Related Experiment Video
Updated: Jan 22, 2026

Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model
Published on: June 8, 2022
Surgical Rescue of Right Ventricular Outflow Tract Stent Malposition With Tricuspid Valve Compromise
Lindsey M Reynolds1, Seth E M Wolf2, John A Kucera2
1Duke University School of Medicine, Durham, NC, USA.
Abstract:
Transcatheter ballon dilation has emerged as a valuable strategy to treat residual or recurrent right ventricular outflow tract (RVOT) obstruction following valve-sparing repair of tetralogy of Fallot (TOF). When balloon dilation is unsuccessful, stent placement in the RVOT may be effective. While uncommon, stent-related complications can occur and contribute to unintended morbidity. We report a case of RVOT stent malposition leading to severe tricuspid regurgitation and ventricular dysrhythmias in a child with recurrent RVOT obstruction following valve-sparing repair of TOF. Surgical management was required and included complete stent removal and bioprosthetic pulmonary valve replacement.
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