Destroying a small part of the heart with radio waves can dramatically cut the risk of developing a fatal heartbeat in young adults with a special type of heart rhythm, even if they have no symptoms, Italian researchers reported on Wednesday. The rhythm problem, known as Wolff-Parkinson-White syndrome, is caused by extra wiring in the heart. As a result, signals telling the heart to beat may get to the main chambers too soon, which can occasionally lead to sudden death.
