What question did this study set out to answer?

To explore the feasibility of a minimally invasive, staged transcatheter approach for treating complex sinus venosus atrial septal defects.

Sequential transcatheter closure of sinus venosus and secundum atrial septal defects using covered stents and a septal occluder, a two-step strategy: a case report

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Case report demonstrates effective defect closure in a young male with sinus venosus ASD and PAPVD, suggesting a viable alternative to surgery.

To explore the feasibility of a minimally invasive, staged transcatheter approach for treating complex sinus venosus atrial septal defects.
Described a 22-year-old male with SVASD and PAPVD undergoing staged transcatheter intervention.
Initially deployed two PTFE-covered stents to redirect pulmonary venous flow and exclude the defect.
Followed by implantation of a septal occluder to close residual defects and improve symptoms.
Achieved effective closure of sinus venosus and secundum ASDs.
Demonstrated significant symptomatic improvement post-intervention.

Firouzi et al. (2026) studied this question.

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Case report demonstrates effective defect closure in a young male with sinus venosus ASD and PAPVD, suggesting a viable alternative to surgery.