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Determination of the function of the internal branch of the superior laryngeal nerve after thyroidectomy
Author(s) -
Wasserman Jared M.,
Sundaram Krishnamurthi,
Alfonso Antonio E.,
Rosenfeld Richard M.,
HarEl Gady
Publication year - 2008
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.20648
Subject(s) - medicine , thyroidectomy , superior laryngeal nerve , dysphagia , surgery , swallowing , recurrent laryngeal nerve , sensation , thyroid , larynx , anesthesia , neuroscience , biology
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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