questions about the relation of subclavian steal and aortic insuficiency

Posted By Carole on July 18, 1998 at 23:55:40:







in 1990 I had an echo done which showed a mild mitral mumur.  In 1995 I had a complete subclavian steal and a dvt in the subclavian vein.  Just prior to this they did another echo that showed both a mitral and aortic murmur both considered inocent.  the subclavian steal was attributed to stenosis of the subclavian artery caused by radiation I had recieved in 1974 to treat hodgkins disease.  
Recently I had an episode of acute fluid retention 14 lbs in 4 days and increasing SOB my PCP placed me on dyazide and ordered a repeat echo my Aortic valve now shows insuficiency and is stenotic, the ventricle is at the high limits of normal for hypertrophy, ejection fraction is still good.
My question is I am 41 years old is it possible the damage to the aortic valve was caused by the steal in 1995 which has since be opened with an angioplasty, and now that I am on zesteril and lasix is this stable or are the two totally unrelated and am I looking at continued progression and a valve replacement in the near future < 5 yrs?