Related Experiment Video

Updated: Jul 22, 2025

Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model
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

2.9K

Pediatric pulmonary valve replacements: Clinical challenges and emerging technologies

Matthew Crago1, David S Winlaw2, Syamak Farajikhah1

  • 1School of Chemical and Biomolecular Engineering The University of Sydney Sydney Australia.

Bioengineering & Translational Medicine
|July 21, 2023
PubMed

Insights

Pediatric pulmonary valve replacements (PPVRs) face challenges with biofouling and patient growth, necessitating improved device design. Future PPVRs require enhanced biocompatibility and growth-accommodating features for better pediatric patient outcomes.

Area of Science:

  • Biomedical Engineering
  • Pediatric Cardiology
  • Materials Science

Background:

  • Congenital heart diseases (CHDs) often affect the right ventricular outflow tract, leading to frequent pulmonary valve replacements in children.
  • Current pediatric pulmonary valve replacements (PPVRs) have suboptimal biocompatibility and durability, requiring repeat surgeries and causing significant burdens.

Purpose of the Study:

  • To review the clinical challenges and bioengineering approaches for next-generation pediatric pulmonary valve replacements (PPVRs).
  • To explore interdisciplinary solutions for improving PPVR design, addressing biofouling and somatic growth.
  • To provide insights into design requirements for advanced PPVRs to enhance patient quality of life.

Main Methods:

  • Review of clinical experiences in pediatric pulmonary valve replacement.
  • Analysis of physiological challenges related to somatic growth in pediatric patients.
  • Exploration of bioengineering technologies and antifouling chemistries for valve development.

Main Results:

  • Biofouling leads to adverse biological responses like thrombosis and infection, contributing to PPVR failure.
  • Somatic growth in pediatric patients creates structural discrepancies with implanted PPVRs, limiting device longevity.
  • Current PPVRs necessitate frequent reoperations, highlighting the need for improved materials and designs.

Conclusions:

  • There is a critical clinical need for improved pediatric pulmonary valve replacements (PPVRs) with enhanced biocompatibility and durability.
  • Addressing biofouling and accommodating pediatric somatic growth are key to developing next-generation PPVRs.
  • Interdisciplinary collaboration between clinicians and bioengineers is essential for advancing PPVR technology and improving patient outcomes.

Keywords:
biofoulingpediatricpulmonary valve replacementsomatic growth

More Related Videos

Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement09:57

Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement

Published on: January 20, 2022

2.7K
A Simplified Model for Heterotopic Heart Valve Transplantation in Rodents06:33

A Simplified Model for Heterotopic Heart Valve Transplantation in Rodents

Published on: September 21, 2021

2.4K

Related Concept Videos

Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
13
Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
23
Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
22
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
18