SNOWMASS, Colorado (EGMN) – In-hospital mortality due to left atrial catheter ablation for atrial fibrillation is markedly increased at lower-volume centers, according to a recent analysis of all patients in the U. S. government health insurance database undergoing the increasingly popular procedure. “This is a study [that] I think is very sobering. I find the data believable. There are a moderate number of deaths that you hear about through the grapevine,” Dr. Roger A. Winkle said at a...