title: Preliminary study on the application of an umbrella-like abdominal wall-lifting device in gasless laparoscopic surgery.
abstract: Abstract Background: In laparoscopic surgery with CO2 pneumoperitoneum, serious complications often occur for elderly patients and those who undergo long operations. These complications mainly include respiratory and circulatory system changes. In patients with tumors, release of free tumor cells into the abdominal cavity is believed to be possible. Gasless laparoscopic techniques can avoid these complications of CO2 pneumoperitoneum. Currently, the main shortcoming of gasless laparoscopic techniques is inadequate operative space. Because of this shortcoming, gasless techniques have not been widely applied in clinical practice.
  
  
  METHODS
  We herein describe a new technique of gasless laparoscopic cholecystectomy in pigs using a self-designed umbrella-like abdominal wall-lifting device. This device lifts up the anterior abdominal wall by opening the umbrella leaf in the abdominal cavity.
  
  
  RESULTS
  Five pigs underwent laparoscopic cholecystectomy using this technique. The operation times were 85, 40, 28, 21, and 24 minutes. The corresponding bleeding volumes were 11, 20, 5, 2, and 8 mL.
  
  
  CONCLUSIONS
  These preliminary outcomes suggest that the umbrella-like abdominal wall-lifting technique is safe and feasible in gasless laparoscopic surgery and can provide sufficient exposure of the operative field. Further study in the form of randomized controlled trials is needed to investigate the advantages of this new technique.
authors: Department of General Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning City, Guangxi Zhuang Autonomous Region, China. wudongbobo@126.com
authors: Dong-Bo
authors: DB
authors: Wu
authors: Sheng-Fu
authors: SF
authors: Yang
authors: Kui-Hua
authors: KH
authors: Geng
authors: Su-Jiao
authors: SJ
authors: Qin
authors: Yan-Li
authors: YL
authors: Bao
authors: Xiang
authors: X
authors: Chen
authors: Guang-Ping
authors: GP
authors: Zheng
mesh_terms: D034861:Abdominal Wall; D000818:Animals; D004867:Equipment Design; D010535:Laparoscopy / Q000295:instrumentation* / Q000379:methods*; D008297:Male; D013552:Swine; D013556:Swine, Miniature