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TerminatedNCT00006321Updated Apr 10, 2017

Neurocognitive Function in Snoring Children

An observational study in Lung Diseases, Sleep Apnea Syndromes and Neurologic Manifestations, sponsored by University of Louisville. Terminated. Open to participants aged 6 Years to 10 Years. Per ClinicalTrials.gov, last updated 2017-04-10.

Sponsored by University of Louisville · Observational

Why this study was terminated
PI left the university
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
40
Ages
6 Years to 10 Years
Sex
All
01

Study summary

To assess associations between behavioral/neuropsychological measures and various measures of sleep disordered breathing (SDB) and to determine the prevalence of SDB in children with Attention Deficit Hyperactivity Disorder (ADHD).

Read the detailed description

BACKGROUND:

Obstructive sleep apnea syndrome (OSAS) is a relatively frequent condition which may affect up to 2-3 percent of school age children. The morbidity of untreated OSAS may include failure to thrive, pulmonary and systemic hypertension, and behavioral and neurocognitive deficiencies. However, it remains unclear to what extent OSAS impinges on aspects of neurocognitive and behavioral function, and whether sleep fragmentation, intermittent hypoxemia, and alveolar hypoventilation, which are the three major physiological alterations in OSAS, selectively affect particularly vulnerable components of neurocognitive function. Furthermore, certain similarities exist between the behavioral alterations occurring in OSAS and those seen in children with the Attention Deficit Hyperactivity Disorder (ADHD).

The study is in response to a Request for Applications (RFA) on Obstructive Sleep Apnea in Children. NHLBI issued the RFA in December, 1997, with co-sponsorship from the National Institute of Dental and Craniofacial Research and the National Institute of Child Health and Human Development.

DESIGN NARRATIVE:

The cross-sectional study tested the hypothesis that OSAS is detrimental to particular aspects of neurocognitive and behavioral functioning. Snoring 6 year-old children attending the public elementary school system in New Orleans Parish were prospectively identified by an appropriate questionnaire and enrolled in the study. Snoring children underwent overnight polysomnographic assessment to determine the presence and severity of OSAS, and their neurocognitive and behavioral functions were subsequently evaluated employing the Wechsler Intelligence Scale for Children-III, the Conners' Continuous Performance Test, and the Cambridge Neuropsychological Test Automated Battery test. Multivariate regression and analyses of variance allowed for determination of aspects of neurocognitive function and behavior that were vulnerable to OSAS in general, and to each of OSAS components in particular.

The study also tested the hypothesis that children with ADHD may have increased prevalence of snoring and OSAS. Children with this diagnosis were initially confirmed as having ADHD using the revised Diagnostic Interview for Children and Adolescents, the Conners' Parent Rating Scale, and the Child Behavior Checklist. ADHD children then underwent polysomnographic evaluation as well as extensive evaluation of neurocognitive function and behavior as above. The prevalence of snoring and OSAS were then calculated.

The study was extended through June 2007 to test the hypothesis that SDB will induce systemic inflammatory responses, and that the magnitude of such inflammatory response will be the major determinant of the severity of neurocognitive dysfunction associated with SDB.

02

Conditions studied

  • Lung Diseases
  • Sleep Apnea Syndromes
  • Neurologic Manifestations
03

In context

Sleep Apnea Syndromes

2,162 studies on the registry are indexed under Sleep Apnea Syndromes; 290 are open to participants now.

This study's enrollment of 40 is below the median of 109 across 654 observational studies indexed under Sleep Apnea Syndromes.

Browse Sleep Apnea Syndromes studies →

Lead sponsor

University of Louisville is the lead sponsor of 284 studies on the registry; 53 are open to participants now.

Of its 20 completed or terminated interventional studies of FDA-regulated products, 7 (35%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Years to 10 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Children with attention deficit hyperactivity disorder

Eligibility criteria

Subjects with ADHD

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
40 participants (actual)
06

Study locations

No study locations are listed for this record.

