Transcatheter closure of perimembranous ventricular septal defect in children: Safety and efficiency with symmetric and asymmetric occluders

Abstract

Transcatheter closure of PMVSD using both AVSDO and SVSDO was safe and effective. Development of HB was the main complication for both devices.

Risk Factors and Outcomes of Post-Procedure Heart Blocks After Transcatheter Device Closure of Perimembranous Ventricular Septal Defect

“…High-degree AVB is the most serious PPHB. Four patients developed high-degree AVB (1.8%) in our study; its incidence has ranged from 1.1% to 5.7% in other reports (2,(5)(6)(7)13,14,17). In addition, other types of PPHBs, including RBBB, LBBB, and first-degree AVB, could progress to high-degree AVB (9,10,17,20).…”

“…The only difference between the 2 devices is the shape of the left disk. In the AVSDO, the aortic end of the left ventricle disk is 0.5 mm larger than the waist, and the other end is 5.5 mm larger than the waist, whereas in the SVSDO, the diameter of the left disk is uniformly 4 mm larger than the waist (2).…”

“…The implantation technique for these devices has been described in detail previously (1,2). If the distance from the aortic valve to the defect was Ͻ2 mm, AVSDO was selected.…”

“…Percutaneous device closure of perimembranous ventricular septal defect (pmVSD) has shown great promise since the year 2002 as a viable alternative to surgical closure (1)(2)(3)(4)(5)(6)(7)(8). However, a relatively high incidence of post-procedure heart blocks (PPHBs) has also incurred attention, as they affect the safety of the procedure and the prognosis of patients (2,5,9 -16).…”

Intraoperative device closure of perimembranous ventricular septal defects in the young children under transthoracic echocardiographic guidance; initial experience

“…Meanwhile, the procedure requires no advanced or expensive equipment, and the cost is acceptable in low-income nations. There are many reports on the use of transesophageal echocardiography (TEE) for transcatheter guidance or periventricular placement of a VSD closure device [3,4,6]. To our knowledge, there are no other published reports on the role of TTE in guidance of intraoperative device closure of perimembranous VSDs.…”