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Anticoagulation, Bleeding, Mortality, and Pathology in Hospitalized Patients With COVID-19

Nadkarni, GN; Lala, A; Bagiella, E; Chang, HL; Moreno, PR; Pujadas, E; Arvind, V; Bose, S; Charney, AW; Chen, MD; Cordon-Cardo, C; Dunn, AS; Farkouh, ME; Glicksberg, BS; Kia, A; Kohli-Seth, R; Levin, MA; Timsina, P; Zhao, S; Fayad, ZA; Fuster, V

JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
2020
VL / 76 - BP / 1815 - EP / 1826
abstract
BACKGROUND Thromboembolic disease is common in coronavirus disease-2019 (COVID-19). There is limited evidence on the association of in-hospital anticoagulation (AC) with outcomes and postmortem findings. OBJECTIVES The purpose of this study was to examine association of AC with in-hospital outcomes and describe thromboembolic findings on autopsies. METHODS This retrospective analysis examined the association of AC with mortality, intubation, and major bleeding. Subanalyses were also conducted on the association of therapeutic versus prophylactic AC initiated <= 48 h from admission. Thromboembolic disease was contextualized by premortem AC among consecutive autopsies. RESULTS Among 4,389 patients, median age was 65 years with 44% women. Compared with no AC (n = 1,530; 34.9%), therapeutic AC (n = 900; 20.5%) and prophylactic AC (n = 1,959; 44.6%) were associated with lower in-hospital mortality (adjusted hazard ratio [aHR]: 0.53; 95% confidence interval [CI]: 0.45 to 0.62 and aHR: 0.50; 95% CI: 0.45 to 0.57, respectively), and intubation (aHR: 0.69; 95% CI: 0.51 to 0.94 and aHR: 0.72; 95% CI: 0.58 to 0.89, respectively). When initiated <= 48 h from admission, there was no statistically significant difference between therapeutic (n = 766) versus prophylactic AC (n = 1,860) (aHR: 0.86; 95% CI: 0.73 to 1.02; p = 0.08). Overall, 89 patients (2%) had major bleeding adjudicated by clinician review, with 27 of 900(3.0%) on therapeutic, 33 of 1,959(1.7%) on prophylactic, and 29 of 1,530(1.9%) on no AC. Of 26 autopsies, 11 (42%) had thromboembolic disease not clinically suspected and 3 of 11 (27%) were on therapeutic AC. CONCLUSIONS AC was associated with lower mortality and intubation among hospitalized COVID-19 patients. Compared with prophylactic AC, therapeutic AC was associated with lower mortality, although not statistically significant. Autopsies revealed frequent thromboembolic disease. These data may inform trials to determine optimal AC regimens. (C) 2020 Published by Elsevier on behalf of the American College of Cardiology Foundation.
189th Global

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PROYECTO FINANCIADO POR PLAN NACIONAL DE INVESTIGACIÓN AGENCIA ESTATAL DE INVESTIGACIÓN, MINISTERIO DE CIENCIA E INNOVACIÓN. PID2019-109127RB-I00