What Is the Connection Between Stress and Indigestion?
The time for food to pass through the intestine is normal, and the pressure in the small intestine is normal and stable.
- Intestinal tract test is a method to measure irritable bowel syndrome through practical measurement and pressure measurement.
- Name
- Intestinal transit time measurement and pressure measurement
- category
- Special inspection
Intestinal transit time measurement and pressure measurement normal values
- The time for food to pass through the intestine is normal, and the pressure in the small intestine is normal and stable.
Clinical significance of intestinal transit time and pressure measurement
- Abnormal results: food passes through the intestine for a long or short time, and the pressure in the small intestine is high, which is irritable bowel syndrome. People to be checked: Irritable bowel syndrome
Precautions for intestinal transit time measurement and pressure measurement
- Not suitable for inspection: Radionuclide-sensitive patients are contraindicated before the test: anticholinergics, calcium channel blockers, nitroglycerin sedatives, and psychotropic drugs should be stopped 48 hours before the test. Contraindications during the examination: (1) If taking lactulose on an empty stomach, for different patients, the phase of the digestive period is different at the time, resulting in uneven oral-blind transit time results, so lactulose should be taken at the same time as the test meal . (2) The composition of the trial meal must be similar to that of a regular diet. (3) Pay attention to moderate intubation.
Intestinal transit time measurement and pressure measurement examination process
- I. Intestinal transit time check: (1) Hydrogen respiration test: The principle is that sugars that cannot be absorbed in the small intestine, such as lactulose, release hydrogen through bacterial fermentation in the colon and exhale through the lungs. Therefore, a certain period of time is required after taking lactulose (10-15min) Collect exhaled hydrogen and measure the exhaled hydrogen concentration by gas chromatograph according to the exhaled gas. The change in hydrogen concentration is calculated as the mouth-blind transit time. The peak value is when the respiratory hydrogen concentration is higher than 50% of the basic value or higher than the level of 4-10 ppm, from the time of oral lactulose to the peak value. (2) Radionuclide scanning method: Small intestine transit time measurement: 99mTC is usually used to mark the meals and meals after the meal is counted under the gamma camera (nuclide scanning before and after position to correct errors). If two radionuclides are used for labeling One is for gastric emptying, and the other is for measuring the mouth-blind transit time, from which the small intestine transit time is calculated. Measurement of colonic transit time: Radionuclide-labeled liquids are poured into the cecum or orally positioned in the cecum, and the disintegrated radionuclide capsules are used to measure the colonic filling and the passage time of each segment. Second, pressure measurement: small intestine pressure measurement: the pressure collection tube or a catheter with a miniature pressure sensor is inserted through the stomach into the duodenum to the upper part of the jejunum (the guide wire under the X-ray can be inserted through the endoscope), which can be measured Small bowel digestive interphase and digestive dynamics (number of contractions, contraction range and dynamic index).
Intestinal transit time and stress related diseases
- Pediatric dynamic intestinal obstruction, Pediatric functional dyspepsia, Irritable bowel syndrome, Intestinal polyposis, Intestinal vascular malformation, Gastrointestinal cancer metastasis to the ovary
Intestinal transit time and stress related symptoms
- Gastrointestinal dysfunction, gastrointestinal flatulence, intestinal dysfunction, gastrointestinal emptying performance, increased intestinal absorption of water, decreased intestinal tension