Modelling metabolic performance in paediatric obstructive sleep disordered breathing: A case-control study

Area of Science:

• Pediatric Cardiology
• Sleep Medicine
• Exercise Physiology

Background:

• Paediatric obstructive sleep disordered breathing (OSDB) significantly impacts cardiovascular physiology.
• The effects of OSDB on children's basal metabolism and exercise response remain largely unknown.
• Understanding these metabolic consequences is crucial for comprehensive patient care.

Purpose of the Study:

• To estimate and model the resting and exercise metabolism in children with OSDB.
• To compare metabolic parameters between children with and without OSDB.
• To provide insights into the physiological impact of OSDB on pediatric populations.

Main Methods:

• Retrospective case-control analysis of 1256 children undergoing otorhinolaryngology surgery.
• Measurement of heart rate (HR).
• Estimation of oxygen consumption (VO2) and energy expenditure (EE) at rest and during exercise using predictive equations.

Main Results:

• Children with OSDB exhibited higher resting HR, VO2, and EE compared to controls (p<0.05).
• Patients with OSDB demonstrated lower maximal VO2 (VO2max) and EE during maximal exercise (p<0.01).
• The increase in VO2 and EE with exercise (Δ VO2 and Δ EE) was significantly lower in the OSDB group across all intensities (p<0.01).

Conclusions:

• Paediatric OSDB is associated with elevated basal metabolic rates.
• Children with OSDB display impaired exercise performance and reduced cardiorespiratory fitness.
• The findings support a link between OSDB, altered metabolism, and cardiovascular impairment in children.