title: New technique of intracorporeal anastomosis and transvaginal specimen extraction for laparoscopic sigmoid colectomy.
abstract: BACKGROUND
  Despite the growing acceptance of laparoscopic colon surgery, an abdominal incision is needed to remove the specimen and perform an anastomosis. Recently, natural orifice specimen extraction (NOSE) and intracorporeal anastomosis have been proposed to minimize abdominal wall trauma and improve the quality of laparoscopic colon resections Objective: To evaluate the feasibility and safety of a new approach combining intracorporeal delta-shaped anastomosis and transvaginal specimen extraction for totally laparoscopic sigmoid colectomy.
  
  
  METHODS
  Mobilization of bowel and dissection of lymph nodes were performed laparoscopically. After both proximal and distal incisal edges about 10.0 cm distance from sigmoid neoplasm were transected with an Endoscopic Linear Cutter-Straight, a small incision about 1.0 cm was created on the each colon wall of the contralateral side of the mesentery. Then anvils of an Endoscopic Linear Cutter-Straight were inserted into each colon through the small incisions, and incision and anastomosis between the walls of each colon were performed with a linear stapler. A V-shaped anastomosis was made on the wall and the remnant openings was reclosed with the Endoscopic Linear Cutter-Straight. The culdotomy was enlarged with laparoscopic ultrasound dissector. Transvaginal extraction of specimens was accomplished through a wound protector.
  
  
  RESULTS
  Surgery was performed for 11 patients with sigmoid cancer. No intraoperative complications or conversions occurred. The mean operating time was 132 min. All the patients were treated laparoscopically without any postoperative complications.
  
  
  CONCLUSIONS
  The procedures of intracorporeal delta-shaped anastomosis and transvaginal specimen extraction are safe and oncologically acceptable for selected colon cancer cases.
authors.affiliation: Department of Abdominal Surgical Oncology, Cancer Hospital of the Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China E-mail : zhouzx2014@gmail.com.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Wang
authors.forename: Xing-Mao
authors.initials: XM
authors.lastname: Zhang
authors.forename: Hai-Tao
authors.initials: HT
authors.lastname: Zhou
authors.forename: Jian-Wei
authors.initials: JW
authors.lastname: Liang
authors.forename: Zhi-Xiang
authors.initials: ZX
authors.lastname: Zhou
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical / Q000379:methods*; D003082:Colectomy / Q000379:methods*; D012809:Colon, Sigmoid / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery; D012811:Sigmoid Neoplasms / Q000601:surgery*; D016896:Treatment Outcome