Impact of changing our cannulation method on the incidence of post-endoscopic retrograde cholangiopancreatography pancreatitis after pancreatic guidewire placement

Table 4 Study on pancreatic guidewire placement

Primary author	Study design	No. of patients	Cannulation method	Success rate fo biliary cannulation	Incidence fo post-ERCP pancreatitis
Maeda[8]	RCT	Control (n = 26), attempted PGW (n = 27)	CI	54%, 93%	0%, 0%
Ito[9]	OS	PGW (n = 113)	CI	73%	12%
Herreros de Tejada[10]	RCT	Control (n = 87), attempted PGW (n = 76)	WGC	56%, 47%	8%, 17%
Ito[11]	RCT	PGW with no-PS (n = 35), PGW with PS (n = 35)	CI	94%, 80%	23%, 2.9%
Present study	OS	PGW (n = 142)	CI/WGC (104/38)	69% (CI 66%, WGC 76%)	16% (CI 20%, WGC 2.6%)

RCT: Randomized controlled trial; OS: Observational study; PGW: Pancreatic guidewire placement; PS: Pancreatic stent; CI: Contrast injection; WGC: Wire-guided cannulation.