Hypothesis: Older age, male sex, and low yearly hospital volume of cholecystectomy may increase the risk of bile duct injury (BDI), whereas the use of intraoperative cholangiography may decrease the risk. The incidence of BDI at cholecystectomy may have increased after the introduction of laparoscopic cholecystectomy. Design: Nationwide population-based study of all cholecystectomies registered in the Swedish Inpatient Registry from 1987 through 2001. Setting: All hospitals performing inpatient cholecystectomies in Sweden. Patients: Cholecystectomies were identified using International Classification of Diseases, Ninth and 10th Revisions surgical procedure codes. After exclusion of patients with hepatobiliary and pancreatic malignancies, patients with codes indicating reconstructive bile duct operations within 1 year after cholecystectomy were considered BDI cases. Risk factors for BDI were analyzed using multivariate logistic regression. The incidence proportion of BDI was calculated by dividing the number of cases by the number of cholecystectomies. Main Outcome Measures: Relative risks were estimated using odds ratios with 95% confidence intervals, and incidence proportion was used to describe incidence. Results: Among 152 776 cholecystectomies, 613 reconstructed BDIs (0.40%) were identified. Older age and male sex were positively associated with BDI, whereas intraoperative cholangiography was negatively associated with BDI. The incidence proportion of BDI was 0.40% from 1987 to 1990, decreased to 0.32% from 1991 to 1995, and increased to 0.47% from 1996 to 2001. The mean yearly hospital volume did not affect the risk of BDI. Conclusions: Older age and male sex increased the risk of BDI, whereas intraoperative cholangiography was protective. There was a small to moderate long-term increase in the risk of BDI after the introduction of laparoscopic cholecystectomy compared with the prelaparoscopic era.

Patients with on-going acute cholecystitis had twice the risk of sustaining a biliary lesion compared to patients without acute cholecystitis. There was a relation between the Tokyo guidelines severity grading of acute cholecystitis and injury risk and the intention to use intraoperative cholangiography halved the risk of reconstructed bile duct injury during cholecystectomy.

The LCBDE procedure can be performed without increased risk of late bile duct complications.

OBJECTIVES: Chronic pancreatitis (CP) is characterized by several disease-related complications and multiple etiological risk factors. Past studies of associations between complications and risk factors have mostly been limited to single complications or highly focused on single etiologies. Using an objective data-driven approach (cluster analysis), we characterized complication clusters and their associations with etiological risk factors in a large cohort of patients with CP. METHODS: This was a multicenter, cross-sectional study including 1,071 patients with CP from the Scandinavian and Baltic countries. Complications to CP were classified according to the M-ANNHEIM system, and treelet transform was used to derive complication clusters. Cluster complication frequencies were analyzed for their association with main etiological risk factors (smoking and alcohol). RESULTS: The mean age of participants was 57 years and 66% were men. Alcohol (55%) and smoking (53%) were the most common etiological risk factors and seen in combination in 36% of patients. Cluster analysis identified 3 distinct complication clusters characterized by inflammation, fibrosis, and pancreatic insufficiencies. An independent association between inflammatory complications and alcoholic etiology was seen (odds ratio [OR] 2.00 [95% CI [confidence interval], 1.38–2.90], P < 0.001), whereas smoking was associated with fibrosis-related complications (OR 2.23 [95% CI, 1.56–2.3.20], P < 0.001) and pancreatic insufficiencies (OR 1.42 [95% CI, 1.00–2.01], P = 0.046). DISCUSSION: Three distinctive clusters of complications to CP were identified. Their differing associations with alcoholic and smoking etiology indicate distinct underlying disease mechanisms.

CTCs predict nonresectability and impaired survival. CTC analysis should be considered as a tool for decision-making before liver resection in these patients.