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Apneic Oxygenation Via Nasal Cannulae Prevents Arterial Hypoxemia

Hypoxia Clinical Trial

Official title:
Oxygenation Via Nasal Cannulae Prevents Arterial Hypoxemia During the Apneic Period in Paralyzed Patients

Clinical Trial Summary

The purpose of the study is to evaluate the effectiveness of continuous oxygen provided by nasal prongs in preventing or delaying hypoxemia during the apneic period that occurs after induction of general anesthesia. This will be evaluated by measuring the arterial oxygen tension (PaO2).

The study will also evaluate whether there is any difference in PaO2 when using nasal prongs with flow rates of 5 L/minute versus 10 L/minute of oxygen.

Clinical Trial Description

Certain patient populations are at risk for rapid desaturation and the rapid development of hypoxemia (eg. morbidly obese and pregnant patients). Using pulse oximetry, it has already been shown that oxygen provided with a catheter inserted into the nasopharynx is effective in delaying the desaturation that occurs with apnea before the trachea is intubated. It has also been shown that apneic oxygenation with nasal prongs at 5 L/min during fibreoptic intubation can delay the onset of hypoxemia.

The study will evaluate whether there is any significant difference in the PaO2 (arterial oxygen tension, as measured by an arterial blood gas) when nasal prongs are used to provide apneic oxygenation in paralyzed patients at flows of 5 L/min compared to 10 L/min.

The study aims to demonstrate that apneic oxygenation using nasal prongs is effective in preventing or delaying hypoxemia (by measuring PaO2), and that this technique may be used to prevent morbidity and mortality in all clinical areas (not only in the Operating Room environment) where airway management is undertaken. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00782977
Study type Interventional
Source University of Manitoba
Contact
Status Completed
Phase N/A
Start date November 2008
Completion date December 2012
View Details
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