Related Experiment Video

Updated: Dec 9, 2025

A Novel Rescue Technique for Difficult Intubation and Difficult Ventilation
04:46

A Novel Rescue Technique for Difficult Intubation and Difficult Ventilation

Published on: January 17, 2011

21.9K

A Retrospective Evaluation of Airway Anatomy in Young Children and Implications for One-Lung Ventilation

Martina G Downard1, Amy J Lee1, Christopher J Heald2

  • 1Department of Anesthesiology, Wake Forest School of Medicine, Winston-Salem, NC.

Journal of Cardiothoracic and Vascular Anesthesia
|September 14, 2020
PubMed

Insights

Understanding pediatric lower airway anatomy is crucial for successful one-lung ventilation (OLV) in children. This study provides key measurements to guide endotracheal tube and bronchial blocker selection for safer OLV procedures.

Area of Science:

  • Pediatric Anesthesiology
  • Thoracic Surgery
  • Pediatric Respiratory Anatomy

Background:

  • One-lung ventilation (OLV) in pediatric patients is challenging due to limited anatomical data.
  • Establishing best practices for OLV in children requires detailed lower airway measurements.

Purpose of the Study:

  • To describe lower airway anatomy in children younger than 8 years.
  • To provide data to guide the selection of equipment for pediatric OLV.

Main Methods:

  • Retrospective observational study of 111 children (<8 years old).
  • Analysis of chest computed tomographic scans.
  • Measurements of tracheal and bronchial dimensions, including carina to lobar branch lengths.

Main Results:

  • The left mainstem bronchus is smaller than the right.
  • Specific recommendations for endotracheal tube sizing for left-sided OLV.
  • Guidance on age-based transitions for bronchial blocker sizes (5F to 7F Arndt at 3-4 years).

Conclusions:

  • Detailed pediatric airway anatomy knowledge aids successful OLV.
  • Anatomical data can improve the safety and efficacy of OLV in young children.
Abstract

Keywords:
anesthesialower airway anatomypediatricsingle-lung ventilation

More Related Videos

Image Acquisition using Portable Sonography for Emergency Airway Management07:31

Image Acquisition using Portable Sonography for Emergency Airway Management

Published on: September 28, 2022

2.8K
Laryngeal Mask Airway LMA Placement in a Neonatal Patient Simulator Using a Non-Inflatable Supraglottic Airway SGA04:56

Laryngeal Mask Airway LMA Placement in a Neonatal Patient Simulator Using a Non-Inflatable Supraglottic Airway SGA

Published on: July 14, 2023

4.3K

Related Concept Videos

Cardiopulmonary Resuscitation II: ACLS Airway Management01:22

Cardiopulmonary Resuscitation II: ACLS Airway Management

Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned...
361
Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
1.4K
Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques01:30

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Airway management is essential in emergency and surgical medicine, ensuring ventilation and oxygenation in patients who cannot maintain their own airway. Clinicians use a range of techniques and devices to secure the airway, depending on the patient’s condition and the clinical context. Key methods include endotracheal intubation, rapid sequence intubation (RSI), supraglottic airway devices, and advanced visualization aids. In cases where these approaches fail, surgical airway...
310
Respiratory Volumes01:15

Respiratory Volumes

Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
2.6K
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:
2.1K
Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
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...
2.5K