Effect of Cardiac Resynchronization Therapy in Patients With Chronic Heart Failure Combining Left Bundle Branch Block Conformed to New Diagnostic Standard
10.3969/j.issn.1000-3614.2016.04.008
- VernacularTitle:合并符合新诊断标准的左束支阻滞的慢性心力衰竭患者应用心脏再同步化治疗的疗效分析
- Author:
Xuebo TANG
;
Wei XU
;
Xiaohong LI
;
Ning ZHANG
- Publication Type:Journal Article
- Keywords:
Cardiac resynchronization therapy;
Chronic congestive heart failure;
Left bundle branch block
- From:
Chinese Circulation Journal
2016;31(4):345-348
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To analyze the effect of cardiac resynchronization therapy (CRT) in patients with chronic heart failure (CHF) combining left bundle branch block (LBBB) conformed to new diagnostic standard. Methods: A total of 19 CHF patients who received CRT in our hospital from 2005-06 to 2013-05 were studied. The patients were divided into 2 groups: True LBBB group,n=13 patients conformed to new diagnostic standard and False LBBB group, n=6 patients conformed to traditional diagnostic standard. Pre- and Post-operative LVEF, LVEDD, QRS duration (QRSd) and IVMD were compared in all patients; post-operative LVEF, LVEDD, QRSd, IVMD and Tmsv16-SD, Tmsv16-Dif were compared between 2 groups. Results: The post-operative LVEF, LVEDD, QRSd and IVMD were improved than pre-operative condition in both groups. Compared with False LBBB group, the improvements were more obvious in True LBBB group as LVEDD by mm (5.95±0.72 vs 7.13±0.78), IVMD by ms (22.45±8.00 vs 27.63±13.09), and QRSd by ms (140.38±5.80 vs 153.68±14.38), all P<0.01. The post-operative LVEF and Tmsv16-SD, Tmsv16-Dif were similar between 2 groups. Conclusion: CHF patients combining either true or false LBBB could be beneift from CRT, while the patients with true LBBB may receive better clinical outcomes from CRT.
