Endoscopic retrograde cholangiopancreatography (ERCP) is an indispensable therapeutic procedure in the management of a wide spectrum of pancreaticobiliary disorders, including choledocholithiasis, benign and malignant biliary strictures, pancreatic ductal obstructions, and postoperative bile leaks. The procedure has revolutionized the management of these conditions, often obviating the need for surgery.Precut papillotomy and Double Guidewire Technique (DGT) are both salvage techniques used in ERCP when standard biliary cannulation fails.
Precut (Needle-Knife Precut): An endoscopic incision made into the papilla to gain access to the bile duct when conventional methods fail.
Intentional Double Guidewire Technique (DGT): A technique where a guidewire is intentionally placed into the pancreatic duct to act as a "guide" or anchor, straightening the biliary axis and allowing a second guidewire to be inserted into the bile duct.
Valid indication for ERCP (benign or malignant obstruction).
Native papilla (no prior sphincterotomy).
> 5 minutes of cannulation attempts.
> 5 contacts with the papilla.
Ampullary mass or tumor preventing standard cannulation view.
Surgically altered anatomy (e.g., Billroth II, Roux-en-Y).
Uncorrectable coagulopathy (INR > 1.5 or Platelets < 50,000).
Acute pancreatitis present prior to ERCP.