Ask the doctor: How could I have a heart attack after a normal exercise test?

I had a nuclear exercise test last fall, and it was perfectly normal. Imagine my surprise this spring when I developed burning chest pain that turned out to be a heart attack on the bottom part of my heart. Did the doctors mess up the reading of my test?

Content restricted. Requires subscription

Ask the doctor: How did my blood pressure suddenly become normal?

I was taking diltiazem and Atacand, which gave me an average blood pressure of 110/65. Recently while in the hospital, my blood pressure got so low I was told to stop taking these medications. My blood pressure has remained at 105/65. How can this be?

Content restricted. Requires subscription

Ask the doctor: Does the length of the ST segment on an electrocardiogram matter?

I have an electrocardiogram as part of my yearly checkup. After the last one, my doctor mentioned that my ST segment was longer this year than it was last year. He recommended that I have a stress test to check this out. I passed with flying colors. When I asked the cardiologist who did the stress test about the ST segment, he said the length isn?t really important, that the height and shape are what matter. Can you explain?

Content restricted. Requires subscription

Ask the doctor: How often does a leaky mitral valve need to be checked?

Your article on mitral valve surgery didn’t mention how often someone like me – with mild regurgitation from a leaky mitral valve but no symptoms – should have his or her valve checked. Are there any standards for this?

Content restricted. Requires subscription