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Effect of Head Rotation on Efficiency of Face Mask Ventilation in Anesthetized Apneic Adults

Anesthesia Clinical Trial

Official title:
Effect of Head Rotation on Efficiency of Face Mask Ventilation in Anesthetized Apneic Adults: A Prospective Randomized Crossover Study

Clinical Trial Summary

Upper airway obstruction commonly occurs after induction of general anesthesia. The aim of this study is to determine if head rotation improves the efficiency of mask ventilation of anesthetized apneic adults.

Clinical Trial Description

When apnea is achieved after induction, face mask ventilation is started in either a neutral head position or a head position axially rotated 45 degrees to the right. Mask ventilation will be carried out for 1 minute (Step 1) with pressure control ventilation of an anesthesia machine at peak inspiratory pressure 15 cmH2O, 10 breaths per minute, inspiration time to expiration time ratio 1:2 and no positive end-expiratory pressure. Then, mask ventilation will continue but head position will be crossed over (Step 2) and Step 1 will be repeated (Step 3). Expiratory tidal volume (VTE) will be measured by using respiratory inductive plethysmograph. ;

Study Design

Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Open Label

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02755077
Study type Interventional
Source Massachusetts General Hospital
Contact
Status Completed
Phase N/A
Start date July 2014
Completion date January 2016
View Details
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