passages.id: 2333
passages.type: title
passages.text: Two-dimensional speckle tracking echocardiography combined with high-sensitive cardiac troponin T in early detection and prediction of cardiotoxicity during epirubicine-based chemotherapy.
passages.id: 2334
passages.type: abstract
passages.text: AIMS: To investigate whether alterations of myocardial strain and high-sensitive cardiac troponin T (cTnT) could predict future cardiac dysfunction in patients after epirubicin exposure. METHODS: Seventy-five patients with non-Hodgkin lymphoma treated with epirubicin were studied. Blood collection and echocardiography were performed at baseline, 1 day after the third cycle, and 1 day after completion of chemotherapy. Patients were studied using echocardiography during follow-up. Global longitudinal (GLS), circumferential (GCS), and radial strain (GRS) were calculated using speckle tracking echocardiography. Left ventricular ejection fraction was analysed by real-time 3D echocardiography. Cardiotoxicity was defined as a reduction of the LVEF of >5% to <55% with symptoms of heart failure or an asymptomatic reduction of the LVEF of >10% to <55%. RESULTS: Fourteen patients (18.67%) developed cardiotoxicity after treatment. GLS (-18.48 + 1.72% vs. -15.96 + 1.6%), GCS (-20.93 + 2.86% vs. -19.20 + 3.21%), and GRS (39.23 + 6.44% vs. 34.98 + 6.2%) were markedly reduced and cTnT was elevated from 0.0010 + 0.0020 to 0.0073 + 0.0038 ng/mL (P all < 0.01) at the completion of chemotherapy compared with baseline values. A >15.9% decrease in GLS [sensitivity, 86%; specificity, 75%; area under the curve (AUC) = 0.815; P = 0.001] and a >0.004 ng/mL elevation in cTnT (sensitivity, 79%; specificity, 64%; AUC = 0.757; P = 0.005) from baseline to the third cycle of chemotherapy predicted later cardiotoxicity. The decrease in GLS remained the only independent predictor of cardiotoxicity (P = 0.000). CONCLUSIONS: GLS combined with cTnT may provide a reliable and non-invasive method to predict cardiac dysfunction in patients receiving anthracycline-based chemotherapy.