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First-degree atrioventricular block. Clinical manifestations, indications for pacing, pacemaker management & consequences during cardiac resynchronization.一度房室传导阻滞。临床表现、起搏指征、起搏器管理及心脏再同步化治疗期间的后果。
J Interv Card Electrophysiol. 2006 Nov;17(2):139-52. doi: 10.1007/s10840-006-9065-x. Epub 2007 Mar 2.
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Pediatric cardiac remodeling after cardiac resynchronization therapy.心脏再同步治疗后的小儿心脏重塑
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[Permanent His-bundle pacing in patients with infra-Hisian atrioventricular block].[希氏束下房室传导阻滞患者的永久性希氏束起搏]
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Long-term effects of dual-chamber pacing with periodic echocardiographic evaluation of optimal atrioventricular delay in patients with hypertrophic cardiomyopathy >50 years of age.对年龄大于50岁的肥厚型心肌病患者进行双腔起搏并定期进行超声心动图评估最佳房室延迟的长期影响。
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Impedance cardiography for atrioventricular interval optimization during permanent left ventricular pacing.永久左心室起搏期间用于优化房室间期的阻抗心动图。
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超声心动图用于确定双腔起搏器患者的最佳房室间期。

Echocardiography for determining the optimal atrioventricular interval in patients with dual chamber pacemakers.

作者信息

Sun Pin, Zhao Qing, Wang Zhi-Bin, Li Jian-Sheng, Wo Jin-Shan, Cai Shang-Lang

机构信息

Department of Cardiac Ultrasound, Affiliated Hospital of Medical College, Qingdao University, Qingdao City, China.

出版信息

Clin Cardiol. 2009 Aug;32(8):439-41. doi: 10.1002/clc.20555.

DOI:10.1002/clc.20555
PMID:19685516
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6653618/
Abstract

BACKGROUND

We investigated the clinical value of Doppler echocardiography for determining the optimal setting of atrioventricular interval in patients with dual chamber pacemakers (DDD). In 38 patients with complete atrioventricular block and DDD pacemakers, the atrioventricular interval was prolonged in a stepwise fashion by 20 ms, from 90 to 250 ms, and cardiac stroke volume and transmitral flow were measured by pulsed Doppler echocardiography.

METHODS

The optimal atrioventricular interval at which the cardiac stroke volume was maximal was 168.9 +/- 15.6 ms. The atrioventricular interval was 178.4 +/- 23.4 ms when the end of the A wave coincided with complete closure of the mitral valve.

RESULTS

There was a significant linear relationship between the optimal atrioventricular interval and the predicted optimal atrioventricular interval (Y = 86.2 +/- 0.5X, r = 0.70, standard error of the estimate [SEE] = 11.5, P < 0.01).

CONCLUSION

The optimal atrioventricular interval setting for DDD pacing can be successfully determined using Doppler echocardiography, which is a noninvasive, repeatable, and simple approach.

摘要

背景

我们研究了多普勒超声心动图在确定双腔起搏器（DDD）患者房室间期最佳设置中的临床价值。在38例患有完全性房室传导阻滞且植入DDD起搏器的患者中，房室间期以20毫秒的步长从90毫秒延长至250毫秒，并通过脉冲多普勒超声心动图测量心搏量和二尖瓣血流。

方法

心搏量最大时的最佳房室间期为168.9±15.6毫秒。当A波结束与二尖瓣完全关闭同时发生时，房室间期为178.4±23.4毫秒。

结果

最佳房室间期与预测的最佳房室间期之间存在显著的线性关系（Y = 86.2±0.5X，r = 0.70，估计标准误差[SEE] = 11.5，P < 0.01）。

结论

使用多普勒超声心动图可以成功确定DDD起搏的最佳房室间期设置，这是一种无创性、可重复且简单的方法。