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Congenital Heart DiseaseNCT00556231

Multi-site Near Infrared Spectroscopy (NIRS) Monitoring of Children During Exercise

An observational study of Congenital Heart Disease, run by Medical College of Wisconsin 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

Near Infrared Spectroscopy (NIRS) monitoring has proven beneficial in increasing safety and improving patient care during pediatric cardiac surgery and during Pediatric Intensive Care Unit (PICU) stays. Read more about this study

Who is it for?
Ages 6 to 20 years
Conditions the study is for
Congenital Heart Disease
How many people
51 participants
Where
1 siteUnited States
Study dates
Nov 2007to Dec 2012
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 6 to 20 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Study population: Children and adolescents from age 6 to 20 undergoing exercise stress testing

Who may be able to join

  • Children and adolescents from age 6 to 20 undergoing exercise stress testing on treadmill

Who cannot join

  • Children and adolescents unable to exercise or unable to follow directions or unable to understand English.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Children's Hospital of Wisconsin

    Milwaukee, Wisconsin, 53226

Other trials in United States

About this study

Official title: Use of Multi-site Near Infrared Spectroscopy (NIRS) Monitoring for Global Hemodynamic Assessment During Exercise Testing in Children With and Without Heart Disease

Near Infrared Spectroscopy (NIRS) monitoring has proven beneficial in increasing safety and improving patient care during pediatric cardiac surgery and during Pediatric Intensive Care Unit (PICU) stays. NIRS estimates the amount of oxygen in tissues by comparing the tissue's absorption of two wavelengths of light corresponding to hemoglobin carrying oxygen and hemoglobin without oxygen.

During cardiac surgery, multi-site NIRS monitoring is used to determine the heart's output by comparing the amount of oxygen available to discrete regions of the body nourished by different parts of the circulatory system. NIRS leads placed on the forehead detect oxygen available to the brain (cerebral), while leads placed over the kidney reflect oxygen available to the internal organs (somatic).

Read more

NIRS monitoring has been used for studying muscle oxygen usage during exercise in normal and disease states. Cerebral oxygenation at peak exercise at has been studied with NIRS monitoring. The use of multi-site NIRS monitoring during exercise stress testing for studying cardiac output through the patterning of somatic and cerebral oxygenation in combination with exercise stress test data has not been researched.

We hypothesize that addition of multi-site NIRS monitoring to the standard data collection already achieved during exercise testing, will enable calculation of anaerobic threshold and cardiac output prediction. This will assist in determining appropriate timing for surgical intervention, predicting the post operative course and testing response to medication.

Keywords
NIRS, cardiac output, anaerobic threshold, exercise stress, congenital heart defect
Medical subject headings
Heart Defects, Congenital

What participants receive

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

Study groups in NCT00556231
Study groupRoleWhat they receive
1Children with congenital heart lesions - males/females, ages 6-20, scheduled for a regular stress test
2Children without congenital heart lesions - males/females, ages 6-20, scheduled for a regular stress test
3Not described
4Not described
5Not described
6Not described

What is being measured

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

  1. regional oxygen saturations in 4 sites

    Measured: during exercise stress testing

Timeline

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

  1. First posted9 Nov 2007 (estimated)
  2. Study startNov 2007
  3. Primary completionDec 2012
  4. Study completionDec 2012

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
Case-control
Time perspective
Prospective
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00556231
Sponsor's protocol ID
CHW 07/198
Status last verified
Jan 2013
First submitted
7 Nov 2007
Last updated
4 Jan 2013
Results posted
No
Data monitoring committee
No

Publications

  • Danduran MJ, Dixon JE, Rao RP. Near infrared spectroscopy describes physiologic payback associated with excess postexercise oxygen consumption in healthy controls and children with complex congenital heart disease. Pediatr Cardiol. 2012 Jan;33(1):95-102. doi: 10.1007/s00246-011-0097-3. Epub 2011 Sep 3.

    PubMed 21892649
  • Rao RP, Danduran MJ, Loomba RS, Dixon JE, Hoffman GM. Near-infrared spectroscopic monitoring during cardiopulmonary exercise testing detects anaerobic threshold. Pediatr Cardiol. 2012 Jun;33(5):791-6. doi: 10.1007/s00246-012-0217-8. Epub 2012 Feb 19.

    PubMed 22349729
  • Rao RP, Danduran MJ, Hoffman GM, Ghanayem NS, Berger S, Frommelt PC. Cerebral hemodynamics in the presence of decreased systemic venous compliance in patients with Fontan physiology may limit anaerobic exercise capacity. Pediatr Cardiol. 2010 Feb;31(2):208-14. doi: 10.1007/s00246-009-9585-0.

    PubMed 19915888

Questions about this trial

What is this clinical trial studying?

An observational study of Congenital Heart Disease, run by Medical College of Wisconsin 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 1 inclusion and 1 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 4 Jan 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?

regional oxygen saturations in 4 sites (time frame: during exercise stress testing). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00556231, which also lists 3 linked publications.

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 4 Jan 2013.

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