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Obesity and Obstructive Sleep Apnea (OSA) in Children

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified May 2010 by Assaf-Harofeh Medical Center.
Recruitment status was:  Not yet recruiting
Information provided by:
Assaf-Harofeh Medical Center Identifier:
First received: May 31, 2010
Last updated: June 1, 2010
Last verified: May 2010
The goal of this research is to study the prevalence of sleep disordered breathing and associated morbidity in obese children and to examine the role of diet and physical activity in the treatment of sleep-disordered breathing in obese children.

Condition Intervention
Obstructive Sleep Apnea Obesity Behavioral: Diet Procedure: Surgery

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Dietary Therapy for Obesity-related Sleep-disordered Breathing in Children

Further study details as provided by Assaf-Harofeh Medical Center:

Primary Outcome Measures:
  • Reduction in apnea hypopnea index (AHI) [ Time Frame: 3, 6 months ]
    Repeat polysomnography to assess change in AHI following treatment

Secondary Outcome Measures:
  • Change in subjective complaints and sleepiness [ Time Frame: 6 months ]
  • Change in lipid profile and liver enzymes [ Time Frame: 6 months ]

Estimated Enrollment: 100
Study Start Date: June 2010
Estimated Primary Completion Date: June 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Diet
Patients treated with diet and physical therapy for the entire 6 months of the study
Behavioral: Diet
Dietary therapy and physical education
Active Comparator: Surgery
Patients undergoing adenotonsillectomy at some point of the study period
Procedure: Surgery
Adenotonsillectomy along with diet and physical therapy

Detailed Description:
In a prospective cohort study, obese children will be recruited. After informed consent is obtained, all children will complete a standardized sleep questionnaire and a pediatric daily sleepiness scale questionnaire. All participants will undergo a complete physical examination, blood tests for lipid profile, liver enzymes, and Glucose and insulin will be obtained, and liver sonography will be performed to assess for the presence of fatty liver. Nasopharyngeal radiographs will be used to assess adenoidal size based on the method by Cohen and Konak. A standard in-laboratory, overnight polysomnography will be performed, within 2 weeks of enrollment to the study, in the sleep laboratory at Asaf Harofeh Medical Center. Children with severe obstructive sleep apnea, defined as apnea hypopnea index (AHI) > 15 will undergo adenotonsillectomy. All children will be referred for a dietary and physical education program. The first visit with the dietician will be considered day 1 of the study. Children will than be followed monthly by a dietician. After three months of follow-up, subjects will be divided into two groups. Group 1 will include all children who had AHI > 2 on the initial polysomnography (including children who underwent adenotonsillectomy for AHI > 15), and group 2 will consist of children who had AHI < 2 on the initial PSG. Children of group 2 will continue monthly dietary visits as before. Children from group 1 will undergo a second evaluation including questionnaires, laboratory blood tests, liver sonography, nasopharyngeal radiographs, and polysomnography. Children who demonstrate reduction in the AHI based on PSG will be offered to continue with dietary treatment alone. Children with no change in the AHI based on PSG will be offered to undergo adenotonsillectomy in addition to continued dietary management. All children will be followed for a total duration of six months. After six months, all children will be re-evaluated by questionnaires, blood tests, liver sonography, and nasopharyngeal radiographs. Polysomnography will be performed in all children who had an AHI > 2 on the second PSG.

Ages Eligible for Study:   6 Years to 12 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • BMI at or above the 90th percentile

Exclusion Criteria:

  • children with chronic lung or liver disease, mental retardation, syndromes (i.e. prader willi syndrome), endocrine abnormalities (hypothyroidism cushing), chronic medical treatment with oral steroids, or with anti-psychiatric or anti-convulsive medications
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01135147

Contact: Arnon Elizur, MD 972-8-977-9817

Asaf Harofeh Medical Center Not yet recruiting
Zerifin, Israel, 70300
Contact: Arnon Elizur, MD    972-8-9779817   
Principal Investigator: Arnon Elizur, MD         
Sponsors and Collaborators
Assaf-Harofeh Medical Center
  More Information

Responsible Party: Arnon Elizur, MD, Assaf Harofeh Medical Center Identifier: NCT01135147     History of Changes
Other Study ID Numbers: 40/09
Study First Received: May 31, 2010
Last Updated: June 1, 2010

Additional relevant MeSH terms:
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Nutrition Disorders
Body Weight
Signs and Symptoms
Respiration Disorders
Respiratory Tract Diseases
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases processed this record on August 17, 2017