Transcatheter ASD closure using Amplatzer Septal Occluder is safe in children with a minimal rate of periprocedural complications and a favorable long-term outcome, especially with no death or cardiac erosion despite a substantial proportion of large defects. Children ≤15 kg and those with large ASDs had a greater risk of complications.
LAA patency on CT is common after LAA occlusion, particularly on venous phase images. Leaks relate to LA/LAA size at baseline, and device malposition and incomplete thrombosis at follow-up. DRT is also quite common but poorly predicted by patient and device-related factors.
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