07

References and documents

Publications

  • Gozal D, Simakajornboon N. Passive motion of the extremities modifies alveolar ventilation during sleep in patients with congenital central hypoventilation syndrome. Am J Respir Crit Care Med. 2000 Nov;162(5):1747-51. doi: 10.1164/ajrccm.162.5.2005012. PubMed 11069807 ↗
  • O'Brien LM, Gozal D. Behavioural and neurocognitive implications of snoring and obstructive sleep apnoea in children: facts and theory. Paediatr Respir Rev. 2002 Mar;3(1):3-9. doi: 10.1053/prrv.2002.0177. PubMed 12065176 ↗
  • Gozal D. Morbidity of obstructive sleep apnea in children: facts and theory. Sleep Breath. 2001;5(1):35-42. doi: 10.1007/s11325-001-0035-3. PubMed 11868138 ↗
  • Ivanenko A, Crabtree VM, Tauman R, Gozal D. Melatonin in children and adolescents with insomnia: a retrospective study. Clin Pediatr (Phila). 2003 Jan-Feb;42(1):51-8. doi: 10.1177/000992280304200108. PubMed 12635982 ↗
  • O'Brien LM, Holbrook CR, Mervis CB, Klaus CJ, Bruner JL, Raffield TJ, Rutherford J, Mehl RC, Wang M, Tuell A, Hume BC, Gozal D. Sleep and neurobehavioral characteristics of 5- to 7-year-old children with parentally reported symptoms of attention-deficit/hyperactivity disorder. Pediatrics. 2003 Mar;111(3):554-63. doi: 10.1542/peds.111.3.554. PubMed 12612236 ↗
  • Beebe DW, Gozal D. Obstructive sleep apnea and the prefrontal cortex: towards a comprehensive model linking nocturnal upper airway obstruction to daytime cognitive and behavioral deficits. J Sleep Res. 2002 Mar;11(1):1-16. doi: 10.1046/j.1365-2869.2002.00289.x. PubMed 11869421 ↗
  • Gozal D, Lipton AJ, Jones KL. Circulating vascular endothelial growth factor levels in patients with obstructive sleep apnea. Sleep. 2002 Feb 1;25(1):59-65. doi: 10.1093/sleep/25.1.59. PubMed 11833862 ↗
  • Crabtree VM, Ivanenko A, Gozal D. Clinical and parental assessment of sleep in children with attention-deficit/hyperactivity disorder referred to a pediatric sleep medicine center. Clin Pediatr (Phila). 2003 Nov-Dec;42(9):807-13. doi: 10.1177/000992280304200906. PubMed 14686552 ↗
  • Montgomery-Downs HE, Jones VF, Molfese VJ, Gozal D. Snoring in preschoolers: associations with sleepiness, ethnicity, and learning. Clin Pediatr (Phila). 2003 Oct;42(8):719-26. doi: 10.1177/000992280304200808. PubMed 14601921 ↗
  • O'Brien LM, Ivanenko A, Crabtree VM, Holbrook CR, Bruner JL, Klaus CJ, Gozal D. The effect of stimulants on sleep characteristics in children with attention deficit/hyperactivity disorder. Sleep Med. 2003 Jul;4(4):309-16. doi: 10.1016/s1389-9457(03)00071-6. PubMed 14592303 ↗
  • Simakajornboon N, Gozal D, Vlasic V, Mack C, Sharon D, McGinley BM. Periodic limb movements in sleep and iron status in children. Sleep. 2003 Sep;26(6):735-8. doi: 10.1093/sleep/26.6.735. PubMed 14572128 ↗
  • Gozal D, Burnside MM. Increased upper airway collapsibility in children with obstructive sleep apnea during wakefulness. Am J Respir Crit Care Med. 2004 Jan 15;169(2):163-7. doi: 10.1164/rccm.200304-590OC. Epub 2003 Oct 2. PubMed 14525806 ↗
  • Shouldice RB, O'Brien LM, O'Brien C, de Chazal P, Gozal D, Heneghan C. Detection of obstructive sleep apnea in pediatric subjects using surface lead electrocardiogram features. Sleep. 2004 Jun 15;27(4):784-92. doi: 10.1093/sleep/27.4.784. PubMed 15283015 ↗
  • O'Brien LM, Mervis CB, Holbrook CR, Bruner JL, Klaus CJ, Rutherford J, Raffield TJ, Gozal D. Neurobehavioral implications of habitual snoring in children. Pediatrics. 2004 Jul;114(1):44-9. doi: 10.1542/peds.114.1.44. PubMed 15231906 ↗
  • O'Brien LM, Mervis CB, Holbrook CR, Bruner JL, Smith NH, McNally N, McClimment MC, Gozal D. Neurobehavioral correlates of sleep-disordered breathing in children. J Sleep Res. 2004 Jun;13(2):165-72. doi: 10.1111/j.1365-2869.2004.00395.x. PubMed 15175097 ↗
