How blood flow and vessel flexibility affect heart function in children after surgery for congenital heart defects

Impact of Blood Viscosity and Vascular Compliance on Fontan Circulation Dysfunction in Children

NIH-funded research Children's Hospital of Los Angeles · NIH-11026426

This study is looking at how thick blood and the flexibility of blood vessels affect the heart function in children who have had surgery for congenital heart defects, helping us understand their unique circulation challenges and find ways to predict potential heart problems.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionChildren's Hospital of Los Angeles NIH-funded
Lab location1 site (Los Angeles, United States)
Project IDNIH-11026426 on NIH RePORTER

What this research studies

This research investigates how blood viscosity and the flexibility of blood vessels impact the heart function of children who have undergone the Fontan surgical procedure for congenital heart defects. By using advanced imaging techniques, specifically 4-D flow magnetic resonance imaging, the study aims to understand the unique circulation challenges these children face. The researchers will analyze how variations in blood flow characteristics relate to clinical signs of heart failure, helping to identify potential predictors of complications. This approach combines computational modeling with real patient data to provide insights into the underlying mechanisms of Fontan circulation dysfunction.

Who could benefit from this research

Good fit: Ideal candidates for this research are children aged 0-11 years who have undergone the Fontan procedure for congenital heart defects.

Not a fit: Patients who have not had the Fontan procedure or are older than 11 years may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved monitoring and treatment strategies for children with Fontan circulation, potentially reducing the risk of heart failure and enhancing their quality of life.

How similar studies have performed: Previous research has shown promising results in understanding blood flow dynamics in similar patient populations, suggesting that this approach could yield valuable insights.

Where this research is happening

Los Angeles, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.