I can't answer your personal medical question, obviously, but my doctor did refer me for a TTE (echo cardiogram) about a year in, and then a full session of imaging and stress tests at the university Heart Institute a couple of months after that, just to make sure all was well with my heart.

It would be worth talking to your medical team specifically about monitoring your heart health while you're on ADT, and it's also OK to get a second opinion if you're not happy with their plan (or lack of one).

Best wishes!