The breast cancer patients with cardiotoxicity caused by trastuzumab were selected as the case group, and the breast cancer patients without cardiotoxicity were selected as the control group. The clinical baseline data, echocardiographic parameters and serum markers of the case group and the control group were compared to find out the risk factors that may have predictive value for the risk of TRC. The target factors were analyzed by univariate analysis and multivariate Logistic regression analysis, and the TRC risk prediction model was established.
