Objective: To evaluate the GORE® Cardioform ASD Occluder (GCA)(WL Gore & Associates) device for closure of ostium secundum atrial septal defects (ASDs) with predicted indication for surgical correction.
Background: Closure of large ASD in small children by transcatheter approach is still challenging. This study evaluated the results of GCA in this subset of patients in a tertiary referral center.
Methods: Between January 2020 and March 2022, 97 children underwent transcatheter ASD closure at our Institution. Of them, 38 had a large defect (diameter/weight > 1.2 or diameter/body surface area > 20 mm/m ), predicted suitable for surgery and underwent closure with GCA. Procedure results and midterm outcome are reported.
Results: Patients' age and weight were 5.5 ± 1.5 years and 19.7 ± 4.7 kg, respectively. Absolute and relative ASD size was 21.5 ± 3.6 mm, 1.1 ± 0.2 mm/kg, and 27.7 ± 4.6 mm/m , respectively, resulting in QP/QS of 2.0 ± 0.8. Three patients were sent to surgery after balloon sizing. Four of the remaining 35 patients who underwent device deployment, needed rescue or elective surgery due to device embolization (n = 1), device instability (n = 2) or new-onset tricuspid valve regurgitation (n = 1). Procedure feasibility was 88.6%. Major complications were recorded in two patients (5.7%). Minor complications were recorded in five patients (14.3%). Complete closure at discharge was 90.3% (28/31 pts) rising to 100% at the last follow-up evaluation. Wireframe fracture rate at the 6 months examination was 52%, without clinical and instrumental consequences.
Conclusions: Percutaneous treatment with GCA device is effective and safe in a high percentage of ASD children with predicted indications for surgical correction.
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