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Effect of precut sphincterotomy on biliary cannulation based on the characteristics of the major duodenal papilla
Akira Horiuchi1, Yoshiko Nakayama, Masashi Kajiyama
1Department of Gastroenterology, Showa Inan General Hospital, Komagane, Japan.
Background & Aims:
Therapeutic endoscopic retrograde cholangiopancreatography requires selective cannulation of the relevant ductal system. The aim of this study was to evaluate the efficacy and safety of 3 different precutting techniques for difficult bile duct access on the basis of the characteristics of the major duodenal papilla (MDP).
Methods:
The patients were classified into small MDP, large MDP, or swollen MDP groups on the basis of the characteristics of the MDP. The precutting technique was based on MDP characteristics: transpancreatic sphincterotomy for small MDPs, needle-knife precut sphincterotomy for large MDPs, and needle-knife fistulotomy for swollen MDPs. The success rate of bile duct cannulation and the complication rates were compared.
Results:
A total of 86 patients (58 men; mean age, 76 years) with difficult bile duct cannulation required precutting technique; 48 had transpancreatic sphincterotomy, 30 had needle-knife precut sphincterotomy, and 8 had needle-knife fistulotomy. With precutting, the procedure was successful in 46 of 48 (96%), 27 of 30 (90%), and 8 of 8 patients (100%), respectively. The overall success rate of biliary cannulation after 2 endoscopic retrograde cholangiopancreatography attempts was 100%. The overall complication rate was 4.7% (4 of 86) (2 mild bleeding and 2 mild pancreatitis).
Conclusions:
Selection of the precutting technique on the basis of the characteristics of the MDP resulted in a high degree of success and a low complication rate in cases of difficult bile duct cannulation.
