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EUS-guided hepaticojejunostomy with transjejunal per-oral cholangioscopy and electrohydraulic lithotripsy in a patient with complicated choledocholithiasis after Roux-en-Y gastric bypass
Obesity and rapid weight loss after bariatric surgery are established risk factors for gallstone disease. Especially after Roux-en-Y gastric bypass (RYGB), conventional ERCP is rarely successful in patients with symptomatic choledocholithiasis.
The success rate can be increased up to 70% by enteroscopy-assisted ERCP; however, this procedure is cumbersome and time-consuming. Percutaneous transhepatic cholangiography with drainage or laparoscopic-assisted ERCP are current alternatives if the endoscopic approach fails. In addition, recent reports have stated that the remnant stomach can be accessed either percutaneously or by EUS-guided stent placement, offering subsequent papillary access.
Here we report the case of a 66-year-old man who was admitted with septic cholangitis due to choledocholithiasis (Fig. 1). He had undergone RYGB with cholecystectomy 8 years earlier because of morbid obesity. Upper endoscopy showed a small gastric pouch with an open gastrojejunostomy (Fig. 2).
Figure 1CT scan showing intrahepatic and extrahepatic bile ducts with an obstructing stone in the distal common bile duct (CBD).
EUS revealed dilated intrahepatic bile ducts (Fig. 3), and the gastric remnant could not be visualized. To relieve cholestasis, EUS-guided biliary drainage connecting hepatic segment III with the Roux-en-Y limb was performed by the insertion of a self-expanding covered metal stent (SEMS) (Fig. 4).
Figure 3EUS view confirming dilated intrahepatic bile ducts.
Three weeks later, after maturation of the hepaticojejunostomy, a transjejunal cholangioscopy was performed by advancing a spyscope through the SEMS. A 2-cm biliary stone was identified in the mid–common bile duct and was fragmented by electrohydraulic lithotripsy (EHL). A second stone was found in the prepapillary region, distal to the first stone. EHL was successfully repeated in the same fashion.
Finally, the papilla was cannulated, and a guidewire was passed into the duodenum. The papilla was dilated to 10 mm, and a 10F 15-cm double-pigtail stent was inserted, extracting the SEMS during the same process (Video 1, available online at www.VideoGIE.org). Six weeks later, during follow-up endoscopy, injection of contrast material into the biliary system showed a completely cleared common bile duct (Fig. 5). Even repeated cholangioscopy could not reveal any residual stone fragments (Fig. 6). The patient remains well; no further endoscopy is planned.
Figure 5Cholangiographic view 6 weeks after transjejunal cholangioscopy with electrohydraulic lithotripsy, confirming stone-free biliary system.
Transenteric access to the biliary system through the left liver lobe is a novel alternative route in patients with biliary disease, especially in patients with altered anatomy where conventional ERCP is not easily feasible. Given the growing numbers of RYGB patients, this procedure offers an appealing method of treatment compared with percutaneous transhepatic cholangiography with drainage, enteroscopy-assisted ERCP, or a surgical approach. Transenteric per-oral cholangioscopy in combination with EHL appears to be safe and effective, but long-term data are definitely warranted.
Disclosure
All authors disclosed no financial relationships relevant to this publication.
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