How long is the training to become a cardio vascular surgeon?

A LONG TIME!!: According to my surgical colleagues, they do a full 6-7 year surgical residency, followed by a 2-3 year cardio-vascular surgery specially fellowship. So about 8-10 years post medical school!

7-9 year residency: Traditionally, after medical school, the training to become a cardiac surgeon involved 5-7 years of general surgery residency followed by 2-3 years of cardiothoracic surgery.. These surgeons are board certified in general surgery and cardiothoracic surgery. Historically, many cardiac surgeons also performed vascular surgery but it has now become its own specialty and involves 5-7 years training.