Data collection
IHD stone, bile duct stones, infection, pancreatitis, diabetes
POSTOPERATIVE COMPLICATIONS, INFECTION, PANCREATITIS, HYPERTENSION, DIABETES
The demographic and clinical data, including age, sex, body mass index (BMI), diabetes, hypertension, previous upper abdominal surgery (PUAS), history of endoscopic retrograde cholangiopancreatography (ERCP), and pancreatitis were recorded. Laboratory blood test results included white blood cell count, albumin (ALB), total bilirubin, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, and gamma-glutamyl transpeptidase levels. Preoperative abdominal ultrasonography, computed tomography, magnetic resonance imaging, or magnetic resonance cholangiopancreatography was evaluated by an experienced radiologist. The following data were collected: the maximum diameter of CBD stone, CBD stone’s location, The number of stones in CBD, IHD stone, gallbladder wall thickness, CBD wall thickness, the maximum diameter of CBD, and stone size/CBD size. All the included data were the most recent preoperative results for the patients. In addition, the type of surgery performed was also recorded.Using the duodenum and pancreas as the boundary, we divided the stone locations into four parts: duodenal upper segment, duodenal posterior segment, pancreatic segment, and medial wall of the duodenum [We concurrently computed the ratio between the maximum diameter of the bile duct stones and the maximum diameter of the common bile duct for each patient. By calculating the Youden’s Index, we found that the optimal cut-off value is 0.75.In addition, we recorded the operative time, stone clearance rate, T-tube placement, mortality, incision infection, postoperative complications, duration of postoperative antibiotic use, and postoperative hospital stay to analyze the effect of conversion to laparotomy during the perioperative period.