[The analysis of follow-up results of 612 cases of cholecystolithiasis treated with the minimal invasive operation with gallbladder preserved via choledochoscopy].

Objective: To discuss the feasibility of the operation of minimal invasive with gallbladder preserved via choledochoscopy.

Methods: From February 1992 to June 2006, there were 760 patients who underwent cholecystolithiasis treated with the minimal invasive operation with gallbladder preserved via choledochoscopy, among which there were 428 males and 332 females, aged from 18 to 81 years old. All cases were diagnosed by ultrasonography and their gallbladder functions were proved normal by the examination of oral cholecystography or ECT before operation.