Risk of Cardiovascular Events After COVID-19

We aimed to determine absolute and relative risks of either symptomatic or asymptomatic SARS-CoV-2 infection for late cardiovascular (CV) events and all-cause mortality. We conducted a retrospective double cohort study of patients with either symptomatic or asymptomatic SARS-CoV-2 infection (COVID-19+ cohort) and its documented absence (COVID-19- cohort). The study investigators drew a simple random sample of records from all patients under the Oregon Health & Science University Healthcare (n = 65,585), with available COVID-19 test results, performed March 1, 2020 to September 13, 2020. Exclusion criteria were age < 18 years and no established Oregon Health & Science Uni-versity care. The primary outcome was a composite of CV morbidity and mortality. All -cause mortality was the secondary outcome. The study population included 1,355 patients (mean age 48.7 20.5 years; 770 women [57%], 977 White non-Hispanic [72%]; 1,072 ensured [79%]; 563 with CV disease history [42%]). During a median 6 months at risk, the primary composite outcome was observed in 38 of 319 patients who were COVID-19+ (12%) and 65 of 1,036 patients who were COVID-19- (6%). In the Cox regression, adjusted for demographics, health insurance, and reason for COVID-19 testing, SARS-CoV-2 infection was associated with the risk for primary composite outcome (hazard ratio 1.71, 95% confidence interval 1.06 to 2.78, p = 0.029). Inverse probability-weighted estima-tion, conditioned for 31 covariates, showed that for every patient who was COVID-19+, the average time to all-cause death was 65.5 days less than when all these patients were COVID-19-: average treatment effect on the treated -65.5 (95% confidence interval -125.4 to -5.61) days, p = 0.032. In conclusion, either symptomatic or asymptomatic SARS-CoV-2 infection is associated with an increased risk for late CV outcomes and has a causal effect on all-cause mortality in a late post-COVID-19 period. (C) 2022 Elsevier Inc. All rights reserved. (Am J Cardiol 2022;179:102-109)

Automated summary

This study aimed to determine the risks of symptomatic or asymptomatic SARS-CoV-2 infection for late cardiovascular events and all-cause mortality. The findings revealed that SARS-CoV-2 infection was associated with an increased risk of cardiovascular events and had a causal effect on all-cause mortality in the late post-COVID-19 period.