Interesting question. We must to evolve ourselves.
I begin 30 years ago as cardiac and thoracic surgeon; 18 yerars ago I left thoracic surgery and 15 years ago I met endovascular surgery.
There are not so many Dpt Were you can follow this route.
To date you have probably to chose what you want to be in the future (main job) and also were (in the world) you can best learn and also have more opportunity.
it was one of the important essential field in current decades, but because of development in non invasive procedures, the future is different with decries the role of surgery