VS01.04: RELIABLE SURGICAL TECHNIQUES FOR LYMPHADENECTOMY ALONG THE LEFT RECURRENT LARYNGEAL NERVE DURING THORACOSCOPIC ESOPHAGECTOMY IN THE PRONE POSITION

2018 ◽  
Vol 31 (Supplement_1) ◽  
pp. 44-44
Author(s):  
Taro Oshikiri ◽  
Tetsu Nakamura ◽  
Hiroshi Hasegawa ◽  
Masashi Yamamoto ◽  
Shingo Kanaji ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Lymph Node ◽  
Lymph Nodes ◽  
Recurrent Laryngeal Nerve ◽  
Prone Position ◽  
Conflicts Of Interest ◽  
Surgical Techniques ◽  
Laryngeal Nerve ◽  
Thoracoscopic Esophagectomy ◽  
Left Recurrent Laryngeal Nerve

Abstract Description Background Lymphadenectomy along the left recurrent laryngeal nerve (RLN) in esophageal cancer is important for disease control but requires advanced dissection skills. Complete dissection of the lymph nodes along the left RLN in a safe manner is important. We demonstrate the reliable method for lymphadenectomy along the left RLN during thoracoscopic esophagectomy in the prone position (TEP). Methods This procedure is performed for all of resectable thoracic esophageal cancers. The essence of this method is to recognize the lateral pedicle as a two-dimensional membrane that inclu replicatedes the left RLN, lymph nodes around the nerve, and primary esophageal arteries. By drawing the proximal portion of the divided esophagus and the lateral pedicle, identification and reliable cutting of the primary esophageal arteries and distinguishing the left RLN from the lymph nodes are simplified. Results We performed 46 TEPs for esophageal cancer using this method with no conversion to an open procedure in 2015 at Kobe University. No intraoperative morbidity related to the left RLN was observed. The mean number of harvested lymph nodes along the left RLN was 6.9 ± 4.2. Left RLN palsy greater than Clavien-Dindo classification grade II occurred in 4 patients (8%), all of them were reversible. The incidence of lymph node metastasis along the left RLN was 22%. Conclusion Our method for lymphadenectomy along the left RLN during TEP is safe and reliable. It has a low incidence of left RLN palsy and provides sufficient lymph node dissection along the left RLN. Disclosure All authors have declared no conflicts of interest.

P179 THORACOSCOPIC EXTENDED 2-FIELD LYMPH NODE DISSECTION FOR ESOPHAGEAL CANCER. IMPLEMENTATION AND SURGICAL TECHNIQUE

2019 ◽  
Vol 32 (Supplement_2) ◽  
Author(s):  
Eleandros Kyros ◽  
Konstantinos Zografos ◽  
Ilias Vagios ◽  
Natasha Hasemaki ◽  
Lysandros Karydakis ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Lymph Node ◽  
Surgical Technique ◽  
Lymph Nodes ◽  
Recurrent Laryngeal Nerve ◽  
Prone Position ◽  
Lymph Node Dissection ◽  
Laryngeal Nerve ◽  
Node Dissection ◽  
The Right

Abstract Aim Lymphadenectomy in minimally-invasive esophageal cancer surgery still remains challenging and standardization of surgical procedures is of extreme importance. The aim of this study is to present our safe and reproducible technique in thoracoscopic superior lymphadenectomy during esophagectomy for cancer. Background & Methods In esophageal cancer surgery, dissection of the superior mediastinal lymph-nodes is of high importance. For adequate mediastinal lymph-node dissection, an extensive operating field is required along with appropriate equipment and experience. Thoracoscopy in prone position provides excellent visualization of the operative field comparing to thoracotomic phase. A step-by-step explanation of our surgical technique during thoracoscopic superior lymphadenectomy is provided. Results All patients were placed in prone position. The entire posterior mediastinal pleura was incised; azygos arch was divided with clips, facilitating dissection of the left side of the posterior mediastinum. The descending thoracic aorta was freed anteriorly, separating the esophagus; the thoracic duct was dissected and divided with vascular clips. Esophageal hiatus was dissected circumferentially and the esophageal wall was freed from the pericardiumanteriorly. Subcarinal lymph-nodes were dissected en bloc. Upper thoracic esophagus was separated from the membranous part of the trachea. The right recurrent laryngeal nerve lymph nodes were dissected at the level of the right subclavian artery, with extreme caution to avoid nerveinjury. Left recurrent laryngeal nerve was identified by posterior traction of the esophagus using a full thickness transluminal suture;by pulling it through a separate skin incision, the relative lymph nodes were dissected. Conclusion It is interesting that, higher number of lymph-nodes are harvested with this procedure which may be the result of better visualization/access. Overall, our technique has been standardized, is safe and reproducible and could be adopted by specialized Upper GI Units.

