Related Experiment Video
Updated: Jul 9, 2025
Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Enlarged fistulotomy of the papilla as access to the biliary tract during ERCP
Alexandre Gomes1, Ana Sarah Rafka Haidar2, Giovani Caetano Padilha2
1Department of Surgery, Faculty of Medical Sciences and Health, Pontifical Catholic University of São Paulo (FCMB / PUC-SP), São Paulo, Brazil. endoclinic@endoclinic.med.br.
Background:
Demonstration of access to the bile duct through Enlarged Papillary Fistulotomy, a method different from conventional fistulotomy.
Aims:
Demonstration of the EFP technique with dissection in layers of the papilla for accessing the common bile duct, its efficiency and safety, rescue of cases of failure in cannulation and cases of access failure by EFP in the first attempt, facilitating cannulation in the second attempt.
Methods:
Cross-sectional study, with retrospective data collection from 2233 ERCP exams with 528 EFP procedures, analysis of success and complications.
Results:
528 patients underwent EFP on the first attempt, with success in 465 cases (88.06%) and 63 failures (11.94%). Of these failures, 33 patients (52.38%) returned for a second EFP attempt, with success in 30 cases (90.9%) and failure in 3 cases (9.1%). Deep bile duct cannulation was achieved in 93.75% of EFP procedures, and cannulation failure occurred in 33 cases (6.25%).
Conclusion:
EFP showed efficiency in CBD cannulation, did not induce post-ERCP pancreatitis, no cases of perforation or false tract, but resulted in higher rates of minor bleeding, rescued cases of access failure by EFP, facilitated the posterior approach on the second attempt, it is safe, effective, low risk and associated with few comorbidities.
