Ask An Expert: Heart Disease

I recently had a stent placed in an artery. I used to do scuba diving. Can I do so again? I'm concerned about the pressure on my body and stent by being underwater (up to a depth of 125 feet)?

I take Crestor to lower my cholesterol. Is it OK to stop taking it "cold-turkey?"

Can I safely use Viagra after a heart attack? If I do use Viagra, how can I prevent having to take nitrates?

I had a heart attack 13 months ago and had two bare metal stents inserted. Plavix was prescribed. How long should I take this medicine? Is it really beneficial when taken with aspirin?

I'm scheduled for a nuclear medicine stress test with persantine. I've been told I will not be on a treadmill. Instead, I will be given an injection to cause my body to go into stress, as if I were on a treadmill. Why would the doctors go this route? How risky is it?

What are the consequences of stopping Toprol XL for an extended period of time?

Is there a supplement that can be taken with Vytorin to prevent the potential breakdown of muscles tissue?

How often should a 65-year-old man have a stress test? What other tests for my heart are recommended?

Is an enlarged heart a health danger in someone who doesn't have blood clots or other heart disease?

What is a dissected carotid artery?