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An Immunofluorescent Method for Characterization of Barrett’s Esophagus Cells
Published on: July 20, 2014
ADENOCARCINOMA AND DYSPLASIA IN BARRETT ESOPHAGUS: CRITICAL ANALYSIS OF RISK FACTORS AND SURVEILLANCE PROTOCOLS
Eduardo Gallon1, Sérgio Szachnowicz1, André Fonseca Duarte1
1Universidade de São Paulo, Faculty of Medicine, Department of Gastroenterology - São Paulo (SP), Brazil.
Background:
Identification of epidemiological risk factors in Barrett esophagus resulting in dysplasia and adenocarcinoma and its impact on prevention and early detection.
Aims:
To evaluate epidemiological risk factors involved in the development of dysplasia and esophageal adenocarcinoma from Barrett esophagus in a specific population. To critically analyze the surveillance period, aiming to individualize follow-up time according to identified risks.
Methods:
A retrospective case-control study was carried out at a tertiary center involving patients diagnosed and followed up for Barrett esophagus. Patients who developed esophageal adenocarcinoma and/or dysplasia were compared to those who did not, considering variables such as gender, age, smoking status, body mass index, ethnicity, and Barrett esophagus extension. Logistic regression was performed to measure the odds ratio for risk factors associated with the outcome of adenocarcinoma and dysplasia. The presence of epidemiological risk factors in this population was correlated with the time taken to develop esophageal adenocarcinoma from metaplasia.
Results:
A statistically significant difference was observed in smoking status, race, gender, Barrett esophagus extension, and age between the group with esophageal adenocarcinoma and the group without it. Smokers and former smokers had a 4.309 times higher risk of developing esophageal adenocarcinoma, and each additional centimeter of Barrett esophagus increased the risk by 1.193 times. In the dysplasia group, smoking status, Barrett esophagus extension, and age were statistically significant factors; each additional centimeter of Barrett esophagus extension increased the risk of dysplasia by 1.128 times, and each additional year of age increased the risk by 1.023 times. Patients without risk factors did not develop esophageal adenocarcinoma within 12 months, even with prior dysplasia.
Conclusions:
The study confirmed a higher risk of developing dysplasia and esophageal adenocarcinoma in specific epidemiological groups, allowing for more cost-effective monitorization for patients with Barrett esophagus.
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