My mother was recently told she'd had a silent heart attack. It's resulted in the total occlusion of her right coronary artery.

Posted by FirstCitizen

She's diabetic, but walks a few miles every morning until recently. She's never complained about shortness of breath or difficulty exercising. Her other coronary arteries are perfectly clear, and show no sign of heart disease. She's 63. Is there any chance she's excaped catastrophic damage to her heart?