Effect of Percutaneous Transluminal Septal Myocardial Ablation on Diastolic Dysfunction in Patients With Hypertrophic Obstructive Cardiomyopathy by Real-time Three-dimensional Echocardiography
10.3969/j.issn.1000-3614.2015.06.002
- VernacularTitle:应用实时三维超声心动图技术评价经皮室间隔化学消融术对肥厚型梗阻性心肌病患者左心室舒张功能的影响
- Author:
Fujian DUAN
;
Hui LI
;
Yiming GAO
;
Jianpeng WANG
;
Shubin QIAO
;
Jiansong YUAN
;
Jingang CUI
;
Hao WANG
- Publication Type:Journal Article
- Keywords:
Hypertrophic obstructive cardiomyopathy;
Percutaneous transluminal septal myocardial ablation;
Real-time three-dimensional echocardiography
- From:
Chinese Circulation Journal
2015;(6):516-519
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To assess the effect of percutaneous transluminal septal myocardial ablation (PTSMA) on mid- to long-term left ventricular diastolic function in patients with hypertrophic obstructive cardiomyopathy (HOCM) by real-time three-dimensional echocardiography (RT-3DE). Methods: A total of 46 HOCM patients who received 2DE and RT-3DE examination before and after (with the mean of 18.8 months) PTSMA were studied. The ratios of E/A and E/Ea were analyzed, RT-3DE was conducted to collect the images, to obtain 17-segmant volume-time curve and to calculate the parameters of rEDV, rESV, rSV and rPFR respectively. Results: The follow-up echocardiography in all 46 patients indicated that the ratio of E/Ea decreased after the operation (12.04 ± 3.29) vs (15.70 ± 5.68),P<0.001, the rSV of left ventricular anterior wall middle segment and anterior septal middle segment decreased after the operation,P<0.05, while the rPFR of anterior septal middle segment, rear septal middle segment and apical segment increased,P<0.05. Conclusion: PTSMA may improve local left ventricular diastolic function in HOCM patients, RT-3DE provides a new method and viewing angle for HOCM evaluation.
