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  • 1
    ISSN: 1523-5378
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background. Helicobacter pylori infection has been one of the most common infectious diseases in the world, whereas a gold standard for identifying its infection has not yet been established. The specific test will depend on the particular clinical, epidemiological, and scientific requirements. We recently developed a new type of rapid test to detect H. pylori antibody excreted into urine; the test requires only 20 minutes. The purpose of this study was to examine the accuracy of this rapid test.Methods. The performance of the rapid test was compared with those of a histological search through Giemsa staining and of an assay for detecting antibodies in serum by a commercially available ELISA kit. The patients, totaling 117 (male, 62, female, 55; average age, 51.6 years), included those with peptic ulcer endoscopically diagnosed and excluded cases that were subjected to eradication therapy in the past.Results. With respect to the determinations of H. pylori identified by the microscopical test and the serum antibody assay, our kit had a sensitivity of 92.0% and a specificity of 93.1%, and the agreement of determination of H. pylori infection was as high as 91.5% and 92.3%, respectively.Conclusions. The rapid test for antibodies to H. pylori in urine could detect H. pylori infection easily, rapidly, and noninvasively and would be useful in general practice for screening patients with dyspeptic symptoms.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1530-0358
    Keywords: Early rectal carcinoma ; Lymph node metastasis ; Endoscopic treatment ; Quality of life
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract PURPOSE: This study was undertaken to clarify the indications for endoscopic treatment. METHODS: Clinical and pathologic features of 191 lesions in 180 patients with early rectal carcinoma were examined, including 110 intramucosal carcinomas and 81 carcinomas with submucosal invasion (submucosal carcinomas). All lesions had been endoscopically or surgically resected at the National Cancer Center Hospital between 1976 and 1990. RESULTS: Metastasis to regional lymph nodes (LN metastasis) was seen in 0 percent (0/39) of intramucosal carcinomas and 9.2 percent (6/65) of submucosal carcinomas in the surgically treated patients. The incidence of LN metastasis was higher for lesions larger than 10 mm in diameter, for those showing massive submucosal invasion, and for moderately differentiated adenocarcinomas. LN metastases were associated significantly with lymphatic invasion. CONCLUSIONS: These results suggest that early rectal carcinomas should be resected surgically if they 1) show massive submucosal invasion, 2) are classified as moderately differentiated adenocarcinomas, and 3) are larger than 10 mm in diameter. In patients with both scanty submucosal invasion and features of well-differentiated adenocarcinoma or intramucosal carcinoma and if no other risk factors for LN metastasis are present, such as lymphatic invasion by the primary lesion, surveillance may suffice after endoscopic resection.
    Type of Medium: Electronic Resource
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