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Hi;
I just got back from my onc. I too was taken off herceptin due to low MUGA....42. My MUGA is now 51 so that's good or at least moving in the right direction but my heart is enlarged....like Lexi. My onc said that there are two factors to the gated heart scan. One is the score we are discussing and the other is the pumping action of the heart itself. He said that my heart because the heart is not pumping vigorously and the muscle is kind of sagging...(I am paraphrasing as he used a technical term which I can't remember but this is the jist of it). This sagging is common of any muscle which is "not vigorous" (again paraphrasing) and this makes sense to me as I lift my arm and look at the sagging.....lol. So, although the score is over 50 he wants to wait. He doesn't want permanent damage to the heart which would keep me from ever being able to use herceptin again in the future. So it's a wait and see.
Cathy
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