期刊
ANNALS OF SURGICAL ONCOLOGY
卷 22, 期 6, 页码 1774-1780出版社
SPRINGER
DOI: 10.1245/s10434-014-4162-z
关键词
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Although transcutaneous laryngeal ultrasound (TLUSG) is an excellent, noninvasive way to assess vocal cord (VC) function after thyroidectomy, some patients simply have un-assessable or inaccurate examination. Our study evaluated what patient and surgical factors affected assessability and/or accuracy of postoperative TLUSG. Five hundred eighty-one consecutive patients were analyzed. All TLUSGs were done by one operator using standardized technique, whereas direct laryngoscopies (DL) were done by an independent endoscopist to confirm TLUSG findings. Their findings were correlated. TLUSG was unassessable if a parts per thousand yen1 VC could not be clearly visualized, whereas it was inaccurate if the TLUSG and DL findings were discordant. Demographics, body habitus, neck anthropometry, and position of incision were correlated with assessability and accuracy of TLUSG. Twenty-nine (5.0 %) patients had unassessable VCs; among the assessable patients, 29 (5.3 %) patients had inaccurate TLUSG. More than one-third (38.5 %) of VC palsies (VCPs) were inaccurate. Older age (odds ratio [OR] = 1.055, 95 % confidence interval [CI] 1.016-1.095, p = 0.005), male sex (OR = 13.657, 95 % CI 2.771-67.315, p = 0.001), taller height (OR = 1.098, 95 % CI 1.008-1.195, p = 0.032), and shorter distance from cricoid cartilage to incision (OR = 0.655, 95 % CI 0.461-0.932, p = 0.019) were independent factors for unassessable VCs, whereas older age (OR = 1.028, 95 % CI 1.001-1.056, p = 0.040) was the only factor of incorrect assessment. Older age, male sex, tall in height, and incision closer to the thyroid cartilage were independent contributing factors for unassessable VCs, whereas older age was the only contributing factor for inaccurate postoperative TLUSG. Because more than one-third of VCPs were actually normal, patients labeled as such on TLUSG would benefit from laryngoscopic validation.
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