Golf and endoscopic retrograde cholangiopancreaticography (ERCP) share a commonality where the highs of the successes are balanced by the lows of the frustrations. ERCP cannulation is one of the most difficult maneuvers in gastrointestinal endoscopy and is a requirement for the procedure's therapeutic benefit. As such, many different techniques have been developed to facilitate cannulation. The mission of the procedure is to provide access to the biliary or pancreatic duct typically with a guidewire, which can then be used as a platform for therapeutic and diagnostic procedures. An inherent challenge in ERCP is that the operator must make use of a two-dimensional imaging surrogate through fluoroscopy and navigate the threedimensional biliary or pancreatic duct pathway. The advanced nature of this procedure lends itself to higher complication rates including post-procedure pancreatitis, bleeding, perforation and infection. Complications of ERCP have been evaluated by meta-analyses with pancreatitis reported at 3.5% of cases, bleeding at 0.3-2%, perforation <0.6% and infection <3%.1 Complications are also a function of factors associated with the patient, procedure and operator, resulting in variable susceptibility to the adverse outcomes of ERCP.
1,2Malcolm Gladwell in his book Outliers: The Story of Success suggests that 10 000 h of correctly carrying out a skill is required in order to obtain expertise.3 ERCP as a discipline is one such example, as its mastery requires the experience of over thousands of procedures. Many different techniques, equipment platforms, devices and strategies have been developed to assist ERCP cannulation.Standard cannulation techniques will involve use of a 5-7 Fr cannula or sphincterotome with either a blunt or tapered tip often with a guidewire. That wire will either be long (450 cm) or short (260 cm) with a straight or angled tip and usually 0.035 inches or 0.025 inches in diameter. The catheter would be positioned in front of Vater's ampulla and bowed to align along the biliary duct axis. Sometimes, the devices can be steered for better alignment with the papilla.The papillotome is inserted into the papillary orifice and the guidewire is advanced under fluoroscopic guidance until observed to enter the bile duct. Contrast injection is not always routinely administered prior to advancement of the guidewire into the common bile duct (CBD). Physicians will develop preferences based on their skill sets and that of their teams in order to provide the best outcome for their patients.The European Society of Gastrointestinal Endoscopy (ESGE) defines challenging biliary cannulation as five contacts with the papilla, or more than 5 min after the major ampulla has been located or after unintentional pancreatic duct cannulation or contrast injection. 4 At times, anatomy such as the shape, size or consistency of the ampulla, the position of the ampulla with a nearby diverticulum, gastrointestinal stricture or altered anatomy from prior surgery may contribute to the complexity.In this issue of ...