Transoral Endoscopic Thyroidectomy by Vestibular Approach for Differentiated Thyroid Cancer Intraoperatively Invading Strap Muscle

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Xuan Hau Nguyen ◽  
Xuan Hien Nguyen ◽  
Thanh Long Nguyen ◽  
Tuan Dat Pham ◽  
Van Quang Le
Keyword(s):  
Thyroid Cancer ◽  
Differentiated Thyroid Cancer ◽  
Endoscopic Thyroidectomy ◽  
Strap Muscle ◽  
Vestibular Approach

scholarly journals What is the appropriate nodular size of differentiated thyroid cancer management by Transoral Endoscopic Thyroidectomy Vestibular Approach?

2020 ◽  
pp. 2-2
Keyword(s):  
Thyroid Cancer ◽  
Differentiated Thyroid Cancer ◽  
Thyroid Nodules ◽  
Endoscopic Thyroidectomy ◽  
Superficial Fascia ◽  
Mental Nerve ◽  
Cancer Management ◽  
Post Surgery ◽  
Pull Out ◽  
Vestibular Approach

Thyroid nodular disease is a common problem in clinical practice. Incidental thyroid nodules are more frequently diagnosed because of the increased access to radiologic investigations [1]. Though thyroid nodules are common, malignant cases (4.0% to 6.5% of all thyroid nodules) are clinically significant and must be precisely diagnosed. Improvements in surgical techniques have reduced perioperative morbidities. The rates of permanent recurrent laryngeal nerve (RLN) dysfunction and hypoparathyroidism are <1% in experienced hands [2]. Recently, Anuwong reported that transoral endoscopic thyroidectomy vestibular approach (TOETVA) done for 60 selected cases has a low complication rate comparable to that of the conventional open thyroidectomy [3]. In this technique, endoscopic trocars were placed through a central incision in the oral vestibule and bilateral incisions in both sides of the oral commissure. The plane under the superficial fascia is entered away from the lower margin of mandibular bone to avoid damage of the marginal branch of the facial nerve as well as the facial Vessels. However, retrieval of large thyroid specimens through the central incision of the TOETVA necessitated breaking it down into smaller fragments to avoid damage of the mental nerve. This can be problematic for a suspicious or malignant differentiated thyroid cancer (DTC), whose capsule should remain intact for a precise histopathologic examination [4,5]. Imprecise pathologic diagnosis negatively impacts further treatment, follow up and prognosis. However, in this technique of TOETVA, the thyroid specimen was all put and fragmented in the retrieval bag. Supposedly, the cancer should not be spilt out during the procedure of pull out. Thyroglobulin (TG) level 3-4 weeks post-surgery can be used to assess the size of the residual thyroid mass either locally or distally, and guide remnant I-131 ablation therapy [6]. Hence, we presume the prognosis of DTC would be affected by the procedure of fragmentation of TOETVA. In this issue, we would like to establish the critical largest diameter for DTC to be removed safely (with mental nerve preservation) and completely by the TOETVA technique. In our experience, we believe that the ideal nodular size should be <2.5cm to achieve safety and carcinologic goals.

scholarly journals Strap muscle invasion in differentiated thyroid cancer does not impact disease-specific survival: a population-based study

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ja Kyung Yoon ◽  
Jandee Lee ◽  
Eun-Kyung Kim ◽  
Jung Hyun Yoon ◽  
Vivian Youngjean Park ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Differentiated Thyroid Cancer ◽  
Staging System ◽  
Tnm Staging ◽  
Disease Specific Survival ◽  
Strap Muscle ◽  
Muscle Invasion ◽  
The Impact ◽  
Multivariable Adjustment ◽  
Disease Specific

Abstract The American Joint Committee on Cancer (AJCC) 8th TNM staging system of differentiated thyroid cancer defines gross strap muscle invasion as T3b stage. However, the impact of strap muscle invasion on disease-specific survival (DSS) remains controversial. To elucidate the survival impact of strap muscle invasion of any degree in thyroid cancers, the Surveillance, Epidemiology, and End Results (SEER) database (1973–2018) was queried for thyroid cancer only patients on July 2019 (n = 19,914). The Cox proportional hazard analysis with multivariable adjustment revealed that strap muscle invasion was not a significant factor for DSS in tumors equal to or smaller than 40 mm (hazard ratio (HR) = 1.620 [confidence interval (CI) 0.917 – 2.860]; p = 0.097). The competing risk analysis with multivariable adjustment showed that strap muscle invasion did not significantly impact DSS regardless of tumor size or cause of death (cancer-caused death (Subdistribution HR (SDHR) = 1.567 [CI 0.984 – 2.495]; p = 0.059); deaths to other causes (SDHR = 1.155 [CI 0.842 – 1.585]; p = 0.370). A “modified” staging schema discarding strap muscle invasion as a T stage criterion showed better 10-year DSS distinction between T stages. The modified staging schema may better reflect cancer-caused death risk and may prevent potential overstaging.

