Related Experiment Video
Updated: Oct 4, 2026

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
Published on: February 16, 2024
[Populational research of gastric cancer in digestive symptomatic patients, from 1996 to 2000]
A Calvo Belmar1, M Pruyas, E Nilsen
1Unidad de Endoscopia, Centro de Referencia de Salud San Rafael, La Florida, Santiago, Chile. acalvob@entelchile.net
Background:
Gastric cancer is the first cause of death due to malignant tumors in Chile. Its mortality rates have stabilized in the last two decades and its prognosis is closely associated to the degree of tumor invasion at the moment of surgery.
Aim:
To study the frequency of gastric cancer among symptomatic patients subjected to an upper gastrointestinal endoscopy at a secondary care health center.
Patients And Methods:
All upper gastrointestinal endoscopies performed to patients derived from public primary care clinics were recorded.
Results:
In the study period, 4,145 endoscopies were done to 818 men and 2,128 women. Seventy one percent of patients were aged over 40 years of age. Fifty one carcinomas and one lymphoma were detected. Of these, 10 tumors were incipient. Thirty one patients were operated on and in 22 a total gastrectomy was performed. One patient, that required an esophageal resection, died.
Conclusions:
Gastric cancer was detected in 1.2% of symptomatic adult patients subjected to an upper gastrointestinal endoscopy.
Related Concept Videos
Assessment of the Gastrointestinal System I: Subjective Data
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems related to...
Gastritis II: Pathophysiology
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Gastritis III: Clinical Manifestations and Management
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
Pyloric Obstruction
