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Multicenter retrospective study of clinical, endoscopic and pathological characteristics of autoimmune gastritis

Not Applicable
Conditions
Autoimmune gastritis
Registration Number
JPRN-UMIN000033785
Lead Sponsor
Kakogawa Central City Hospital, Department of Gastroenterology
Brief Summary

Repeated incorrect treatments for H. pylori infection due to a false-positive result in 13C-urea breath test, ranked third among the basis for diagnosis of AIG. Associated gastric lesions were type 1 neuroendocrine tumor (11.4%), adenocarcinoma (9.8%). Corpus pan-atrophy was the most common appearance. Remnant oxyntic mucosa was found in 31.5% of the patients. Sticky adherent dense mucus and scattered minute whitish protrusions were observed in approximately 30% of the patients.

Detailed Description

Not available

Recruitment & Eligibility

Status
Complete: follow-up complete
Sex
All
Target Recruitment
245
Inclusion Criteria

Not provided

Exclusion Criteria

The patients who were prescribed proton pomp inhibitor or vonoprazan fumarate and the patients who underwent gastrectomy or had renal failure.

Study & Design

Study Type
Observational
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
1) Endoscopic findings: Kyoto gastritis classification and other findings like remnant oxyntic mucosa, status of antrum, mucous condition. Findings through indigo carmine dying method or NBI magnifying method. 2) Histological findings of each biopsy site, number of biopsies. 3) Blood sample results: titer of anti-parietal cell antibody, existence of anti-intrinsic factor antibody, PG1, PG 2, PG 1/2, RBC, Hb, Ht, MCV, WBC, platelet, VB12, folic acid, Fe, TSH, anti-thyroglobulin antibody, anti-glutamic acid decarboxylase antibody, blood sugar, HbA1C and others presumed to be related AIG. 4) Helicobacter pylori infection associated data :13C-UBT, anti H. pylori IgG antibody and H. pylori stool antigen. 5) Other associated clinical information, if available.
Secondary Outcome Measures
NameTimeMethod
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