Gastroenterology
March 2017
Am J Gastroenterol
November 2016
Objectives: Regular use of nonsteroidal anti-inflammatory drugs (NSAIDs) is associated with a reduced risk of esophageal adenocarcinoma. Epidemiological studies examining the association between NSAID use and the risk of the precursor lesion, Barrett's esophagus, have been inconclusive.
Methods: We analyzed pooled individual-level participant data from six case-control studies of Barrett's esophagus in the Barrett's and Esophageal Adenocarcinoma Consortium (BEACON).
Esophageal adenocarcinoma (EAC) is rapidly increasing in incidence in many Western societies, requires demanding treatment, and is associated with a poor prognosis, therefore preventive measures are highly warranted. To assess the opportunities for prevention, we reviewed the available literature and identified seven main potentially preventive targets. Preventive effects were found on the basis of medium-level observational evidence following treatment of gastroesophageal reflux disease (using both medication and surgery) and tobacco smoking cessation, which should be clinically recommended among exposed patients.
View Article and Find Full Text PDFClin Gastroenterol Hepatol
January 2017
Clin Gastroenterol Hepatol
February 2017
Background & Aims: Determining the natural history and predictors of survival in patients with untreated hepatocellular carcinoma (HCC) in the United States is useful to test existing tumor classifications, identify subgroups of patients likely to benefit from treatment, and estimate lead time related to HCC surveillance.
Methods: We identified a national cohort of 518 veterans diagnosed with HCC from 2004 through 2011, with follow-up ending in 2014, who received no palliative or curative treatment. We examined the association between postdiagnosis survival and patient factors, tumor characteristics, and prediagnosis surveillance.
Clin Gastroenterol Hepatol
December 2016
Background & Aims: Cirrhosis related to chronic hepatitis B (CHB) is a major risk factor for hepatocellular carcinoma (HCC). The extent to which HCC occurs in U.S.
View Article and Find Full Text PDFObjectives: Prior studies have demonstrated the efficacy of non-selective beta-blockers (NSBB) in preventing first variceal bleeding in patients with cirrhosis. However, little is known about the overall effectiveness of NSBB in routine clinical care.
Methods: We conducted a retrospective cohort study of cirrhotic patients without prior bleeding who initiated a NSBB (propranolol, nadolol) at any Veterans Administration facility between 2008 and 2013.
Background: Medical comorbidities and functional status limitations are determinants of mortality in many chronic diseases. The extent to which survival in the rapidly aging cohort of patients with HCV is affected by these competing causes of mortality remains unclear.
Aim: We sought to determine the effect of medical/functional comorbidities on survival after adjusting for liver disease severity in a cohort of patients with HCV infection.
Objectives: Irritable bowel syndrome (IBS) affects people across the age spectrum and is highly comorbid with other medical conditions. The aim of this study was to determine the moderating effect of age on the relationship between medical comorbidity and health outcomes in IBS patients.
Methods: Patients (n=384) across the age spectrum (18 to 70) completed questionnaires regarding medical comorbidities, anxiety, depression, IBS symptom severity, and IBS quality of life (QOL).
Background & Aims: The effectiveness of surveillance for hepatocellular carcinoma (HCC) in reducing cancer related mortality among patients with cirrhosis is largely unknown. The objective of this study was to study the effectiveness of HCC surveillance in the national Veterans Administration (VA) clinical practice.
Methods: We conducted a retrospective cohort study of patients with HCC during 2005-2010 by reviewing patients' medical records to determine receipt of HCC surveillance in the 2years prior to HCC diagnosis.
Clin Gastroenterol Hepatol
December 2016
Clin Gastroenterol Hepatol
October 2016
Background & Aims: Gluteofemoral obesity (determined by measurement of subcutaneous fat in the hip and thigh regions) could reduce risks of cardiovascular and diabetic disorders associated with abdominal obesity. We evaluated whether gluteofemoral obesity also reduces the risk of Barrett's esophagus (BE), a premalignant lesion associated with abdominal obesity.
Methods: We collected data from non-Hispanic white participants in 8 studies in the Barrett's and Esophageal Adenocarcinoma Consortium.
Clin Infect Dis
August 2016
Background: Direct acting antiviral agents (DAA) are highly effective yet expensive. Disparities by race and/or gender often exist in the use of costly medical advances as they become available.
Methods: We examined a cohort of hepatitis C virus (HCV) patients who received care at the Veterans Administration facilities nationwide.
Objectives: Receptor for advanced glycation end products (RAGE) expressed on adipocytes and immune cells can bind to ligand N(ε)-(carboxymethyl)-lysine (CML) and trigger dysregulation of adipokines and chronic inflammation. Soluble RAGE (sRAGE) mitigates the detrimental effect of RAGE. We examined the associations between circulating levels of CML-AGE and sRAGE and colorectal cancer (CRC).
View Article and Find Full Text PDFUnlabelled: Preventing readmission has been the focus of numerous quality improvement efforts across many conditions. Early outpatient follow-up has been proposed as the best mechanism for reducing readmissions. The extent to which early outpatient follow-up averts readmission or improves outcomes in cirrhosis is not known.
View Article and Find Full Text PDFBackground: Missed colonoscopy appointments (no-shows) can lead to wasted resources and delays in colorectal cancer diagnosis, an area of special concern in public health systems that often provide care for vulnerable patients. Our objective was to identify reasons for missed colonoscopy appointments in patients seeking care at two large public health systems in Houston, TX.
Methods: We conducted a telephone survey of patients who missed their colonoscopy appointments at two tertiary care health systems.
Unlabelled: The long-term prognosis in terms of risk or predictors of developing hepatocellular carcinoma (HCC) among patients with sustained virological response (SVR) remains unclear. We conducted a retrospective cohort study using data from the Veterans Affairs VA hepatitis C virus (HCV) Clinical Case Registry in patients with positive HCV RNA between October 1999 and August 2009 and follow-up through December 2010. HCV treatment (interferon with or without ribavirin) and SVR (RNA test negative at least 12 weeks after the end of treatment) were determined.
View Article and Find Full Text PDFSurg Obes Relat Dis
January 2017
Background: Obesity is strongly associated with esophageal adenocarcinoma (EAC), yet it is unclear whether weight loss reduces the risk of EAC.
Objectives: To test the hypothesis that the risk of EAC decreases after weight reduction achieved by obesity surgery.
Setting: Nationwide register-based cohort study.
Gastroenterology
February 2016
Background: Cardiovascular disease provides the greatest mortality risk in patients with nonalcoholic fatty liver disease (NAFLD). Clinical practice guidelines recommend statins to treat dyslipidemia in patients with NAFLD; however, the extent to which such patients receive statins has not been studied.
Methods: We conducted a structured medical record review to assess for appropriate statin use in patients in a Veterans Administration facility with dyslipidemia and NAFLD as well as a parallel cohort without NAFLD.
Clin Gastroenterol Hepatol
May 2016
Epidemiologic data regarding coffee and tea consumption and risk of esophageal inflammation, Barrett's esophagus (BE), and adenocarcinoma are sparse and inconclusive. This study examined the association between consumption of tea or coffee with risk of BE. We conducted a cross-sectional study among US veterans, comparing 310 patients with histologically confirmed BE with 1728 individuals with no endoscopic or histopathologic features of BE (controls).
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