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Congenital Heart DiseaseNCT00399555

Neurodevelopmental Outcomes in Hypoplastic Left Heart Syndrome

An observational study of Congenital Heart Disease, run by Emory University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

There have been many improvements in the care of children with hypoplastic left heart syndrome (HLHS). This has helped these children survive longer. Because these children now live longer, researchers are recognizing developmental disabilities (the children are behind in their thinking or physical activity) in… Read more about this study

Who is it for?
Ages 29 months to 6 years
Conditions the study is for
Congenital Heart Disease
How many people
28 participants
Where
1 siteUnited States
Study dates
Nov 2006to Jul 2009
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 29 months to 6 years
  • All sexes
  • No healthy volunteers
  • Child

Study population: Children ages 2.5 to 6 years old who have hypoplastic left heart syndrome with surgical palliation and near infrared spectrometry monitoring during the Stage I Norwood procedure.

Who may be able to join

  • Hypoplastic left heart syndrome is defined as normal segmental anatomy with mitral and/or aortic atresia or stenosis and a left ventricle too small to sustain the systemic circulation
  • Ages 2.5 to 6 years old
  • Surgical palliation with the Norwood procedure (Stage I palliation) at Children's Healthcare of Atlanta after January 1, 2001

Who cannot join

  • Primary language in the home is not English
  • Named genetic syndrome associated with profound developmental delay, such as DiGeorge Syndrome

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Children's Healthcare of Atlanta

    Atlanta, Georgia, 30322

Other trials in United States

About this study

Official title: Neurodevelopmental Outcomes in Hypoplastic Left Heart Syndrome-Correlation With Cerebral Non-invasive Infrared Spectroscopy (NIRS)

There have been many improvements in the care of children with hypoplastic left heart syndrome (HLHS). This has helped these children survive longer. Because these children now live longer, researchers are recognizing developmental disabilities (the children are behind in their thinking or physical activity) in children with hypoplastic left heart syndrome. The purpose of this research study is to help the investigators learn more about developmental disabilities in children with hypoplastic left heart syndrome.

During the time of your child's first surgery for hypoplastic left heart syndrome, a monitor was placed on your child's forehead to measure the oxygen levels in the brain. This monitor is called Near Infrared Spectrometry (NIRS). The researchers involved in this study want to know if oxygen levels in the blood vessels of the brain have any effect on developmental disabilities later in life in children with hypoplastic left heart syndrome. The researchers plan to enroll 60 research subjects.

Read the detailed description

Our study is a cross-sectional, descriptive study to evaluate the developmental outcome for school-age children with HLHS. The general approach of the proposed research is confirmatory study/hypothesis testing. The hypothesis (neurodevelopmental outcome of children with HLHS is inversely correlated with cerebral oximetry values as measured by NIRS in the 48 hours following the Norwood operation) was formulated based on a meticulous review of the literature, which clearly demonstrates a substantial prevalence of neurodevelopmental deficits in children with HLHS who have undergone surgical palliation. The methodologies for measuring developmental outcome are highly reproducible and have been validated in this population.

Keywords
Single Ventricle, Hypoplastic Left Heart, Developmental
Medical subject headings
Heart Defects, Congenital, Univentricular Heart, Hypoplastic Left Heart Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00399555
Study groupRoleWhat they receive
OnePatients with HLHS that have had surgical palliation with the Norwood procedure (Stage I palliation) at Children's Healthcare of Atlanta after January 1, 2001. These patients must be between the ages of 2.5 years and 6 years of age.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To describe the developmental outcome of school-age children with HLHS who have undergone the Norwood procedure at our institution after January 1, 2001

    Measured: Ages 2.5 years to 6 years

Secondary outcomes (1)
  1. Determine whether there is a correlation between cerebral oxygen levels as measured by NIRS and subsequent developmental outcome

    Measured: NIRS measurement 48 hours after Norwood procedure and developemental outcome by 2.5-6 years of age

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Nov 2006 (estimated)
  2. Study startNov 2006
  3. Primary completionJul 2009
  4. Study completionJul 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00399555
Sponsor's protocol ID
IRB00000275
Status last verified
Nov 2013
First submitted
13 Nov 2006
Last updated
27 Nov 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Congenital Heart Disease, run by Emory University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Nov 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To describe the developmental outcome of school-age children with HLHS who have undergone the Norwood procedure at our institution after January 1, 2001 (time frame: Ages 2.5 years to 6 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Nov 2013.

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