A novel lateral-approach laryngeal ultrasonography for vocal cord evaluation
- Authors
- Woo, Jung-Woo; Suh, Hyunsuk; Song, Ra-Yeong; Lee, Joon-Hyop; Yu, Hyeong Won; Kim, Su-jin; Chai, Young Jun; Choi, June Young; Lee, Kyu Eun
- Issue Date
- Jan-2016
- Publisher
- MOSBY-ELSEVIER
- Citation
- SURGERY, v.159, no.1, pp 52 - 56
- Pages
- 5
- Journal Title
- SURGERY
- Volume
- 159
- Number
- 1
- Start Page
- 52
- End Page
- 56
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/71667
- DOI
- 10.1016/j.surg.2015.07.043
- ISSN
- 0039-6060
- Abstract
- Background. Laryngeal ultrasonography (LUS) is a new method of vocal cord (VC) evaluation in patients with risk of vocal cord palsy (VCP). The previously described anterior-approach LUS reportedly, however, has high failure rate of VC visualization in male patients. We devised a novel lateral-approach LUS to overcome this limitation. Methods. A total of 382 (82 male, 300 female) consecutive LUS and direct laryngoscopy (DL) examinations were performed on perioperative thyroidectomy and parathyroidectomy patients. The anterior-approach LUS was used for female patients whereas the lateral-approach LUS was used for male patients. Findings were cross-validated independently with DL examinations. Results. Both anterior and lateral LUS methods had 100% visualization rate (no failed visualization) with an overall sensitivity of 100% (23/23) and specificity of 99.2% (356/359) for VCP. Among the 300 female patients, 18 patients had VCP. Sensitivity and specificity of anterior-approach LUS were 100% (18/18) and 99.3% (280/282), respectively. Among the 80 male patients, 5 patients had VCR Sensitivity and specificity of lateral-approach LU were 100% (5/5) and 98.7% (76/77), respectively. Conclusion. The new LUS approach significantly enhances the visualization of vocal cords and, therefore, overall diagnostic efficacy of LUS in male patients.
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