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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Decreasing mortality from acute biliary diseases that require endoscopic retrograde cholangiopancreatography: a nationwide cohort study.
Clinical Gastroenterology and Hepatology 2014 July
BACKGROUND & AIMS: The management of acute biliary diseases often involves endoscopic retrograde cholangiopancreatography (ERCP), but it is not clear whether this technique reduces mortality. We investigated whether mortality from acute biliary diseases that require ERCP has been reduced over time and explored factors associated with mortality.
METHODS: We conducted a cohort study using the Nationwide Inpatient Sample (1998-2008). We identified hospitalizations for choledocholithiasis, cholangitis, and acute pancreatitis that involved ERCP. Multivariate analyses were used to determine the effects of time period, patient factors, hospital characteristics, features of the ERCP procedure, and types of cholecystectomies on mortality, length of stay, and costs.
RESULTS: From 1998 to 2008 there were 166,438 admissions for acute biliary conditions that met the inclusion criteria, corresponding to more than 800,000 patients nationwide. During this interval, mortality decreased from 1.1% to 0.6% (adjusted odds ratio [aOR], 0.7; 95% confidence interval [CI], 0.6-0.8), diagnostic ERCPs decreased from 28.8% to 10.0%, hospitals performing fewer than 100 ERCPs per year decreased from 38.4% to 26.9%, open cholecystectomies decreased from 12.4% to 5.8%, and unsuccessful ERCPs decreased from 6.3% to 3.2% (P < .0001 for all trends). Unsuccessful ERCP (aOR, 1.7; 95% CI, 1.4-2.2), open cholecystectomy (aOR, 3.4; 95% CI 2.7-4.3), cholangitis (aOR, 1.9; 95% CI, 1.5-2.3), older age, having Medicare health insurance, and comorbidity were associated with increased mortality.
CONCLUSIONS: In-hospital mortality from acute biliary conditions requiring ERCP in the United States has decreased over time. Reductions in the rate of unsuccessful ERCPs and open cholecystectomies are associated with this trend.
METHODS: We conducted a cohort study using the Nationwide Inpatient Sample (1998-2008). We identified hospitalizations for choledocholithiasis, cholangitis, and acute pancreatitis that involved ERCP. Multivariate analyses were used to determine the effects of time period, patient factors, hospital characteristics, features of the ERCP procedure, and types of cholecystectomies on mortality, length of stay, and costs.
RESULTS: From 1998 to 2008 there were 166,438 admissions for acute biliary conditions that met the inclusion criteria, corresponding to more than 800,000 patients nationwide. During this interval, mortality decreased from 1.1% to 0.6% (adjusted odds ratio [aOR], 0.7; 95% confidence interval [CI], 0.6-0.8), diagnostic ERCPs decreased from 28.8% to 10.0%, hospitals performing fewer than 100 ERCPs per year decreased from 38.4% to 26.9%, open cholecystectomies decreased from 12.4% to 5.8%, and unsuccessful ERCPs decreased from 6.3% to 3.2% (P < .0001 for all trends). Unsuccessful ERCP (aOR, 1.7; 95% CI, 1.4-2.2), open cholecystectomy (aOR, 3.4; 95% CI 2.7-4.3), cholangitis (aOR, 1.9; 95% CI, 1.5-2.3), older age, having Medicare health insurance, and comorbidity were associated with increased mortality.
CONCLUSIONS: In-hospital mortality from acute biliary conditions requiring ERCP in the United States has decreased over time. Reductions in the rate of unsuccessful ERCPs and open cholecystectomies are associated with this trend.
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