Early precut sphincterotomy and the risk of endoscopic retrograde cholangiopancreatography related complications: An updated meta-analysis

Table 3 Techniques of pre-cut in randomized controlled trials

Ref.	Technique used in persistent attempts group	Timing of early precut	Precut technique	Timing of persistent attempts
Tang et al[10]	Non-wire guided sphincterotome	Biliary cannulation failed within 12 min	Needle knife precut starting at orifice	Biliary cannulation failed within 15 min
Zhou et al[19]	Non-wire guided and wire guided sphincterotome	Biliary cannulation failed within 10 min or 3 unintended pancreatic duct cannulation	Needle knife precut starting at orifice and fistulotomy	Not available
de Weerth et al[12]	Wire guided sphincterotome	Immediate precut for direct bile duct access	Erlangen type sphincterotome on the papillary roof	Biliary cannulation failed within 10 min or 3 unintended pancreatic duct cannulation
Khatibian et al[18]	Wire guided sphincterotome	Immediate needle knife fistulotomy for direct CBD access	Needle knife fistulotomy	Biliary cannulation failed within 15 min
Manes et al[20]	Non-wire guided and wire guided sphincterotome	Biliary cannulation failed within 10 min	Needle knife fistulotomy	Biliary cannulation failed within 10 min
Cennamo et al[11]	Wire guided sphincterotome	Biliary cannulation failed within 5 min or 3 unintended pancreatic duct cannulation	Needle knife precut starting at orifice	Biliary cannulation failed within 20 min post randomization
Swan et al[14]	Wire guided sphincterotome	Biliary cannulation failed within 10 min	Needle knife precut starting from superior aspect of orifice	Biliary cannulation failed within 10 min post randomization