Adenotonsillectomy for Obstructive Sleep-Disordered Breathing in Childhood:The Chania Community Oximetry-Based Study

NCT ID: NCT01918007

Last Updated: 2023-11-13

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

186 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-06-30

Study Completion Date

2016-08-31

Brief Summary

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Obstructive sleep-disordered breathing (SDB) in childhood is a disorder of breathing during sleep characterized by intermittent upper airway obstruction. Snoring, labored breathing and apneas reported by the parents are the most frequent symptoms.Obstructive SDB can result from many different abnormalities including large adenoids and tonsils or obesity.

Intermittent upper airway obstruction during sleep is accompanied by low oxygen or high carbon dioxide in the blood and arousals from sleep. If obstructive SDB is not treated, complications may develop such as: i) enuresis; ii) delay in somatic growth rate; iii) central nervous system morbidity (e.g. hyperactivity and learning difficulties); and iv) elevated blood pressure.

Overnight polysomnography (PSG) is considered the gold-standard method for defining severity of obstructive SDB and subgroups of children with snoring who should be treated. However, PSG is a labor-intensive, time-consuming and expensive diagnostic method, which is not available in many community settings. Thus, there is an urgent need for developing easy-to-use and low-cost diagnostic methods which can be used to determine severity of obstructive SDB and define subgroups of children with snoring and large adenoids and tonsils who will benefit from adenotonsillectomy (AT).

Pulse oximetry is a widely available, non-invasive method which allows continuous monitoring of oxygen transport by hemoglobin. Episodes of upper airway obstruction are frequently accompanied by reductions in the hemoglobin oxygen transport (oxygen desaturation of hemoglobin).The hypothesis of this research project is that subgroups of children with snoring and adenotonsillar hypertrophy and certain abnormalities in oxygenation detected by nocturnal pulse oximetry will benefit from AT in a community setting.

Detailed Description

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Time in the waiting list for undergoing AT at the Department of Otorhinolaryngology, Chania General Hospital "St. George" is approximately 3 months. In the present study, children will be recruited and randomized in the Active Comparator (AT group) or in the Control Group (No AT group) at the time of the initial clinic visit, if they fulfill the Inclusion Criteria and their parents consent to participation in the study.

Children in the AT group will undergo the baseline study evaluation at the end of the 3-month waiting time and thus immediately prior to AT. They will also undergo the follow-up study evaluation at 3 months postoperatively.

Children in the Control group will undergo their baseline study evaluation at the time of entering the surgical waiting list. They will undergo the follow-up study evaluation 3 months later, immediately prior to AT.

Conditions

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Sleep Disordered Breathing Obstructive Sleep Apnea Snoring Obstructive Sleep Disordered Breathing

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

Study Groups

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AT (adenotonsillectomy) Group

AT (adenotonsillectomy) immediately after the baseline study evaluation

Group Type ACTIVE_COMPARATOR

Adenotonsillectomy (AT)

Intervention Type PROCEDURE

Standard surgical intervention for treatment of obstructive sleep-disordered (SDB).

Control Group

No AT (adenotonsillectomy) for 3 months after the baseline study evaluation

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Adenotonsillectomy (AT)

Standard surgical intervention for treatment of obstructive sleep-disordered (SDB).

Intervention Type PROCEDURE

Other Intervention Names

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Removal of adenoids and tonsils

Eligibility Criteria

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Inclusion Criteria

* Diagnosed with obstructive SDB (snoring \>3 nights/week over the last 6 months)
* Tonsillar size \>2 \[Brodsky 1989\]
* Considered as an AT candidate during the clinic visit by ear, nose and throat (ENT) surgeon

Exclusion Criteria

* Recurrent tonsillitis defined as at least 3 episodes in each of the last 3 years or at least 5 episodes in each of the last 2 years or at least 7 episodes in the past year.
* Apparent craniofacial anomalies (e.g. Crouzon syndrome or Pierre-Robin sequence)
* Obstructive breathing while awake or any other clinical signs that merit prompt AT as recommended by the treating ENT physician.
* History of clinically important cardiovascular disease or cardiac arrhythmia.
* History of: sickle cell disease; symptomatic asthma; epilepsy; use of sedative medication
* History of: genetic disorders; neurological or neuromuscular disorders
* Use of: systemic or intranasal corticosteroids; montelukast

Footnote

Brodsky score Upon inspection of the oropharynx

* grade 1 indicates that the tonsils are hidden in the pillars
* grade 2 indicates that the tonsils are beyond the anterior pillar and occupy between 25 and 50% of the pharyngeal space
* grade 3 indicates that the tonsils are beyond the pillars but not to the middle and occupy \>50% and up to 75% of the pharyngeal space
* grade 4 indicates that the tonsils occupy \>75% of the pharyngeal space
Minimum Eligible Age

4 Years

Maximum Eligible Age

10 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Aghia Sophia Children's Hospital of Athens

OTHER

Sponsor Role collaborator

Chania General Hospital "St. George"

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Chariton E. Papadakis, MD

Role: STUDY_DIRECTOR

Chania General Hospital "St. George"

Athanasios G. Kaditis, MD

Role: STUDY_CHAIR

Aghia Sophia Children's Hospital of Athens

Theognosia S. Chimona, MD

Role: PRINCIPAL_INVESTIGATOR

Chania General Hospital "St. George"

Panagiota N. Asimakopoulou, MD

Role: PRINCIPAL_INVESTIGATOR

Chania General Hospital "St. George"

Efklidis Proimos, MD

Role: PRINCIPAL_INVESTIGATOR

Chania General Hospital "St. George"

Konstantinos Chaidas, MD

Role: PRINCIPAL_INVESTIGATOR

Aghia Sophia Children's Hospital of Athens

Alexandra Klimentopoulou, MD

Role: PRINCIPAL_INVESTIGATOR

Aghia Sophia Children's Hospital of Athens

Locations

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Aghia Sophia Children's Hospital of Athens

Athens, , Greece

Site Status

Chania General Hospital "St. George"

Chania, , Greece

Site Status

Countries

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Greece

References

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Nixon GM, Kermack AS, Davis GM, Manoukian JJ, Brown KA, Brouillette RT. Planning adenotonsillectomy in children with obstructive sleep apnea: the role of overnight oximetry. Pediatrics. 2004 Jan;113(1 Pt 1):e19-25. doi: 10.1542/peds.113.1.e19.

