Laparoscopic cholecystectomy (LC) is considered the gold standard for treatment of symptomatic gallbladder stones and has replaced the traditional open cholecystectomy (OC). The aim of this study is to evaluate the proper indications of the primary OC and conversion from LC and their predictive factors. This study includes all patients who underwent cholecystectomy between January 2011 and June 2016, whether open from the start (group A), conversion from laparoscopic approach (group B), or laparoscopic cholecystectomy (group C). There were 3269 patients underwent cholecystectomy. LC was completed in 3117 (95.4%) patients. The overall conversion rate was 83 (2.5%). The main two causes of conversion were adhesion in 35 (42.2%) patients and unclear anatomy in 29 (34.9%) patients. Primary OC was indicated in 69 (2.1%) patients due to previous history of upper abdominal operations in 16 (23.2%) patients and anesthetic problem in 21 (30.4%) patients. Age >60 years, male sex, diabetic patients, history of endoscopic retrograde cholangiopancreatography, dilated common bile duct, gallbladder status, adhesion, and previous upper abdominal operation were demonstrated to be independent risk factors for OC. Open cholecystectomy still has a place in the era of laparoscopy. Conversion should not be a complication, but it represents a valuable choice to avoid an additional risk. Safe OC required training because of the causes of conversion, usually unsafe anatomy, occurrence of complications, or anesthetic problems, in order to prevent disastrous complications.
Keywords: ERCP; Gallbladder stone; Laparoscopic cholecystectomy; Open cholecystectomy.