[The characteristics of gastroduodenal pathology in patients with chronic opisthorchiasis as a criterion for the clinical diagnosis of the invasion]. / Osobennosti gastroduodenal'noi patologii u bol'nykh khronicheskim opistorkhozom kak kriterii klinicheskoi diagnostiki invazii.

Using a syndrome approach the clinical pattern has been studied in 269 patients with chronic gastritis and duodenitis. 55 of patients had gastric ulcer, 105 patients had duodenal ulcer. In 130 patients chronic opisthorchiasis was diagnosed 8.9 +/- 1.9 years after the disease onset. The following syndromes are believed to be diagnostically valuable, enabling one to suspect chronic opisthorchiasis in patients with gastroduodenal pathology from the endemic foci: "low eosinophilia syndrome", "right hypochondrium" syndrome, "fever and enterocolitic syndrome" with the special consideration of the nature of dysbacteriosis of the small bowel.

[The pathogenesis of stomach and duodenal involvement in chronic opisthorchiasis. 1. The urease test]. / Patogenez porazheniia zheludka i dvenadtsatiperstnoi kishki pri khronicheskom opistorkhoze. 1. Ureaznyi test.

The study using the urease test on mucous biopsies from the antral gastric part and from the duodenum of patients with chronic opisthorchiasis with endoscopic evidence of antral gastritis and gastroduodenitis, and from noninvaded patients with gastritis and duodenitis, some of them with the gastric or duodenal ulcers showed that the test was positive. The test was negative in both groups of patients when the mucosa of the gastric body was examined as well as in those without gastroduodenal pathology. It is supposed that in the both groups of patients gastroduodenal pathology was provoked by the colonization of the gastric and duodenal mucosa by gastric campylobacteria.