Heart Attack Archive

Find out if your sleeping habits put you at risk—and what to do about it.

CT angiography is one of several tests doctors can use to assess your heart's arteries.

For more than half a century, cardiologists have relied on a procedure known as invasive coronary angiography, a test that can reveal dangerous narrowings in the arteries that supply the heart. The test uses a special dye that shows up on x-rays, which is delivered to the heart through a thin tube (catheter) that's snaked through a blood vessel in the leg or arm. As a result, rare but sometime serious complications can occur, including bleeding at the insertion site or damage to the artery.

Divorce—especially for women—appears to boost the odds of having a heart attack, a new study finds.

The study, in the April 14, 2015, Circulation: Cardiovascular Quality and Outcomes, included nearly 16,000 adults ages 45 to 80 who had been married at least once. By the end of the 18-year study, more than a third had gone through at least one divorce. Heart attacks were 24% more common in once-divorced women and 77% higher in those divorced at least twice.

Anxiety disorders promote the stress response, which influences the same brain systems that affect cardiovascular functions.

The dangers of hypertension are well documented, but low blood pressure levels can cause problems, too.

It appears that people with high blood pressure who take folate along with the blood pressure medicine enalapril (Vasotec) may be less likely to have a stroke than people who take enalapril alone.

Q. The other night I woke up at about 2 a.m., and my heart was pumping hard and my lower jaw ached. It lasted about an hour, even though I took aspirin. Then I fell asleep. In the morning everything was fine. Was that a heart attack?

A. If you were my patient and you called my office and told me this, I would tell you to come right in and let me check you out. Probably it was not a heart attack, but the chance that it might have been is high enough that you need to be examined and tested. I hope that's what you did. If you didn't then, you should check with your doctor now.

Q. I had a mild heart attack a few years ago but am now feeling fine. I'm planning a trip to Colorado. Is it safe for me to hike at high elevations?

A. If you're feeling well and don't have any cardiovascular symptoms, hiking in the Rocky Mountains should probably be fine, though you should check with your cardiologist first. Doctors used to advise people with cardiovascular conditions—even just high blood pressure—not to spend time at high altitudes. But there wasn't much evidence behind that recommendation. Now, there's a general consensus that ascending up to 12,000 feet should be fine for most people with heart disease. Exceptions include people with unstable cardiac disease, heart failure, or severe lung disease, such as pulmonary hypertension.

Many men consider taking a daily low-dose aspirin to reduce the chance of having a heart attack or stroke. You should do so only if the chance of being helped outweighs the chance of triggering unwanted bleeding, since aspirin interferes with normal clotting. But about one in 10 men who take protective aspirin may not really qualify, according to a national study in the Journal of the American College of Cardiology.

Experts recommend that aspirin might be considered in someone whose chance of experiencing a cardiovascular problem is at least 6% in the next 10 years. At that tipping point, the chance of being helped is great enough to justify the risk of unwanted bleeding.

Q. I had chest pains for a couple of days and thought I was having a heart attack. My doctor did an electrocardiogram and said I had pericarditis and that it was not serious. What exactly is pericarditis?

A. Pericarditis is inflammation of the pericardium, a protective, double-layered sac surrounding the heart. It has many different possible causes, including a virus or other infection, certain illnesses, an injury to the chest, radiation therapy for cancer, or a reaction to medications. Complications from bypass surgery or the insertion of a pacemaker are other possible triggers. But most of the time, the cause remains elusive.