Evolving techniques for endoscopic retrograde cholangiopancreatography in gastric bypass patients

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Abstract

Purpose of review

The present review describes the current and evolving techniques available in approaching endoscopic retrograde cholangiopancreatography (ERCP) for patients with Roux-en-Y gastric bypass (RYGB) anatomy.

Recent findings

Recent studies have demonstrated that device-assisted enteroscopy (DAE) approaches have high failures rates when performing ERCP, but are currently considered the first-line approach for patients with RYGB anatomy because of lower costs and risks compared to surgery. In contrast, laparoscopicy-assisted-ERCP (LA-ERCP) exhibits high technical success rates but carries surgical risks and requires a high degree of scheduling coordination. A novel, completely endoscopic approach called endoscopic ultrasound directed transgastric ERCP (EDGE), also known as gastric access temporary for endoscopy (GATE), has in recent years shown high ERCP success rates comparable to LA-ERCPs while obviating the need for surgical assistance.

Summary

ERCP is technically difficult in patients with RYGB anatomy. Numerous approaches to ERCP exist, although availability of these techniques may be limited and depend on institutional expertise. The best initial approach should be considered based on patient history and institutional factors.

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