Young Adults with Early-Onset Atrial Fibrillation Face Higher Long

Denmark: A new study has found that adults aged 18 to 45 who develop atrial fibrillation (AF) without any existing cardiovascular disease face significantly higher long-term risks of stroke, heart failure , and death. The research, published in Heart Rhythm by Anders Holt and colleagues from the Department of Cardiology at Copenhagen University Hospital – Herlev and Gentofte, emphasizes that early-onset AF should not be considered benign, even in otherwise healthy young adults. The study analyzed nationwide registry data, including 7,632 patients diagnosed with AF between 1999 and 2023. All participants were aged 18–45 at diagnosis and had no pre-existing cardiovascular conditions. The median age of the cohort was 39 years, and 71% were men. Comorbidities were low, with only 1.