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Determination of the function of the internal branch of the superior laryngeal nerve after thyroidectomy

✍ Scribed by Jared M. Wasserman; Krishnamurthi Sundaram; Antonio E. Alfonso; Richard M. Rosenfeld; Gady Har-El

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 115 KB
Volume: 30
Category: Article
ISSN: 1043-3074
DOI: 10.1002/hed.20648

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Background.

Several unique complications of thyroidectomy exist because of its regional anatomy; they are well studied and reported. A majority of thyroidectomy patients report vague upper aerodigestive tract complaints. Despite this, no formal assessment of the integrity of the internal branch of the superior laryngeal nerve after thyroidectomy exists in the literature.

Methods.

Thirty three patients undergoing thyroidectomy were prospectively evaluated with preoperative and postoperative laryngopharyngeal sensory testing.

Results.

Preoperatively, 16 patients (49%) reported dysphagia, and 19 (58%) complained of globus sensation. Postoperatively, 24 (73%) patients complained of dysphagia, and 25 (76%) reported globus sensation. Preoperative sensory testing showed a mean sensory threshold of 2.79 ± 0.51 mm Hg. The mean change in thresholds postoperatively was trivial (0.07 ± 0.29 mm Hg), and did not differ significantly from zero (p = .19).

Conclusions.

Although most patients report significant difficulty swallowing after thyroidectomy, the sensory nerve to the laryngopharynx remains intact and is not at risk during thyroid surgery. © 2007 Wiley Periodicals, Inc. Head Neck, 2008

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