Abstract
In gastrointestinal laparoscopic surgery, paraaortic lymphadenectomy is usually performed using a transperitoneal approach (TP), and the use of an extraperitoneal approach (EP) has been scarcely reported. Biopsy of the para-aortic lymph nodes was performed using TP with 3 ports on the patient with esophageal cancer, and EP lymphnode biopsy was performed with 4 ports with malignant lymphoma. The effect of TP vs. EP was evaluated regarding the intraoperative and postoperative complications. TP was difficult for massive biopsy, 1.5cm sized several lymph nodes along the common hepatic artery were biopsied. On the other hand, using EP a 5cm sized paraaortic lymph node was successfully performed. There was no difference between TP and EP in intraoperative blood loss and operation time, respectively, but EP showed great advantage with respect to postoperative complications and length of administration in hospital. Laparoscopic biopsy of para-aortic lymph nodes using EP is a useful method compared with the TP.
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