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World J Gastrointest Surg. Nov 30, 2009; 1(1): 59-61
Published online Nov 30, 2009. doi: 10.4240/wjgs.v1.i1.59
Peroral cholangioscopy-assisted guidewire placement for removal of impacted stones in the cystic duct remnant
Mansour A Parsi, Center for Endoscopy and Pancreatobiliary Disorders, Digestive Disease Institute, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, United States
Author contributions: Parsi MA contributed entirely to this case report.
Correspondence to: Mansour A Parsi, MD, Center for Endoscopy and Pancreatobiliary Disorders, Digestive Disease Institute, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, United States. firstname.lastname@example.org
Telephone: +1-216-4454880 Fax: +1-216-4446284
Received: May 27, 2009
Revised: July 19, 2009
Accepted: July 26, 2009
Published online: November 30, 2009
Choledocholithiasis is a common condition[1-5]. Most bile duct stones can be effectively removed by endoscopic retrograde cholangiopancreatography (ERCP). In the vast majority of cases, this is achieved after placement of a guidewire which is then used to guide instruments such as lithotripsy baskets or extraction balloons. Occasionally, when a stone is impacted, placement of a guidewire in the desired location cannot be accomplished, and more invasive procedures such as transhepatic access or surgery may become necessary. In this report, we describe a new technique for successful guidewire placement for subsequent treatment and removal of impacted stones after failed placement by conventional means.
A 64 year-old-man with a remote history of cholecystectomy was referred for ERCP for treatment of choledocholithiasis. The cholangiogram showed stones in the common hepatic duct and the cystic duct remnant (Figure 1). The common hepatic duct stones were easily removed after placement of a guidewire in the common hepatic duct followed by biliary sphincterotomy and balloon extraction. Removal of the stones in the cystic duct, however, proved to be much more challenging. One of the cystic duct stones was impacted at the insertion of the cystic duct to the common bile duct, preventing passage of a guidewire (Jagwire, Boston Scientific, Natick, MA; Figure 1). An extraction balloon which was already in place was inflated and the insertion point of the cystic duct was probed with the guidewire while changing the orientation and the degree of inflation of the balloon. The guidewire still would not pass. The balloon was then positioned close to the stone, inflated and slightly pulled down towards the ampulla to straighten and stretch the bile duct while probing with the guidewire was continued. However, this technique also failed to provide access to the cystic duct. The balloon was then exchanged with a rotatable sphincterotome (Autotome Rx, Boston Scientific, Natick, MA). This sphincterotome has a rotating handle which is designed to change the tip orientation to facilitate cannulation. Probing with the guidewire through the sphincterotome at different tip orientations also failed. The guidewire was then exchanged for an angled tip hydrophilic guidewire (Hydra Jagwire, Boston Scientific, Natick, MA) and the sequence described above was repeated without success. After failing to traverse the stone by conventional means, a cholangioscope (SpyGlass Direct Visualization System, Boston Scientific, Natick, MA) was introduced into the bile duct. Through the accessory channel of the cholangioscope, under direct visualization and using low volume saline irrigation, a hydrophilic guidewire was manipulated past the impacted stone and placed in the cystic duct remnant (Figure 2). The cholangioscope was then removed and the stones were extracted using a basket passed over the guidewire (Figure 3).
Figure 1 Fluoroscopic image obtained during ERCP showing filling defects (stones) in the common hepatic duct and cystic duct remnant.
Figure 2 A guidewire is placed in the cystic duct remnant under direct cholangioscopic guidance.
Figure 3 A guidewire is coiled in the cystic duct remnant.
A basket passed over the guidewire is holding a large radiolucent (cholesterol) stone for removal.
Gallstone disease or cholelithiasis continues to be a major health problem throughout the world, affecting approximately 10%-20% of the Caucasian population. In addition, 15%-20% of patients with gallstone disease also have stones in their biliary ductal system (choledocholithiasis). Stones in the biliary ductal system have to be removed because of their potential to cause cholangitis and pancreatitis[6,9,10]. ERCP with biliary sphincterotomy and stone extraction are well-established therapeutic procedures for the treatment of gallstones. Appropriate guidewire placement is a requirement in most ERCP procedures that are performed for gallstone extraction. In most cases, guidewire placement is accomplished easily. In some cases, however, it can represent a time-consuming challenge. Multiple instruments have been developed and several techniques have been described to help with guidewire placement during ERCP. Despite use of different equipment and innovative techniques, a guidewire sometimes can not be placed in the desired location and a more invasive procedure may become necessary.
Recently, a new single-operator cholangioscopy system became available (SpyGlass Direct Visualization System, Boston Scientific, Natick, MA, USA)[11,12]. This system, which consists of re-useable and single use components, allows direct visualization of the biliary tree by a single endoscopist. Its other advantages are a 4-way tip deflection, which allows better access and maneuverability, and 2 dedicated irrigation channels allowing better visualization of intraductal pathology. I and my colleagues have previously reported our experience with this system in the treatment of difficult to remove biliary stones, evaluation of indeterminate biliary strictures, investigation of “idiopathic” recurrent acute pancreatitis and treatment of anastomotic strictures in liver transplant patients. This study reports the experience of using this device for removal of impacted stones in the cystic duct remnant. Most symptomatic patients with calculi in the cystic duct remnant undergo laparoscopic re-operation for stone management[17-19]. In this case, this peroral cholangioscopy system was used to place a guidewire in the cystic duct remnant under direct visualization after a failed attempt during ERCP, with subsequent removal of an impacted calculus. This innovative technique allows surgery to be avoided in selected cases.
Peer reviewers: Dr. Jean L Frossard, Division of Gastroenterology, Geneva University Hospital, Rue Micheli du Crest, 1211 Geneva 14, Switzerland; Beata Jolanta Jablońska, MD, PhD, Department of Digestive Tract Surgery, University Hospital of the Medical University of Silesia, Medyków 14 St. 40-752 Katowice, Poland
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