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The 30-day hospital readmission rate is a nationally recognized quality measure. Nearly one-fifth of medicare beneficiaries are hospitalized within 30 days of discharge, resulting in a cost of over $26 billion dollars annually. Endoscopic retrograde cholangiopancreatography (ERCP) remains the endoscopic procedure with the highest risk of morbidity and mortality. We set out to analyze the clinical characteristics predictive of 30-day readmission after an inpatient ERCP. We performed a retrospective chart review of all inpatient ERCPs performed at our institution between 12/1/2014 and 9/30/2018. Clinical characteristics and outcomes of these patients were compared to determine predictors of 30-day readmission. A total of 497 inpatient ERCP procedures done for biliary or pancreatic indications, constituting 483 patients, were identified. There were 52 readmissions that occurred among 48 patients within 30 days of discharge. Basic demographic characteristics were similar between both groups. Comorbidities were significantly higher in those who were readmitted. Multivariate analysis revealed significantly greater odds of readmission with prior liver transplantation (OR = 4.15), cirrhosis (OR = 3.20), and pancreatic duct stent placement (OR = 2.56). Subgroup analysis for biliary indications revealed cholecystectomy before discharge and early ERCP to be protective against readmission. A history of liver transplantation and cirrhosis are predictive of increased 30-day readmission rates after an inpatient ERCP. Pancreatic duct stent placement is associated with readmission; however, this phenomenon is likely related to stenting for pancreatic endotherapy. Cholecystectomy before discharge and early ERCP are predictive of decreased need for readmission in procedures done for biliary indications.

Introduction: Autoimmune Hepatitis (AIH) is a rare liver injury known to cause approximately 13% of acute liver failure cases in the United States. Drug-induced AIH has similar clinical, serological and histological features of AIH but is less likely to require long term immunosuppression or to relapse after discontinuation of immunosuppressants. It is mostly associated with nitrofurantoin, minocycline, hydralazine, and methyldopa, however other medications may be culprits. Herein, we present a patient with drug-induced AIH with possible relation to Pfizer-BioNTech COVID-19 vaccine. Case Description/Methods: A 38-year-old female with a history of Helicobacter pylori treated with amoxicillin and pantoprazole three months ago and recent COVID-19 vaccination presented with two weeks of right upper quadrant pain and diarrhea. Patient received second dose of vaccination two weeks prior to symptom onset. Five days post-symptom onset, she developed a pruritic rash with vomiting and yellowing of her skin. Physical examination was notable for normal mentation, scleral icterus, jaundice, and a maculopapular rash. Initial blood workup showed international normalized ratio 2.4, alkaline phosphatase 212 U/L, ALT 3769 U/L, AST 1572 U/L and total bilirubin of 23.8 mg/ dL. Viral hepatitis serologies, chronic liver disease workup and autoimmune serologies were normal. Imaging demonstrated no intra- or extra-hepatic biliary ductal dilation. Liver biopsy showed portal inflammation with interface activity, diffuse lobular inflammation, and perivenulitis with abundant lymphocytes and plasma cells consistent with seronegative AIH or drug induced AIH. The patient developed altered mental status meeting the criteria of acute liver failure, she was started on corticosteroids as well as supportive care with resolution of encephalopathy and was discharged home on prednisone. Discussion: Several etiologies of drug-induced AIH are well-established, however cases secondary to COVID-19 vaccination have been minimally reported. Common adverse events for COVID-19 vaccination have been noted such as fever, chills, fatigue, headache, and muscle pain. Several rare side effects have occurred including immune thrombocytopenia and one other suspected case of Pfizer- BioNTech COVID-19 vaccination-induced AIH reported in the literature. In that case the patient developed symptoms within one week of the first dose. This case serves to report a potential association and not necessarily causation between the Pfizer-BioNTech COVID-19 vaccination and AIH.

Recently, the American Cancer Society made a qualified recommendation to start colorectal cancer (CRC) screening at 45 years of age in all average-risk individuals. In this study, our primary aim is to calculate the prevalence and also evaluate the predictors of increased prevalence of detected adenomas in the 40–49-year-old individuals undergoing colonoscopy. A retrospective cross-sectional study was performed using our endoscopy database. Study subjects included all 40–49-year-old patients undergoing their first colonoscopy at our institution from January 1, 2010 to September 30, 2017. Exclusion criteria included patients who underwent colonoscopy for overt gastrointestinal bleeding, inflammatory bowel disease, a history of familial adenomatous polyposis, hereditary non-polyposis CRC. Univariate analysis and multivariate analysis were performed to identify factors associated with increased adenoma detection rate (ADR). A total of 2059 patients were included in the study, and 317 of these patients had family history (FH) of CRC. Patients with FH of CRC had significantly higher ADR (27.8% vs. 19.7%, p = 0.001) as compared to those without FH of CRC. There was no significant difference in ADR in patients between 40–44 years and 45–49 years of age (17.7% vs. 21.4%, p = 0.058). On a multivariate analysis while adjusting for multiple patient and procedural variables, FH of CRC, male sex, BMI > 30 kg/m2, chronic kidney disease, and age were associated with high ADR. Our study shows that in addition to FH of CRC, age, male sex, BMI, and CKD are independent predictors of increased ADR in patients between 40 and 49 years of age.

Background: Recently the American Cancer Society made a qualified recommendation to start screening for colorectal cancer (CRC) at 45 years of age in all average risk individuals. In this study, our primary aim is to calculate the prevalence and also evaluate the predictors of increased prevalence of detected adenomas in the 40 to 49-year-old individuals undergoing colonoscopy. Methods: A retrospective cross sectional study was performed using our electronic endoscopy database. Study subjects included all 40 to 49-year-old patients undergoing their first colonoscopy at our institution from January 1, 2010 to September 30, 2017. Exclusion criteria included patients who underwent colonoscopy for overt gastrointestinal bleeding, inflammatory bowel disease, a history of familial adenomatous polyposis, hereditary non polyposis CRC. Univariate analysis and multivariate analysis was performed to identify factors associated with increased adenoma detection rate (ADR). Findings: A total of 2059 patients were included in the study and 317 of these patients had family history (FH) of CRC. Patients with FH of CRC had significantly higher ADR (27.8% versus 19.7%, p=0.001) as compared to those without family history of CRC. There was no significant difference in ADR in patients between 40-44-years versus 45-49-years of age (17.7% vs 21.4%, p=0.058). On a multivariate analysis while adjusting for multiple patient and procedural variables; FH of CRC, male gender, BMI > 30 kg/m2, chronic kidney disease, and age were associated with high ADR. Interpretation: Our study shows that in addition to FH of CRC, age, male gender, BMI, and CKD are independent predictors of increased ADR in patients between 40 to 49 years of age. Funding Statement: The authors state: " No funding sources to be declared." Declaration of Interests: The authors report no conflicts of interest. Ethics Approval Statement: The study protocol was approved by the institutional review board (IRB) at the University of Texas Medical Branch, Galveston, TX.