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In this manuscript, we have evaluated numerous changes of cardiac function in patients with multiple myeloma before and after PAD chemotherapy with 3D speck tracking imaging (3D-STI). For this purpose, 39 patients with multiple myeloma, from July 2019 to December 2020, who received the PAD regimen (bortezomib + doxorubicin liposome + dexamethasone, a course of 12 days) were selected as subjects. A comparison of two-dimensional conventional echocardiographic parameters before and after chemotherapy and 3D-STI related parameters was carried out. After 6 cycles of chemotherapy, the levels of TAPSE, RVFAC, and LVEF were significantly lower than those before chemotherapy ( P &lt; 0.05 ). There was no significant difference in the results of left and right ventricle two-dimensional conventional echocardiography before chemotherapy and 2 or 4 cycles after chemotherapy ( P &gt; 0.05 ). There were significant differences in the levels of RVGCS, RVGLS, RVGRS, LVGLS, and LVGRS before and after chemotherapy ( P &lt; 0.05 ). Specifically, RVGCS: after 6 cycles of chemotherapy &lt; after 4 cycles of chemotherapy &lt; before chemotherapy; RVGLS: after 6 cycles of chemotherapy &lt; after 4 cycles of chemotherapy &lt; after 2 cycles of chemotherapy &lt; before chemotherapy; RVGRS: after 6 cycles of chemotherapy &lt; after 4 cycles of chemotherapy &lt; before chemotherapy; LVGLS: after 6 cycles of chemotherapy &lt; after 4 cycles of chemotherapy &lt; before chemotherapy; and LVGRS: after 6 cycles of chemotherapy &lt; before chemotherapy. The results of Pearson correlation analysis showed that the dose of doxorubicin was negatively correlated with RVGCS, RVGLS, RVGRS, and LVGLS, but not with TAPSE, RVFAC, LVEF, and LVGRS. 3D-STI is helpful for early detection of the changes of left and right ventricular myocardial function after PAD chemotherapy in patients with multiple myeloma. And the early screening value of the RVGLS parameter is higher.

Evaluation of Cardiac Function before and after PAD Regimen in Patients with Multiple Myeloma by Three-Dimensional Speckle Tracking Imaging