scholarly journals Endoscopic thyroidectomy versus conventional open thyroidectomy for early differentiated thyroid cancer

2020 ◽  
Vol 10 (4) ◽  
Author(s):  
Hoang Hiep Phan ◽  
Keyword(s):  
Thyroid Cancer ◽  
Recurrent Laryngeal Nerve ◽  
Nerve Injury ◽  
Open Surgery ◽  
Differentiated Thyroid Cancer ◽  
Endoscopic Thyroidectomy ◽  
Recurrent Laryngeal Nerve Injury ◽  
Laryngeal Nerve ◽  
Laryngeal Nerve Injury ◽  
Open Lobectomy

Introduction: Endoscopic thyroidectomy has been applied prudently for malignant thyroid tumors. The aim of our study was to compare the outcomes of endoscopic lobectomy and conventional open lobectomy for early differentiated thyroid cancer. Materials and Methods: From October 2018 to October 2019, 485 patients with early differentiated thyroid cancer underwent thyroid lobectomy in National hospital of Endocrinology enrolled. Of them, 235 patients underwent endoscopic lobectomy (EL) and 250 patients underwent conventional open lobectomy (OL). Results: The mean age of the patients was lower in the EL group (22,3 ± 3,6 years) than in the OL group (31,0 ± 5,8 years, P = 0,013). The ratio female/male was higher in the EL group than in the OL group (12/1 vs 7/1, P = 0,002). The operation time in the EL group was longer than in the OL group (58,4 ± 12,9 vs 42,3 ± 9 minutes, P = 0,014). However, there was no significant differences between EL group and OL group in tumor size (1,2 ± 0,2 vs 1,1 ± 0,6, P = 0,123), blood loss (12,5 ± 0,9 vs 13,6 ± 1,6ml, P = 0,457), postoperative hospital day (4,35 ± 1,4 vs 4,1 ± 1,1 days, P = 0,061), transient hypoparathyroidism (0,85% vs 0,8%, P = 0,431) or transient recurrent laryngeal nerve injury (1,27% vs 1,2%, P = 0,311). The drainage volume in the EL group was higher than in the OL group (75,5 ± 11,4 vs 54,1 ± 10,1ml, P = 0,046). Postoperative bleeding was similar in two groups (0,42% vs 0,4%, P = 0,457). There was no postoperative complications such as permanent recurrent laryngeal nerve injury, tracheal perforation, conversion to open surgery, chyle leak, surgical site infection. Patients in the EL group experienced with less pain than those in the OL group at 1 and 2 days after operation according to a visual analog scale (VAS) (P = 0,047). Wound site numbness is significantly less pronounced in the OL group (p = 0,032). Cosmetically, patients in the EL group were more satisfied than in OL group according to the questionnaire we used (P = 0,021). Conclusions: Endoscopic thyroidectomy for patients with early differentiated thyroid cancer is a safe and effective procedure with excellent cosmetic outcome. Postoperative hospital length stays and complications were similar to conventional open surgery.

scholarly journals Recurrent laryngeal nerve injury in endoscopic surgery for thyroid cancer

2020 ◽  
Vol 10 (3) ◽  
Author(s):  
Hoàng Hiệp Phan ◽  
Keyword(s):  
Thyroid Cancer ◽  
Lymph Node ◽  
Recurrent Laryngeal Nerve ◽  
Neck Dissection ◽  
Lymph Node Dissection ◽  
Differentiated Thyroid Cancer ◽  
Endoscopic Thyroidectomy ◽  
Central Compartment ◽  
Laryngeal Nerve ◽  
Node Dissection

