Document Detail

Laryngeal ultrasound: a useful method in predicting post-extubation stridor. A pilot study.
MedLine Citation:
PMID:  16452597     Owner:  NLM     Status:  MEDLINE    
The cuff-leak test was widely used for the prediction of post-extubation stridor, but controversial results limit its clinical application. The current study used real-time ultrasonography to evaluate the air-leak and hypothesised that the air-column width, measured by ultrasonography, may be correlated to the development of post-extubation stridor. From June 1, 2001 to March 1, 2002, a total of 51 planned extubations in 51 consecutively intubated patients were included. All of the patients received ultrasonographical examinations of their vocal cords and larynx in addition to an air-column width measurement within 24 h prior to extubation. The overall post-extubation stridor rate was 7.8%. The air-leak volume presented as median (interquartile range) were 300 (350) mL and 25 (20) mL, respectively, for the nonstridor and stridor groups. The air-column width during cuff deflation was 6.4 (2) mm and 4.5 (0.8) mm, respectively. They were found to be statistically significant. In conclusion, the authors demonstrated that laryngeal ultrasonography could be a reliable, noninvasive method, in the evaluation of vocal cords, laryngeal morphology and the ease of airflow, which passed through vocal cords or subglottic area due to laryngeal oedema. The air-column width during cuff deflation was a potential predictor of post-extubation stridor.
L-W Ding; H-C Wang; H-D Wu; C-J Chang; P-C Yang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The European respiratory journal     Volume:  27     ISSN:  0903-1936     ISO Abbreviation:  Eur. Respir. J.     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-02-02     Completed Date:  2006-06-05     Revised Date:  2013-05-23    
Medline Journal Info:
Nlm Unique ID:  8803460     Medline TA:  Eur Respir J     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  384-9     Citation Subset:  IM    
Dept of Internal Medicine, National Taiwan University Hospital, Chung-Shan South Road, Taipei 100, Taiwan.
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MeSH Terms
Chi-Square Distribution
Device Removal
Intubation, Intratracheal / adverse effects*
Laryngeal Edema / etiology*,  ultrasonography*
Pilot Projects
Predictive Value of Tests
Respiratory Sounds / etiology*
Statistics, Nonparametric

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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