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Comparison of Tapered- vs. Cylindrical-shaped Tube Cuffs Pressure Alteration With Nitrous Oxide

Anesthesia Intubation Complication Clinical Trial

Official title:
Comparison of Tapered- vs. Cylindrical-shaped Tube Cuffs Pressure Alteration With Nitrous Oxide Diffusion Under General Anesthesia

Clinical Trial Summary

When using nitrous oxide for general anesthesia, nitrous oxide diffusion induces intracuff hyperinflation of the endotracheal tube. Furthermore the difference among various types of cuffed endotracheal tubes in cuff pressure behavior during nitrous oxide exposure.

TaperGuard(TM) tube has been newly introduced and has tapered-shape cuff. In vitro study, the intracuff pressure of TaperGuard(TM) tube was lower than that of conventional tube with cylindrical-shaped cuff of the conventional tube(Hi-Lo(TM) tube). Therefore, this clinical study is needed to evaluate the intracuff pressure during general anesthesia with nitrous oxide exposure.

Clinical Trial Description

During 60 minutes after routine anesthetic induction and intubation of the endotracheal tubes, intracuff pressures will be measured every 10 minutes with a manometer (VBM, Sulz, Germany).

60% nitrous oxide will be added at time 0. For 60 minutes from the beginning of general anesthesia, intracuff pressures will be measured every 10 minutes.

After 60 minutes, Intracuff pressures will be maintained around 20 cm H2O during the remaining period of the surgery.

The questionnaire for a sore throat, hoarseness, and dysphagia will be questioned at about 1, 6, and 24 hours after the surgery and the general anesthesia. ;

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor)

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01812915
Study type Interventional
Source DongGuk University
Contact
Status Completed
Phase N/A
Start date January 2014
Completion date April 2015
View Details
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