Diagnostic Accuracy of the Modified Evan's Blue Dye Test in Detecting Aspiration in Patients with Tracheostomy: A Systematic Review of the Evidence
Dysphagia
Bechet, S., Hill, F., et al. (2016).
Dysphagia, 31(6), 721-729.
This systematic review compares the diagnostic accuracy of the modified Evan's Blue Dye Test (MEBDT) to reference standard tests (e.g., videofluoroscopy, fiberoptic endoscopic evaluation) in assessing oropharyngeal aspiration in tracheostomized adults.
Not stated
October 2014 to April 2016
Retrospective and prospective study designs
6
<div>Preliminary evidence reported the following psychometric properties for the modified Evan's Blue Dye Test when used to detect aspiration in adults with tracheostomy:</div>
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<ul>
<li>sensitivity = 38%-95%;</li>
<li>specificity = 79%-100%;</li>
<li>positive predictive value = 68%-100%;</li>
<li>negative predictive value = 40%-90%;</li>
<li>positive likelihood ration = 2.99 to infinity;</li>
<li>negative likelihood ratio = 0.48-0.61.</li>
</ul>
<div>However, given the limited number of studies and high variability among patient samples and test administration procedures, further research is warranted.</div>
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