Efficacy and safety of radiofrequency ablation in patients with unresectable malignant biliary strictures.

Introduction: previous studies have shown that endoscopic radiofrequency ablation in unresectable biliary duct tumors prolongs survival.

Methods: this was an observational study of patients with an unresectable malignant stricture. The aim was to evaluate survival, stent patency and adverse events of radiofrequency compared with a matched control group.