Early this year, I was diagnosed with something called Cardiomyopathy. It is an enlargement of the heart, specifically the left ventricle. I have a twin brother that does not use AS and he is fine. I have never used GH, only test, winny, dbol, deca, and so on... I have been using for 2 years, 4 cycles total. I had a heart attack last Sunday and it was not pretty. Can anybody tell me with confidence that AS does not cause the heart to grow? I want to eliminate AS as the cause of my problems. Anybody with knowledge of the heart would know something called Injection Fraction, and mine has gone down to 27%. It was 49% only 4 months ago. Please please help. The doctors that I have don't seem to have an answer for me.