<s>[INST] doctor my father is 83 years old and four days back he suffered from cardiomegaly as per reports the heart size has increased and few water is also found ,he is undergoing treatement but still i want to know as to what this deseases is all about and is it cureable and what precations and medicines he should take [/INST] Cardiomegaly is enlarged heart, and it may occur due to following causes cardiomyopathy heart valve disease congestive heart failure pulmonary hypertension hypertensioncardiomegaly leads to ineffective pumping of blood by heart and may result into cardiac failure if appropriate treatment is delayed. Your cardiac surgeon will do following test to find out the cause-examine heart sound by stethoscope to detect any murmur.ECG advise a chest x -ray advise an echocardiography after following test are done, and the cause is diagnosed he will choose the medicines to continue the treatment because the choice of medicine varies according to the cause of cardiomegaly.  Thankyou and take care. </s>