Novel shunt modification with an adjustable stent-embedded "fenestrated" septal occluder in a patient with pulmonary hypertension
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Updated: Jul 4, 2026

Shunt Surgery, Right Heart Catheterization, and Vascular Morphometry in a Rat Model for Flow-induced Pulmonary Arterial Hypertension
Published on: February 11, 2017
Ajay Yadlapati1, David Wax2, Stuart Rich1
1Bluhm Cardiovascular Institute and the Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Abstract:
A 60-year-old woman with progressive dyspnea and cyanosis, O2-dependent pulmonary hypertension despite optimal medical therapy and remote atrial septostomy presented with worsening cyanosis and right-to-left shunting. The creation of a "fenestrated" ASD closure device with the insertion of a peripheral stent through an AMPLATZER™ ASD closure device was deployed to minimize right to left shunting and allow for enlargement of the shunt if needed. This case demonstrates the benefit of diminishing a right to left shunt with a self-fabricated fenestrated AMPLATZER device to improve symptoms in pulmonary hypertension patients with a pre-existing ASD.
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