No benefit for late angioplasty after a heart attack
Opening a blocked coronary artery immediately after a heart attack pays off; doing it after a day or so doesn't.
You've been on the fence about that nagging chest pain and unusual fatigue for hours. You finally go to the hospital, where you learn you've had a heart attack and the artery that caused it is still blocked. It's been a day and a half since the symptoms started. What to do?