Radiation Therapy Reprograms Heart Cells to Younger State, Repairing Life-Threatening Arrhythmias

New research by scientists at Washington University School of Medicine in St. Louis suggests that noninvasive radiotherapy, which is typically used to treat cancer, can reprogram heart muscle cells to a younger and perhaps healthier state, fixing electrical problems that cause life-threatening arrhythmia without the need to resort to the long-used invasive procedure of catheter ablation.