Rare forms of colitis.
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Biomedical subjects
Publications and source records attributed to W Höchter.
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In a prospective study of 132 cases of gastroduodenal ulcer, proven by endoscopic biopsy, there were 59 in which fungi were cultered (44.7%). There was no significant difference in incidence between gastric ulcer (46.2%) and duodenal ulcer (42.6%), or between benign and malignant gastric ulcer (47.2 and 42.1%, respectively). Most of the fungi were yeasts of the genus Candida and Torulopsis. The mycel phase was demonstrable only in the native or histological preparation (16.7% [native] and 10.6% [histological] positive findings). In all those cases in which pseudomycels were demonstrated the culture count was especially high (more than 20 colonies). In most of these there was an additional disease which may be associated with immunological insufficiency (e.g. diabetes, chronic alcoholism, malignoma). The presence of pseudomycelia or more than 20 colonies in the culture from gastroduodenal ulcers are thus less of a pointer as to whether the local lesion is benign or malignant than to a general weakening of the organism's defence mechanisms.
Collagenous colitis, reported four times until now, is characterised histologically by subepithelial tape-like collagen deposits in the rectum and colon. On endoscopy the mucosa appears normal or slightly oedematous. The main symptom is chronic watery diarrhoea without admixture of blood. The cause of diarrhoea is thought to be defective absorption of electrolytes in the colon as a consequence of the pathological collagen deposition. Using endoscopic, histological and electron microscopic findings two further cases of so-called collagenous colitis could be detected. In one of the two female patients chronic watery diarrhoea occurred connected time-wise with the administration of an H2 receptor antagonist. In addition, a clearly increased pancreatic polypeptide (PP) in serum was demonstrated without proof of an endocrinologically active (pancreatic) tumour.
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Biliary duct ascariasis is a known complication of intestinal ascaris infestation. Treatment up to now was predominantly surgically. In a 32-year-old female Turk with a history of two years of colicky upper abdominal pains and intermittent cholestasis endoscopic transpapillary extraction of Ascaris lumbricoides in the hepatocholedochal duct was successfully performed using the Dormia basket. Pre-extraction papillotomy was not necessary.
In this randomized, multicenter trial, we evaluated the effectiveness and side effect profile of a modified omeprazole-based triple therapy to cure Helicobacter pylori infection. The control group consisted of patients treated with standard dual therapy comprising omeprazole and amoxicillin. One hundred and fifty-seven H. pylori infected patients with duodenal ulcers were randomly assigned to receive either a combination of omeprazole 10 mg, clarithromycin 250 mg and metronidazole 400 mg (OCM) given three times daily for 10 days (n = 81), or a combination of omeprazole 20 mg and amoxicillin 1 g (OA) given twice daily for 14 days (n = 76). Prior to treatment and after 2 and 6 weeks, gastric biopsies from the antrum and corpus were obtained for histology and H. pylori culture. H. pylori infection was cured in 97.4% after OCM and in 65.8% after OA in the per-protocol analysis (p < 0.001) (intention-to-treat analysis: 93.4% and 63.2%, respectively). H. pylori was successfully cultured in 122 patients (77%). The overall rate of metronidazole resistance was 19.7% (24/122), no primary resistance to clarithromycin or amoxicillin was found. In the OCM group, all patients infected with metronidazole-sensitive H. pylori strains (n = 51) and those infected with strains of unknown susceptibility to metronidazole (n = 14) were cured (100%), while 77% (10/13) of those harboring metronidazole-resistant strains were cured of the infection (p = 0.36). Side effects leading to premature termination of treatment occurred in 2.5% of the patients in the OCM group and in 1.4% of the OA group. We conclude that combined treatment with omeprazole, clarithromycin and a higher dose of metronidazole is highly effective in curing H. pylori infection, and that this regimen remains very effective in the presence of metronidazole-resistant strains.