P1578Global longitudinal strain in the SAFE-HEaRT study (Cardiac SAFEty of HER2 targeted therapy in patients with HER2 positive breast cancer and reduced left ventricular function). (28th August 2018) - Barac, A; Lynce, F; Medvedofsky, D A; Geng, X; Dang, C; Yu, A; Tan, M; Isaacs, C; Swain, S M; Asch, F M