EF is shorthand for Ejection Fraction. 'Normal' hearts are between 50 - 70% efficient, so it appears the heart in question is within the normal range. I would suggest you ask your friend to get the procedure report from the clinic or hospital, it will have detailed information about the valves that some people who post on this board may understand, and can help you understand the conclusions.
In the meantime, he may only have minor or trivial valve damage, which is pretty common.
I am new could you explain what EF means.
Well I think this must be the EF. An echo scan cannot determine how much, if any, tissue damage there is. This requires something like a nuclear scan.