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The article presents case studies related to antenatally diagnosed aortico-left ventricular tunnel (ALVT). It states that the case of 20 weeks old antenatal, indicates the presence of perimembranous ventricular septal defect (VSD) having large aorta and dilated left ventricle. It mentions the case of a 22 weeks old antenatal with postoperative complications. It also discusses the neonate who was well at birth, in which the closure of the tunnel was performed using a bovine patch.

We report two cases of transcatheter-device closure of aortopulmonary windows, a residual defect occurring after previous surgical closure, and a native lesion. The postsurgical defect was closed with an Amplatzer Duct Occluder II (AGA Medical Corporation, MN). The native lesion was not suitable for an Amplatzer Duct Occluder II device; thus, it was closed using an Amplatzer Duct Occluder (AGA Medical Corporation, MN). The Amplatzer Duct Occluder II provides an additional device for aortopulmonary window closure, but anatomy and defect characteristics dictate the most appropriate device. [ABSTRACT FROM AUTHOR]