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Author Mikaeili, Haleh ♦ Ansarin, Khalil ♦ Ghasemzadeh, Maryam ♦ Yazdchi, Mohammad ♦ Tarzamni, Mohammad Kazem
Source Directory of Open Access Journals (DOAJ)
Content type Text
Publisher Tabriz University of Medical Sciences
File Format PDF
Date Created 2015-12-15
Copyright Year ©2014
Language English
Subject Domain (in LCC) RC666-701
Subject Keyword Laryngeal ultrasonography ♦ Internal medicine ♦ Postextubation Stridor ♦ Medicine ♦ Cuff leak Test ♦ Specialties of internal medicine
Abstract Introduction: Although cuff leak test has been proposed as a simple method of predicting the occurrence of postextubation stridor, cut-off point of cuff-leak volume substantially differs between previous studies. In addition, laryngeal ultrasonography including measurement of air column width could predict postextubation stridor. The aim of the present study was to evaluate the value of laryngeal ultrasonography versus cuff leak test in predicting postextubation stridor.Methods: In a prospective study, all patients intubated for a minimum of 24 h for acute respiratory failure, airway protection and other causes were included. Patients were evaluated for postextubation stridor and need for reintubation after extubation. The cuff leak volume was defined as a difference between expiratory tidal volumes with the cuff inflated and deflated. Laryngeal air column width was defined as the width of air passed through the vocal cords as determined by laryngeal ultrasonography. The air-column width difference was the width difference between balloon-cuff inflation and deflation.Results: Forty one intubated patients with the mean age of 57.16±20.07 years were included. Postextubation stridor was observed in 4 patients (9.75%). Cuff leak test (cut off point: 249 mL) showed sensitivity and specificity of 75% and 59%, respectively. In addition, laryngeal ultrasonography (cut off point for air column width: 10.95 mm) resulted in sensitivity and specificity of 50% and 54%, respectively. Positive predictive value of both methods were <20%.Conclusion: Both cuff leak test and laryngeal ultrasonography have low positive predictive value and sensitivity in predicting postextubation stridor and should be used with caution in this regard.
ISSN 20085117
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2014-03-01
e-ISSN 20085117
Journal Journal of Cardiovascular and Thoracic Research
Volume Number 6
Issue Number 1
Page Count 4
Starting Page 25
Ending Page 28


Source: Directory of Open Access Journals (DOAJ)