Related Experiment Video

Updated: May 13, 2026

A Model to Simulate Clinically Relevant Hypoxia in Humans
09:54

A Model to Simulate Clinically Relevant Hypoxia in Humans

Published on: December 22, 2016

Comparison of oxygen desaturation patterns in children and adults with sleep-disordered breathing

Yuki Hara1, Akiko Noda, Seiko Miyata

  • 1Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Japan.

American Journal of Otolaryngology
|March 5, 2013
PubMed

Insights

The apnea-hypopnea index (AHI) may not accurately assess sleep-disordered breathing (SDB) in children. Oxygen desaturation (ΔSpO₂) is a better indicator of pediatric SDB severity than AHI alone.

Area of Science:

  • Pediatric Pulmonology
  • Sleep Medicine
  • Respiratory Physiology

Background:

  • The apnea-hypopnea index (AHI) is standard for evaluating adult sleep-disordered breathing (SDB).
  • AHI may not accurately reflect SDB severity in pediatric populations.
  • Adenotonsillar hypertrophy is a common cause of SDB in children.

Purpose of the Study:

  • To investigate differences in SDB patterns between children and adults.
  • To evaluate the effectiveness of AHI and oxygen desaturation (ΔSpO₂) in characterizing pediatric SDB severity.

Main Methods:

  • Standard polysomnography was performed on 15 children and 15 adults with adenotonsillar hypertrophy.
  • Apnea-hypopnea episodes were defined by airflow cessation duration (≥10s or ≥2 breaths).
  • Oxygen desaturation (ΔSpO₂) was measured as the difference between baseline and lowest SpO₂ during events.

Main Results:

  • Children exhibited greater ΔSpO₂ during short obstructive apneas (≤10s) compared to adults.
  • The relationship between ΔSpO₂ and apnea duration was steeper in children than adults.
  • AHI was significantly higher in children when using a definition of ≥2 consecutive breaths for an event.

Conclusions:

  • Oxygen desaturation (ΔSpO₂) is a valuable indicator for assessing SDB severity in children.
  • ΔSpO₂ should be considered alongside AHI in the diagnosis and management of pediatric SDB.
Abstract

More Related Videos

Multi-Modal Home Sleep Monitoring in Older Adults07:40

Multi-Modal Home Sleep Monitoring in Older Adults

Published on: January 26, 2019

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea07:54

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea

Published on: December 6, 2016

Related Concept Videos

Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is important. 
Alterations in Respiration II01:30

Alterations in Respiration II

There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes include...
Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration can...
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

Assessment of Ventilation II: Respiratory Depth and Rhythm

Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...