Reducing MRCP Utilization Through a "Surgery First" Approach for Pediatric Choledocholithiasis: A CARES Working Group Retrospective Study.
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BACKGROUND: Choledocholithiasis in children is rising and frequently managed with an endoscopy-first (EF) approach that utilizes endoscopic retrograde cholangiopancreatography (ERCP) followed by laparoscopic cholecystectomy (LC). Magnetic resonance cholangiopancreatography (MRCP) is a resource intensive modality that often precedes ERCP to gain further assurance of choledocholithiasis prior to intervention. MRCP can lead to a longer length of stay (LOS) and strain healthcare resources. We hypothesized that the use of MRCP is decreased with a surgery-first (SF) approach. METHODS: The Choledocholithiasis Alliance for Research, Education, and Surgery (CARES) Working Group conducted this retrospective study on pediatric patients with suspected choledocholithiasis. SF patients underwent LC + intraoperative cholangiogram (IOC) ± laparoscopic common bile duct exploration (LCBDE). Imaging studies included ultrasound (US), MRCP, and computed tomography (CT). RESULTS: From seven institutions, 357 pediatric patients were identified. The SF (n = 220) group received fewer imaging studies then EF (n = 137) (1.29 vs. 1.62; p < 0.05). US was more commonly employed and the number of US and CT scans was similar. The SF group had lower MRCP utilization than EF (29% vs. 59%; p < 0.05). EF patients that received an MRCP had the longest LOS (4.0 d [2.4, 6.3]) compared to SF that did not (1.9 d [1.2, 3.2]) (p < 0.05). CONCLUSION: Children with choledocholithiasis managed with an EF approach receive more diagnostic imaging, especially MRCP. While MRCP remains a powerful diagnostic tool, a surgery-first approach can minimize the resource utilization and LOS associated with magnetic resonance imaging. LEVEL OF EVIDENCE: Level III.
