https://drsvenkatesan.com/2026/04/25/why-ivc-rim-is-most-important-in-asd-device-closure/Dr.S.Venkatesan MDen2026-04-25T06:06:21+00:00Why IVC rim is most important in ASD device closure ?amplatzer asd device, ASD device closure, asd rims, adequate rims in asd for device closure, ivc vs aortic rims in asd device closure, why ivc rim is most important in asd clsoure