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Τετάρτη 27 Φεβρουαρίου 2019

High‐resolution manometry and swallow outcomes after vocal fold injection medialization for unilateral vocal fold paralysis/paresis

Abstract

Background

Injection medialization is performed to improve glottic closure, thereby airway protection. Overall objective to determine if unilateral injection medialization changes glottal area with concomitant adjustments in penetration/aspiration scale (PAS) scores and pharyngeal high‐resolution manometry (HRM) parameters.

Methods

Enrolled 17 adults with unilateral vocal fold paralysis/paresis and aspiration/penetration. Fiberoptic endoscopic evaluation of swallowing and pharyngeal HRM completed at (1) baseline (within 1 week before injection), (2) postinjection (within 1 week post injection), and (3) 1‐month postinjection. Comparisons between time points for PAS scores, glottal area, pharyngeal pressure, and timing.

Results

No significant differences in normalized glottal area. No significant differences in PAS scores, for any consistency. Significantly increased rate of mesopharynx pressure rise and maximum pressure at 1 month postinjection (P = .01 and .02, respectively) compared to baseline. Significant decrease in mesopharynx integral from baseline to 1 week postoperative (P = .03).

Conclusion

Findings suggest unilateral vocal fold injection medialization had limited effect on swallow function.



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