Tóm tắt Đặt vấn đề: Tổn thương dây thần kinh thanh quản quặt ngược (TQQN) là một biến chứng hay gặp trong phẫu thuật ung thư tuyến giáp. Phẫu thuật nội soi mới được ứng dụng và biến chứng này cũng là một lo ngại với các phẫu thuật viên. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang, theo dõi dọc. Người bệnh được chẩn đoán là ung thư tuyến giáp thể biệt hóa giai đoạn sớm, được điều trị phẫu thuật bằng mổ nội soi tại Bệnh viện Nội tiết trung ương từ tháng 01 năm 2013 đến tháng 9 năm 2016. Kết quả: 95 người bệnh (NB) được chẩn đoán là ung thư tuyến giáp thể biệt hóa giai đoạn sớm được phẫu thuật nội soi theo chỉ định. Tổn thương dây thần kinh TQQN không gặp khi cắt 1 thùy tuyến giáp. Tổn thương dây thần kinh TQQN tạm thời khi cắt toàn bộ tuyến giáp tổn thương là 4,8%, cắt toàn bộ tuyến giáp và nạo vét hạch 1 khoang, 2 khoang và 3 khoang lần lượt là 3,6%, 5,6% và 1/5, tính chung là 5,3%. Tổn thương dây thần kinh TQQN vĩnh viễn (sau mổ 6 tháng) có 1 người bệnh (1,1%), trường hợp này thường là có nhân nằm tại vị trí dây chằng Berry đi vào của dây thần kinh TQQN. Tổn thương dây thần kinh của nhóm nạo vét hạch khoang trung tâm (5,6%) cao hơn so với nạo vét hạch khoang bên (3,6%) sự khác biệt có ý nghĩa thống kê (p=0,015). Liệt dây thần kinh TQQN trong nhóm nạo vét hạch cổ tăng hơn gấp 1,27 lần ở nhóm không nạo vét hạch (p = 0,025). Kết luận: Tỉ lệ tổn thương dây thần kinh TQQN phụ thuộc vào phương pháp phẫu thuật tuyến giáp và có nạo vét hạch cổ hay không. Tỉ lệ này sẽ tăng khi nạo vét hạch, đặc biệt là nạo vét hạch khoang trung tâm. Abstract Background: Recurrent laryngeal nerve (RLN) injury is a common complication in thyroidectomy. Endoscopic thyroidectomy has just been applied for thyroid cancer and RLN injury is also a concern of the surgeons. Materials and Methods: It’s a cross-sectional with longitudinal study. Patients with early differentiated thyroid cancer were enrolled into this study underwent endoscopic thyroidectomy in National hospital of Endocrinology from January 2013 to September 2016. Results: 95 patients with early differentiated thyroid cancer underwent endoscopic thyroidectomy were included. No RLN injury occurred for one lobectomy. Transient RLN injury was 5,3% in total of which was 4,8% after total thyroidectomy (TT), TT with compartment neck dissection were 3,6%; 5,6% and 1/5, respectively. One patient with permanent RLN injury (1,1%) due to the node is located into Berry ligament of RLN. There was a significantly increased risk of RLN injury after TT with central compartment neck dissection compared to TT with lateral compartment neck dissection (5,6% vs 3,6%, p=0,015). RLN injury was significantly higher for TT with lymph node dissection is 1,27 than the group without lymph node dissection (p=0.025). Conclusions: RLN injury rate was significantly influenced by types of thyroidectomy and with/without lymph node dissection. The rate was increased after TT with lymph node dissection, especially central compartment neck dissection. Keywords: Early differentiated thyroid cancer, Endoscopic thyroidectomy.

scholarly journals Novel Trocars and Suspension System Application in Gasless Transoral Endoscopic Thyroidectomy Vestibular Approach Oral Endoscopic Surgery

2021 ◽  
Vol 11 ◽  
Author(s):  
Jing Fang ◽  
Jianjun Liu ◽  
Xucai Zheng ◽  
Shengying Wang
Keyword(s):  
Thyroid Cancer ◽  
Lymph Node ◽  
Cancer Patients ◽  
Endoscopic Thyroidectomy ◽  
Postoperative Bleeding ◽  
Suspension System ◽  
Central Lymph Node ◽  
Central Lymph Node Dissection ◽  
Central Lymph ◽  
Vestibular Approach

In the current study, we reported our initial experience of gasless transoral endoscopic thyroidectomy vestibular approach (TOETVA) by novel trocars and a suspension system. Between February 2019 to September 2020, thyroid cancer patients with indicated central lymph node metastasis by imaging examination who had received gasless TOETVA by our designed trocars and suspension system in The First Affiliated Hospital of University of Science and Technology of China were reviewed. A total of 95 thyroid cancer patients that received gasless TOETVA were included in this analysis. Of note, 73 cases underwent one-sided lobectomy and the remaining 22 cases underwent total thyroidectomy. All thyroid cancer patients underwent central lymph node dissection (CND). The average total examined lymph nodes number was 8.55 ± 5.67 per individual. No serious complications occurred during or after the operation besides one patient who had a short-term recurrent laryngeal nerve (RLN) deficit and one patient who had delayed postoperative bleeding. In conclusion, the use of novel trocars and a suspension system can effectively improve the safety and efficacy of TOETVA.

