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Effect of Head Turn on Double-Lumen Tube Alignment
Sponsor: Taipei Veterans General Hospital, Taiwan
Summary
This study evaluated how simple external airway maneuvers affect the alignment of the left main bronchus during placement of a left-sided double-lumen endotracheal tube. Adults undergoing elective thoracic surgery requiring one-lung ventilation were enrolled. During double-lumen tube placement, a fiberoptic bronchoscope was used to continuously view the airway. Each participant underwent three sequential maneuvers: rightward displacement of the trachea, turning the head 45 degrees to the right, and turning the head 45 degrees to the left. The investigators measured how far the opening of the left main bronchus moved on the bronchoscopic image and whether it crossed the center of the image. The purpose of the study was to determine how these maneuvers change airway alignment and whether they may help guide a left-sided double-lumen tube toward the left main bronchus.
Official title: The Efficacy of Right Displacement of Trachea on Double Lumen Tube Intubation Under Fiberscope
Key Details
Gender
All
Age Range
Any - Any
Study Type
INTERVENTIONAL
Enrollment
35
Start Date
2024-04-10
Completion Date
2025-06-27
Last Updated
2026-08-10
Healthy Volunteers
No
Conditions
Interventions
Right Tracheal Displacement
A lateral force was applied externally at the left cricothyroid level to displace the trachea toward the right. The force was increased until maximal bronchoscopic displacement was observed. Peak applied force was recorded using a digital force gauge. Bronchoscopic alignment and horizontal displacement of the left main bronchus were assessed during the maneuver.
Right Head Turn Maneuver
The participant's head was rotated 45° to the right from the neutral position. Bronchoscopic alignment and horizontal displacement of the left main bronchus were assessed during the maneuver. The head was subsequently returned to the neutral position.
Left Head Turn Maneuver
The participant's head was rotated 45° to the left from the neutral position. Bronchoscopic alignment and horizontal displacement of the left main bronchus were assessed during the maneuver. The head was subsequently returned to the neutral position.
Locations (1)
Taipei Veterans General Hospital
Taipei, Taiwan