UBC Faculty Research and Publications

Management strategies and clinical outcomes in breast cancer patients who develop left ventricular dysfunction during trastuzumab therapy Yao, Ren Jie Robert; Gibson, Jordan; Simmons, Christine; Davis, Margot K.


Background: Trastuzumab reduces risk of breast cancer recurrence but carries risk of cardiotoxicity that may be reversible upon treatment cessation and institution of left ventricular (LV) enhancement therapies (LVETx). We assessed management patterns of trastuzumab-induced cardiotoxicity (TIC) in a contemporary real-world setting. Methods: We reviewed charts of all breast cancer patients who received adjuvant trastuzumab in British Columbia between January 2010 and December 2013, spanning the opening of a cardio-oncology clinic. LV dysfunction (LVD) was classified as minimal (LVEF nadir 45–49%), mild (40–44%) or moderate-severe (

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