Abstract
An analysis of some special factors was performed to further evaluate and discuss whether endoscopic surgery and traditional open surgery have similar therapeutic outcomes for differentiated thyroid cancer (DTC). A retrospective study was performed on 76 patients undergoing surgery to treat DTC. Forty patients were treated by endoscopic thyroidectomy via the chest-breast approach (endoscopic group) and thirty-six patients were treated by open surgery (open group). Serum thyroglobulin (sTg), radioactive iodine uptake (RAIU), radioactive technetium uptake (RATU), radionuclide imaging of the thyroid residual area (RITRA), radionuclide imaging of suspicious lymph nodes metastasis (RISLNM), and other general indexes were analyzed and compared between the two groups. All surgeries were successfully completed in both groups. There were no significant differences between the two groups regarding gender (P = 0.120), postoperative hospital stay (P = 0.766), operation time (P = 0.065), intra-operative blood loss (P = 0.064), tumor diameter (P = 0.059), and overall complications (P = 0.828). Among these complications, there was no significant difference between the two approaches in transient hypoparathryoidism (P = 0.771), transient recurrent laryngeal injury (P = 0.474) and serious neck skin traction sensation (2.5 vs. 0%, P = 1.000). Age and body mass index were lower in the endoscopic group than the open group (P < 0.05). No significant difference was found in special factors between two groups concerning surgical range (P = 0.872), RAIU-2h/24h (P = 0.660/P = 0.955), RATU (P = 0.116), number of dissected lymph nodes (P = 0.157), sTg before radioiodine therapy (P = 0.188), sTg after radioiodine therapy (P = 0.159), RITRA at different time points (99mTc 15min: P = 0.144; 131I 24h: P = 0.243; 131I 72h: P = 0.624) and RISLNM (none: P = 0.805; central: P = 0.744; lateral: P = 1.000; central + lateral: P = 0.958). Endoscopic total thyroidectomy and central lymph nodes dissection via a chest-breast approach are safe and effective. Through the detection of the postoperative special factors, a well-trained surgeon can achieve similar therapeutic results for selected patients with DTC, compared with open surgery.
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