I seem to be the only one where Tagrisso affected the heart. The problem is prolongation of the QTc that showed up in my EKG (that I discussed several days ago). This is not a good problem to have and it provoked a lot of questions in my head. I started wondering if I should talk to cardiology? I then read a comment that said QTc and aerobics are incompatiible, and at that point I sent an email to my primary raising all kinds of questions. She, in turn, contacted the Chief of Cardiology who checked out my EKGs and concluded that he doubts very much if I have a QTc problem at all. She sent me his analysis and when he cited "U waves," I rolled my eyes and surrendered. My oncologist will receive the analysis. At the end of the month I'll have another EKG and the machine will calculate my QTc. Can that calculation be trusted?