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1Endoscopic submucosal dissection and surgical treatment for gastrointestinal cancer显示文摘Endoscopic submucosal dissection (ESD) is widely usedin Japan as a minimally invasive treatment for earlygastric cancer. The application of ESD has expanded tothe esophagus and colorectum. The indication criteriafor endoscopic resection (ER) are established for eachorgan in Japan. Additional treatment, including surgery with lymph node dissection, is recommended when pathological examinations of resected specimens donot meet the criteria. Repeat ER for locally recurrent gastrointestinal tumors may be difficult because of submucosal fibrosis, and surgical resection is required inthese cases. However, ESD enables complete resectionin 82%-100% of locally recurrent tumors. Transanal endoscopic microsurgery (TEM) is a well-developed sur-gical procedure for the local excision of rectal tumors.ESD may be superior to TEM alone for superficial rectaltumors. Perforation is a major complication of ESD,and it is traditionally treated using salvage laparotomy.However, immediate endoscopic closure followed byadequate intensive treatment may avoid the need forsurgical treatment for perforations that occur during ESD. A second primary tumor in the remnant stomach after gastrectomy or a tumor in the reconstructedorgan after esophageal resection has traditionally required surgical treatment because of the technical difficulty of ER. However, ESD enables complete resectionin 74%-92% of these lesions. Trials of a combination ofESD and laparoscopic surgery for the resection of gastric submucosal tumors or the performance of sentinellymph node biopsy after ESD have been reported, butthe latter procedure requires a careful evaluation of itsclinical feasibility.Michio Asano 2012World Journal of Gastrointestinal Endoscopy2012,4,10:12
2Transanal polypectomy using single incision laparoscopic instruments显示文摘Transanal excision of rectal polyps with laparoscopic instrumentation and a single incision laparoscopic port is a novel technique that uses technology originally developed for abdominal procedures from the natural orifice of the rectum. Transanal endoscopic microsurgery (TEM) is a well established surgical approach for certain benign or early malignant lesions of the rectum, under specific indications. Our technique is a hybrid technique of transanal surgery, a reasonable method for polyp resection without the need of the sophisticated and expensive instrumentation of TEM which can be applied whenever endoscopic or conventional transanal surgical removal is not feasible.Dimitrios Dardamanis Dimitrios Theodorou George Theodoropoulos Andreas Larentzakis Maria Natoudi Georgia Doulami Christina Zoumpouli Haridimos Markogiannakis Stylianos Katsaragakis George C Zografos 2011World Journal of Gastrointestinal Surgery2011,3,4:6
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