Cardiovascular Safety of Hydroxychloroquine in US Veterans With Rheumatoid Arthritis

Abstract

Our findings indicate that the incidence of long QT syndrome and arrhythmia-related hospitalization is low in patients with RA during the first year after the initiation of HCQ or another nonbiologic DMARD. We found no evidence that HCQ therapy is associated with a higher risk of adverse cardiovascular events or death.