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Background: Bariatric surgery (BSx) is one of the most common surgical procedures in North America. Readmissions may be associated with a high burden to the healthcare system., Methods: Retrospective study of the 2016 National Readmission Database of adult patients readmitted within 30 days after an index admission for BSx. Outcomes were: 30-day readmission rate, mortality, healthcare-related utilization resources, and independent predictors of readmission. Comparison groups were index admission, readmitted, and non-readmitted patients., Results: A total of 161,141 patients underwent BSx. The 30-day readmission rate was 3.3%. Main causes for readmission were dehydration, acute kidney injury, venous thromboembolism events, and sepsis. Readmitted patients were more likely to develop shock (0.5% vs. 0.1%; P < 0.01) with no differences in mechanical ventilation (1.9% vs. 2.0%; P = 0.83) during index admission compared to non-readmitted patients. Readmission was associated with higher in-hospital mortality rate (1.5% vs. 0.1%; P < 0.01) and prolonged length of stay (4.6 vs. 2.4 days; P < 0.01). The total in-hospital economic burden of readmission was $234 million in total charges and $58.7 million in total costs. Independent predictors of readmission were: Charlson comorbidity index of ≥ 3, longer length of stay, admission to larger bed size hospitals, discharge to nursing home, and acute kidney injury. Medicaid, private insurance, BMI of 30-39 kg/m 2 , and 40-44 kg/m 2 were associated with lower odds for readmission., Conclusion: Readmissions after BSx are associated with higher in-hospital mortality rate and pose a high healthcare burden. We identified risk factors that can be targeted to decrease readmissions after BSx, healthcare burden, and patient morbidity and mortality., (© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Background and Aims: Annular pancreas is a rare congenital condition where the second part of the duodenum is encircled by pancreatic tissue. There is a scarcity of data on its natural history therefore, we aimed to evaluate the epidemiology of annular pancreas and identify underlying associations using a large database., Methods: A multi-institutional database (Explorys) was surveyed. A cohort of patients with a Systematized Nomenclature of Medicine-Clinical Terms diagnosis of "MRI, CT, EUS and/or ERCP" between April 2015 and April 2020 was identified. Subsequently a cohort of patients with history of "annular pancreas" was identified., Results: There were a total of 40,075,980 individuals in the database with 6,162,600 (15.38%) who had an magnetic resonance imaging, computed tomography, endoscopic retrograde cholangiopancreatography, and/or endoscopic ultrasound. There were 210 (3.4/100,000) had a diagnosis of annular pancreas. When compared with the control group, patients with annular pancreas were more likely to have a history of alcohol use, smoking, acute pancreatitis, chronic pancreatitis, gastritis, duodenitis, jaundice, and gastrointestinal outlet obstruction., Conclusions: This is the largest study evaluating the epidemiology of annular pancreas. We found the estimated prevalence rate of annular pancreas to be 3.4/100,000 in those who had abdominal imaging. Annular pancreas was more likely to be diagnosed in patients with symptoms pertaining to acute or chronic pancreatitis, biliary, and gastric outlet obstruction., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)

Background/objectives: Alcoholic acute pancreatitis (AAP) comprises the second most common cause of acute pancreatitis in the USA, and there is lack of data regarding 30-day specific readmission causes and predictors. We aim to identify 30-day readmission rate, causes, and predictors of readmission., Methods: Retrospective analysis of the 2016 National Readmission Database of adult patients readmitted within 30 days after an index admission for AAP., Results: Totally, 76,609 AAP patients were discharged from the hospital in 2016. The 30-day readmission rate was 12%. The main cause of readmission was another episode of AAP. Readmission was not associated with higher mortality (1.3% vs. 1.2%; P = 0.21) or prolonged length of stay (5.2 vs. 5.0 days; P = 0.06). The total health care economic burden was $354 million in charges and $90 million in costs. Independent predictors of readmission were having Medicaid insurance, a Charlson comorbidity index score ≥ 3, use of total parenteral nutrition, opioid abuse disorder, prior pancreatic cyst, chronic alcoholic pancreatitis, and other chronic pancreatitis. Obesity was associated with lower odds of readmission., Conclusion: Readmission rate for AAP is high and its primary cause are recurrent episodes of AAP. Alcohol and substance abuse pose a high burden on our health care system. Public health strategies should be targeted to provide alcohol abuse disorder rehabilitation and cessation resources to alleviate the burden on readmission, the health care system and to improve patient outcomes., (© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature.)

Objectives: Chronic pancreatitis (CP) is often associated with poor quality of life. Only a few small associative studies have reported the prevalence of mood disorders in CP. Using a large database, we sought to describe the epidemiology and risk association of anxiety and depression in CP and evaluate their outcomes., Methods: A multicenter database (Explorys), an aggregate of electronic health record data from 26 US healthcare systems, was surveyed. A cohort of patients with a diagnosis of CP between 2014 and 2019 was identified. Within this cohort, rates of anxiety and depression were calculated. Demographics, comorbidities, and outcomes were described., Results: Of the 30,276,810 individuals in the database (2014-2019), 67,260 patients had a CP diagnosis (0.22%). When compared with patients with no history of CP, patients with CP were more likely to develop anxiety (odds ratio, 6.94; 95% confidence interval, 6.85-7.04) and depression (odds ratio, 5.09; 95% confidence interval, 5.01-5.17). Chronic pancreatitis patients with depression had an increased risk of suicidal ideation compared with controls., Conclusions: Patients with CP are at a higher risk of developing anxiety and depression compared with those without CP, with overall worse outcomes. Clinicians should screen CP patients and make appropriate referral to psychiatry when indicated., Competing Interests: The authors declare no conflict of interest., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)

