Stereotactic body radiotherapy for treating lung cancer with a leadless pacemaker: A case report.

Summary: Imagine you need a special, highly focused X-ray treatment (called radiation) to shrink a lung tumor. Now, imagine you also have a tiny, modern pacemaker inside your heart to keep it beating right. In this story, an 81-year-old woman had both. At first, doctors didn't notice her tiny pacemaker on the scans. The original radiation plan would have accidentally hit the pacemaker, which could break it! Luckily, they caught the mistake in time. They changed the angles of the radiation beams to safely treat the cancer while completely missing the pacemaker. This shows why doctors must look very closely at scans to spot these new, tiny heart devices before starting treatment.