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Treatment of Children With Obstructive Sleep Apnea and Laryngomalacia: the Role of Laser Supraglottoplasty

This study is currently recruiting participants.
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Verified November 2016 by Bruce Matt, Indiana University
Information provided by (Responsible Party):
Bruce Matt, Indiana University Identifier:
First received: October 30, 2006
Last updated: November 16, 2016
Last verified: November 2016

This is a research study of the effect of treating laryngomalacia (floppiness of tissue on top of the voice box that can possibly block breathing) found in association with obstructive sleep apnea (blockage of breathing while sleeping).

The purpose of this study is to determine which is the best treatment for children with obstructive sleep apnea and laryngomalacia: adenotonsillectomy alone or adenotonsillectomy with laser supraglottoplasty (removal of tissue on top of the voice box to open the airway).

Condition Intervention
Sleep Apnea, Obstructive Respiration Disorders Procedure: supraglottoplasty with laser

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Treatment of Children With Obstructive Sleep Apnea and Laryngomalacia: the Role of Laser Supraglottoplasty

Resource links provided by NLM:

Further study details as provided by Bruce Matt, Indiana University:

Primary Outcome Measures:
  • as measured by overnight polysomnogram: [ Time Frame: within one year of operation ]
  • Changes in minimum oxygen saturation [ Time Frame: within one year of operation ]
  • Changes in Respiratory Disturbance index [ Time Frame: within one year of operation ]
  • Changes in peak end-tidal carbon dioxide(CO2) level [ Time Frame: within one year of operation ]
  • Changes in mean end-tidal carbon dioxide(CO2) level [ Time Frame: within one year of operation ]

Secondary Outcome Measures:
  • overall category of airway obstruction on polysomnogram (e.g. normal, mild, moderate, severe obstructive sleep apnea) [ Time Frame: within one year of operation ]

Estimated Enrollment: 757
Study Start Date: January 2002
Estimated Study Completion Date: December 2018
Estimated Primary Completion Date: December 2018 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: control
If laryngomalacia is found, then in the control group, no supraglottoplasty will be performed. Only the tonsils and adenoids will be removed.
Experimental: Treatment

If laryngomalacia is found, then in the Treatment group, a supraglottoplasty with laser will be performed, as well as removal of the tonsils and adenoids.

Intervention: supraglottoplasty with laser

Procedure: supraglottoplasty with laser
Polysomnogram, fiberoptic flexible laryngoscopy, adenotonsillectomy, direct laryngoscopy, bronchoscopy, laser supraglottoplasty, general anesthesia, a proton-pump inhibitor ibuprofen, acetaminophen with codeine without alcohol, or other narcotic containing medication, antibiotic, possible use of other analgesics per anesthesia None of these procedures are "new" or experimental. Our investigation pertains to a broader use of the laser supraglottoplasty to include children with obstructive sleep apnea and laryngomalacia, as opposed to the more traditional use of laser supraglottoplasty for only severe laryngomalacia in young children
Procedure: supraglottoplasty with laser
laser excision of laryngomalacia (floppy tissue) on one side of the supraglottis

Detailed Description:

If you agree to have your child be in the study, you will do the following things:

you are consenting to your child having the adenoid (tissue similar to lymph nodes, found in the back of the throat) and tonsils removed (if not previously performed), direct laryngoscopy (looking in the throat) and bronchoscopy (inspection of the lungs with a long tube-like device down the throat), and randomization (½ will be treated further, ½ will be observed) into treatment and no-treatment arms if your child is diagnosed with laryngomalacia. After starting general anesthesia (putting patient to sleep for procedure), the surgeon will perform direct laryngoscopy (look at the throat and voice box) and bronchoscopy (look at the entrance to the lungs [trachea or windpipe]). If your child is diagnosed with laryngomalacia (flopping of the tissue around the voice box, potentially causing obstruction or blockage), 50% will undergo a further treatment (laser supraglottoplasty, or removal of tissue at the entrance of the voice box) and 50% will be observed. The decision to treat or not treat will be random, as is customary for prospective research trials. All children (both treatment arms will receive a 3 week treatment of a medicine (a proton pump inhibitor) to reduce the level of stomach acid and prevent potential exposure of the larynx (voice-box) to stomach acid. If your child does not have laryngomalacia, no further treatment on the larynx (voice-box) will be performed. Next, adenotonsillectomy will be performed as is common for the Otolaryngologist performing the procedure. Postoperatively, a sleep study will be performed (identical to the preoperative study) ideally 3-6 months after surgery, (but up to one year after) to monitor your child's progress. Additional laboratory tests or drawing of blood is not routine in this procedure, but may be performed as dictated by your child's medical conditions.


Ages Eligible for Study:   1 Year to 18 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • 1 year old to 18 years of age, clinical signs or symptoms of obstructive sleep apnea (snoring, witnessed apneas, daytime somnolence, restless sleeping, or cyanosis), abnormal polysomnogram (mild, moderate, or severe OSA) including CO2 measures, failed or refused trial of CPAP, or not recommended by their pulmonologist or primary care doctor.

Exclusion Criteria:

  • prior laser supraglottoplasty, prior adenoidectomy prior tonsillectomy, stridor with cyanosis or apnea, severe respiratory distress, recurrent pneumonia (x3), Laryngeal cyst, vocal cord (VC) Paralysis, airway vascular malformation, neoplasm, subglottic hemangioma, paradoxical vocal cord (VC) motion, posterior glottic stenosis, glottic webs, discoordinate pharyngolaryngomalacia, or refusal to participate.
  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: NCT00394550

Contact: Bruce H Matt, MD, MSc 317-944-6670
Contact: Heather Humphery 317-944-6670

United States, Indiana
Riley Childrens' Hospital Recruiting
Indianapolis, Indiana, United States, 46202
Contact: Shelley Bizila    317-274-8289   
Principal Investigator: Bruce H Matt, MD, MSc         
Sponsors and Collaborators
Indiana University School of Medicine
Principal Investigator: Bruce H. Matt, MD, MSc Indiana University School of Medicine
  More Information

Responsible Party: Bruce Matt, Associate Professor, Indiana University Identifier: NCT00394550     History of Changes
Other Study ID Numbers: 1011003593
Study First Received: October 30, 2006
Last Updated: November 16, 2016

Keywords provided by Bruce Matt, Indiana University:
obstructive sleep apnea
airway obstruction

Additional relevant MeSH terms:
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms, Respiratory
Signs and Symptoms
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases
Cartilage Diseases
Musculoskeletal Diseases
Laryngeal Diseases
Otorhinolaryngologic Diseases
Musculoskeletal Abnormalities
Congenital Abnormalities
Connective Tissue Diseases processed this record on September 21, 2017