Usefulness of Endoscopic Imaging to Visualize Regional Alterations in Acid Secretion of Noncancerous Gastric Mucosa after Helicobacter pylori Eradication
Journal of Gastric Cancer
; : 152-160, 2016.
Article
in English
| WPRIM (Western Pacific)
| ID: wpr-216436
Responsible library:
WPRO
ABSTRACT
PURPOSE:
Endoscopic diagnosis of gastric cancer (GC) that emerges after eradication of Helicobacter pylori may be affected by unique morphological changes. Using comprehensive endoscopic imaging, which can reveal biological alterations in gastric mucosa after eradication, previous studies demonstrated that Congo red chromoendoscopy (CRE) might clearly show an acid non-secretory area (ANA) with malignant potential, while autofluorescence imaging (AFI) without drug injection or dyeing may achieve early detection or prediction of GC. We aimed to determine whether AFI might be an alternative to CRE for identification of high-risk areas of gastric carcinogenesis after eradication. MATERIALS ANDMETHODS:
We included 27 sequential patients with metachronous GC detected during endoscopic surveillance for a mean of 82.8 months after curative endoscopic resection for primary GC and eradication. After their H. pylori infection status was evaluated by clinical interviews and ¹³C-urea breath tests, the consistency in the extension of corpus atrophy (e.g., open-type or closed-type atrophy) between AFI and CRE was investigated as a primary endpoint.RESULTS:
Inconsistencies in atrophic extension between AFI and CRE were observed in 6 of 27 patients, although CRE revealed all GC cases in the ANA. Interobserver and intraobserver agreements in the evaluation of atrophic extension by AFI were significantly less than those for CRE.CONCLUSIONS:
We demonstrated that AFI findings might be less reliable for the evaluation of gastric mucosa with malignant potential after eradication than CRE findings. Therefore, special attention should be paid when we clinically evaluate AFI findings of background gastric mucosa after eradication (University Hospital Medical Information Network Center registration number UMIN000020849).
Full text:
Available
Health context:
SDG3 - Target 3.4 Reduce premature mortality due to noncommunicable diseases
Health problem:
Digestive System Diseases
/
Stomach Cancer
Database:
WPRIM (Western Pacific)
Main subject:
Atrophy
/
Stomach Neoplasms
/
Breath Tests
/
Helicobacter pylori
/
Helicobacter
/
Congo Red
/
Diagnosis
/
Digestive System
/
Endoscopy
/
Optical Imaging
Type of study:
Diagnostic study
/
Prognostic study
/
Screening study
Limits:
Humans
Language:
English
Journal:
Journal of Gastric Cancer
Year:
2016
Document type:
Article