Echocardiographic evaluation of pediatric mitral valve replacement：a single-center study
10.3760/cma.j.cn131148-20240813-00439
- VernacularTitle:儿童二尖瓣置换超声心动图评估：一项单中心研究
- Author:
Linyue ZHANG
1
;
Yuji XIE
1
;
Zhaoli REN
1
;
He LI
1
;
Wenqian WU
1
;
Li ZHANG
1
;
Yuman LI
1
;
Mingxing XIE
1
Author Information
1. 华中科技大学同济医学院附属协和医院超声医学科 湖北省影像医学临床医学研究中心 分子影像湖北省重点实验室，武汉 430022
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Mitral valve replacement;
Children
- From:
Chinese Journal of Ultrasonography
2025;34(1):17-25
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the application value of echocardiography in the management of pediatric mitral valve replacement.Methods:Thirty-three children who underwent mitral valve replacement at Union Hospital Tongji Medical College Huazhong University of Science and Technology from January 2009 to June 2023 were retrospectively analyzed. Clinical data and preoperative and postoperative echocardiographic data were collected. The differences in ultrasound parameters among preoperative，1-week postoperative，1-month postoperative and 1-year postoperative were compared.Results:Of the 33 children，there were 4 cases（12.12%）of mitral stenosis，33 cases（100%）of mitral regurgitation and 4 cases（12.12%）of mitral stenosis combined with regurgitation. Mechanical valve replacement was performed in 30 cases（90.91%）and bioprosthetic valve replacement in 3 cases（9.09%）. Compared with the preoperative period，the left atrial internal diameter and left ventricular end-diastolic internal diameter were significantly reduced at 1-week postoperatively，1-month postoperatively，and 1-year postoperatively，respectively（all P <0.05）.The left ventricular mass was significantly reduced and the left ventricular end-diastolic sphericity index was significantly increased（both P < 0.05）at 1-month postoperatively compared with preoperatively. The left ventricular ejection fraction was significantly higher at 1-year postoperatively compared with 1-week postoperatively（ P <0.05）. Conclusions:After pediatric mitral valve replacement，the left ventricular dimensions decrease，and cardiac function progressively recovers. Echocardiography is an essential tool for accurate preoperative assessment and postoperative follow-up in pediatric mitral valve replacement.
