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Background We introduce a novel operative technique to dissect lymph nodes adjacent to the recurrent laryngeal nerve, referred to as the "native tissue preservation" technique. Using this technique, there was no damage to the recurrent laryngeal nerve, which is maintained in its anatomical position. Methods From September 2016 to December 2018, minimally invasive esophagectomy was performed in the left lateral decubitus position in 87 patients with esophageal cancer. The native tissue preservation technique for lymphadenectomy around the recurrent laryngeal nerve was used, and all patients were evaluated for recurrent laryngeal nerve paralysis. Results Minimally invasive esophagectomy was completed in all patients without conversion to thoracotomy. Although an extended lymphadenectomy was performed in all patients, there were no grade II or higher complications (Clavien-Dindo classification) and no incidence of recurrent laryngeal nerve paralysis. Conclusion The native tissue preservation technique may reduce the incidence of recurrent laryngeal nerve paralysis after minimally invasive esophagectomy with radical lymph node dissection.

The aim of this study was to assess the efficacy of prophylactic drain placement in laparoscopic total gastrectomy (LTG). Ninety-four patients with gastric cancer who underwent LTG between December 2007 and December 2014 were enrolled in this study. A tube drain was placed in 29 patients after considering it necessary by operators, whereas no tube drain was placed in remaining patients. All patients were classified into either the drain or the no-drain group and were investigated for clinical characteristics and surgical outcomes. Overall, complications occurred in 15 patients and were not significantly different between the drain and no-drain groups [5 (17.2%) versus 10 (15.4%) patients]. No significant difference was observed in median duration of postoperative hospital stay between the drain and no-drain groups (12 versus 12 days). There was no significant difference in the duration of hospital stay regardless of the presence of drains in both groups of patients who developed complications (with drain: 27 days versus without drain: 21.5 days) and those who did not develop complications (with drain: 12 days versus without drain: 12 days). In conclusion, on the basis of the results of this study, routine prophylactic drain placement in LTG may not be necessary because it does not offer any additional benefits for patients.

Cases of skeletal muscle metastasis of esophageal carcinoma are very rare, with few reports of long-term survival. We report a case of long-term survival after surgical resection of skeletal muscle metastasis. A 56-year-old man with advanced esophageal cancer and early gastric cancer underwent thoracoscopic esophagectomy, 2-field lymph node dissection, partial gastrectomy and gastric tube reconstruction. Six months later, cervical lymph node metastasis and mediastinal lymph node recurrence were found. Therefore, the patient underwent cervical lymph node dissection and adjuvant chemoradiotherapy. Two years and 3 months after the esophagectomy, a muscle metastasis was found in the left shoulder, and he underwent tumor dissection, followed by adjuvant chemotherapy for a year. There has been no sign of recurrence since, even 13 years after the esophagectomy. We believe our aggressive surgical treatment might have led to long-term survival.

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