John Kevin O'donoghue M.D.

Angina refers to chest discomfort, tightness, or pain that occurs due to a reduction in blood supply to the muscles of the heart. People commonly confuse this chest pain and discomfort with indigestion. Angina can cause an individual's chest to feel heavy, achey, tight, in addition to a burning...

According to a new study, vitamin E supplementation may not reduce the risk of heart failure in women. This study is the first of its kind, focusing on the effectiveness of vitamin E supplementation in the prevention of heart failure. Vitamin E is an antioxidant that helps to protect the body from...

Atrial fibrillation (AFib) is a condition that disrupts the heart's functions, specifically the heart rate or rhythm. Symptoms can be intermittent, persistent, or permanent in nature, and in some instances they disappear on their own, while other forms require medication to restore normal heart...

According to a new study, survivors of a heart attack who get angry easily and are stressed out will have increased chances of another heart attack. In this study, about 50% of the heart attack survivors who had very high scores for anger and stress on the psychological tests had a fatal or...

After the completion of your catheter ablation operation, the professionals will move you to a separate room while you wait for them to pull out the catheters. After a few hours, they will remove the catheters, and then they will apply pressure on the areas or around the incision to stop or control...

What is CHD?Coronary heart disease (CHD) is the disease that develops when there is an insufficient oxygen supply to the heart muscle by the coronary arteries. The most common reason for this is atherosclerosis of the coronary arteries with cholesterol plaques formation and narrowing of the arterial...