Cardiovascular disease after COVID-19 infection in elderly patients. Results of annual follow-up of a cohort of survivors

ABSTRACT

Introduction: Although the effects of SARS-CoV-2 infection on the cardiovascular system are well known in the acute phase, the cardiovascular impact in the elderly population surviving respiratory COVID-19 infection after 1-year follow-up has not been sufficiently studied. Methods: Observational registry of 240 elderly patients (75 years or older) consecutively admitted for and surviving COVID-19 respiratory infection between March 1 and April 30, 2020. The incidence of major cardiovascular events [MACE] (cardiovascular death [CD], acute coronary syndrome [ACS], cerebrovascular disease [CVD], venous thromboembolic disease [VTE], and heart failure [HF]) was prospectively analyzed. Results: The mean age was 83.8 ± 5.6 years (range 75-103 years). A total of 54.2% were women. Most patients had a personal history of cardiovascular risk factors hypertension (83.3%), diabetes mellitus (27.9%), dyslipidemia (43.8%). Among the main cardiological comorbidities, a history of atrial fibrillation was the most frequent (18.8%). Of note was the high percentage of institutionalized patients (37.1%) and those with moderate-severe dementia (16.7%). After a mean follow-up of 352.2±70.4 days, 13.8% of patients died and 9.6% had MACE, the most frequent being heart failure (7.5%), with no differences in the severity or overall evolution of the acute disease. Of the 33 patients who developed HF, only 3 died of cardiovascular causes. Only 2 patients suffered a stroke, in both cases without a history of AF or anticoagulants. Only 2 patients had a thromboembolic event (0.8%). The low incidence of thrombotic events may be due in part to the high rate of anticoagulation and chronic antiplatelet therapy and the high percentage of prophylactic heparin prescription at discharge, as well as the fact that only cases with clinical repercussions. COPD, CKD, institutionalization and moderate-severe dementia are associated with an increased risk of MACE, although only COPD and prescription of loop diuretics were identified as independent risk markers in the multivariate analysis. Conclusions: In elderly COVID-19 survivors, the incidence of MACE after one year of follow-up is high, the main manifestation being heart failure. COPD and the prescription of loop diuretics were identified as independent risk markers for the development of MACE in the multivariate analysis. Baseline clinical characteristics Cox survival analysis.Predictors of MACE.