Published online Feb 16, 2019. doi: 10.4253/wjge.v11.i2.95
Peer-review started: December 6, 2018
First decision: December 20, 2018
Revised: January 25, 2019
Accepted: February 13, 2019
Article in press: February 13, 2019
Published online: February 16, 2019
Core tip: Intraductal radiofrequency ablation (RFA) represents a procedure that encompasses the use of a biliary catheter device, via an endoscopic approach, mainly endoscopic retrograde colangiopancreatography. Indications for biliary RFA described in literature are: Palliative treatment of malignant biliary strictures, avoiding stent occlusion, ablating ingrowth of blocked metal stents, prolonging stent patency, ablating residual adenomatous tissue after endoscopic ampullectomy. Existing studies suggest a favorable effect on survival and stent patency. Moreover, up-to-date feeling is that evidence supporting RFA is limited because most of the analyses have been achieved using a retrospective design, on diminutive and dissimilar cohorts of patients.