- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02135081
Cerebral Blood Flow in Single Ventricles Throughout Staged Surgical Reconstruction (CBF)
A Magnetic Resonance Imaging Study to Determine Cerebral Blood Flow Changes in Single Ventricle Patients During Staged Reconstruction as Compared to Normal Children
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19104
- Children's Hospital of Philadelphia
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria - Single Ventricle Subjects:
- Males or females up to age 10 years.
- Any complex congenital heart lesion that has single ventricle physiology. These single ventricle lesions will be of either right or left ventricular morphology.
- Ability to undergo an MRI scan of at least 60-90 minutes under general anesthesia or deep sedation. Patients will undergo determination of their physical ability to undergo the MRI prior to being enrolled in the study by parameters such as blood pressure, heart rate, cardiac rhythm, and respiratory rate. MRI involves laying still in the supine position for at least 60-90 minutes.
- Parents signing informed consent.
Inclusion Criteria - Normal Control Group:
- Males or females up to age 10 years.
- Normal cerebral anatomy who are normocephalic and who are asymptomatic (e.g. if the scan is performed for headache) at the time of the scan.
- Ability to undergo an MRI scan of at least 60-90 minutes under general anesthesia or deep sedation. Normal patients will undergo determination of their physical ability to undergo the MRI prior to being enrolled in the study by parameters such as blood pressure, heart rate, cardiac rhythm, and respiratory rate. MRI involves laying still in the supine position for at least 60-90 minutes.
- Parents signing informed consent.
Exclusion Criteria - Single Ventricle Patients :
- Any condition judged by the patient's physician that would cause this trial to be detrimental to the patient.
- Stenosis of the branch pulmonary arteries or coarctation of the aorta.
- Any significant arrhythmias such as supraventricular tachycardia, trigeminy, etc. Occasional premature atrial or ventricular contractions or an occasional missed beat is permitted.
- Systemic hypertension.
- Primary lung disease (eg bronchopulmonary dysplasia).
- Any known significant neurological disease outside of the usual state of single ventricle patients.
- Any chromosomal anomalies or other major anomalies which would confound neurological outcome.
- A patient with a pacemaker or cardioverter/defibrillator in place.
- A ferromagnetic foreign body (with the exception of sternal wires and vascular clips in the thorax).
- Parents/guardians or subjects who, in the opinion of the Investigator, may be non-compliant with study schedules or procedures.
Exclusion Criteria - Normal Control Group:
- Any condition judged by the patient's physician that would cause this trial to be detrimental to the patient.
- Any known significant neurological disease
- Any contraindication to performing an MRI.
- Parents/guardians or subjects who, in the opinion of the Investigator, may be non-compliant with study schedules or procedures.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
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Single Ventricle
Subjects will be single ventricle patients who will be prospectively recruited when they are at the first stage of Fontan reconstruction; they will be followed throughout all 3 stages with cerebral blood flow measurements and brain MRIs. Additional single ventricle patients who will not participate in the study for all 3 stages but who may participate for one of two. For example, patients who completed their Stage I and hemi Fontan/bidirectional Glenn operations before this study began will be recruited before Fontan stage completion. Also, patients whose Stage I and hemi Fontan/bidirectional Glenn surgeries will be completed during the study, but who will not complete all 3 surgical stages before this project ends. Cerebral blood flow measurements and brain MRIs will be completed after each surgical stage which occurs during study participation. |
Normal Control Group
Children likely to have a normal brain MRI will be asked to participate.
After the brain MRI is obtained as part of routine clinical care, and a normal brain scan is confirmed, measurement of cerebral blood flow using velocity mapping in the jugular veins and the aorta will be performed.
This will add approximately 10 minutes to the scan but no extra sedation medications will be administered to obtain this data.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cerebral blood flow changes throughout staged surgical reconstruction in single ventricle patients.
Time Frame: Up to 2 years
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Cerebral blood flow & systemic blood flow will be measured via MRI in addition to cerebral anatomy and volume at all 3 stages.
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Up to 2 years
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
CBF in single ventricle patients compared to CBF of age-matched normal children.
Time Frame: Up to 2 years
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Up to 2 years
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CBF reserve and "intactness" of the cerebral regulatory mechanisms after Stage I and hemi Fontan/bidirectional Glenn stage of surgeries.
Time Frame: Up to 2 years
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Determine CBF reserve and "intactness" of the cerebral regulatory mechanisms in patients after Stage I and hemi Fontan/bidirectional Glenn stage of surgeries by obtaining CBF under normal conditions and under conditions of hypercarbia prior to surgery.
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Up to 2 years
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CBF reserve after Stage 1 compared with CBF reserve in hemi Fontan/bidirectional Glenn stage of surgeries.
Time Frame: Up to 2 years
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Up to 2 years
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Age related CBF changes between 4-6 months to 3-10 years.
Time Frame: Up to 2 hours
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Determine age related CBF changes in a group of normal children from ages 4-6 months to 3-10 years undergoing clinical brain MRIs for other reasons and found not to have pathology.
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Up to 2 hours
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Collaborators and Investigators
Investigators
- Principal Investigator: Mark Fogel, MD, CHOP Physician
Publications and helpful links
General Publications
- Fogel MA, Li C, Elci OU, Pawlowski T, Schwab PJ, Wilson F, Nicolson SC, Montenegro LM, Diaz L, Spray TL, Gaynor JW, Fuller S, Mascio C, Keller MS, Harris MA, Whitehead KK, Bethel J, Vossough A, Licht DJ. Neurological Injury and Cerebral Blood Flow in Single Ventricles Throughout Staged Surgical Reconstruction. Circulation. 2017 Feb 14;135(7):671-682. doi: 10.1161/CIRCULATIONAHA.116.021724. Epub 2016 Dec 28.
- Fogel MA, Li C, Wilson F, Pawlowski T, Nicolson SC, Montenegro LM, Diaz Berenstein L, Spray TL, Gaynor JW, Fuller S, Keller MS, Harris MA, Whitehead KK, Clancy R, Elci O, Bethel J, Vossough A, Licht DJ. Relationship of cerebral blood flow to aortic-to-pulmonary collateral/shunt flow in single ventricles. Heart. 2015 Aug;101(16):1325-31. doi: 10.1136/heartjnl-2014-307311. Epub 2015 Jun 5.
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 08-006166
- 1R01HL090615-01A1 (NIH)
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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