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- 저자 : Tuan-Jen Fang (검색결과 1 건)
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Yi-An Lu,Tuan-Jen Fang,Yu-Cheng Pei,Yun-Chen Tsai,Wan-Ni Lin 대한이비인후과학회 2023 Clinical and Experimental Otorhinolaryngology Vol.16 No.4
Objectives. Laryngeal ultrasonography (LUS) has been suggested as an alternative diagnostic tool for unilateral vocal foldparalysis (UVFP). The present study applied LUS and quantitative laryngeal electromyography (LEMG) in female UVFPpatients to investigate the pathophysiologic mechanisms of UVFP. Methods. In this cross-sectional study, vocal fold (VF) length parameters included resting and phonating VF length measuredusing B-mode LUS, and color Doppler vibrating length (CDVL) measured using the color Doppler mode. Results. Forty female patients with UVFP were enrolled, among whom 11 and 29 were assigned to the thyroarytenoid (TA)muscle+cricothyroid (CT) muscle group (with CT involvement) and the TA (without CT involvement) group, respec-tively. In the TA group, the turn frequency in thyroarytenoid-lateral cricoarytenoid (TA-LCA) on the paralyzed side,as observed through LEMG, correlated with the VF length during the resting phase (R =0.368, P =0.050) and CDVLvalues (R =0.627, P =0.000) on the paralyzed side. In the TA+CT group, the turn ratio in the CT muscle correlatedwith the normalized phonatory vocal length change (nPLC; R =0.621, P =0.041) on the paralyzed side. Conclusion. CDVL and nPLC are two parameters that can be utilized to predict the turn frequencies of TA-LCA in UVFPcases without CT involvement, and the turn ratio of CT in cases of UVFP with CT involvement, respectively. The find-ings suggest that LUS, as a noninvasive tool, can serve as an alternative method for assessing the severity of laryngealnerve injury and offer valuable insights into the pathophysiology of UVFP.
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