hello, Clot or blockages in heart arteries are basically a fat deposits which occurs due to high cholesterol, blood pressure and as a age related change. He might not be having critical blockage and thats why deferred Stenting. He should have a healthy lifestyle like avoiding fatty, oily and high calorie diet. Have low salt diet and monitor blood pressure regularly. Regular exercises like brisk walking, jogging according your capacity atleast 30 min a day and 5 days a week. Lots of green leafy vegetables, fruits, fish once or twice a week, avoid meat. Avoid smoking and alcohol if any. There shouldn t abdominal fat deposition or obesity. Get your lipid profile and sugars tested once.. He should not leave the medicine otherwise blockages may increase and lead to heart attack. These medicine can cause stomach and uncomfortable feeling due to acidity and reflux disease. Does he have upper abdominal pain, nausea, bloating, burping, increase in pain on food, sour water feeling in throat or chest burning, if yes it further supports the diagnosis. You should avoid fatty, oily and high calorie diet. Have some walk after having food instead of taking rest. Have multiple small meals instead of heavy meals. Have regular sleep habits and avoid stress. Lots of green leafy vegetables, fruits. Avoid smoking and alcohol if any. You can get prescribed tab Pantoprazole 40 mg beforebreakfast once a day for 2 weeks.