Status:

NOT_YET_RECRUITING

Venous Compression in Fontan

Lead Sponsor:

University of Texas Southwestern Medical Center

Conditions:

Single-ventricle

Fontan Circulation

Eligibility:

All Genders

18-45 years

Phase:

NA

Brief Summary

The aim of this study is to investigate whether venous compression garments increase exercise stroke volume in patients with Fontan circulation. To address this aim, we will test the following hypothe...

Detailed Description

Study Day 1 - Consent, Screening and Garment Measurements: Following assessment of participant eligibility, all participants will undergo leg venous ultrasound assessment and abdominal-foot measureme...

Eligibility Criteria

Inclusion

  • Patients with a Fontan circulation -
  • Inclusion criteria:
  • • Patients at UTSW aged 18-45 years old with a Fontan circulation.
  • Exclusion Criteria:
  • NYHA Class 4
  • Severe AV valve regurgitation
  • Severe ventricular dysfunction
  • Large ascites
  • Significant varicosities
  • Atrio-pulmonary (AP) Fontan
  • Known Fontan thrombus
  • Poorly controlled arrythmia
  • Unplanned cardiac admission in the last 6 months
  • Cyanosis (resting O2 saturation \<85%)
  • Pregnant
  • Common femoral vein obstruction \>50% to be performed following completion of informed consent.
  • Healthy Controls:
  • Healthy control participants will be recruited on the basis of having no known chronic diseases and not currently taking any cardiovascular medications.

Exclusion

    Key Trial Info

    Start Date :

    December 1 2025

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ESTIMATED

    End Date :

    November 1 2027

    Estimated Enrollment :

    20 Patients enrolled

    Trial Details

    Trial ID

    NCT07220226

    Start Date

    December 1 2025

    End Date

    November 1 2027

    Last Update

    October 23 2025

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