In this study, investigators measure patient's voice frequency, swallowing function, and O2 desaturation of the 6 mins walking test before surgery and 4 months after surgery, to find the increase of voice frequency, and swallowing function and the decrease of O2 desaturation.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Successful surgery is defined as iPTH levels less than 72 pg/dL within one week after surgery
Timeframe: one week after surgery
Voice impairment(GRBAS)
Timeframe: 4 months after surgery
Voice impairment(VH1-10)
Timeframe: 4 months after surgery
Voice impairment(EAT-10)
Timeframe: 4 months after surgery
Acoustic voice analysis
Timeframe: 4 months after surgery
Vocal cord examination
Timeframe: 4 months later
Fiber optic endoscopic evaluation of swallowing (FEES)
Timeframe: 4 months later.
Pulmonary function test
Timeframe: 4 months later
6MWT were performed.
Timeframe: 4 months later