P223 BILATERAL RECURRENT LARYNGEAL NERVE LYMPHADENECTOMY DURING THORACOSCOPIC ESOPHAGECTOMY IN PRONE POSITION

2019 ◽  
Vol 32 (Supplement_2) ◽  
Author(s):  
R Jiménez-Rosellón ◽  
F Mingol ◽  
A Navío ◽  
M Bruna ◽  
E Álvarez ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Lymph Node ◽  
Minimally Invasive ◽  
Lymph Nodes ◽  
Recurrent Laryngeal Nerve ◽  
Prone Position ◽  
Lymph Node Dissection ◽  
Mediastinal Lymph Node ◽  
Laryngeal Nerve ◽  
Node Dissection

Abstract Aim To present a video of a complete bilateral recurrent laryngeal nerve lymphadenectomy performed during minimally invasive esophagectomy using thoracoscopic video-assisted surgery in the prone position. Background and Methods Surgical treatment for esophageal cancer needs detailed lymphadenectomy. Indeed, the number of surgically dissected lymph nodes is important for staging accuracy and also determines patient’s prognosis, including those along the recurrent laryngeal nerve. However, recurrent laryngeal nerve dissection remains difficult and increases the appearance of postoperative complications. This is a video of a bilateral recurrent laryngeal nerve lymphadenectomy during thoracoscopic esophagectomy performed in the prone position in a female patient with esophageal cancer. Results A 75 year-old female was diagnosed with recurrent squamous cell middle third esophageal carcinoma. The patient had first been diagnosed eleven years ago, receiving chemoradiotherapy as a radical treatment. The patient achieved a complete response after treatment, which remained for eleven years. Eleven years later, during routine follow-up, tumor recurrence was identified in the middle third of the esophagus. After presentation in a Multidisciplinary Group the patient underwent minimally invasive McKeown esophagectomy. First, a video-assisted thoracoscopic surgery was performed in the prone position to mobilize the thoracic esophagus and complete a detailed mediastinal lymph node dissection, including infra-carinal lymph nodes, bilateral bronchial lymph nodes and also bilateral recurrent laryngeal nerve lymph nodes. Afterwards, the abdominal esophagus and lymph node dissection is performed using a laparoscopic approach, and also a left cervicotomy in the supine position. An assistance laparotomy was made to externalize the specimen and make the gastric conduit. A manual end-to end esophago-gastric anastomosis was executed and finally, a feeding jejunostomy tube was placed. The patient presented a benign postoperative course, introducing enteral nutrition and oral intake developing no complications, such as dysphonia, nor dysphagia and was discharged on the 8th postoperative day. The postoperative barium swallow radiography showed no leaks nor other complications and pathology report confirmed tumor free resection margins. Conclusion Detailed mediastinal lymph node dissection and exhaustive bilateral recurrent laryngeal nerve lymphadenectomy can be safely performed by minimally invasive surgery, as is shown in the video. The technique shown is feasible, achieves a complete lymph-node dissection and avoids postoperative complications such as dysphonia and recurrent laryngeal nerve palsy.

scholarly journals Reliable Surgical Techniques for Lymphadenectomy Along the Left Recurrent Laryngeal Nerve During Thoracoscopic Esophagectomy in the Prone Position

2017 ◽  
Vol 24 (4) ◽  
pp. 1018-1018 ◽  
Author(s):  
Taro Oshikiri ◽  
Tetsu Nakamura ◽  
Hiroshi Hasegawa ◽  
Masashi Yamamoto ◽  
Shingo Kanaji ◽  
...  
Keyword(s):  
Recurrent Laryngeal Nerve ◽  
Prone Position ◽  
Surgical Techniques ◽  
Laryngeal Nerve ◽  
Thoracoscopic Esophagectomy ◽  
Left Recurrent Laryngeal Nerve

scholarly journals Practical Surgical Techniques for Lymphadenectomy Along the Right Recurrent Laryngeal Nerve During Thoracoscopic Esophagectomy in the Prone Position

