Hi,

My father is 64 years old. He had severe aortic stenosis and thus
replaced it with a Biologic Valve on July 2006. Last week he had
fever
and there was slight variations on his ECG. He was under observation
for two days and now he is normal.

The main concern is, the doctors, during surgery has told us that his
valve is too small, the smallest available is 19 size, and they might
replace including root if 19 seems to be large for him. Anyway, after
surgery, they told us that 19 size was ok, so no need of  root
replacement.
Will this be a problem in future?

What all things can he do?/can he not do? Can he walk in normal
speed?
If so for how long? Can he do yoga and other excercise? Can he carry
weight? What all care should be taken now?

BTW, I am from India, to be more precise, Kerala.

Regards

Deepthy