Tetralogy of Fallot Seed Grant

May 29, 2015 updated by: University of California, San Francisco

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

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.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

82

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Francisco, California, United States, 94143
        • UCSF Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

13 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

This is a cross sectional study. Patients with pulmonary regurgitation after repair of tetralogy of Fallot assisted in the adult or pediatric congenital heart disease clinic or referred for clinical MRI studies at our institution will be invited to participate in the study.

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Cross-Sectional

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of California, San Francisco

Investigators

  • Principal Investigator: Charles B Higgins, MD, UCSF Department of Radiology

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2007

Primary Completion (Actual)

June 1, 2009

Study Registration Dates

First Submitted

July 23, 2008

First Submitted That Met QC Criteria

July 23, 2008

First Posted (Estimate)

July 28, 2008

Study Record Updates

Last Update Posted (Estimate)

June 2, 2015

Last Update Submitted That Met QC Criteria

May 29, 2015

Last Verified

May 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • H627-29142-02
  • UCSF Seed Grant FWA #00000068

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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