Hole in heart at 67, treatment options ?

This regarding a problem faced my father currently. He had angioplasty in 2006. Every thing looked fine on surface but he was detected with a hole in heart during an echo test in 2008 (nothing was detected in 2006). my first question is

1.Is that possible that a hole developed at that stage by itself?

But doctors at that time said that it would be fine overtime and it would disappear in due course. Lately ( in later 2010) he also had problem with enlarged prostate and was referred to surgery or Ho laser treatment. Now he has been told that his enlarged prostate cannot be treated till he gets he gets his heart hole is taken care off.

2. Is it true that he has to treat hole in his heart before prostate treatment.
And if it is true what are the safe options available for him ( he is 67). is there any non surgical treatment possible?
I thank all in advance for their opinion.