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  • Title: [Application of mesoesophagus suspension technique in upper mediastinal lymph node dissection during thoracoscopic esophagectomy].
    Author: Zhang Z, Song Q, Lin J, Kang M.
    Journal: Zhonghua Wei Chang Wai Ke Za Zhi; 2016 Sep 25; 19(9):999-1003. PubMed ID: 27680067.
    Abstract:
    OBJECTIVE: To explore the application of mesoesophagus suspension technique to improve the upper mediastinal lymph node dissection during thoracoscopic esophagectomy in the treatment of esophageal cancer. METHODS: Clinical data of 164 thoracic esophageal cancer patients who underwent combined thoracoscopic and laparoscopic esophagectomy with two-field lymph node dissection in the Union Hospital of Fujian Medical University between October 2012 and June 2015 were retrospectively analyzed. Among 164 patients, 80 cases underwent upper mediastinal lymph node dissection by traditional method (traditional group), and the remaining 84 cases underwent upper mediastinal lymph node dissection by mesoesophagus suspension technique (suspension group). The operation time, estimated blood loss, number of excised lymph nodes and postoperative complications were compared between the two groups. RESULTS: There were no significant differences in gender, age, location of tumor and pathology stage between the two groups. The operation time in the two groups was similar. The suspension group had significantly less thoracic blood loss than traditional group [(85±5) ml vs.(140±7) ml, P=0.000]. The number of dissected lymph nodes of bilateral recurrent laryngeal nerve was more in suspension group [median (interquartile range): left: 3 (2 to 4) vs. 2 (1 to 3), P=0.013; right: 3(2 to 6) vs. 2(1 to 3), P=0.007]. There was no significant difference in metastatic rate of lymph node in different sites between the two groups. The highest metastatic rate of suspension and traditional group was found at paracardia lymph nodes[22.6%(19/84) and 22.5%(18/80)], the next was at right laryngeal nerve lymph nodes [17.9%(15/84) and 15.0%(12/80)] and left laryngeal nerve lymph nodes [16.7%(14/84) and 12.5%(10/80)]. There were no significant differences with regard to the incidence of major postoperative complications between two groups, including respiratory complication, anastomotic leakage, vocal cord palsy. CONCLUSIONS: Upper mediastinal bilateral recurrent laryngeal nerve lymph node is the predilection site of lymphatic metastasis of thoracic esophageal cancer. Application of mesoesophagus suspension technique in thoracoscopic esophagectomy can improve the clearance quality of bilateral recurrent laryngeal nerve lymph nodes.
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