👉 Dyslysin is a term used in medicine to describe an abnormality or defect in the heart. It refers to the irregular heartbeat that occurs when the heart muscle is not working properly, which can cause symptoms such as shortness of breath and chest pain. Dyslysin can be caused by a variety of conditions, including arrhythmias (irregular heartbeats), mitral valve prolapse (a condition in which the valves of the left and right hearts are damaged or blocked), or