Effect of Obesity on the Respiratory Parameters in Children with Obstructive Sleep Apnea Syndrome
Carolina Caliendo1, Rossella Femiano1, Giuseppina Rosaria Umano2
1Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy.
Insights
Obesity does not strongly correlate with obstructive sleep apnea syndrome (OSAS) in children. However, higher Body Mass Index (BMI) is associated with increased Apnea-Hypopnea Index (AHI) severity in pediatric OSAS patients.
Area of Science:
- Pediatric Pulmonology
- Sleep Medicine
- Obesity Research
Background:
- Obstructive Sleep Apnea Syndrome (OSAS) is a prevalent condition in children.
- The influence of obesity on OSAS respiratory parameters requires further investigation.
Purpose of the Study:
- To investigate the relationship between obesity and sleep respiratory parameters in children with OSAS.
- To determine if higher Body Mass Index (BMI) affects the severity of OSAS.
Main Methods:
- Analysis of 56 Caucasian children and adolescents (age 11 ± 2.79 years) with BMI > 5th percentile.
- Division into Obesity Group (OG, BMI ≥ 95th percentile) and Control Group (CG, 5th < BMI < 95th percentile).
- Assessment of respiratory parameters including Apnea-Hypopnea Index (AHI), Oxygen Desaturation Index (ODI), and lowest SaO2 (Nadir) via Polysomnography (PG).
Main Results:
- A statistically significant difference was observed between groups for ODI (p = 0.02).
- A significant correlation was found between BMI and AHI (r = 0.02), SaO2 (r = 0.01), and Nadir O2 (r = 0.02).
Conclusions:
- No strong direct correlation between obesity and OSAS was identified.
- A positive association exists between higher BMI and increased AHI severity in pediatric OSAS.
Abstract:
The aim of the study was to investigate how obesity can influence sleep respiratory parameters in obstructive sleep apnea syndrome (OSAS) in children.
Methods:
The study analyzes 56 Caucasian children and adolescents aged 11 ± 2.79 years with a BMI > 5th percentiles and a PSQ value ≥ 0.33. Children were divided into Obesity Group (OG) with BMI ≥ 95th and Control Group (CG) with 5th < BMI > 95th percentile. All selected children underwent PG. Respiratory parameters AHI (Apnea-Hypopnea Index), SaO2 (Saturation of Oxygen), ODI (Oxygen Desaturation Index), and Nadir (the lowest value of SaO2 registered during PG) were extracted from the PG. AHI was used to divide the severity of OSAS into four levels: snoring (AHI ≤ 1), mild (AHI > 1 and ≤5), moderate (AHI > 5 and <10), and severe (AHI ≥ 10).
Results:
The comparison analysis between the OG and CG showed a statistical significance only for ODI (p = 0.02). A statistically significant correlation between BMI and AHI (r = 0.02), SaO2 (r = 0.01), and Nadir O2 (r = 0.02) was found.
Conclusions:
There was no strong correlation between obesity and OSAS, but a positive association was found between BMI and AHI severity.
Related Concept Videos
Sleep Apnea
The condition is more prevalent among...
Obesity
Factors Affecting Respiration
Physical Assessment of the Respiratory Tract II: Inspection
Chest Configuration
The chest configuration...
Factors Affecting Pulmonary Ventilation
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Other Pulmonary Disorders


