Related Experiment Video
Updated: Jan 22, 2026
05:31
Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model
Published on: June 8, 2022
3.4K
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.
World Journal for Pediatric & Congenital Heart Surgery
|January 20, 2026
Summary
Stent placement in the right ventricular outflow tract (RVOT) can treat obstruction after tetralogy of Fallot (TOF) repair. However, malposition can cause severe complications, necessitating surgical intervention and valve replacement.
Area of Science:
- Cardiology
- Pediatric Cardiac Surgery
- Interventional Cardiology
Background:
- Transcatheter balloon dilation is a key treatment for residual or recurrent right ventricular outflow tract (RVOT) obstruction post-tetralogy of Fallot (TOF) repair.
- Stent placement in the RVOT is an option when balloon dilation fails, but carries risks of complications.
Purpose of the Study:
- To report a rare case of RVOT stent malposition in a child with recurrent obstruction after valve-sparing TOF repair.
- To highlight the potential for severe complications arising from RVOT stent malposition.
Main Methods:
- Case report detailing the clinical course of a pediatric patient.
- Description of diagnostic findings and interventions, including surgical management.
Main Results:
- A case of RVOT stent malposition occurred in a child previously treated for TOF.
- This malposition led to severe tricuspid regurgitation and ventricular dysrhythmias.
- Surgical intervention was required for stent removal and pulmonary valve replacement.
Conclusions:
- RVOT stent malposition is an uncommon but serious complication following TOF repair.
- Prompt surgical management, including stent removal and valve replacement, may be necessary to address these complications.
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