Pittsburgh Vocal Cord Dysfunction Index
Distinguishing vocal cord dysfunction fromasthma can be difficult. The Pittsburgh Vocal Cord Dysfunction Index is a clinical tool to help prevent the misdiagnosis and mistreatment of vocal cord dysfunction as asthma.
Research authors: Traister RS, Fajt ML, Landsittl D, and Petrov AA.
Version: 1.12
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  • Pulmonology
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In the underlying study performed by Traister et al. (2015) in 148 patients, a cutoff score of 4 gave a sensitivity of 83%, a specificity of 95%, a positive predictive value of 96%, and a negative predictive value of 77% and, given the balance of sensitivity and specificity, was determined to be the best cutoff for distinguishing VCD from asthma. By using prediction profiling, a cutoff score of 4 would give a 77% probability of having VCD.

Reference:
Traister RS, Fajt ML, Landsittel D, Petrov AA. A novel scoring system to distinguish vocal cord dysfunction from asthma. J Allergy Clin Immunol Pract. 2014;2(1):65-9.
 

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This model is provided for educational, training and information purposes. It must not be used to support medical decision making, or to provide medical or diagnostic services. Read our full disclaimer.

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