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The Effect of Helicobacter pylori Eradication on the Metachronous Neoplasm after Endoscopic Resection for Gastric Dysplasia / 대한소화기학회지
The Korean Journal of Gastroenterology ; : 27-32, 2017.
Article in Korean | WPRIM | ID: wpr-10156
ABSTRACT
BACKGROUND/

AIMS:

Helicobacter pylori (Hp) infection is an important risk factor for gastric carcinogenesis. Although several studies have investigated the effect of Hp eradication on the development of metachronous neoplasm after endoscopic resection of the gastric dysplasia, the evidence is still insufficient to make a clear conclusion. The aims of this study was to evaluate the risk factors for the development of metachronous neoplasm after endoscopic resection of gastric dysplasia and to investigate the effect of Hp eradication.

METHODS:

Between 2005 and 2011, a total of 887 patients underwent endoscopic resection for gastric dysplasia. Among them, 521 patients who had undergone tests for Hp infection and been followed-up for at least one year were included in the final analyses. Of the 292 Hp-positive patients, 116 patients were successfully eradicated, while 176 failed or did not undergo eradication.

RESULTS:

During a mean follow-up of 59.1 months (range 12–125 months), metachronous neoplasm had developed in 63 patients (12.1%, dysplasia in 38, carcinoma in 25). In multivariate analyses, age ≥65 (hazard ratio [HR]=2.247, 95% confidence interval [CI] 1.297–3.895), tumor size (HR=1.283, 95% CI 1.038–1.585), synchronous lesion (HR=2.341, 95% CI 1.244–4.405), family history of gastric cancer (HR=3.240, 95% CI 1.776–5.912), and smoking (HR=1.016, 95% CI 1.003–1.029) were risk factors for metachronous neoplasm after endoscopic resection of gastric dysplasia. However, Hp eradication was not associated with metachronous neoplasm (HR=0.641, 95% CI 0.297–1.384).

CONCLUSIONS:

Hp eradication was not shown to be associated with the development of metachronous cancer after endoscopic resection of gastric dysplasia.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Precancerous Conditions / Smoke / Stomach Neoplasms / Smoking / Multivariate Analysis / Risk Factors / Follow-Up Studies / Helicobacter pylori / Neoplasms, Second Primary / Helicobacter Type of study: Etiology study / Observational study / Prognostic study / Risk factors Limits: Humans Language: Korean Journal: The Korean Journal of Gastroenterology Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Precancerous Conditions / Smoke / Stomach Neoplasms / Smoking / Multivariate Analysis / Risk Factors / Follow-Up Studies / Helicobacter pylori / Neoplasms, Second Primary / Helicobacter Type of study: Etiology study / Observational study / Prognostic study / Risk factors Limits: Humans Language: Korean Journal: The Korean Journal of Gastroenterology Year: 2017 Type: Article