Related Experiment Video
Updated: Jul 24, 2026
Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
Percutaneous replacement of pulmonary valve in a right-ventricle to pulmonary-artery prosthetic conduit with valve
P Bonhoeffer1, Y Boudjemline, Z Saliba
1Service de Cardiologie Pédiatrique, Hôpital Necker, Enfants-Malades, Paris, France. philipp.bonhoeffer@nck.ap-hop-paris.fr
Insights
This study demonstrates the feasibility of percutaneous pulmonary valve replacement in children with conduit issues. This innovative approach offers a less invasive alternative to reoperation for valved conduit complications.
Area of Science:
- Cardiovascular Surgery
- Interventional Cardiology
- Biomedical Engineering
Background:
- Valved conduits are essential in pediatric cardiac surgery but often develop stenosis or insufficiency, necessitating reoperation.
- Conduit stenting can temporarily address issues but exacerbates pulmonary insufficiency.
- An innovative system for percutaneous stent implantation combined with valve replacement was developed.
Observation:
- A 12-year-old patient with a failing prosthetic conduit underwent a novel percutaneous procedure.
- A bovine jugular valve was implanted percutaneously into the existing conduit.
Findings:
- Post-procedure assessments confirmed no valve insufficiency and partial relief of conduit stenosis.
- The patient experienced no complications at 1-month follow-up and is in good condition.
Implications:
- Percutaneous pulmonary valve replacement is a viable option.
- This technique holds potential for future valve replacements in various cardiac and non-cardiac positions.
- Further advancements may expand the application of this minimally invasive approach.
Background:
Valved conduits from the right ventricle to the pulmonary artery are frequently used in paediatric cardiac surgery. However, stenosis and insufficiency of the conduit usually occur in the follow-up and lead to reoperations. Conduit stenting can delay surgical replacement, but it aggravates pulmonary insufficiency. We developed an innovative system for percutaneous stent implantation combined with valve replacement.
Methods:
A 12-year-old boy with stenosis and insufficiency of a prosthetic conduit from the right ventricle to the pulmonary artery underwent percutaneous implantation of a bovine jugular valve in the conduit.
Findings:
Angiography, haemodynamic assessment, and echocardiography after the procedure showed no insufficiency of the implanted valve, and partial relief of the conduit stenosis. There were no complications after 1 month of follow-up, and the patient is presently in good physical condition.
Interpretation:
We have shown that percutaneous valve replacement in the pulmonary position is possible. With further technical improvements, this new technique might also be used for valve replacement in other cardiac and non-cardiac positions.
More Related Videos
09:40Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice
Published on: May 13, 2019
05:31Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model
Published on: June 8, 2022
