Abstract 17320: Use of Angiotensin Converting Enzyme Inhibitors and Angiotensin Receptor Blockers and Clinical Outcomes in COVID-19
Introduction: COVID-19 is caused by infection with SARS-CoV2 which uses ACE2 as its host receptor. RAS inhibitors such as ACE-inhibitors and ARBs (ACEI/ARB) may increase ACE2 levels. ACE2 levels may also have a lung protective role in ARDS. There is concern over the safety of using these medications in patients with COVID-19. Hypothesis: To characterize the association of a history of ACEI/ARB use by hospitalized patients with COVID-19 and with in-hospital outcomes. Methods: The Michigan Medicine Covid-19 Cohort (M 2 C 2 ) is an ongoing prospective observational study in which detailed clinical, laboratory and outcomes data were collected from chart review of consecutive adult patients hospitalized for COVID-19. Patients who were positive for SARS-CoV-2 infection but without symptoms of COVID-19 were not included in this cohort. We identified 490 patients admitted between March 1 st and May 1 st for COVID-19, of whom all 490 had data on whether they took ACEI/ARB prior to hospitalization. We examined the association between ACEI/ARB use and all-cause death, respiratory failure and acute kidney injury (AKI) during their hospitalization. Results: 175 (35.7%) patients were taking ACEI/ARB prior to hospitalization (ACEI/ARB group; mean age 63.6 [SD 13.9]; 64% men) and 315 (64.3%) were not taking ACEI/ARB (non-ACEI/ARB group; median age 58.6 [SD 16.1]; 54.3% men). The risk of developing ARDS was not significantly different between the ACEI/ARB group and non-ACEI/ARB group (47.4% vs 43.5%, p-value 0.53) and neither was the risk death (15.4% vs 16.8%, p-value 0.97), despite a higher prevalence of comorbidities in the ACEI/ARB group including hypertension (96.6% vs 51.4%, p-value <0.001), diabetes mellitus (58.9% vs 34.6%, p-value <0.001), coronary artery disease (22.9% vs 11.4%, p-value 0.002), CHF (16.0% vs 12.1%, p-value 0.26), and CKD (32.0% vs 13.7%, p-value <0.001). Conclusions: Among hospitalized patients with COVID-19, prior to hospitalization use ACEI/ARB was not associated with significantly different risk of ARDS or mortality despite having higher rates of comorbidities in the ACEI/ARB group.