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Percutaneous transhepatic cholangiography for choledocholithiasis after laparoscopic gastric bypass surgery.
INTRODUCTION: Gallstones are a common condition in bariatric patients after a laparoscopic Roux-en-Y gastric bypass (LRYGB). The management of ductal stones is challenging due to the altered gastrointestinal anatomy. Various techniques have been reported to manage bile duct stones.
PRESENTATION OF CASE: We present the successful percutaneous trans hepatic management of common bile duct stones after LRYGB. One year after a LRYGB for morbid obesity, a 59-year-old female presented with acute cholecystitis. One month after laparoscopic cholecystectomy a 1cm calculus was found within the distal CBD and patient underwent a percutaneous trans hepatic cholangiography under local anesthetic. This involved a right sided anterior segmental duct puncture. With the sphincter dilated to 10mm, a balloon catheter was used to push the stone into the duodenum leaving an internal- external drain. Patient recovered completely at follow up.
DISCUSSION: Patients with morbid obesity have a higher incidence of gallstones. After LRYGB, the altered anatomy does not allow the conventional endoscopic retrograde cholangiopancreatography (ERCP) for choledocholithiasis. Various techniques have been reported as means of managing bile duct stones in LRYGB patients. These include a double balloon enteroscope-assisted ERCP, laparoscopic transgastric ERCP, laparoscopic or open biliary surgery and interventional radiology. We report a non-surgical approach using percutaneous transhepatic technique under local anesthetic that resulted effective and could be applied more extensively.
CONCLUSION: Due to the increase of global obesity, bariatric centers need to strategically plan resources such as interventional radiology in order to manage post LRYGB choledocholithiasis safely, efficiently and in a cost effective manner.
PRESENTATION OF CASE: We present the successful percutaneous trans hepatic management of common bile duct stones after LRYGB. One year after a LRYGB for morbid obesity, a 59-year-old female presented with acute cholecystitis. One month after laparoscopic cholecystectomy a 1cm calculus was found within the distal CBD and patient underwent a percutaneous trans hepatic cholangiography under local anesthetic. This involved a right sided anterior segmental duct puncture. With the sphincter dilated to 10mm, a balloon catheter was used to push the stone into the duodenum leaving an internal- external drain. Patient recovered completely at follow up.
DISCUSSION: Patients with morbid obesity have a higher incidence of gallstones. After LRYGB, the altered anatomy does not allow the conventional endoscopic retrograde cholangiopancreatography (ERCP) for choledocholithiasis. Various techniques have been reported as means of managing bile duct stones in LRYGB patients. These include a double balloon enteroscope-assisted ERCP, laparoscopic transgastric ERCP, laparoscopic or open biliary surgery and interventional radiology. We report a non-surgical approach using percutaneous transhepatic technique under local anesthetic that resulted effective and could be applied more extensively.
CONCLUSION: Due to the increase of global obesity, bariatric centers need to strategically plan resources such as interventional radiology in order to manage post LRYGB choledocholithiasis safely, efficiently and in a cost effective manner.
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