2017 ◽  
Vol 24 (8) ◽  
pp. 2302-2302 ◽  
Author(s):  
Taro Oshikiri ◽  
Tetsu Nakamura ◽  
Yukiko Miura ◽  
Hiroshi Hasegawa ◽  
Masashi Yamamoto ◽  
...  
Keyword(s):  
Recurrent Laryngeal Nerve ◽  
Prone Position ◽  
Surgical Techniques ◽  
Laryngeal Nerve ◽  
Thoracoscopic Esophagectomy ◽  
The Right

P152 CLINICAL PREDICTIVE MODEL OF LYMPH NODE METASTASIS AT RIGHT RECURRENT LARYNGEAL NERVE ZONE IN ESOPHAGEAL SQUAMOUS CELL CARCINOMA

2019 ◽  
Vol 32 (Supplement_2) ◽  
Author(s):  
Li Zhigang ◽  
Li Baiwei ◽  
Li Bin ◽  
Yang Yang
Keyword(s):  
Squamous Cell Carcinoma ◽  
Esophageal Cancer ◽  
Lymph Node ◽  
Lymph Node Metastasis ◽  
Esophageal Squamous Cell Carcinoma ◽  
Lymph Nodes ◽  
Recurrent Laryngeal Nerve ◽  
Laryngeal Nerve ◽  
Node Metastasis ◽  
Short Diameter

Abstract Aim The aim of this study is to establish a clinical predictive standard for lymph node metastasis at this location by retrospectively comparing the traditional imaging findings of RRLN lymph nodes in esophageal squamous cell carcinoma with postoperative pathology. Background The right recurrent laryngeal nerve (RRLN) is the zone most prone to lymph node metastasis of esophageal squamous cell carcinoma. Although the survival benefit is large after surgical dissection, however, the postoperative mortality rate is significantly increased if the nerve is injured. How to selectively perform lymph node dissection at this location has always been a clinical problem that needs to be addressed. In the past, clinical evaluations mostly used lymph node short diameter ≥1cm as the diagnostic criteria for metastasis, which significantly underestimated the actual clinical situation. Methods 308 patients with thoracic esophageal squamous cell carcinoma who underwent surgical treatment in Shanghai Chest Hospital from Jan 2018 to Dec 2018 were retrospectively analyzed. According to imaging 1mm layer thickness enhanced CT as a tool, the RRLN lymph node short diameter (ctNd) size was measured. All patients were divided into four groups: (A) CT images without RRLN lymph node, (B) CT images with RRLN lymph node was 0<ctNd<5mm, (C) CT images with RRLN lymph node was 5mm≤ctNd<10mm, (D) CT images with RRLN lymph node was ctNd≥10mm. The RRLN lymph node metastasis of each group was analyzed, and the influencing factors were analyzed to establish a predictive model. Results Among all patients, 87.6% of the patients had lymph nodes detected in the RRLN surgical specimens. The sampling rate was 14.5% (121/832), the RRLN lymph node metastasis rate was 19.48%, and the total lymph node metastasis rate was 48.7%. RRLN lymph nodes (57.1%) (A-132, B-43, C-125, D-9) were seen in the preoperative CT scan of 176 patients. The postoperative pathological RRLN lymph node metastasis rate was 9.1%, 18.6%, 27.2% and 66.7%, respectively (P=0.01). Multivariate analysis showed that ctNd, tumor location and N stage were risk factors for RRLN lymph node metastasis (P<0.05). The risk of upper esophageal cancer metastasis was higher than middle segment esophageal cancer (28.2% vs 18.6%, P<0.05). The higher the risk of right laryngeal lymph node metastasis was detected in the later N stage (cN0-13.2%, cN1-21.5%, cN2-46.7%, P<0.05). The 6.5mm short diameter of RRLN lymph nodes on CT scan is the critical value of metastasis at this position (sensitivity 50%, specificity 83.5%), and the higher the risk of metastasis was seen in the larger the short diameter (P<0.05). Conclusion More than 6.5mm short diameter in the CT scan image should be the clinical predictor of lymph node metastasis of the right recurrent laryngeal nerve. The higher risk of metastasis was seen in the greater short diameter. Upper esophageal cancer and multiple lymph node metastasis increase the risk of RRLN lymph node metastasis. Key words esophageal cancer, lymph node metastasis, recurrent laryngeal nerve, computed tomography

PS01.223: ‘ENERGY-LESS TECHNIQUE’ WITH MINI-CLIPS FOR RECURRENT LARYNGEAL NERVE LYMPH NODE DISSECTION IN PRONE THORACOSCOPIC ESOPHAGECTOMY FOR ESOPHAGEAL CANCER

