Aim: To explore the incidence of subclinical cardiotoxicity in women treated with adjuvant trastuzumab in the early breast cancer setting using cardiac magnetic resonance imaging (cMRI). Methods: The cardiac function and myocardial tissue characteristics of 25 women who had completed adjuvant trastuzumab therapy greater than 6months previously was evaluated using MRI and comparing this with symptoms and routine echocardiography. Results: Evidence of myocardial tissue damage was seen in two women in the absence of functional change or previous cardiac symptoms. Conclusion: Tissue characterization using cMRI may provide a useful tool in defining trastuzumab induced cardiotoxicity.
- Breast cancer
- Cardiac magnetic resonance imaging