Endoscopic ultrasound-guided double stenting for biliary and duodenal obstruction

Endoscopic biliary stenting for malignant biliary obstruction is currently the gold standard for biliary drainage. Biliary cancertreatment is crucial. Cases of gastric outlet obstruction that includes the duodenum because of cancer invasion and biliaryobstruction are seldom observed. The required treatment for such cases is simple biliary stenting and a different treatmentfor duodenal obstruction. Hence, double stenting for bile duct and duodenal obstruction has drawn attention. In the presentreview, we state different treatment strategies for malignant duodenal obstruction and then describe double stenting in biliaryobstruction that also includes non-biliary cancer malignant lesions and duodenal obstruction.