Changes in antihypertensive treatment in surviving patients SARS-CoV-2 respiratory infection and its cardiovascular impact after one year of follow-up

ABSTRACT

Introduction: The management of antihypertensive drugs and especially ACEI/ARA2 during the first wave of the SARS-CoV-2 pandemic was a matter of debate. The change in antihypertensive treatment during the pandemic and its repercussions have not been sufficiently studied. Methods: Observational and prospective study that analyzed consecutive patients admitted for respiratory infection and positive polymerase chain reaction (PCR) between March 1 and April 30, 2020. During the period analyzed, 921 patients were registered, of whom 673 patients were discharged;among them 359 were patients with a diagnosis of arterial hypertension and pharmacological treatment. These patients were followed up in days, from the time of discharge to data analysis, with a mean of 352±70.4 days. Results: The mean age was 74.4±12.9 years, and 50.7% were male. A total of 28.7% were diabetic patients, 49% were dyslipidemic, 17.8% were smokers, and 19.8% were obese. Of the patients analyzed, 13.4% had a previous diagnosis of ischemic heart disease, a similar percentage, 13.1% had heart failure, and 13.6% had atrial fibrillation. The antihypertensive drugs analyzed were ACE inhibitors (angiotensin-converting enzyme inhibitors), ARA-2 (angiotensin II receptor antagonists), calcium antagonists, thiazide diuretics, loop diuretics, aldosterone antagonists, beta-blockers and alpha-blockers. At discharge, 75.8% of the patients maintained their antihypertensive treatment, and the remaining 24.2% were modified. Prior to admission, 77.2% were taking ACE inhibitors or ARA-2;however, in 16.4% of the patients they were discontinued after admission. In contrast, treatment with calcium antagonists increased from 27.6% to 34.1% after hospitalization. In both cases there were statistically significant differences in the bivariate analysis in the McNemar test (p < 0.05 in both cases), with no differences in the other antihypertensive drugs analyzed. After follow-up, the combined event occurred in 28 patients, with the most frequent event being the development of HF;in contrast, only 0.8% presented ACS. Overall mortality was 8.9%. Picture 1 shows the events recorded according to the change in antihypertensive treatment and the maintenance or discontinuation of ACEI/ARA-2 in those patients who were already taking it on admission. Similarly, a survival analysis was performed in which no differences were observed in terms of all-cause mortality or major cardiovascular events between patients who maintained their antihypertensive treatment and those who modified it. Conclusions: In the population surviving SARS-CoV-2 respiratory infection, maintaining or discontinuing treatment with ACEI/ARA-2 did not influence mortality or the appearance of major cardiovascular events after the first year of follow-up. (Table Presented).