Tetralogy of Fallot Seed Grant

MRI Assessment of Right Ventricular Function in Patients After Repair of Tetralogy of Fallot

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00722826

Enrollment

Registered

2008-07-28

Start date

2007-06-30

Completion date

Unknown

Last updated

2015-06-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary Regurgitation After Repair of Tetralogy of Fallot

Keywords

Pulmonary Regurgitation, Tetralogy of Fallot

Brief summary

Patients with pulmonary regurgitation after surgical correction of ToF over 13 years old will be recruited from the UCSF adult congenital heart disease clinic. Since there is no data in the literature describing the prevalence of abnormal MRI volumetric and functional parameters in asymptomatic patients with PR after ToF repair, a pilot study with 30 patients will be conducted. Increase in sample size may be necessary in the future to accurately interpret the data. After informed consent is obtained, clinical history and physical examination as well as review of old charts will be performed to characterize these patient's clinical status. All patients will undertake a graduated supine bicycle exercise test with MVO2 measurement to assess exercise capacity. MRI studies will be performed in a 1.5 tesla unit. SSFP cine images will be obtained in the short-axis plane encompassing the entire heart. Velocity-encoded cine MR images will be obtained perpendicular to the direction of blood flow in the main pulmonary artery. Volumetric and flow analysis will be performed in a separate dedicated workstation by a radiologist. End-diastolic volume, end-systolic volume, ejection fraction, total ejection fraction and pulmonary regurgitant fraction will be calculated.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

13 Years to No maximum

Healthy volunteers

Inclusion criteria

Patients over 13 years of age with pulmonary regurgitation after surgical correction of tetralogy of Fallot. 1. Adult patients with pulmonary regurgitation after surgical repair of tetralogy of Fallot who are under follow-up at the adult congenital heart disease clinic at UCSF or 2. Pediatric patients with pulmonary regurgitation after surgical repair of tetralogy of Fallot who are under follow-up at the pediatric congenital heart disease clinic at UCSF and are referred for a clinically indicated cardiac MRI studies or 3. Adult and pediatric patients with pulmonary regurgitation after surgical repair of tetralogy of Fallot who are referred for clinically indicated MRI studies at UCSF.

Exclusion criteria

Contraindication for MRI study. Claustrophobia.

Countries

United States

Outcome results