Background: Cholangiocarcinoma is an aggressive malignancy with few available studies assessing incidence and mortality. In this study, we aim to investigate trends of incidence and mortality in a large nation-wide epidemiologic study., Methods: We used SEER 18 database to study cholangiocarcinoma cases in the US during 2000-2015. Incidence and mortality rates of cholangiocarcinoma were calculated by race and were expressed by 1,000,000 person-years. Annual percent change (APC) was calculated using joinpoint regression software., Results: We reviewed 16,189 patients with cholangiocarcinoma, of which 64.4% were intrahepatic. Most patients were whites (78.4%), males (51.3%), and older than 65 years (63%). A total of 13,121 patients died of cholangiocarcinoma during the study period. Cholangiocarcinoma incidence and mortality were 11.977 and 10.295 and were both higher among Asians, males, and individuals older than 65 years. Incidence rates have significantly increased over the study period (APC=5.063%, P<.001), while mortality increased significantly over the study period (APC=5.964%, P<.001), but decreased after 2013 (APC=-25.029, P<.001)., Conclusion: The incidence and mortality of cholangiocarcinoma were increasing in the study period with significant observed disparities based on race and gender., (Copyright © 2020 Elsevier Masson SAS. All rights reserved.)

Objectives: A few past studies have found increased utilization of 25-hydroxyvitamin D and prevalence of osteoporosis in acute pancreatitis (AP). Our aim was to obtain a survey of bone diseases after a sentinel episode of AP., Methods: A database (Explorys), an aggregate of electronic health record from 26 integrated United States healthcare systems, was queried. A cohort of patients with a Systematized Nomenclature of Medicine-Clinical Terms diagnosis of AP between 2014 and 2019, after excluding patients with selected medical conditions and medications that are associated with poor bone health, was identified. The prevalence of new diagnoses of vitamin D deficiency (VDD), osteoporosis, and fractures in the study cohort was evaluated. Age-, race-, and sex-based distributions and risk factors were determined through univariate and multivariate analyses., Results: Of the 36,087,380 individuals in the database, we identified 256,580 (0.71%) with AP. In multivariate analysis, patients with AP were more likely to develop VDD (odds ratio [OR], 1.25; 95% confidence interval [CI], 1.24-1.26; P < 0.0001), osteoporosis (OR, 1.89; CI, 1.81-1.85; P < 0.0001), and fractures (OR, 1.58; 95% CI, 1.57-1.59; P < 0.0001)., Conclusions: Acute pancreatitis was associated with increased risk of VDD, osteoporosis, and fractures.

Introduction: Pancreatic Ductal Adenocarcinoma (PDAC) is an uncommon yet fatal malignancy with numerous recent reports detailing a significant increase in the overall incidence lately. However, there is limited literature on recent incidence rates of the disease in young individuals. In this study we evaluate PDAC incidence in the US among young patients., Methods: Data from 2000 to 2017 was obtained from the Surveillance Epidemiology and End Results 'SEER' database and analyzed using the SEER*stat software. The overall incidence, incidence trends, and survival were calculated., Results: We selected 667 PDAC patients who met our inclusion criteria. We found the incidence of PDAC among young individuals to be 1.016 (95% CI, 0.940-1.096) per 1,000,000 person-years. Incidence rates were stable over the study period. Higher incidence was found among males [1.240 (95% CI, 1.122-1.366)] and blacks [1.226 (95% CI, 0.999-1.490)]. The 5-year relative survival of young patients with PDAC was 6.8%., Conclusions: Among young adults, pancreatic cancer incidence has been stable over the study duration. However, disparities between subpopulations exist and further studies are warranted to better understand those observed differences., (Copyright © 2019 Elsevier Masson SAS. All rights reserved.)

Objectives: The aim of this study was to identify the prevalence of cannabis use among all patients admitted with acute pancreatitis (AP) in the United States and to investigate the impact of cannabis use on AP mortality, morbidity, and cost of care., Methods: The National Inpatient Sample database from 2003 to 2013 was queried for all patients with AP and active exposure to cannabis. Outcomes included in-hospital mortality, length of stay, inflation adjusted charges, acute kidney injury, acute respiratory distress syndrome, and shock. Results were adjusted for age, sex, race, Charlson comorbidity index, median income quartile, and hospital characteristics., Results: More than 2.8 million patients with AP patients were analyzed. Cannabis-exposed (CE) patients' prevalence was 0.3%. Patients exposed to cannabis were younger and mostly males compared with non-cannabis-exposed patients. After adjusting for these factors, the CE group had significantly lower inpatient mortality compared with the noncannabis group (odds ratio, 0.17; 95% confidence interval, 0.06-0.53). Cannabis-exposed patients also had decreased length of stay, inflation-adjusted charges, acute kidney injury, ileus, shock, acute respiratory distress syndrome, and parenteral nutrition requirement., Conclusions: Cannabis-exposed hospitalized patients with AP had lower age-adjusted, mortality, morbidity, and hospitalization-cost than non-cannabis-exposed patients.