Is Needle Knife Fistulotomy An Effective First Step Strategy For All ERCPs?

Participants in this study will be undergoing a procedure called an endoscopic retrograde cholangiopancreatography (ERCP). This procedure is most commonly performed to help treat conditions affecting specific areas of the digestive system called the pancreas and bile ducts. Patients will consent to allow the study physician to access these areas of the digestive system by making a cut using a technique called a needle-knife fistulotomy. If the physician is unable to gain access through this method, they will make the cut using a technique called a sphincterotomy.