Early Assessment of Right Heart Function in Patients with Left Heart Assist Device Implantation Based on Ultrasound Tissue-Tracking Strain Technique
10.3969/j.issn.1005-5185.2025.06.012
- VernacularTitle:基于超声组织追踪应变技术早期评估左心辅助装置植入患者右心室功能
- Author:
Shujiao JI
1
;
Gaojun XU
;
Yingchun GUO
;
Haohui ZHU
Author Information
1. 河南省胸科医院 郑州大学附属胸科医院超声科,河南 郑州 450000
- Publication Type:Journal Article
- Keywords:
Heart failure;
Echocardiography;
Heart-assist devices;
Ventricular function,right;
Strain
- From:
Chinese Journal of Medical Imaging
2025;33(6):633-637,680
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To evaluate right ventricular function before and after the implantation of left ventricular assist device(LVAD)based on ultrasound tissue-tracking strain technique.Materials and Methods We collected data from 15 patients who underwent LVAD surgery from September 2021 to December 2023 in Henan Provincial Chest Hospital.A retrospective analysis was performed on various parameters,including right ventricular free wall strain,right ventricular global longitudinal strain,right ventricular fractional area change,tricuspid annular plane systolic excursion,tricuspid annulus motion spectrum S'peak and intracardiac structural changes,both before surgery and at 1 and 3 months post-surgery.Results Among the 15 LVAD patients,the surgical success rate was 93%.One patient died from acute heart failure following implantation,while the remaining 14 patients recovered well post-surgery.In the 14 patients,the right ventricular free wall strain gradually decreased in the basal,middle and apical segments both before and after surgery,with a more significant reduction in the apical segment.Specifically,the strain decreased at 1 and 3 months post-surgery compared to before surgery[15.80(7.00),8.47(4.90),12.00(5.20)],and showed a significant increase at 3 months post-surgery compared to 1 month post-surgery(all P<0.05).Additionally,the tricuspid annulus displacement of the right ventricle decreased post-surgery(P<0.05).Notably,the size of the left atrium and ventricle significantly decreased at 1 and 3 months post-surgery compared to before surgery,with statistical significance(P<0.05).Meanwhile,the right ventricular fractional area change and the size of the right ventricle was slightly larger than pre-surgery values,without statistical significance(P>0.05).There was no statistically significant change in left ventricular ejection fractions before and after surgery(P>0.05).Conclusion Right ventricular function decreases after LVAD surgery,gradually improving after 3 months,and changes in right ventricular free wall strain parameters are more sensitive.
