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Updated: Feb 19, 2026
Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
[Efficacy and complications of double guidewire technique in biliary tract cannulation]
Edson Guzmán-Calderón1, Augusto Vera2, Ramiro Díaz2
1Hospital Nacional Edgardo Rebagliati Martins. Lima, Perú; Clínica Internacional. Lima, Perú; Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas. Lima, Perú.
Objective:
To determine the efficacy and safety of double guidewire technique in patients with difficult biliary cannulation during ERCP.
Materials And Methods:
We conducted a retrospective cohort study of all ERCPs performed between January 2015 and July 2016. DGT was performed in patients for whom biliary cannulation was difficult and guidewire insertion into the pancreatic duct (PD) was inadvertently achieved while attempting the standard WGC technique.
Results:
24 patients were enrolled with ERCP and DGT; 17 were female (70.8%) and 7 male (29.2%). The average age was 65.21±16.49 years. The most frequent indication was choledocholithiasis (62.5%), then cholangiocarcinoma (12.5%). Post ERCP diagnosis was choledocholithiasis (45.8%), and papillary fibrosis (29.2%). The success of DGT was 87.5%. Three cases of failure cannulation with the DGT were reported, two patients had pancreatitis post ERCP (8.3%), there were no cases of perforations.
Conclusions:
TDG, is an effective alternative to difficult biliary cannulation during ERCP with conventional methods; with a high success rate and low rate of post ERCP pancreatitis, similarly to reported in other countries.
