Variation in age at cancer diagnosis in familial versus nonfamilial Barrett's esophagus.

Background: Genetic influences may be discerned in families that have multiple affected members and may manifest as an earlier age of cancer diagnosis. In this study, we determine whether cancers develop at an earlier age in multiplex Familial Barrett's Esophagus (FBE) kindreds, defined by 3 or more members affected by Barrett's esophagus (BE) or esophageal adenocarcinoma (EAC).

Methods: Information on BE/EAC risk factors and family history was collected from probands at eight tertiary care academic hospitals.

A segregation analysis of Barrett's esophagus and associated adenocarcinomas.

Familial aggregation of esophageal adenocarcinomas, esophagogastric junction adenocarcinomas, and their precursor Barrett's esophagus (BE) has been termed familial BE (FBE). Numerous studies documenting increased familial risk for these diseases raise the hypothesis that there may be an inherited susceptibility to the development of BE and its associated cancers. In this study, using segregation analysis for a binary trait as implemented in S.

Assessment of familiality, obesity, and other risk factors for early age of cancer diagnosis in adenocarcinomas of the esophagus and gastroesophageal junction.

Objectives: Adenocarcinomas of the esophagus and adenocarcinomas of the gastroesophageal junction are postulated to be complex genetic diseases. Combined influences of environmental factors and genetic susceptibility likely influence the age at which these cancers develop. The aim of this study was to determine whether familiality and other recognized risk factors are associated with the development of these cancers at an earlier age.

The association between selected risk factors for pancreatic cancer and the expression of p53 and K-ras codon 12 mutations.

Background: Pancreatic cancer is a major contributor to cancer mortality. Studies suggest that a few risk factors, including cigarette smoking, body mass index, having a relative with pancreatic cancer, and diabetes may be related to pancreatic cancer risk.

Aim Of The Study: We conducted a case-control study in southeastern Michigan to examine the relation between the above mentioned risk factors and mutations of the K-ras oncogene and p53 tumor suppressor gene.

Ultrathin esophagoscopy in screening for Barrett's esophagus at a Veterans Administration Hospital: easy access does not lead to referrals.

Objective: Unsedated, ultrathin esophagoscopy has been shown to be tolerable, safe, and accurate. Survey data have suggested that accessibility of unsedated esophagoscopy would increase referrals for Barrett's esophagus (BE) screening. Our purpose was to evaluate primary-care physician referrals for BE screening when unsedated esophagoscopy is made available.

Consortium approach to identifying genes for Barrett's esophagus and esophageal adenocarcinoma.

Consortium approaches are becoming increasingly more common for a variety of chronic diseases and conditions. The Familial Barrett's Esophagus Consortium began in 1998 and was originally designed to investigate the evidence for familial aggregation of Barrett's esophagus, esophageal adenocarcinoma, or esophagogastric junctional adenocarcinoma. The authors have shown that this phenotype does in fact aggregate in families; therefore, linkage analyses are currently underway.

Risk of other cancers in individuals with a family history of pancreas cancer.

Background: Inherited predisposition to pancreas cancer accounts for approximately 10% of cases. Familial aggregation may be influenced by shared environmental factors and shared genes. We evaluate whether a family history of pancreas cancer is a risk factor for ten specified cancers in first-degree relatives: bladder, breast, colon, head and neck, lung, lymphoma, melanoma, ovary, pancreas, and prostate.

Gastroesophageal reflux symptoms in patients with adenocarcinoma of the esophagus or cardia.

Background: The efficacy of endoscopic screening for chronic gastroesophageal reflux symptoms of heartburn and regurgitation in adult subjects depends on the sensitivity of this strategy for detecting Barrett esophagus in subjects before the development of adenocarcinoma of the esophagus or cardia. The aim of the current study was to determine what proportion of patients with cancer of the esophagus or cardia would have been candidates for a screening endoscopy before their cancer diagnosis based on the presence and duration of preceding reflux symptoms.

Methods: All patients with adenocarcinoma of the esophagus, adenocarcinoma of the cardia, or long-segment Barrett esophagus presenting for endoscopy at 4 tertiary care and 2 Veterans Affairs (VA) hospitals were given a previously validated questionnaire to determine their recall of common gastroesophageal reflux symptoms.

Familiality in Barrett's esophagus, adenocarcinoma of the esophagus, and adenocarcinoma of the gastroesophageal junction.

Background And Aim: The familial aggregation of Barrett's esophagus, adenocarcinoma of the esophagus, and adenocarcinoma of the gastroesophageal junction, jointly termed familial Barrett's esophagus, may represent a complex genetic trait. The aim of this study was to determine the proportion of patients with these diseases who have familial Barrett's esophagus.

Methods: Information on gastroesophageal reflux symptoms, known risk factors for Barrett's esophagus, and family history of Barrett's esophagus and cancers, was collected at six hospitals using a structured questionnaire from probands with either long-segment Barrett's esophagus, adenocarcinoma of the esophagus, or adenocarcinoma of the gastroesophageal junction.

The association of body mass index and pancreatic cancer in residents of southeastern Michigan, 1996-1999.

Increased body mass index has emerged as a potential risk factor for pancreatic cancer. The authors examined whether the association between body mass index and pancreatic cancer was modified by gender, smoking, and diabetes in residents of southeastern Michigan, 1996-1999. A total of 231 patients with newly diagnosed adenocarcinoma of the exocrine pancreas were compared with 388 general population controls.

Identification of Barrett's esophagus in relatives by endoscopic screening.

Aim: Familial aggregation of Barrett's esophagus and its associated cancers has been termed familial Barrett's esophagus (FBE). The aim of the study was to determine whether endoscopic screening would identify Barrett's esophagus (BE) in relatives of probands with BE or esophageal adenocarcinoma (EAC).

Methods: All living first-degree relatives of patients with long segment BE or EAC presenting to the endoscopy suite of two academic hospitals were sent validated questionnaires inquiring about gastroesophageal reflux symptoms and prior endoscopic evaluation.

Criteria for the diagnosis of dysplasia by endoscopic optical coherence tomography.

Background: Endoscopic optical coherence tomography provides images of the GI mucosa and submucosa in microscopic detail. It is unknown whether endoscopic optical coherence tomography can reliably detect dysplasia. Colon polyps were used as a model to determine whether dysplasia in GI tissue has characteristic optical coherence tomography imaging features.

Endoscopic retrograde cholangiopancreatography in children and adolescents.

Objectives: Endoscopic retrograde cholangiopancreatography (ERCP) is becoming a more frequently used diagnostic and therapeutic tool in children. We sought to determine the indications, feasibility, safety, and effect on patient management of ERCP in pediatric patients of varying age.

Methods: All ERCPs performed during a 4-year period in patients aged 18 years or less at an academic hospital were retrospectively reviewed.