I. Indications.
1, with gastrointestinal symptoms, considering esophageal, gastric and duodenal ulcers, inflammation and tumors.
2, gastrointestinal bleeding with unknown etiology and bleeding site.
3, other imaging examinations reveal lesions in the upper gastrointestinal tract that require a clear nature.
4, people at high risk of upper gastrointestinal tumors, or pre-cancerous lesions and pre-cancerous disease screening.
5.Evaluate the effect of ulcer and H. pylori treatment.
Second, contraindications are divided into relative contraindications and decision contraindications.
1.Relative contraindications.
(1) cardiopulmonary insufficiency.
(2) Gastrointestinal bleeding and fluctuating or unstable blood pressure.
(3) Severe hypertensive patients with high blood pressure.
(4) Severe bleeding tendency with hemoglobin below 50 g/L or PT prolongation of more than 1.5 seconds.
(5) High spinal deformity.
(6) Giant diverticulum of the digestive tract.
Absolute contraindications.
(1) Severe cardiopulmonary disorders that cannot tolerate endoscopy;
(2) Patients in critical condition such as suspected shock or perforation of the gastrointestinal tract;
(3) Psychiatric disorders that cannot cooperate with endoscopy;
(4) Patients with acute inflammation of the gastrointestinal tract, especially corrosive inflammation;
(5) Apparent thoracoabdominal aortic aneurysm;
(6) Patients with stroke.