You should go for regular check up to see your heart is working properly or not. Medicine are to prevent your further damage of cardiac function hence very necessary. At least 6 months of interval you should check your function of heart by doing 2 d echo. Stress
test and if required angiography
. For prevention purpose you can go for yoga
pranayama n ayurvedic medicine for heart. Contact if require medicine. Drinking is harmful. Avoid it.