Safety and Efficacy Study of Transumbilical Laparoendoscopic Single Site Cholecystectomy

Randomized Controlled Trial Of Transumbilical Laparoendoscopic Single Site Cholecystectomy Versus Conventional Laparoscopic Cholecystectomy

The purpose of this study is to scientifically evaluate the safety, efficacy and cosmetic results of transumbilical laparoendoscopic single site cholecystectomy.

As the natural orifice during embryonic, the transumbilical surgery not only can mask the abdominal scar and avoid infection produced by puncturing stomach, vagina or rectum in NOTES,but also can be played by the conventional laparoscopic instruments. TU-LESS (transumbilical laparoendoscopic single site surgery), is considered to be the most feasible NOTES(natural orifice transluminal endoscopic surgery)technology at present. Researches about TU-LESS mostly are case reports and small samples or the control experiments up to now,there are not persuasive randomized controlled trail between TU-LESS and conventional laparoscopic cholecystectomy. So the investigators design this prospective randomized controlled trail to scientifically evaluate the safety, efficacy and cosmetic results of transumbilical laparoendoscopic single site cholecystectomy .

Inclusion Criteria:

• 18 Years to 5 Years
• Benign gallbladder diseases
• KPS ≥ 70
• informed consent

Exclusion Criteria:

• Obstructive jaundice
• Broadening of the common bile duct
• Gallstone pancreatitis
• Serious heart,brain,lung, metabolic diseases history
• History of upper abdominal surgery
• Pregnancy or breast-feeding women
• Refuse TU-LESSC
• BMI(Body Mass Index)≥ 30