Impact of vocal cord ultrasonography on endocrine surgery practices.

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Impact of vocal cord ultrasonography on endocrine surgery practices.

Surgery. 2016 Jan;159(1):58-63

Authors: Carneiro-Pla D, Solorzano CC, Wilhelm SM

Abstract
BACKGROUND: It is common practice to perform flexible laryngoscopy (FL) to ensure true vocal cord (TVC) mobility in patients with previous neck operations or patients with suspected VC dysfunction. Vocal cord ultrasonography (VCUS) is accurate in identifying TVC paralysis. The goal of this study is to evaluate the impact of VCUS as the initial study to confirm TVC mobility in patients requiring preoperative FL.
METHODS: A total of 194 consecutive patients with indications for preoperative FL underwent VCUS. In group 1, 52 patients had FL regardless of the results of VCUS, whereas in group 2, 142 patients had VCUS followed by FL only when VCUS was unsatisfactory.
RESULTS: VCUS visualized TVC/arytenoids in 164 of 194 (85%) patients. TVC visualization was more common in women (95%) and in patients without thyroid cartilage calcification (92%) (P < .0005). VCUS predicted all paralyzed TVC. In group 2, 76% of patients had adequate VCUS and avoided preoperative FL. Among 24% of patients in whom VCUS was inadequate, 16 had preoperative FL attributable to a lack of TVC visualization, 6 had abnormal TVC mobility, 11 needed additional confirmations, and 2 had previous FL for another reason.
CONCLUSION: VCUS changed surgeon practices by avoiding the need for preoperative FL in the majority of patients. This noninvasive and sensitive method demonstrates TVC mobility and safely precludes preoperative FL in most patients.

PMID: 26603853 [PubMed - indexed for MEDLINE]

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