Quick Reference for Speech-Language Pathologists: Vocal Fold Function

Vocal fold function stats, differential diagnosis charts, and key features of voice various voice disorders for speech language pathologists.

Vocal fold function can be commonly mis-diagnosed before landing on the desk of a speech-language pathologist. Likewise, the expertise of a speech-language pathologist can guide further diagnosis that can reduce medications and the improve chance of proper diagnosis sooner.

This download features:

• Voice anatomy
• Quick stats on voice disorders
• Differential diagnosis between asthma and vocal fold dysfunction
• Sample of spirometer readings for vocal fold dysfunction
• Differential diagnosis between laryngospasm and vocal fold dysfunction
• Key differentiating features of the causes of vocal fold dysfunction (from Koufman et al, 2008).
• Key features of various voice disorders

Vocal fold function research
From: Koufman, J. A., & Block, C. (2008). Differential Diagnosis of Paradoxical Vocal Fold Movement. American Journal of Speech-Language Pathology, 17(4), 327. doi:10.1044/1058-0360(2008/07-0014)

Purpose: To present the differential diagnosis of paradoxical vocal fold movement (PVFM) and its distinguishing features.

Methods: The authors provide an overview of PVFM by drawing from 30 years of clinical and research experience, and relating that experience to literature in this area.

Conclusion: PVFM is characterized by inappropriate adduction of the vocal folds during inspiration. PVFM is an uncommon and some- times confusing cause of airway obstruction. The resultant obstruction may be intermittent or continuous, mild or severe. Most patients with PVFM have a specific etiology— inflammatory, neurological, neoplastic, iatrogenic, or psychological—that influences type of treatment and outcome.

Tech specs: Digital download (875 KB). PDF format. 4 pages, 8.5x11 inches.