Preoperative biliary stents in pancreatic cancer.

Background: Pancreatic cancer is a common digestive cancer with high mortality, and surgical resection is the only potential curative treatment option. Pancreatic head cancer is usually accompanied by biliary obstruction, which potentially increases surgical complications following pancreaticoduodenectomy. Thus, preoperative biliary drainage has long been advocated.

Methods: A review of the literature using Medline, Embase and Cochrane databases was undertaken.

Results: Endoscopic or percutaneous biliary stent placement is technically successful in most patients. The use of routine preoperative biliary drainage in the setting of pancreatic cancer with biliary obstruction is controversial. Prospective studies have shown that complications related to preoperative biliary drainage using endoscopic placement of traditional plastic endoprostheses increase the overall morbidity compared to pancreaticoduodenectomy alone. Placement of self-expandable metal stents could reduce stent-related complication rates such as early occlusion because of prolonged patency, especially when surgery is delayed.

Conclusions: Pancreatic cancer patients with deep jaundice and expected delay prior to curative intent surgery are potential candidates for temporary biliary drainage. Cholangitis remains a formal indication for early, urgent preoperative biliary decompression for patients with pancreatic cancer.