Unpredictable effects of cancer radiotherapy on cardiac devices prompts call to action

Radiotherapy in cancer patients with modern cardiac implantable electronic devices (CIEDs) appears safe but can prompt some devices to switch into a fallback mode even if the radiation is far from the device, a small study shows. “We really need to check them after every RT, even if it’s like 40 times, because the effect is not predictable,” lead investigator Dr Julia Vogler (University Heart Centre Hamburg, Germany) told Medscape.