Brief: Detailed: Hello, Welcome to Health Care Magic. Thanks for writing. I am Dr.Muhammad Ahmad. I have read you question completely, i understand your concern and will try to help you in best way possible. First I will explain about the report. It says that you father had heart attack which effected anterior wall of his heart. Heart has many walls and anterior wall is very important in determining the heart function. Report also says that there is left ventricular dysfunction.. Left ventricle is also most important part of heart and now as it s damaged it is working at half the efficiency of a normal person. Normal ejection fraction is 60% and he is on 30 so after this heart attack his hearr us working at 50% of normal. Now how to keep him out of danger? These are simple yet important points. 1) Save heart from a new attack, this will need him following the diet modifications and regularly taking meds ans doctor followup. 2) Don t over load the heart : this will be done by: a) controlling salt intake. b) Taking meds c) Controlling BP d) Avoiding over exertion. 3) Stay active but always remember he doesn t have to cross his allowed limits.. he is on 50% of heart activity so his physical activity should also be 50% Here your main goal is to keep it at 30% and dont ket it deteriorate.. Leaving meds even for a day can be catastrophic so take care of every thing religiously and everything should be fine. I hope this answered your question.If you have more queries I am happy to answer. Regrads. Dr.Muhammad Ahmad.