Background Robotic thyroidectomy using a gasless transaxillary approach, first described in 2008, has become popular. This study compared outcomes, including postoperative distress and patient satisfaction, for patients undergoing robotic thyroidectomy with those for patients treated by conventional open thyroidectomy. Methods Of 84 prospectively enrolled patients, 41 underwent robotic thyroidectomy (the robot group), and 43 received conventional open thyroidectomy (the open group). All the patients were followed up for at least 3 months after surgery. Videolaryngostroboscopic examinations were performed preoperatively and after 1 week and after 3 months postoperatively. Postoperative pain and discomfort were evaluated using a symptom scale. Subjective voice and swallowing changes were assessed by questionnaires; and satisfaction with cosmetic outcome was measured by verbal response at 3 months. Results The two groups were similar in age, gender, type of operation, and final pathologic diagnosis. Although the mean operating time was significantly longer with the robotic technique than with open surgery, there were no betweengroup differences in postoperative pain or duration of hospital stay. No patient in either group experienced any major postoperative complication. Postoperative discomfort in the neck and swallowing disturbances were significantly more frequent in the open group than in the robot group, both at 1 week and at 3 months after surgery. However, there was no significant between-group difference in subjective voice parameters. At 3 months, the mean cosmetic satisfaction score was significantly higher in the robotic than in the open group. Conclusion Although postoperative pain levels and complications were comparable in the two groups, conventional open thyroidectomy requires a shorter operative time. The robotic technique, however, offers several distinct advantages including very good to excellent cosmetic results, reduced postoperative neck discomfort, and fewer adverse swallowing symptoms.Keywords Comparative study Á Cosmetic result Á Postoperative neck discomfort Á Robotic thyroidectomy Á Swallowing symptom Most patients with thyroid tumors are effectively treated surgically by practitioners experienced in the techniques of thyroidectomy. Many patients, especially women, undergoing thyroid surgery are concerned about the postoperative cosmetic appearance of the neck. Neck surgery also may result in postoperative discomfort, with pain, hyperesthesia, and paresthesia [1][2][3].
Cellular senescence has been perceived as a barrier against carcinogenesis. However, the senescence-associated secretory phenotype (SASP) of senescent cells can promote tumorigenesis. Here, we show senescent tumour cells are frequently present in the front region of collective invasion of papillary thyroid carcinoma (PTC), as well as lymphatic channels and metastatic foci of lymph nodes. In in vitro invasion analysis, senescent tumour cells exhibit high invasion ability as compared with non-senescent tumour cells through SASP expression. Collective invasion in PTC is led by senescent tumour cells characterized by generation of a C-X-C-motif ligand (CXCL)12 chemokine gradient in the front region. Furthermore, senescent cells increase the survival of cancer cells via CXCL12/CXCR4 signalling. An orthotopic xenograft in vivo model also shows higher lymphatic vessels involvement in the group co-transplanted with senescent cells and cancer cells. These findings suggest that senescent cells are actively involved in the collective invasion and metastasis of PTC.
Purpose. The learning curve for robotic thyroidectomy with central compartment node dissection (CCND) has not been established. We examined the effect of experience of robotic thyroidectomy on a range of perioperative parameters in order to determine the learning curve. The learner surgeon outcomes were compared with those of an experienced surgeon. Methods. We conducted a prospective, controlled, multicenter study involving four endocrine surgeons at three academic centers. Patients underwent robotic total or subtotal thyroidectomy with CCND between September 2008 and October 2009. One surgeon was experienced in the technique (experienced surgeon, ES), while the other three surgeons had endoscopic thyroid surgery experience but no experience performing the robotic procedure (nonrobotic thyroid surgery experienced surgeon, NS). Outcome measures were demographic data, operative time, blood loss, hospital stay, pathologic results, and postoperative complications. Results. A total of 644 total or subtotal robotic thyroidectomies with CCND were performed: 377 (58.7%) by NSs and 267 (41.5%) by the ES. Mean operative time was longer and the complication rate was higher for the NS patient group compared with the ES patient group (P \ 0.001 for each). The operative times and complications rates for the NS group were similar to those of the ES group once the NSs had performed 50 cases for total thyroidectomies or 40 cases for subtotal thyroidectomies. Conclusion. The learning curve duration for robotic thyroidectomy with CCND using gasless transaxillary approach for experienced endoscopic thyroidectomy surgeons was 50 cases for total thyroidectomy and 40 cases for subtotal thyroidectomy.Endoscopic thyroid and parathyroid surgery have emerged as viable options for surgical management of thyroid tumors since the first descriptions of endoscopic parathyroidectomy by Gagner in 1996 and video-assisted thyroid lobectomy by Huscher in 1997.
Our study showed that DTC patients presenting with initial DM appear to have relatively favorable outcomes compared with DTC patients who developed DM after initial treatment. Complete local control may be the most important prognostic indicator in all DM patients. Metastatic lesion iodine avidity had a significant impact on both OS and DSS in patients developing DM after initial treatment, but significantly influenced only DSS in patients presenting with initial DM.
Background. Endoscopic thyroidectomy is a technically challenging procedure. Robot-assisted thyroidectomy has been recently introduced and offers improved visualization and dexterity. The present study compared conventional endoscopic and robotic thyroidectomy for thyroid cancer patients in terms of perioperative outcomes and learning curve. All operations were performed by the same surgeon. Materials and Methods. Between April 2007 and March 2010, 96 patients underwent endoscopic thyroidectomy (endoscopy group) and 163 patients underwent robotic thyroidectomy (robot group). A gasless transaxillary approach was used in both groups. The 2 groups were compared in terms of patient characteristics, perioperative clinical results, complications, and pathologic details. Learning curves for the 2 procedures were compared based on the number of cases required to reach a consistent operation time. Results. Patient characteristics were similar for both groups. The mean total operation time for thyroidectomy with central compartment neck dissection was 142.7 ± 52.1 min in the endoscopy group and 110.1 ± 50.7 min in the robot group (P = .041). Both patient groups were similar in terms of pathological features including TNM stage, intraoperative blood loss, length of hospital stay, and complication rate. However, the mean number of retrieved central lymph nodes was 2.4 ± 1.9 for the endoscopy group and 4.5 ± 1.5 for the robot group (P = .004). The learning curve was 55-60 cases for endoscopic thyroidectomy and 35-40 cases for robotic thyroidectomy. Conclusion. Robotic thyroidectomy was found to be superior to endoscopic thyroidectomy in terms of operation time, lymph node retrieval, and learning curve. Complication rates and postoperative hospital stay were similar for the 2 procedures.Endoscopic approaches for thyroid cancer surgery can reduce scarring and postoperative neck discomfort without compromising oncologic effectiveness.
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