A Novel Prognostic Score Combining Preoperative Biliary Drainage and Inflammatory Status for Patients with Periampullary Cancers

Impact of biliary drainage method before pancreaticoduodenectomy on short- and long-term outcomes in patients with periampullary carcinoma and obstructive jaundice: A multicenter retrospective analysis

BACKGROUND

The optima preoperative biliary drainage before pancreaticoduodenectomy in patients with biliary tract and pancreatic cancer remains controversial.

METHODS

A total of 898 patients who underwent preoperative biliary drainage via endoscopic retrograde biliary drainage, endoscopic transnasal biliary drainage, or percutaneous transhepatic biliary drainage before pancreaticoduodenectomy for biliary tract and pancreatic cancer were included. Perioperative and long-term outcomes were analyzed.

RESULTS

The Clavien-Dindo grade ≥3 morbidity rates after pancreaticoduodenectomy were higher in the endoscopic retrograde biliary drainage (21.9%; P = .001) or endoscopic transnasal biliary drainage (20.2%; P = .007) than in the percutaneous transhepatic biliary drainage (9.7%) groups. In biliary tract cancer, the frequency of dissemination after pancreaticoduodenectomy was higher in the percutaneous transhepatic biliary drainage (15.3%) than in the endoscopic retrograde biliary drainage (0.7%; P = .001) and endoscopic transnasal biliary drainage (4.1%; P = .037) groups; percutaneous transhepatic biliary drainage was an independent factor associated with worse disease-free survival (P = .04), whereas in pancreatic cancer the frequency of dissemination and survival was comparable among the 3 preoperative biliary drainage methods. Albumin <3.9 g/dL was independently associated with worse overall survival in patients with both pancreatic (P = .038) and biliary tract (P = .002) cancers, respectively. During biliary drainage, external drainage (P = .038) was independently associated with albumin <3.9 g/dL; albumin was higher in endoscopic retrograde biliary drainage group than in endoscopic transnasal biliary drainage or percutaneous transhepatic biliary drainage groups after 21 days from tube insertion.

CONCLUSION

In biliary tract cancer, percutaneous transhepatic biliary drainage may carry the risk of increasing the incidence of disseminative recurrence. In pancreatic cancer, percutaneous transhepatic biliary drainage is preferable owing to fewer complications without influencing recurrence. However, if patients cannot undergo surgery immediately, endoscopic retrograde biliary drainage will be applicable to help the preservation of nutritional status, which can have an impact on survival.

Preoperative CA19-9 and GGT ratio as a prognostic indicator in ampullary carcinoma

BACKGROUND AND AIMS

In recent years, more and more inflammatory indicators have been studied to predict the long-term survival of patients with ampullary carcinoma (AC) after radical resection, but these prognostic indicators are still controversial. Therefore, based on previous inflammation scores, this study established a novel, easily accessible, more feasible and more predictive prognostic marker [Carbohydrate antigen199 to gamma-glutamyltransferase ratio (CA19-9/GGT)] to better assess the prognostic significance in AC patients undergoing radical resection.

METHODS

Overall survival (OS) and recurrence-free survival (RFS) were analyzed by Cox regression model. Correlation between CA19-9/GGT and clinicopathological variables were analyzed by Chi-squared test, Fisher ' s exact test, independent sample t test and Mann-Whitney U test. The performance of prognostic indexes is compared by the consistency index (C-index). The prediction accuracy of nomogram is further confirmed by calibration curve and decision curve analysis (DCA).

RESULTS

CA19-9/GGT was an independent risk factor affecting OS [P = 0.001, hazard ratio (HR) 2.459, 95% confidence intervals (CI) 1.450-4.167] and RFS (P = 0.002, HR 2.333, 95% CI 1.371-3.971) in multivariate analysis. The optimal cut-off value of CA19-9/GGT was 0.14. In CA19-9/GGT correlation analysis, high risk group (> 0.14) was significantly associated with poor prognosis. The predictive performance of CA19-9/GGT (OS: C-index = 0.753, RFS: C-index = 0.745) was confirmed to be superior to other prognostic indicators according to the C-index. Compared with the simple AJCC staging system, the Nomogram prediction model (OS: C-index = 0.787, RFS: C-index = 0.795) established by the combination of CA19-9/GGT and AJCC 8th TNM staging system has higher prediction accuracy.

CONCLUSIONS

CA19-9/GGT was an independent prognostic indicator after radical resection of AC. Incorporating CA19-9/GGT into the AJCC TNM staging system optimized the prediction accuracy of the TNM staging system, and further verified the predictive value of CA19-9/GGT.