[Evaluation of changes in right ventricular myocardial mechanical properties in breast cancer patients receiving pirarubicin using three-dimensional speckle tracking imaging].

Objective: To evaluate the changes in the mechanical properties of the right ventricular myocardium (RVM) after chemotherapy using three-dimensional speckle tracking echocardiography (3D-STI).

Methods: Thirty-six breast cancer patients receiving chemotherapy with pirarubicin underwent examinations with 3D-STI to test the mechanical properties of the RVM before chemotherapy and at the end of the second, fourth, and sixth cycles of chemotherapy (C2, C4, and C6, respectively). Blood levels of hs-cTnI and NT-proBNP were also examined at the same time points.