  • Tauman R, Ivanenko A, O'Brien LM, Gozal D. Plasma C-reactive protein levels among children with sleep-disordered breathing. Pediatrics. 2004 Jun;113(6):e564-9. doi: 10.1542/peds.113.6.e564. PubMed 15173538 ↗
  • Gozal D. New concepts in abnormalities of respiratory control in children. Curr Opin Pediatr. 2004 Jun;16(3):305-8. doi: 10.1097/01.mop.0000127159.74908.27. PubMed 15167018 ↗
  • Ivanenko A, Barnes ME, Crabtree VM, Gozal D. Psychiatric symptoms in children with insomnia referred to a pediatric sleep medicine center. Sleep Med. 2004 May;5(3):253-9. doi: 10.1016/j.sleep.2004.02.001. PubMed 15165531 ↗
  • Tauman R, O'Brien LM, Mast BT, Holbrook CR, Gozal D. Peripheral arterial tonometry events and electroencephalographic arousals in children. Sleep. 2004 May 1;27(3):502-6. doi: 10.1093/sleep/27.3.502. PubMed 15164906 ↗
  • O'Brien LM, Tauman R, Gozal D. Sleep pressure correlates of cognitive and behavioral morbidity in snoring children. Sleep. 2004 Mar 15;27(2):279-82. doi: 10.1093/sleep/27.2.279. PubMed 15124723 ↗
  • Tauman R, O'Brien LM, Holbrook CR, Gozal D. Sleep pressure score: a new index of sleep disruption in snoring children. Sleep. 2004 Mar 15;27(2):274-8. doi: 10.1093/sleep/27.2.274. PubMed 15124722 ↗
  • Gozal D, O'Brien L, Row BW. Consequences of snoring and sleep disordered breathing in children. Pediatr Pulmonol Suppl. 2004;26:166-8. doi: 10.1002/ppul.70094. No abstract available. PubMed 15029640 ↗
  • O'Brien LM, Gozal D. Neurocognitive dysfunction and sleep in children: from human to rodent. Pediatr Clin North Am. 2004 Feb;51(1):187-202. doi: 10.1016/s0031-3955(03)00184-6. PubMed 15008589 ↗
  • Montgomery-Downs HE, O'Brien LM, Holbrook CR, Gozal D. Snoring and sleep-disordered breathing in young children: subjective and objective correlates. Sleep. 2004 Feb 1;27(1):87-94. doi: 10.1093/sleep/27.1.87. PubMed 14998242 ↗
  • Gozal D, O'Brien LM. Snoring and obstructive sleep apnoea in children: why should we treat? Paediatr Respir Rev. 2004;5 Suppl A:S371-6. doi: 10.1016/s1526-0542(04)90066-8. PubMed 14980299 ↗
  • Vanderlaan M, Holbrook CR, Wang M, Tuell A, Gozal D. Epidemiologic survey of 196 patients with congenital central hypoventilation syndrome. Pediatr Pulmonol. 2004 Mar;37(3):217-29. doi: 10.1002/ppul.10438. PubMed 14966815 ↗
  • Uong EC, Jeffe DB, Gozal D, Arens R, Holbrook CR, Palmer J, Cleveland C, Schotland HM. Development of a measure of knowledge and attitudes about obstructive sleep apnea in children (OSAKA-KIDS). Arch Pediatr Adolesc Med. 2005 Feb;159(2):181-6. doi: 10.1001/archpedi.159.2.181. PubMed 15699313 ↗
  • Tauman R, O'Brien LM, Ivanenko A, Gozal D. Obesity rather than severity of sleep-disordered breathing as the major determinant of insulin resistance and altered lipidemia in snoring children. Pediatrics. 2005 Jul;116(1):e66-73. doi: 10.1542/peds.2004-2527. PubMed 15995020 ↗

Individual participant data

Plan to share: Undecided

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 10, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00006321
Lead sponsor
University of Louisville
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
Responsible party
Sponsor
First posted
Oct 3, 2000
Start date
Sep 1999
Primary completion
Jun 2008
Completion
Jun 2008
Last update
Apr 10, 2017

Study contacts

David Gozal
principal investigator · University of Louisville

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Apr 2017. You cannot join it, but the record below documents what was studied.

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