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  • Title: [Management of the arrhythmia around the procedure of transcatheter closure of ventricular septal defects in pediatric patients].
    Author: Xie YM, Zhang ZW, Li YF, Qian MY, Wang HS.
    Journal: Zhonghua Xin Xue Guan Bing Za Zhi; 2005 Dec; 33(12):1092-4. PubMed ID: 16563277.
    Abstract:
    OBJECTIVE: To discuss the treatment of arrhythmia occurs in the process of transcatheter closure of perimembranous ventricular septal defects (VSD) in pediatric patients. METHODS: 182 cases (mean age: 6.2 +/- 3.3 years) with membranous VSD underwent transcatheter occlusion procedure. Two different devices were used: the Amplatzer membranous VSD occluder in 81 patients and the domestic-made device in 101 patients. Electrocardiogram of all patients was recorded before and during closure and at one day after the procedure, and Holter monitoring was performed one week after the procedure. RESULTS: Perioperation arrhythmia occurred in thirty-one patients (17%). Second- or third-degree atrioventricular bundle (AVB) was noted during the procedure in four patients. Normal AV conduction recovered spontaneously before the catheters were withdrawn in three cases and another patient underwent surgical repair. In the other twenty-seven patients, arrhythmia was first documented between one day and one week after the procedure. Third-degree AVB was found in three (1.6%) children after the procedure and underwent the temporary pacemaker (TPM) was implanted, two of them recovered to normal sinus rhythm within one week, another patient underwent elective surgery to remove the occluder and repair the defect. Other arrhythmias were: left bundle-branch block (n = 3), right bundle-branch block (n = 12), second-degree AVB (n = 2), sinus tachycardia (n = 6). CONCLUSIONS: In properly selected cases of perimembranous VSD, the transcatheter closure is safe and effective by using appropriate devices. During and after the procedure, closure of VSD can be associated with some kinds of arrhythmia, such as A-V block, more intensive observation and follow-up were therefore needed.
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