In patients undergoing total thyroidectomy, intraoperative nerve monitoring according to the International Standards Guideline Statement may detect nerves more susceptible to injury. The aim of our study was to evaluate the independent risk factors of vocal cord palsy, including those related to pre-dissection nerve monitoring values. Methods: Prospective observational study in 95 consecutive adult patients undergoing elective total thyroidectomy in Spain. A single experienced phonologist performed a videostroboscopy (VS) exam preoperatively and one week after surgery to assess vocal cord mobility. Each surgical procedure was performed with intermittent intraoperative neuromonitoring. Latency and amplitude values were obtained for the vagal and recurrent laryngeal nerves before surgical dissection and compared with the postoperative VS exam.
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Response amplitude in recurrent laryngeal nerve in uV
Timeframe: Adult patients undergoing total thyroidectomy during a 12-month period
Response amplitude in vagal nerve in uV
Timeframe: Adult patients undergoing total thyroidectomy during a 12-month period
Vocal cord palsy
Timeframe: The VS exam was performed one week after surgery, through study completion, an average of 1 yearThe diagnosis of palsy (absence of motion) was made on the basis of an observation of asymmetrical laryngeal motion.