<h1 class="pgc-h-arrow-right" data-track="2" > based on three-dimensional spot-tracking imaging technology to evaluate the left ventricular function of patients with rheumatic heart disease after mitral valve replacement
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ZHAO Yaxi 1, CAO Liting 1, GU Peng 1, WANG Haifei 2, TAN Xiong 3, LAI Yinglong 3
【Abstract】 Background The overall three-dimensional deformation ability of the left ventricle in patients with rheumatic heart disease (RHD) is enhanced. Three-dimensional spot-tracking imaging (3D-STI) technique can objectively evaluate the overall systolic function of the left ventricle, but its use to evaluate left ventricular function after mitral valve replacement (MVR) in RHD patients has been less reported.
Objective To evaluate the posterior left ventricular function of MVR in RHD patients based on 3D-STI technology.
Methods From November 2017 to November 2020, 103 patients with RHD who were treated with MVR in the Department of Cardiac Surgery of the Affiliated Hospital of North Sichuan Medical College were selected as the observation group, and 80 healthy volunteers in the same period were selected as the control group. On the day of the physical examination, patients in the observation group underwent 3D-STI examinations 1 1 days before surgery and 3 months after surgery to record the peak of the overall myocardial strain of the left ventricle (including the overall longitudinal strain (GLS), the overall circumferential strain (GCS), the overall radial strain (GRS), the overall area strain (GAS)] and the strain values of the 17 segments of the left ventricle (including longitudinal strain (LS), area strain (AS), circumferential strain (CS), and radial strain (RS)).
Results The preoperative GLS, GCS, GRS and GAS in the observation group were lower than those in the control group (P< 0.05), and the GLS, GCS, GRS and GAS in the observation group were higher than those in the preoperative group at 3 months after surgery (P < 0.05). The LS of the anterior, anterior, inferior, anterior, anterior, anterior wall, anterior wall, inferior medial wall, inferior medial wall, and anterior, intercolumnal and apical segment of the anterior, intercolumnal and apical segments of the observation group was higher than that of the control group (P< 0.05); the LS of the anterior, anterior, inferior and intermediate medial walls, anterior wall, anterior lateral wall, inferior lateral wall, inferior medial wall and anterior wall, mesopic wall and apex of the apical segment was lower than that of the control group (P< 0.05). The AS and CS of the anterior, anterior, inferior, and intermediate anterior walls, anterior wall, inferior wall, and anterior and intermediate segment of the anterior, anterior, inferior, and apical segments of the anterior and intermediate segments of the observation group were higher than those in the control group (P< 0.05); the AS and CS of the anterior, anterior, inferior, and intermediate segments of the basal segment anterior, anterior, inferior, and apical segments were lower than those in the observation group at 3 months after surgery (P< 0.05). The RS of the anterior medial wall, anterior wall and anterior wall of the anterior and intermediate basal segments, the anterior wall and the anterior wall and the apex segment of the observation group were higher than those in the control group (P< 0.05), and the RS of the anterior, anterior and intermediate medial walls, anterior wall and anterior wall of the apical segment of the basal segment was lower than that of the preoperative group (P< 0.05) in the observation group.
Conclusion Based on 3D-STI technology, MVR can effectively improve the peak of the overall myocardial strain of the left ventricle and the strain value of the part of the left ventricle in RHD patients, and has certain judgment value for the treatment effect of MVR in RHD patients.
【Keywords】 Rheumatic heart disease; mitral valve replacement; three-dimensional spot tracking imaging technology; left ventricular function
【Medium figure classification number】 R 541.2 【Document identification code】 A
Source of this article: Zhao Yaxi, Cao Liting, Gu Peng, et al. Evaluation of left ventricular function after mitral valve replacement in patients with rheumatic heart disease based on three-dimensional spot-tracking imaging technology[J].Journal of Practical Cardiovascular and Cerebrovascular Disease, 2021, 29( 10): 36-41. DOI： 10.12114/j.issn.1008-5971.2021.00.229.
ZHAO Y X， CAO L T， GU P， et al. Evaluation of left ventricular function after mitral valve replacement in patients with rheumatic heart disease based on three-dimensional speckle tracking imaging technique［ J］ . Practical Journal of Cardiac Cerebral Pneumal and Vascular Disease， 2021， 29（ 10）： 36-41．DOI： 10.12114/j.issn.1008-5971.2021.00.229.
