OBJECTIVES:Endoscopic retrograde cholangiopancreatography (ERCP) performed on the weekend requires significant effort from the endoscopist, nursing staff, and anesthesia services. These factors often result in delaying the procedure until the following Monday. No data exist on whether performing weekend ERCP reduces length of stay (LOS) and total cost to justify the additional physician and nursing burden.METHODS:In this single tertiary academic center, institutional review board-approved study, we retrospectively reviewed all hospitalized patients in whom an ERCP had been completed from May 2010 to September 2011. Demographic and clinical information, procedure details as well as total hospitalization charges (USD) were compared between patients who had an ERCP either on the weekend or weekday holiday (WE ERCP) or Monday (MON ERCP). Statistical comparisons were made using χ 2 and Fischer's exact test. A logistic regression model adjusted for propensity scores (PSs) was used to estimate the risk in prolonged LOS and high total charges associated with WE ERCPs vs. MON ERCPs.RESULTS:A total of 1,114 ERCP's were performed during the time period, 123 of which met inclusion criteria (52 WE, 71 MON). Mean patient age was 56.3±16.7 years (54.5% female, 60.2% Caucasian). There were no significant demographic differences between the two groups. The most common procedure indications were choledocholithiasis (34.9%) and elevated liver enzymes after liver transplantation (25.2%). The analysis showed a significantly decreased LOS (P=0.010) and a trend towards decreased cost (P=0.050) associated with WE ERCP. In the multivariate analysis adjusted for PS, WE ERCP had a significantly decreased odds ratio of LOS>3 days (odds ratio: 0.37 (0.16-0.85); P=0.019).CONCLUSIONS:We demonstrated a significant decrease in LOS and a trend towards decrease in charges in patients who underwent weekend ERCP compared with delaying ERCP until Monday. Thus, health-care organizations should consider removing barriers to weekend inpatient ERCPs.
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