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Kisqali and Letrozole have heart issues?
Breast Cancer | Last Active: Jul 26 5:33pm | Replies (25)Comment receiving replies
Good to hear you’re doing okay. Thanks for the info regarding the 200 mg dose. I started on 600 but that gave me dangerous QT prolongation. I have been on 400 for 4.5 years and dealing with paroxysmal AFib ever since that started on day 5 of Kisqali but 8 days before I started Letrozole. I purposely started Letrozole two weeks later hoping I would know which med caused which side effects. My oncologist tells me the AFib is unrelated. Right. Heart rhythm issues are even in Kisqali’s own literature. I will be asking the EP his thoughts on Kisqali and AFib. Thanks again for the reply. Best to you going forward.
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My cardiology told me that Kisqali may cause QT prolongation issue and letrozole may cause AFib. The QT prolongation issue is stated as a side effect on Kisqali manual, though the AFib is NOT listed as a side effect on Letrozole manual. But you said you have AFib before taking Letrozole. It seems that the Kisqali shall be the reason.