Strain-oriented strategy for guiding cardioprotection initiation of breast cancer patients experiencing cardiac dysfunction

Aims This study assessed the impact of the strain-guided therapeutic approach on cancer therapy-related cardiac dysfunction (CTRCD) and rate of cancer therapy (CT) interruption in breast cancer. Methods and results We enrolled 116 consecutive female patients with HER2-positive breast cancer undergoing a standard protocol by EC (epirubicine + cyclophosphamide) followed by paclitaxel + trastuzumab (TRZ). Coronary artery, valvular and congenital heart disease, heart failure, primary cardiomyopathies, permanent or persistent atrial fibrillation, and inadequate echo-imaging were exclusion criteria. Patients underwent an echo-Doppler exam with determination of ejection fraction (EF) and global longitudinal strain (GLS) at baseline and every 3 months during CT. All patients developing subclinical (GLS drop >15%) or overt CTRCD (EF reduction Conclusion These findings highlight the usefulness of ‘strain oriented’ approach in reducing the rate of overt CTRCD and CT interruption by a timely cardioprotective treatment initiation.