Doctors are testing how zaps of radiation normally reserved for cancer can heal life-threatening irregular heartbeats. The experimental procedure has seen some success, and a study is about to get underway to tell if it works well enough for routine use.
In this photo provided by Washington University, Jeff Backus is fitted with a vest of electrodes in St. Louis on Tuesday, Feb. 7, 2023, to map how his heartbeat goes awry. Doctors are zapping the heart with radiation normally reserved for cancer, a bid to better treat people with life-threatening irregular heartbeats who've exhausted other options. In this photo provided by Washington University, Jeff Backus is fitted with a vest of electrodes in St. Louis on Tuesday, Feb.
While it’s highly experimental, surprising early research suggests it may reprogram misfiring heart cells to control heartbeats more like younger, healthier cells do. An irregular heartbeat called ventricular tachycardia is a major cause of sudden cardiac arrest, blamed for about 300,000 U.S. deaths a year. Treating it with radiation is a radical approach — cancer doctors are trained to avoid radiating the heart at all costs for fear of collateral damage.
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