[Acute and chronic cholecystopathies: analysis comparative of the rates and causes of conversion to laparotomy].

Objectives: To analyze the rate and main causes for conversion to open surgery among acute and chronic cholecystitis.

Methods: A retrospective analysis of 1359 patient medical charts submitted to cholecystectomy in hospitalUniversitário Cajuru's general surgery department was done during the period from january 2000 to october 2006.

Results: One thousand and sixty six laparoscopic cholecystectomies were performed, 701 (65.