Clinical trial NCT01322763: Prevalence of Sleep Apnea/Hypopnea Syndrome in Obese Children
Official title: Prevalence of Sleep Apnea/Hypopnea Syndrome in Obese Children. The Significance of Hormonal Factors
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Sleep Apnea
Children
Obesity
Lead sponsor: Sociedad Española de Neumología y Cirugía Torácica
Sponsor class: OTHER
First posted: 2011-03-25
Enrollment: 200
Sex: ALL
Minimum age (years): 3
Maximum age (years): 14
Standard ages: CHILD
Accepts healthy volunteers: no
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: The population of study will be make for children of both sex, between 3 and 14 years old and with body mass index (BMI) ≥ 95 percentile and with informed consent.

Brief summary: Principal aim: To determine the prevalence of Sleep Apnea- Hypopnea syndrome in obese children.

Secondary aim: 1. To fix the implication of the adenotonsillar hypertrophy, the obesity and the hormonal factors in the pathogeny of SAHS in children. 2. To determinate of clinical and neurophysiologic characteristics of childhood SAHS associated with obesity. DESIGN: A prospective transversal study.

Detailed description: The population of study will be make for children of both sex, between 3 and 14 years old and with body mass index (BMI) ≥ 95 percentile and with informed consent. METHODS: In all children included in the study, the investigators will carry out: previous history, history of snoring and Chervin´s screening questionnaire of SAHS, general physical and otorhinolaryngologic examination with nasopharyngoscopy, blood test with determination of glucose, lipids, insulin, leptin, adiponectin, and ghrelin, polysomnography (PSG) with transcutaneous CO2. The diagnosis of SAHS will be made if on PSG the Respiratory disturbance Index (RDI) is ≥ 3 and/or obstructive hypoventilation is present.

Eligibility criteria: Inclusion Criteria:

* Children of both sex, between 3 and 14 years old
* Body mass index (BMI) ≥ 95 percentile
* With informed consent.

Exclusion Criteria:

* Without informed consent

Primary outcomes:
Secondary outcomes:
Other outcomes:
Locations:
city: Burgos
country: Spain
facility: Complejo Asistencial Universitario de Burgos
Study officials:
affiliation: Sleep Unit. Complejo Asistencial Universitario Burgos. Spain
name: Maria Luz Alonso-Álvarez, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Alonso-Alvarez ML, Teran-Santos J, Gonzalez Martinez M, Cordero-Guevara JA, Jurado-Luque MJ, Corral-Penafiel J, Duran-Cantolla J, Ordax Carbajo E, MasaJimenez F, Kheirandish-Gozal L, Gozal D; Spanish Sleep Network. Metabolic biomarkers in community obese children: effect of obstructive sleep apnea and its treatment. Sleep Med. 2017 Sep;37:1-9. doi: 10.1016/j.sleep.2017.06.002. Epub 2017 Jun 22.
citation: Alonso-Alvarez ML, Teran-Santos J, Navazo-Eguia AI, Martinez MG, Jurado-Luque MJ, Corral-Penafiel J, Duran-Cantolla J, Cordero-Guevara JA, Kheirandish-Gozal L, Gozal D; Spanish Sleep Network. Treatment outcomes of obstructive sleep apnoea in obese community-dwelling children: the NANOS study. Eur Respir J. 2015 Sep;46(3):717-27. doi: 10.1183/09031936.00013815. Epub 2015 Jun 11.
citation: Kheirandish-Gozal L, Gileles-Hillel A, Alonso-Alvarez ML, Peris E, Bhattacharjee R, Teran-Santos J, Duran-Cantolla J, Gozal D. Effects of adenotonsillectomy on plasma inflammatory biomarkers in obese children with obstructive sleep apnea: A community-based study. Int J Obes (Lond). 2015 Jul;39(7):1094-100. doi: 10.1038/ijo.2015.37. Epub 2015 Mar 24.
citation: Gileles-Hillel A, Alonso-Alvarez ML, Kheirandish-Gozal L, Peris E, Cordero-Guevara JA, Teran-Santos J, Martinez MG, Jurado-Luque MJ, Corral-Penafiel J, Duran-Cantolla J, Gozal D. Inflammatory markers and obstructive sleep apnea in obese children: the NANOS study. Mediators Inflamm. 2014;2014:605280. doi: 10.1155/2014/605280. Epub 2014 Jun 1.
citation: Alonso-Alvarez ML, Cordero-Guevara JA, Teran-Santos J, Gonzalez-Martinez M, Jurado-Luque MJ, Corral-Penafiel J, Duran-Cantolla J, Kheirandish-Gozal L, Gozal D. Obstructive sleep apnea in obese community-dwelling children: the NANOS study. Sleep. 2014 May 1;37(5):943-9. doi: 10.5665/sleep.3666.