Clinical trials: Fontan Physiology
Fontan Procedure, Hypoplastic Left Heart Syndrome
Impact of Vitamin C on Endothelial Function and Exercise Capacity in Fontan-Palliated Patients
In this study, investigators will evaluate the effect of vitamin C on endothelial function, exercise tolerance and quality of life in patients with a single ventricle who have been palliated to Fontan physiology.
- Conditions
- Fontan Procedure, Hypoplastic Left Heart Syndrome, Tricuspid Atresia
- Trial name
- NCT00974025
- Testing
- Vitamin C
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Single-ventricle, Fontan Circulation
Venous Compression in Fontan
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 hypotheses: 1.
- Trial name
- NCT07220226
- Testing
- Lower extremity compression garments, Without compression garments
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Lymphatic Abnormalities, Lymphatic Edema
Lymphatic Function in Patients With a Fontan-Kreutzer Circulation
The lymphatics regulate the interstitial fluid by removing excessive fluid. It represents an extremely important step in the prevention of edema.
- Conditions
- Lymphatic Abnormalities, Lymphatic Edema, Univentricular Heart
- Trial name
- NCT03379805
- Testing
- Near Infrared Fluorescence Imaging, Non-contrast MRI, Strain Gauge Plethysmography
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Single-ventricle
Inspiratory Muscle Therapy in Subjects With Fontan Circulations
Individuals who have undergone the Fontan procedure are uniquely dependent upon respiratory mechanics to support pulmonary blood flow (PBF).
- Trial name
- NCT03339466
- Testing
- Inspiratory muscle therapy
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Fontan Physiology
Feasibility and Efficacy of Portable Non-invasive Negative Pressure Ventilation in Fontan Patients
The human heart has 4 chambers: 2 collecting chambers (atria) and 2 pumping chambers (ventricles) to allow blood flow within two distinct circuits: "pulmonary" and "systemic".
- Trial name
- FONTAN-CMR (NCT03251742)
- Testing
- Hayek RTX ventilator
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University Health Network, Toronto
Congenital Heart Disease
Fontan Circulation and Cardiopulmonary Function: Prognostic Factors, Hemodynamics and Long-term Effects
Cross-sectional study of a national cohort of adolescents with univentricular congenital heart defects and Fontan type palliation.
- Trial name
- NCT02378857
- Where
- Norway
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Oslo University Hospital
Congenital Heart Disease
Microcirculation and Vascular Function After Fontan Surgery
Fontan Surgery is done for children with only one working lower chamber of the heart called the 'Single Ventricle'. This surgery involves making connections between the two big veins that drain oxygen deficient blood to the heart…
- Trial name
- MICROFON (NCT05683067)
- Testing
- Hand Held Capillary Microscopy, Mobile 'O' Graph, quality of life using questionnaires
- Where
- United Kingdom
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- University of Leicester
Univentricular Heart, Lymphatic Abnormalities
Lymphatic Function in Patients With a Fontan Circulation From Brazil
It is suggested that the elevated central venous pressure in patients with a Fontan circulation can provoke manifestation of lymphatic dysfunction, met as plastic bronchitis, peripheral oedema and most feared protein-losing…
- Conditions
- Univentricular Heart, Lymphatic Abnormalities, Lymphatic Edema
- Trial name
- NCT04394507
- Testing
- Near-Infrared Fluorescence imaging, Strain Gauge Plethysmography
- Where
- 2 sites in Denmark
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Congenital Heart Disease, Single Ventricle
Cardiovascular, Pulmonary and Skeletal Muscle Evaluation Postoperative in Fontan Patients: Effects of Exercise Training
Introduction: The Fontan operation is the surgical treatment in most patients with either anatomic or functional single ventricles.
- Conditions
- Congenital Heart Disease, Single Ventricle, Univentricular Heart
- Trial name
- NCT02283255
- Testing
- Aerobic Exercise Training, Inspiratory Muscle Training, No Exercise Training
- Where
- Brazil
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Congenital Heart Disease
Mechanisms of Dysfunction and the Influence of Exercise on Cardiac and Musculoskeletal Function
Primary Objective: To determine if impairments in cardiac and musculoskeletal function and metabolism exist in Fontan children. Secondary Objectives: 1. To determine if impairments do exist, are they related to exercise capacity.
- Trial name
- NCT02004756
- Testing
- Exercise Program
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Fontan Circulation
The Effects of Sildenafil on Exercise Function and Capacity in Patients With Fontan Circulation
The study will test the hypothesis that a single dose of sildenafil can increase the exercise capacity of pediatric patients with a Fontan Circulation.
- Trial name
- NCT00964782
- Testing
- Sildenafil, Sildenafil 2
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center