WEDNESDAY, Feb. 10, 2021 (HealthDay News) — There seems to be a causal relationship between increased blood pressure (BP) and a higher risk for atrial fibrillation (AF), according to a study published online Feb. 9 in the European Journal of Preventive Cardiology. Georgios Georgiopoulos, M.D., Ph.D., from King’s College London, and colleagues used Mendelian randomization...