Effect of Precut Sphincterotomy on Biliary Cannulation Based on the Characteristics of the Major Duodenal Papilla  Akira Horiuchi, Yoshiko Nakayama, Masashi Kajiyama, Naoki Tanaka  Clinical Gastroenterology and Hepatology  Volume 5, Issue 9, Pages 1113-1118 (September 2007) DOI: 10.1016/j.cgh.2007.05.014 Copyright © 2007 AGA Institute Terms and Conditions

Figure 1 Endoscopic views of an MDP. (A) A small MDP; (B) a large MDP; (C) a swollen MDP. The papilla without orad protrusion was recognized as a small MDP, whereas the papilla with orad protrusion was considered to be a large MDP. The papilla with the marked swelling of orad protrusion was defined as a swollen MDP. In this case the border between the papilla and orad protrusion was indistinct. Clinical Gastroenterology and Hepatology 2007 5, 1113-1118DOI: (10.1016/j.cgh.2007.05.014) Copyright © 2007 AGA Institute Terms and Conditions

Figure 2 (A, B) Endoscopic photographs of transpancreatic sphincterotomy. (C, D) Endoscopic photographs of needle-knife precut sphincterotomy. (E, F) Endoscopic photographs of needle-knife fistulotomy. Clinical Gastroenterology and Hepatology 2007 5, 1113-1118DOI: (10.1016/j.cgh.2007.05.014) Copyright © 2007 AGA Institute Terms and Conditions

Figure 3 Success rate according to the type of primary precut technique on the basis of the characteristics of the MDP. TPS, transpancreatic sphincterotomy; NKS, needle-knife precut sphincterotomy; NKF, needle-knife fistulotomy. Clinical Gastroenterology and Hepatology 2007 5, 1113-1118DOI: (10.1016/j.cgh.2007.05.014) Copyright © 2007 AGA Institute Terms and Conditions