Why the study?
Transcatheter closure of secundum ASDs with a deficient posteroinferior rim is challenging due to technical failure risk, warranting exploration of morphological features tied to procedural success.
Do echocardiographic indices (defect-to-septal ratio and defect-to-left atrial volume ratio) predict procedural success in patients with deficient posteroinferior rims undergoing transcatheter ASD closure?
Population
34 patients with PI rim deficiency undergoing transcatheter closure attempts
Design
Retrospective study
Key result
Fulfilling at least one low-risk morphological criterion (DSR < 61.9% or DLAR < 1.3 mm/mL) identified a highly favorable cohort for transcatheter ASD closure, yielding a 100% procedural success rate.
Authors
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May identify favorable transcatheter ASD closure candidates via morphology; hypothesis-generating and requires prospective validation.
Observational (n=34)
Do echocardiographic indices (defect-to-septal ratio and defect-to-left atrial volume ratio) predict procedural success in patients with deficient posteroinferior rims undergoing transcatheter ASD closure?
Combining defect-to-septal ratio and defect-to-left atrial volume ratio provides a practical framework for risk stratification and predicting procedural success in transcatheter ASD closure for patients with deficient posteroinferior rims.
Saito et al. (2026) conducted an observational in Secundum atrial septal defects (ASDs) with a deficient posteroinferior (PI) rim (n=34). Low-risk morphological profile (DSR < 61.9% or DLAR < 1.3 mm/mL) was evaluated on Procedural success. Fulfilling at least one low-risk morphological criterion (DSR < 61.9% or DLAR < 1.3 mm/mL) identified a highly favorable cohort for transcatheter ASD closure, yielding a 100% procedural success rate.