High Caffeine Consumption Disrupts Heart Rhythms in Middle-aged Rats

New research finds that excess caffeine is more likely to cause irregular heart rhythms in middle aged rats than in young adult rats. The study will be presented this week at the American Physiological Society annual meeting at Experimental Biology 2022 in Philadelphia.

MedStar Health offers the first FDA approved treatment for long-standing, persistent atrial fibrillation

Two MedStar Health hospitals are now offering an FDA-approved treatment for patients who have had persistent atrial fibrillation for more than a year. The Hybrid AF™ Convergent Therapy is available both at MedStar Washington Hospital Center and MedStar Union Memorial Hospital in Baltimore.

Electric Signals Between Individual Cardiac Cells Regulate Heartbeat

In Biophysics Reviews, researchers provide an update on how electrical impulses in the heart travel from cell to cell. The connections between cells forming the low resistance pathway and facilitating the current flow are called gap junctions. Each consists of many channels, which are formed when specific proteins from one cell dock and fuse to the proteins from another cell. The scientists delve into the properties of gap junctions and their constituent proteins.