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MINERVA ANESTESIOLOGICA

A Journal on Anesthesiology, Resuscitation, Analgesia and Intensive Care


Official Journal of the Italian Society of Anesthesiology, Analgesia, Resuscitation and Intensive Care
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Minerva Anestesiologica 2017 December;83(12):1239-47

DOI: 10.23736/S0375-9393.17.11755-4

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Accuracy of transcutaneous laryngeal ultrasound for detecting vocal cord paralysis in the immediate postoperative period after total thyroidectomy

Marcos de MIGUEL 1 , Eva M. PELÁEZ 1, Enric CAUBET 2, Óscar GONZÁLEZ 2, Mercedes VELASCO 3, Lidia RIGUAL 3

1 Department of Anesthesiology and Perioperative Care, Vall d’Hebron University Hospital, Autonomus University of Barcelona, Barcelona, Spain; 2 Department of Surgery, Vall d’Hebron University Hospital, Autonomus University of Barcelona, Barcelona, Spain; 3 Department of Phoniatrics and Voice Rehabilitation, Vall d’Hebron University Hospital, Autonomus University of Barcelona, Barcelona, Spain


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BACKGROUND: Transcutaneous laryngeal ultrasound (TLUS) has emerged as a promising imaging tool for vocal cord examination in patients undergoing thyroid surgery. The focus of this prospective, double-blind study was to assess the accuracy of TLUS in the diagnosis of vocal cord paralysis in the immediate postoperative period following total thyroidectomy.
METHODS: The study included 93 patients undergoing total thyroidectomy and assessed by videostrobolaryngoscopy (VSL) and TLUS. VSL was carried out the day before surgery and was repeated at 4 days postoperatively. TLUS was performed before surgery in the preanesthesia holding area and at completion of the procedure in the postanesthesia care unit. The preoperative and postoperative TLUS results were correlated with those of VSL. The statistical analysis included the sensitivity, specificity, positive predictive value, and negative predictive value (with 95% CI) of TLUS for detecting vocal cord paralysis.
RESULTS: The visualization rate associated with TLUS was 93%. The total vocal cord paralysis rate was 16.1%. The performance of TLUS for diagnosing this condition was as follows: sensitivity, 93.3% (95% CI: 77.3-100%); specificity 96.1% (95% CI: 91.2-100%); positive predictive value, 82.3% (95% CI: 61.2-100%); negative predictive value, 98.6% (95% CI, 95.4-100%).
CONCLUSIONS: TLUS may be a suitable technique for detecting vocal cord paralysis shortly after total thyroidectomy.


KEY WORDS: Ultrasonography - Vocal cord paralysis - Postoperative period, Laryngoscopy

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Publication History

Issue published online: December 20, 2017
Article first published online: June 14, 2017
Manuscript accepted: May 9, 2017
Manuscript revised: May 3, 2017
Manuscript received: October 15, 2016

Cite this article as

de Miguel M, Peláez EM, Caubet E, González Ó, Velasco M, Rigual L. Accuracy of transcutaneous laryngeal ultrasound for detecting vocal cord paralysis in the immediate postoperative period after total thyroidectomy. Minerva Anestesiol 2017;83:1239-47. DOI: 10.23736/S0375-9393.17.11755-4

Corresponding author e-mail

mdemiguelnegro@gmail.com