Hi, Your family member has severe heart attack and only 25% of heart function is remaining. After heart attack damage to heart muscle is usually permanent and extend of damage depends upon duration between onset of symptoms of heart attack and the time of revascularisation achieved either with medicine or by stenting or other method. So our aim is to preserve the remaining function of heart. For which we have to prevent future heart attack. So it is advisable - 1) Coronary angiography and depend on it permanent revascularisation of at risk blood vessels of heart. 2) Strict compliance with medicine advised (blood thinning, cholesterol lowering, other to preserve heart function like Beta blockers, ACE inhibitor or ARBs. 3) Regular BP check and keep it under control. 4) Diabetes control with medicine appropriate for current heart function insulin is preferred. 5) Keep cholesterol under control. 6) Regular tolerable exercise after consultation with your cardiologist.. 7) Avoidance of smoking, alcohol. As far as heart valves damage is concerned treatment is depends on extent of heart damage (usually leakage) and patient s symptoms, recurrent heart failure may require surgical correction Kidney damage after heart attack is usually reversible in most of cases. Recovery of kidney function depends upon presence of underlying CKD (chronic kidney disease) and it s stage.