Tetralogy of Fallot Seed Grant

NCT ID: NCT00722826

Last Updated: 2015-06-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

82 participants

Study Classification

OBSERVATIONAL

Study Start Date

2007-06-30

Brief Summary

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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.

Detailed Description

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Conditions

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Pulmonary Regurgitation After Repair of Tetralogy of Fallot

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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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.
Minimum Eligible Age

13 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of California, San Francisco

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Charles B Higgins, MD

Role: PRINCIPAL_INVESTIGATOR

UCSF Department of Radiology

Locations

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UCSF Medical Center

San Francisco, California, United States

Site Status

Countries

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United States

References

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Geva T, Sandweiss BM, Gauvreau K, Lock JE, Powell AJ. Factors associated with impaired clinical status in long-term survivors of tetralogy of Fallot repair evaluated by magnetic resonance imaging. J Am Coll Cardiol. 2004 Mar 17;43(6):1068-74. doi: 10.1016/j.jacc.2003.10.045.

Reference Type BACKGROUND
PMID: 15028368 (View on PubMed)

Davlouros PA, Kilner PJ, Hornung TS, Li W, Francis JM, Moon JC, Smith GC, Tat T, Pennell DJ, Gatzoulis MA. Right ventricular function in adults with repaired tetralogy of Fallot assessed with cardiovascular magnetic resonance imaging: detrimental role of right ventricular outflow aneurysms or akinesia and adverse right-to-left ventricular interaction. J Am Coll Cardiol. 2002 Dec 4;40(11):2044-52. doi: 10.1016/s0735-1097(02)02566-4.

Reference Type BACKGROUND
PMID: 12475468 (View on PubMed)

Helbing WA, de Roos A. Clinical applications of cardiac magnetic resonance imaging after repair of tetralogy of Fallot. Pediatr Cardiol. 2000 Jan-Feb;21(1):70-9. doi: 10.1007/s002469910009.

Reference Type BACKGROUND
PMID: 10672616 (View on PubMed)

Araoz PA, Reddy GP, Higgins CB. Congenital heart disease. In: Higgins CB, de Roos A, eds. Cardiovascular MRI and MRA. 1 ed. Philadelphia: Lippincott Williams & Wilkins, 2003; 122-135.

Reference Type BACKGROUND

Higgins CB, Caputo GR. Role of MR imaging in acquired and congenital cardiovascular disease. AJR Am J Roentgenol. 1993 Jul;161(1):13-22. doi: 10.2214/ajr.161.1.8517291.

Reference Type BACKGROUND
PMID: 8517291 (View on PubMed)

van der Geest RJ, Reiber JH. Quantification in cardiac MRI. J Magn Reson Imaging. 1999 Nov;10(5):602-8. doi: 10.1002/(sici)1522-2586(199911)10:53.0.co;2-c.

Reference Type BACKGROUND
PMID: 10548768 (View on PubMed)

Higgins CB, Sakuma H. Heart disease: functional evaluation with MR imaging. Radiology. 1996 May;199(2):307-15. doi: 10.1148/radiology.199.2.8668769.

Reference Type BACKGROUND
PMID: 8668769 (View on PubMed)

Pettigrew RI, Oshinski JN, Chatzimavroudis G, Dixon WT. MRI techniques for cardiovascular imaging. J Magn Reson Imaging. 1999 Nov;10(5):590-601. doi: 10.1002/(sici)1522-2586(199911)10:53.0.co;2-s.

Reference Type BACKGROUND
PMID: 10548767 (View on PubMed)

Other Identifiers

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UCSF Seed Grant FWA #00000068

Identifier Type: -

Identifier Source: secondary_id

H627-29142-02

Identifier Type: -

Identifier Source: org_study_id

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