Abstract
Sato M, Tohara H, Iida T, Wada S, Inoue M, Ueda K. Simplified cough test for screening
silent aspiration.
Objective
To simplify the cough test to screen silent aspiration without sacrificing accuracy.
Design
Criterion standard.
Setting
University dental hospital.
Participants
Consecutive patients (N=141; 92 men, 49 women; mean age 71±14y, range 23–94y) who
had complained of some dysphagic symptoms between June 2008 and February 2010.
Interventions
All patients were administrated a simplified cough test and underwent the fiberoptic
endoscopic evaluation of swallowing. Citric acid inhalation was terminated when the
first cough occurred, and the time between the start of inhalation and the first cough
was measured.
Main Outcome Measures
The time when the first cough was observed by the simplified cough test was compared
with the results of the fiberoptic endoscopic evaluation of swallowing, which was
used as a criterion standard.
Results
Receiver operating characteristic curve analysis was performed for 53 patients evaluated
as having aspiration by fiberoptic endoscopic evaluation of swallowing. We found that
30 seconds or less was an appropriate cutoff value for detecting patients without
silent aspiration, where the sensitivity was .92 and the specificity was .94. From
the receiver operating characteristic curve analyses for all patients, 60 seconds
or less was determined to be an appropriate cutoff, and the sensitivity and specificity
were .81 and .65, respectively.
Conclusion
The simplified cough test is a useful screening tool for silent aspiration in patients
with aspiration.
Key Words
List of Abbreviations:
AUC (area under the receiver operating characteristic curve), FEES (fiberoptic endoscopic evaluation of swallowing), NPV (negative predictive value), RAR (rapidly adapting receptor), ROC (receiver operating characteristic), SCT (simplified cough test)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: June 06, 2012
Footnotes
Supported by a Grant-in-Aid for Scientific Research (Young Scientists (B) Grant No. 22792126).
No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit on the authors or on any organization with which the authors are associated.
In-press corrected proof published online on Jul 6, 2012, at www.archives-pmr.org.
Identification
Copyright
© 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.
