Clinical outcomes after local anesthesia with monitored anesthesia care during thyroidectomy and selective neck dissection: a randomized study

Abstract

Although thyroidectomy under local anesthesia with monitored anesthesia care (LA-MAC) has been reported, reports of neck dissections beyond level VI under LA-MAC in patients with thyroid cancer are rare. We aimed to analyze clinical data and patient satisfaction levels during thyroidectomy and selective neck dissection by comparing LA-MAC and general anesthesia (GA) in adult patients undergoing these surgeries for thyroid cancer. The 60 enrolled patients comprised 50 patients that underwent thyroidectomy and 10 that underwent selective neck dissection; 30 underwent thyroidectomy (n = 25) or selective neck dissection (n = 5) under LA-MAC and 30 (matched patients) underwent thyroidectomy (n = 25) or selective neck dissection (n = 5) under GA. Complaints of postoperative nausea, vomiting, throat discomfort, and voice changes were significantly fewer in the LA-MAC group than in the GA group. Postoperative pain, odynophagia, dyspnea, and patient satisfaction levels were not significantly different between groups. In the thyroidectomy group, postoperative nausea, vomiting, throat discomfort, and voice changes were less common with LA-MAC, whereas postoperative pain, odynophagia, dyspnea, and patient satisfaction levels were similar for both anesthesia methods. The selective neck dissection group showed no differences between the two anesthesia methods. No postoperative complications were reported in all patients. Our results suggest that LA-MAC can be routinely used for select cases of thyroidectomy and is feasible for selective neck dissection beyond level VI with regard to postoperative discomfort, patient satisfaction levels, and safety. However, further investigations are necessary to clarify these findings.

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