AC treatment really affected my heart function and then herceptin nearly knocked it off. Yet I know of others who have had no issues. Fortunately 3 months after chemo and herceptin completely stopped my heart function had returned to my baseline. Thank Goodness. I reckon I get more irregular heart beats now than I did before (especially after coffee) but other than that all is well.
The alternative though, considering the aggressiveness of my cancer, it was worth taking those risks as I now have a life with some side effects, but I have a life. Kath x