Related Experiment Video
Updated: May 14, 2026

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
Published on: February 16, 2024
[Clinic pathogenetic features of gastroduodenal erosions and ulcers in patients with unstable stenocardia]
Objective:
To reveal the clinical, morphological and pathogenic features of gastroduodenal erosions and ulcers in unstable angina.
Methods:
135 patients with unstable angina were examined and divided into 2 groups, depending on the presence of a pathological process in the gastroduodenal zone. The state of microcirculation in the tissues of the gastroduodenal zone, secretory and motor function of the stomach were estimated by complex of techniques, adapted to the severity of the patients.
Results:
It is found that the pathological process in the gastroduodenal zone in patients with unstable angina was presented primarily by acute erosions, less - acute ulcers or recurrent peptic ulcer disease. In this case, the leading symptom of acute erosions was dyspepsia, that as a rule prevailed over the indistinct abdominal pain, and often disappeared in the first few days of treatment. Clinical picture of acute ulcers was determined by gastric dyspepsia and was often combined with abdominal pain and symptoms of gastrointestinal bleeding. The recurrence of peptic ulcer disease was characterized by the combination of moderate abdominal pain, often with migration in retrosternal and cardiac area and loss of circadian rhythm inherent in anthro-duodenal ulcer localization, and dyspeptic disorders. The severity of symptoms of ulcerous process was gradually decreased with time, but in most patients, they had remained by the end of the 2nd week of treatment. The basis of development of erosions and ulcers in unstable angina were the focal mainly thrombohaemorrhagic disorders of the terminal blood flow in the gastroduodenal mucosa. Its were combined with changes in the functional state of the stomach, manifested with an increase activity of acid-peptic factor, reduced production of gastromucoproteins, hypomotor dyskinesia and discoordination of anthro-duodenal propulsion on the hypotonic type.
Conclusion:
Erosive and ulcerative lesions of gastroduodenal zone in unstable angina have a number of clinical and pathogenetic features that should be considered in the process of diagnosis and treatment.
Related Concept Videos
Gastritis-II: Pathophysiology
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
Pathophysiology of Peptic Ulcer Disease: Injurious Factors
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds to M3...
Peptic Ulcer Disease II: Pathophysiology
Peptic Ulcer Disease II: Pathophysiology
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.
Peptic Ulcer
Peptic Ulcer Disease III: Clinical Manifestations and Complications
