Use of a dual-chamber pacemaker to achieve an excellent response to cardiac resynchronization therapy in patients with dilated cardiomyopathy and complete left bundle branch block: a case report

作者：Pu, Lijin; Wang, Yu; Zhao, Lulu; Hua, Baotong; Li, Shumin; Zhao, Ling; Guo, Tao^*

来源：International Journal of Clinical and Experimental Medicine, 2017, 10(4): 6890-6895.

• Cardiac resynchronization therapy
• dilated cardiomyopathy
• rate-adaptive atrioventricular delay algorithm
• optimal atrioventricular delay

The atrioventricular delay (AVD) in cardiac resynchronization therapy (CRT) is usually programmed to be shorter than the physiological AVD, which can lead to patients non-responsive to CRT. Although the programming of rate-adaptive AV delay (RAAVD) has been recommended for the optimization of the AVD in CRT with a triloculare pacemaker, the response to CRT is disappointing. Moreover, few studies have reported a dual chamber pacemaker to achieve response to CRT based on RAAVD algorithm. This study reported a 58-year-old male patient who was diagnosed with dilated cardiomyopathy and complete left bundle branch block. He achieved an excellent response to CRT with a dual-chamber pacemaker by left univentricular pacing with RAAVD algorithm.

• 出版日期2017
• 单位昆明医科大学