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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00394550
Recruitment Status : Active, not recruiting
First Posted : November 1, 2006
Last Update Posted : February 26, 2019
Information provided by (Responsible Party):
Bruce Matt, Indiana University School of Medicine

Brief Summary:

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 or disease Intervention/treatment Phase
Sleep Apnea, Obstructive Respiration Disorders Procedure: supraglottoplasty with laser Not Applicable

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.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 160 participants
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
Actual Study Start Date : January 2002
Estimated Primary Completion Date : December 2019
Estimated Study Completion Date : December 2019

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Sleep Apnea

Arm Intervention/treatment
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

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

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

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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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.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00394550

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United States, Indiana
Riley Childrens' Hospital
Indianapolis, Indiana, United States, 46202
Sponsors and Collaborators
Indiana University School of Medicine
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Principal Investigator: Bruce H. Matt, MD, MSc Indiana University School of Medicine

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Responsible Party: Bruce Matt, Associate Professor, Indiana University School of Medicine Identifier: NCT00394550     History of Changes
Other Study ID Numbers: 1011003593
First Posted: November 1, 2006    Key Record Dates
Last Update Posted: February 26, 2019
Last Verified: February 2019
Keywords provided by Bruce Matt, Indiana University School of Medicine:
obstructive sleep apnea
airway obstruction
Additional relevant MeSH terms:
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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