When it was placed, it perforated my
heart,
and had to be replaced 2 days later. In 2005, the battery was recalled, and it was replaced again. A month ago, it delivered an inappropriate shock b/c the lead is fractured somewhere. It is now turned off. I was placed on a beta-blocker. Three weeks into the meds, I began having chest tightness and shortness of breath. I went to my cardiologist, and the ecg was normal.