经皮室间隔缺损封堵术后早期发生加速性交界性逸搏心律相关因素分析

Risk factors for accelerated junctional escape rhythm in children early after percutaneous ventricular septal defect closure

摘要:

目的：探讨儿童经皮室间隔缺损（VSD）封堵术后早期发生加速性交界性逸搏心律（AJER）的相关因素。方法：采用回顾性对照研究的方法，选取2008年1月至2012年10月经皮VSD封堵术后1周内发生AJER的42例患儿，在年龄、性别、缺损直径、封堵器大小、封堵器与缺损直径的差值、缺损与主动脉瓣环距离等项目与对照组封堵术后（未发生AJER患儿）比较，采用logistic回归分析AJER发生的危险因素。结果：AJER组比对照组缺损与主动脉瓣环距离更远、缺损基底直径更大、封堵器的大小（即封堵器腰部直径）也更大、封堵器腰部直径与缺损直径差值更大，差异均有统计学意义（P<0.05）。Logistic回归分析显示缺损与主动脉瓣环距离（OR=1.813，P=0.002）及封堵器的大小（即封堵器腰部直径，OR=1.671，P=0.029）是术后AJER发生的主要危险因素。结论：VSD患儿行封堵器关闭术后发生AJER与室间隔缺损大小、封堵器大小、封堵器腰部直径与缺损直径的差值以及缺损与主动脉瓣环距离相关，其中缺损与主动脉瓣环距离和封堵器的大小是术后发生AJER的主要危险因素。

Abstract:

OBJECTIVE: To identify the risk factors for accelerated junctional escape rhythm (AJER) in children early after percutaneous ventricular septal defect (VSD) closure. METHODS: A retrospective controlled study was conducted on 42 children who had AJER within one week after percutaneous VSD closure between January 2008 and October 2012. These subjects were compared with controls without AJER after VSD closure in terms of age, sex, diameter of VSD, occluder size, difference between occluder size and diameter of VSD, and distance between VSD and aortic valve ring. Risk factors for AJER were identified by logistic regression analysis. RESULTS: Compared with the control group, the AJER group had a longer distance betweenVSD and aortic valve ring, a larger diameter of VSD (basal diameter), a larger occluder size (waist diameter) , and a bigger difference between the waist diameter of occluder and diameter of VSD (P<0.05). Logistic regression analysis showed that distance between VSD and aortic valve ring (OR=1.813, P<0.05) and occluder size (OR=1.671, P<0.05) are primary risk factors for AJER. CONCLUSIONS: AJER early after percutaneous VSD closure is related to diameter of VSD, occluder size, difference between the waist diameter of occluder and diameter of VSD, and distance between VSD and aortic valve ring. The distance between VSD and aortic valve ring and occluder size are primary risk factors for AJER.