频率适应性房室延迟单左心室起搏治疗慢性心力衰竭  被引量:1

Application of Left Univentricular Pacing With Rate Adaptive Atrio-ventricular Delay for Treating Chronic Heart Failure Patients

在线阅读下载全文

作  者:赵璐露 蒲里津[1] 赵玲[1] 华宝桐[1] 王钰[1] 李淑敏[1] 刘苓[1] 杨军[1] 郭涛[1] ZHAO Lu-lu PU Li-jin ZHAO Ling HUA Bao-tong WANG Yu LI Shu- min LIU Ling YANG Jun GUO Tao.(Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Ktmming (650032), Yunnan, Chin)

机构地区:[1]昆明医科大学第一附属医院心内科云南省心血管病研究所,云南省650032

出  处:《中国循环杂志》2017年第2期156-160,共5页Chinese Circulation Journal

基  金:国家自然科学基金(81360044);云南省科技厅-昆明医科大学联合专项基金(2013FB133);云南省自然科学基金(2013FZ054)

摘  要:目的:本研究应用频率适应性房室延迟功能跟踪生理性房室延迟,探索单左心室起搏实现心脏再同步化治疗(CRT)的效果。方法:入选60例心力衰竭患者,随机分为频率适应性房室延迟单左心室起搏组和标准双心室起搏组各30例,测定并比较两组术后QRS时限、左心室射血分数(LVEF)、二尖瓣反流面积(MRA)、主动脉瓣前向血流速度时间积分(AVVTI)、EA峰间距(E/A Pd)、心室间机械延迟时间(IVMD)、12节段达峰时间标准差(TS-SD12)及6分钟步行距离(6MWT)的差异,并计算单左心室起搏组5个心率段V_1导联S/R比值的标准差(R_(S/R)-SD5)以评估频率适应性房室延迟功能跟踪生理性房室延迟的准确性。结果:术后单左心室起搏组AVVTI(21.84±2.25)cm较标准双心室起搏组(20.45±2.12)cm增大(P<0.05);单左心室起搏组QRS时限(137±11)ms、IVMD(64.27±12.29)ms、MRA(3.09±1.12)cm^2较标准双心室起搏组(144±11)ms、(71.39±13.64)ms及(3.73±1.19)cm^2减小(P均<0.05);单左心室起搏组R_(S/R)-SD5为4.23±1.89与心功能改善(ΔLVEF,即术后最近一次随访与术前LVEF值之差)负相关(r=-0.394,P=0.031)。结论:频率适应性房室延迟单左心室起搏可实现CRT,比双心室起搏更符合生理性,效果与标准双心室起搏相似。Objective: Using rate adaptive atriao-ventricular delay (RAAVD) tracking physical atrio-ventricular delay to explore the impact of left univentricular pacing (LUVP) for realizing cardiac resynchronization therapy (CRT) chronic heart failure (CHF) patients. Methods: A total of 60 CHF patients were divided into 2 groups: RAAVD-LUVP group and Standard biventricular pacing (BVP) group,n=30 in each group. Post-operative duration of QRS complex, left ventricular ejection fraction (LVEF), mitral regurgitation area (MRA), aortic velocity-time integral (AVVTI), E/A peak period (E/A pd), interventricular mechanical delay (IVMD), standard deviation of time intervals of 12 left ventricular segments (Ts-SD12) and 6-minute walk test (6MWT) were examined and compared between 2 groups. In LUVP group, standard deviation of S/R ratio in 5 segments of V1 lead (RS/R-SD5) was calculated to assess the accuracy of RAAVD for tracking physiological atrio-ventricular delay. Results: Compared with BVP group, RAAVD-LUVP group showed increased post-operative AVVTI (21.84±2.25) cm vs (20.45±2.12) cm,P〈0.05; decreased duration of QRS complex (137±11) ms vs (144±11) ms, IVMD (64.27±12.29) ms vs (71.39±13.64) ms and MRA (3.09±1.12) cm2 vs (3.73±1.19) cm2, allP〈0.05. In LUVP group, RS/R-SD5 (4.23±1.89) was negatively related to△LVEF which was the difference between last post-operative LVEF and pre-operative LVEF (r=-0.394, P=0.031).Conclusion: RAAVD-LUVP could realize CRT, compared with standard BVP, it was more physiological and the effect was similar.

关 键 词:心血管疾病 心力衰竭 心脏再同步化治疗 

分 类 号:R54[医药卫生—心血管疾病]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象