2018 ◽  
Vol 31 (Supplement_1) ◽  
pp. 113-113
Author(s):  
Hiroshi Saeki ◽  
Yuichiro Nakashima ◽  
Nobuhide Kubo ◽  
Kosuke Hirose ◽  
Shun Sasaki ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Lymph Node ◽  
Hospital Stay ◽  
Recurrent Laryngeal Nerve ◽  
Lymph Node Dissection ◽  
Laryngeal Nerve ◽  
Thoracoscopic Esophagectomy ◽  
Minor Bleeding ◽  
Surgical Results ◽  
Node Dissection

Abstract Background Esophagectomy with radical mediastinal lymph node dissection remains the standard option for the curative treatment of esophageal squamous cell carcinoma. However, meticulous lymph node dissection along the recurrent laryngeal nerve (RLN), often results in recurrent laryngeal nerve paralysis (RLNP), leading to postoperative laryngopharyngeal dysfunction. Recently, thoracoscopic radical esophagectomy has been performed as a minimally invasive surgery for esophageal cancer. Although thoracoscopic surgery appears to reduce the risk of postoperative pulmonary complications and permits earlier postoperative recovery, the issue of postoperative RLNP remains unresolved. Methods We had attempted to simply cut the vessels around RLN sharply with scissors without using energy device in order to prevent RLN paralysis. However, these procedures often result in minor bleeding. Then we introduced the use of mini-clips for hemostasis before cutting the vessels with scissors. In this study, we analyzed data from 64 patients with esophageal cancer who underwent thoracoscopic esophagectomy in prone position. The patients were divided into two groups according to the period of operation: before and after the introduction of energy-less techniques with mini-clips. Surgical results were compared between the 2 groups. Results With regard to RLNP, the incidence was 24.0% in the before group; this incidence went down to 5.1% in the after group, after the introduction of energy-less techniques with mini-clips (P = 0.0259). Moreover, length of hospital stay after surgery was significantly shortened, from 36.1 days to 22.0 days, after the introduction of energy-less techniques with mini-clips (P = 0.0075). There were two operators performing thoracoscopic esophagectomy at our institution: surgeon A, a senior doctor with a 22-year career; and surgeon B, a junior doctor with a 12-year career. We compared all surgical results and found that there were no differences between the two doctors. Conclusion Our energy-less technique with mini-clips in RLN lymph node dissection could keep the surgical field dry by preventing minor bleeding. This contributed both to prevent RLNP and to shorten the patient's hospital stay. This technique was also considered useful for standardizing procedures within our institution, because special skills were not needed. Disclosure All authors have declared no conflicts of interest.

scholarly journals A Case of Esophageal Cancer With Right Vertebral Artery Variation Observed During Thoracoscopic Esophagectomy

2020 ◽  
Author(s):  
Yuta Sato ◽  
Yoshihiro Tanaka ◽  
Takeharu Imai ◽  
Yuji Hatanaka ◽  
Naoki Okumura ◽  
...  
Keyword(s):  
Esophageal Cancer ◽  
Lymph Node ◽  
Blood Vessel ◽  
Vertebral Artery ◽  
Recurrent Laryngeal Nerve ◽  
Anatomical Variation ◽  
Laryngeal Nerve ◽  
Thoracoscopic Esophagectomy ◽  
Node Dissection ◽  
The Right

Abstract BackgroundVariation of the vertebral artery bifurcation is rare. This branching abnormality can make it difficult to identify the recurrent laryngeal nerve (RLN) during thoracoscopic esophagectomy. There are a few reports on abnormal branching of the vertebral artery but none related to esophagectomy. We report the case together with the results of the evaluation of vertebral artery bifurcation and length in 50 patients with esophageal cancer in our hospital.Case presentationThoracoscopic esophagectomy was performed on a 70-year-old patient with esophageal cancer. During lymph node dissection, an unusual blood vessel was found running along the right subclavian artery (RSA). This blood vessel made it difficult to identify the right RLN. We determined this blood vessel to be the right vertebral artery (RVA) branching far more centrally than usual. Because this anatomical abnormality was clarified, we could then recognize that the right RLN coursed around the RVA and the RSA and thus was running in a larger arch than usual.ConclusionKnowledge of such anatomical variation is important in thoracoscopic esophagectomy to prevent iatrogenic injury of the RLN and the vertebral artery.

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