Background & Aims Gastrointestinal (GI), liver, and pancreatic diseases are a source of substantial morbidity, mortality, and cost in the United States (US). Quantification and statistical analyses of the burden of these diseases are important for researchers, clinicians, policy makers, and public health professionals. We gathered data from national databases to estimate the burden and cost of GI and liver disease in the US. Methods We collected statistics on healthcare utilization in the ambulatory and inpatient setting along with data on cancers and mortality from 2007 through 2012. We included trends in utilization and charges. The most recent data were obtained from the Centers for Disease Control and Prevention, the Agency for Healthcare Research and Quality, and the National Cancer Institute. Results There were 7 million diagnoses of gastroesophageal reflux and almost 4 million diagnoses of hemorrhoids in the ambulatory setting in a year. Functional and motility disorders resulted in nearly 1 million emergency department visits in 2012; most of these visits were for constipation. GI hemorrhage was the most common diagnosis leading to hospitalization, with more than 500,000 discharges in 2012 at a cost of nearly $5 billion dollars. Hospitalizations and associated charges for inflammatory bowel disease, Clostridium difficile infection, and chronic liver disease have increased over the last 20 years. In 2011, there were more than 1 million people in the US living with colorectal cancer. The leading GI cause of death was colorectal cancer, followed by pancreatic and hepatobiliary neoplasms. Conclusions GI and liver diseases are a source of substantial burden and cost in the US.

Summary Because of global epidemics of obesity and type 2 diabetes, the prevalence of non-alcoholic fatty liver disease (NAFLD) is increasing both in Europe and the United States, becoming one of the most frequent causes of chronic liver disease and predictably, one of the leading causes of liver transplantation both for end-stage liver disease and hepatocellular carcinoma. For most transplant teams around the world this will raise many challenges in terms of preand post-transplant management. Here we review the multifaceted impact of NAFLD on liver transplantation and will discuss: (1) NAFLD as a frequent cause of cryptogenic cirrhosis, end-stage chronic liver disease, and hepatocellular carcinoma; (2) prevalence of NAFLD as an indication for liver transplantation both in Europe and the United States; (3) the impact of NAFLD on the donor pool; (4) the access of NAFLD patients to liver transplantation and their management on the waiting list in regard to metabolic, renal and vascular comorbidities; (5) the prevalence and consequences of post-transplant metabolic syndrome, recurrent and de novo NAFLD; (6) the alternative management and therapeutic options to improve the long-term outcomes with particular emphasis on the correction and control of metabolic comorbidities.

Barrett’s esophagus (BE) is a common condition, and is the precursor to esophageal adenocarcinoma, a disease with increasing burden in the western world, especially in Caucasian males. The incidence of BE increased dramatically during the late-20th century and incidence estimates continue to increase, with a prominent male:female ratio. The prevalence is between 0.5 – 2.0 percent. A number of anthropomorphic and behavioral risk factors exist for BE including obesity and tobacco smoking, but GERD is the strongest risk factor, and the risk is more pronounced with long-standing GERD. Esophageal adenocarcinoma (EAC) is the most common form of esophageal cancer in the U.S. Risk factors include GERD, tobacco smoking, and obesity, while NSAIDs and statins may be protective. A major factor predicting progression from non-dysplastic BE to EAC is the presence of dysplastic changes seen on esophageal histology, although a number of issues limit the utility of dysplasia as a marker for disease. Length of the involved BE segment is another risk for progression to high-grade dysplasia and cancer. Biomarkers have shown promise, but none are approved for clinical use.

Background & Aims Colonic diverticula are the most common finding from colonoscopy examinations. Little is known about the distribution of colonic diverticula, which are responsible for symptomatic and costly diverticular disease. We aimed to assess the number, location, and characteristics of colonic diverticula in a large US screening population. Methods We analyzed data from a prospective study of 624 patients (mean age, 54 years) undergoing screening colonoscopy at the University of North Carolina Hospital from 2013 through 2015. The examination included a detailed assessment of colonic diverticula. To assess the association between participant characteristics and diverticula, we used logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs). Results Of our population, 260 patients (42%) had one or more diverticula (mean number 14; range, 1–158). Participants with diverticula were more likely to be older, male, and have a higher body mass index than those without diverticula. The distribution of diverticula differed significantly by race. Among Whites, 75% of diverticula were in the sigmoid colon, 11% in the descending splenic flexure, 6% in the transverse colon, and 8% were in the ascending colon or hepatic flexure; in Blacks 64% of diverticula were in the sigmoid colon, 8% in the descending colon or splenic flexure, 7% in the transverse colon, and 20% in the ascending colon or hepatic flexure (P=.0008). The proportion of patients with diverticula increased with age: 35% were 50 years or younger, 40% were 51–60 years, and 58% were older than 60 years. The proportion of patients with more than 10 diverticula increased with age: 8% were 50 years or younger, 15% were 51–60 years, and 30% were older than 60 years. Conclusions Older individuals not only have a higher prevalence of diverticula than younger individuals, but also a greater density, indicating that this is a progressive disease. Blacks have a greater percentage of their diverticula in the proximal colon and fewer in the distal colon compared with Whites. Understanding the distribution and determinants of diverticula is the first step in preventing diverticulosis and its complications.

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