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Midterm follow-up of the Amplatzer device in left ventricle-to-aorta conduits
R Formigari1, M Bonvicini, A Donti
1Department of Pediatric Cardiology, St. Orsola Hospital, University of Bologna, Italy. r.formigari@mclink.it
Insights
Percutaneous closure of left ventricle-to-aorta conduits using the Amplatzer device is feasible. Complete occlusion may take up to 18 months, demonstrating the importance of allowing adequate time for the procedure.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Devices
Background:
- Left ventricle-to-aorta (LV-A) conduits are used in complex congenital heart disease.
- Dysfunctional or leaking LV-A conduits require intervention.
- Percutaneous closure offers a less invasive alternative to surgical repair.
Observation:
- This report details the midterm follow-up of two patients with LV-A conduits.
- Patients underwent percutaneous closure using the Amplatzer device.
- One patient achieved immediate complete occlusion.
Findings:
- A trivial residual shunt was noted in one patient at 12 months post-procedure.
- This residual shunt resolved spontaneously by 18 months.
- The Amplatzer device demonstrated feasibility for occluding dysfunctional LV-A conduits.
Implications:
- Percutaneous closure with the Amplatzer device is a viable option for LV-A conduit dysfunction.
- Sufficient time (up to 18 months) may be required for complete shunt occlusion.
- This approach may avoid repeat surgeries for conduit-related complications.
Abstract:
The midterm follow-up of 2 patients with left ventricle-to-aorta conduit who underwent percutaneous closure with the Amplatzer device is described. Complete occlusion was achieved immediately in 1 patient. In the other patient, a trivial residual shunt was still present after 12 months, but disappeared after 18 months. Occlusion of dysfunctional left ventricle-to-aorta conduits by the Amplatzer device is feasible, provided that enough time is allowed for complete occlusion.