Evaluation on Left Ventricular Diastolic Function by Echocardiographic Strain Rate in Patients With Cardiac Resynchronization Therapy
10.3969/j.issn.1000-3614.2014.11.011
- VernacularTitle:应用超声心动图探讨心脏再同步化治疗患者的应变率与左心室舒张功能的关系
- Author:
Tingyu LAN
;
Hao WANG
;
Xin SUN
- Publication Type:Journal Article
- Keywords:
Two-dimensional speckle tracking echocardiography;
strain rate;
Cardiac resynchronization therapy;
Left ventricular diastolic function
- From:
Chinese Circulation Journal
2014;(11):899-902
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the relationship between strain rate parameter and left ventricular diastolic function (LVDF) in patients with cardiac resynchronization therapy (CRT) by two-dimensional speckle tracking echocardiography (2D-STE).
Methods: A total of 70 heart failure (HF) patients with CRT were studied. The early left ventricular diastolic strain rate was obtained by 2D-STE technology, the differences of left ventricular diastolic functional parameters to various CRT echocardiographic responses were observed. The area of relevant parameters under ROC curve was calculated by early left ventricular diastolic strain rate for predicting CRT echocardiographic response.
Results: There were 41 patients presented as CRT echocardiographic responders at 12 months of follow-up period, 29 patients were non-responders. The most parameters of LVDF were signiifcantly improved than the base line in 41 responders. The maximum area of 2D-STE derived parameters under ROC curve was obtained by LSRE predicted CRT echocardiographic response
Conclusion: LSRE had greater value for predicting CRT echocardiographic response, it might be used as a sensitive index for evaluating LVDF in HF patients.