scholarly journals Endoscopic Thyroidectomy for Differentiated Thyroid Cancer

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Yi Yang ◽  
Xiaodong Gu ◽  
Xiaoxiao Wang ◽  
Jianbin Xiang ◽  
Zongyou Chen
Keyword(s):  
Thyroid Cancer ◽  
Learning Curve ◽  
Surgical Procedure ◽  
Differentiated Thyroid Cancer ◽  
Endoscopic Thyroidectomy ◽  
Operation Time ◽  
Cosmetic Result ◽  
Surgical Approaches ◽  
New Approach ◽  
Conventional Thyroidectomy

Endoscopic thyroidectomy is a relatively new approach in treating differentiated thyroid cancer. Since last decades, more and more endoscopic thyroidectomies have been performed. We review the indications and contraindications, methods, and postoperational complications of this surgical procedure. Lots of surgical approaches have been developed in endoscopic thyroidectomy for differentiated thyroid cancer. Compared to conventional thyroidectomy, scarless endoscopic thyroidectomy has a superior cosmetic result. And it also reduces the incidence of hypesthesia, paresthesia, or feelings of self-consciousness. However, the outcome depends, to a large extent, on the skill of the operator and the learning curve being relatively long. With the development of surgical equipments and skills, operation time and complications will be reduced. Indications of endoscopic thyroidectomy will be widened and it will be more and more performed.

scholarly journals Impact of Gross Strap Muscle Invasion on Outcome of Differentiated Thyroid Cancer: Systematic Review and Meta-Analysis

2020 ◽  
Author(s):  
Li Zhang ◽  
Jia Liu ◽  
Peisong Wang ◽  
Shuai Xue ◽  
Jie Li ◽  
...  
Keyword(s):  
Systematic Review ◽  
Thyroid Cancer ◽  
Differentiated Thyroid Cancer ◽  
Meta Analysis ◽  
Cochrane Library ◽  
American Thyroid Association ◽  
Strap Muscle ◽  
Risk Of Recurrence ◽  
Muscle Invasion ◽  
The Impact

Gross strap muscle invasion (gSMI) in patients with differentiated thyroid cancer (DTC) was defined as high-risk recurrent group in the 2015 American Thyroid Association guidelines. However, controversy persists because several studies suggested gSMI had little effect on disease outcome. Herein, a systematic review and meta-analysis was conducted to investigate impact of gSMI on outcome of DTC. Methods: A systematic search of electronic databases (PubMed, EMBASE, Cochrane Library, and MEDLINE) for studies published until February 2020 was performed. Case-control studies and randomized controlled trials that studied the impact of gSMI on outcome of DTC were included. Results: Six studies (all retrospective studies) involving 13639 patients met final inclusion criteria. Compared with no extrathyroidal extension (ETE), patients with gSMI were associated with increased risk of recurrence (P=0.0004,OR, 1.46; 95% CI: 1.18 to 1.80) and lymph node metastasis (LNM) (P&lt;0.00001,OR 4.19;95% CI. 2.53 to 6.96). For mortality (P=0.34,OR 1.47;95% CI:0.67 to 3.25), ten-year disease-specific survival (P=0.80, OR 0.91;95% CI:0.44 to 1.88) and distant metastasis (DM) (P=0.21, OR 2.94;95% CI. 0.54 to 15.93), there was no significant difference between gSMI and no ETE group. In contrast with maximal ETE, patients with gSMI were associated with decreased risk of recurrence (P&lt;0.0001,OR, 0.58; 95% CI: 0.44 to 0.76) , mortality (P=0.0003,OR 0.20;95% CI:0.08 to 0.48), LNM (P=0.0003,OR 0.64;95% CI. 0.50 to 0.81) and DM (P=0.0009,OR 0.28;95% CI. 0.13 to 0.59). Conclusions: DTC patients with gSMI had a higher risk of recurrence and LNM than those without ETE. However, in contrast with maximal ETE, a much better prognosis was observed in DTC patients with only gSMI. The findings of our meta-analysis provide supportive evidence for the validity of the T category changes in the 8th edition American Joint Committee on Cancer system. The actual impact of gSMI should be re-evaluated and revised in the recurrent risk stratification system in the future.

Extrathyroidal Extension: Does Strap Muscle Invasion Alone Influence Recurrence and Survival in Patients with Differentiated Thyroid Cancer?

2018 ◽  
Vol 25 (11) ◽  
pp. 3380-3388 ◽  
Author(s):  
Moran Amit ◽  
Mongkol Boonsripitayanon ◽  
Ryan P. Goepfert ◽  
Samantha Tam ◽  
Naifa L. Busaidy ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Differentiated Thyroid Cancer ◽  
Extrathyroidal Extension ◽  
Strap Muscle ◽  
Muscle Invasion
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