sprache:

Englisch

Beteiligte Personen:

Rieg, Siegbert [VerfasserIn]
Cube, Maja von [VerfasserIn]
Kalbhenn, Johannes [VerfasserIn]
Utzolino, Stefan [VerfasserIn]
Pernice, Katharina [VerfasserIn]
Bechet, Lena [VerfasserIn]
Baur, Johanna [VerfasserIn]
Lang, Corinna N. [VerfasserIn]
Wagner, Dirk [VerfasserIn]
Wolkewitz, Martin [VerfasserIn]
Kern, Winfried V. [VerfasserIn]
Biever, Paul [VerfasserIn]

Links:

Volltext [kostenfrei]

doi:

10.1101/2020.07.22.20160127

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI01841897X