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장대익,권순복,김영준,이형신,이강대 한국언어치료학회 2024 言語治療硏究 Vol.33 No.2
Purpose: After thyroidectomy, 29.7% of patients with normal vocal movement reported subjective voice changes, negative fatigue was the most common when complaining of subjective voice discomfort, followed by symptoms of an inability or produce high notes well and a difficulty making loud sounds. Therefore, this study aims to improve voice fatigue by examining the characteristics of voice fatigue after thyroidectomy and identifying differences in voice fatigue according to various factors after resection. Methods: Among the patients diagnosed with thyroid cancer and undergoing thyroidectomy, 170 patients without postoperative neurological damage were subjected to acoustic analysis (jitter, shimmer, NHR), and the Voice Fired Index was performed to identify and compare fatigue characteristics before and after surgery. The correlation of each test result was examined through statistics, and the fatigue level according to gender, age, and range of resection were compared and analyzed to measure the difference in negative fatigue after resection. Results: First, there was a significant difference in VFI scores according to the period before and after resection. Second, there was a positive correlation between the VFI score and jitter, but there was no significant correlation with shimmer and NHR variables. In addition, the TVQ score and the VFI score showed a high positive correlation. Third, sex, ablation extent, and age factors showed no significant difference in postablation VFI scores. Conclusions: VFI seems to be useful in evaluating negative fatigue after thyroidectomy. Since negative fatigue negatively affects the lives of patients, early evaluation and intervention are required.