ObjectiveTo investigate the risk factors for conversion from laparoscopic (LC) to open cholecystectomy (OC).
MethodsThe clinical data of 2 850 cases of LC were retrospectively analyzed.
ResultsThe occurrence rate of conversion was 4.03%. The risk factors for LC conversion to open procedure comprised:two or more attacks of acute cholecystitis in recent 6 months;history of cholecysfifis>2 years; appeared righ quadrent abdominal signs, thickness of gallbladder wall≥3 mm;and hydrops of gallbladder.

ConclusionsThe risk factors for conversion of LC to OC were attacks of acute cholecystitis, the length of disease, tenderness of upper abdomen, thickening of gallbladder wall and hydrops of gallbladder. A detailed history, clinical examination with suitable imaging test,proper selection of patients and improving the skill of operators, may decrease the occurrence of the LC conversion rate and the complication after operation.OC should be selected for the patients with the above risk factors.