Abstract
Abstract Funding Acknowledgements Type of funding sources: None. Objective To investigate the prevalence of arterial thromboembolic (TE) complications including stroke, peripheral arterial disease (PAD) and myocardial infarction (MI) and mortality among COVID-19 patients admitted to an ICU at a single centre hospital in the area of Klang Valley, Malaysia. The proportions of patients with ATE complication who died, and factors associated with the occurrence of ATE were explored. Methods Patients admitted to a single centre ICU with PCR confirmed of SARS-CoV-2 virus and received adequate thromboprophylaxis within February 2020-2021 were included in this retrospective Malaysian cohort study. ATE event is a combination of ≥1 stroke, PAD and MI. Results Mean (SD) age 56.6 (13.7), 63.5% were male, 61.6% Malays, median (IQR) 7 (3-14) days of ICU admission, 64.2%, 53.2 % and 20.9% had underlying hypertension, diabetes and obesity respectively. Of 534 patients, 21 (3.9%) developed stroke, 39 (7.3%) MI, 1(0.2%) PAD and 22.8% died despite adequate thromboprophylaxis. In total, only 58 (10.9%) developed ATE event during their ICU admission. Significantly higher proportions of COVID-19 patients admitted to ICU who developed complications of stroke (12.3% vs. 1.5; p<0.001) and MI (16.4% vs. 4.6%; p<0.001) died. Age, duration of ICU admission, proportion of underlying hypertension, stroke, IHD, diabetes, kidney disease, troponin, D-Dimer were significantly greater among those with ATE events. Predictors of ATE event on multivariate logistic regression analysis were duration of ICU admission [OR 1.0 (95% CI 1.00-1.04)] and troponin [OR 1.3 (95% CI 1.1-1.4)] level. Conclusion The overall prevalence of ATE complication among the severely ill COVID-19 patients was low (10.9%) with the overall mortality of 22.8% despite adequate thromboprophylaxis. Key predictors of ATE events included increased troponin level and duration of ICU admission. Perhaps a more aggressive preventive strategies can be undertaken to prevent further increase in the prevalence of arterial thromboembolism and death.
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