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目的对室间隔缺损介入封堵术后发生传导阻滞的原因和特点进行分析。方法对2012年4月至2013年4月43例室间隔缺损患者行介入封堵术的临床资料进行回顾性分析。结果术中出现传导阻滞1例,术后出现不完全性左束支传导阻滞2例,Ⅱ度房室传导阻滞1例,非阵发性交接性心动过速1例。术前、术后1个月、术后6个月房室传导阻滞发生率分别0、13.9%、4.6%,两两比较差异均有统计学意义(P<0.05)。房室传导阻滞患者均在2周内经治疗痊愈。结论室间隔缺损患者行介入封堵术易出现传导阻滞,经过治疗大部分都可以恢复正常。
Objective To analyze the causes and characteristics of conduction block after transcatheter closure of ventricular septal defect. Methods The clinical data of 43 patients with ventricular septal defect admitted from April 2012 to April 2013 were retrospectively analyzed. Results There were 1 case of conduction block in operation, 2 cases of incomplete left bundle branch block, 1 case of Ⅱ degree atrioventricular block and 1 case of non-paroxysmal transitional tachycardia. Preoperative, postoperative 1 month, postoperative 6 months incidence of atrioventricular block were 0,13.9%, 4.6%, any difference was statistically significant (P <0.05). Atrioventricular block patients were cured within 2 weeks after treatment. Conclusions Patients with ventricular septal defect are prone to block after interventional therapy, and most of them can return to normal after treatment.