Reference Type BACKGROUND
PMID: 14702490 (View on PubMed)

Saito H, Araki K, Ozawa H, Mizutari K, Inagaki K, Habu N, Yamashita T, Fujii R, Miyazaki S, Ogawa K. Pulse-oximetery is useful in determining the indications for adeno-tonsillectomy in pediatric sleep-disordered breathing. Int J Pediatr Otorhinolaryngol. 2007 Jan;71(1):1-6. doi: 10.1016/j.ijporl.2006.08.009. Epub 2006 Sep 25.

Reference Type BACKGROUND
PMID: 16997385 (View on PubMed)

Bonuck KA, Freeman K, Henderson J. Growth and growth biomarker changes after adenotonsillectomy: systematic review and meta-analysis. Arch Dis Child. 2009 Feb;94(2):83-91. doi: 10.1136/adc.2008.141192. Epub 2008 Aug 6.

Reference Type BACKGROUND
PMID: 18684748 (View on PubMed)

Wijga AH, Scholtens S, Wieringa MH, Kerkhof M, Gerritsen J, Brunekreef B, Smit HA. Adenotonsillectomy and the development of overweight. Pediatrics. 2009 Apr;123(4):1095-101. doi: 10.1542/peds.2008-1502.

Reference Type BACKGROUND
PMID: 19336367 (View on PubMed)

Villa MP, Paolino MC, Castaldo R, Vanacore N, Rizzoli A, Miano S, Del Pozzo M, Montesano M. Sleep clinical record: an aid to rapid and accurate diagnosis of paediatric sleep disordered breathing. Eur Respir J. 2013 Jun;41(6):1355-61. doi: 10.1183/09031936.00215411. Epub 2012 Sep 27.

Reference Type BACKGROUND
PMID: 23018902 (View on PubMed)

Chervin RD, Hedger K, Dillon JE, Pituch KJ. Pediatric sleep questionnaire (PSQ): validity and reliability of scales for sleep-disordered breathing, snoring, sleepiness, and behavioral problems. Sleep Med. 2000 Feb 1;1(1):21-32. doi: 10.1016/s1389-9457(99)00009-x.

Reference Type BACKGROUND
PMID: 10733617 (View on PubMed)

Melendres MC, Lutz JM, Rubin ED, Marcus CL. Daytime sleepiness and hyperactivity in children with suspected sleep-disordered breathing. Pediatrics. 2004 Sep;114(3):768-75. doi: 10.1542/peds.2004-0730.

Reference Type BACKGROUND
PMID: 15342852 (View on PubMed)

Alexopoulos EI, Kostadima E, Pagonari I, Zintzaras E, Gourgoulianis K, Kaditis AG. Association between primary nocturnal enuresis and habitual snoring in children. Urology. 2006 Aug;68(2):406-9. doi: 10.1016/j.urology.2006.02.021.

Reference Type BACKGROUND
PMID: 16904463 (View on PubMed)

Franco RA Jr, Rosenfeld RM, Rao M. First place--resident clinical science award 1999. Quality of life for children with obstructive sleep apnea. Otolaryngol Head Neck Surg. 2000 Jul;123(1 Pt 1):9-16. doi: 10.1067/mhn.2000.105254.

Reference Type BACKGROUND
PMID: 10889473 (View on PubMed)

Constantin E, McGregor CD, Cote V, Brouillette RT. Pulse rate and pulse rate variability decrease after adenotonsillectomy for obstructive sleep apnea. Pediatr Pulmonol. 2008 May;43(5):498-504. doi: 10.1002/ppul.20811.

Reference Type BACKGROUND
PMID: 18383115 (View on PubMed)

Brodsky L. Modern assessment of tonsils and adenoids. Pediatr Clin North Am. 1989 Dec;36(6):1551-69. doi: 10.1016/s0031-3955(16)36806-7.

Reference Type BACKGROUND
PMID: 2685730 (View on PubMed)

Papadakis CE, Chaidas K, Chimona TS, Zisoglou M, Ladias A, Proimos EK, Miligkos M, Kaditis AG. Assessing the need for adenotonsillectomy for sleep-disordered breathing in a community setting: A secondary outcome measures analysis of a randomized controlled study. Pediatr Pulmonol. 2019 Oct;54(10):1527-1533. doi: 10.1002/ppul.24427. Epub 2019 Jul 3.

Reference Type DERIVED
PMID: 31270970 (View on PubMed)

Papadakis CE, Chaidas K, Chimona TS, Asimakopoulou P, Ladias A, Proimos EK, Miligkos M, Kaditis AG. Use of Oximetry to Determine Need for Adenotonsillectomy for Sleep-Disordered Breathing. Pediatrics. 2018 Sep;142(3):e20173382. doi: 10.1542/peds.2017-3382. Epub 2018 Aug 7.

Reference Type DERIVED
PMID: 30087199 (View on PubMed)

Other Identifiers

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CHANIA-ENT-01

Identifier Type: -

Identifier Source: org_study_id

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