Many people always feel uncomfortable and blocked in the esophagus when swallowing. In this case, it may be because they have been too anxious to eat recently, which may cause such problems in the esophagus. It is also possible that the function of the esophagus is reduced or there is a problem with the function of the blood vessels of a normal person, which can cause blockage of the esophagus. Pathological etiology 1. Swallowing hot food, sharp foreign objects or incompletely chewed bones, accidentally ingesting corrosives, etc. directly damages the esophageal mucosa and causes inflammation. When veterinarians use gastric tubes to administer medication to dogs and cats, rough use of the tubes can often damage the esophageal mucosa. 2. Physical or chemical esophagitis: The esophagitis reaction caused by radiation exposure is called radiation esophagitis. Drugs such as quinidine, tetracycline, potassium chloride, iron supplements, etc. irritate the esophageal mucosa, especially tablets that stagnate in the esophagus, which can also cause esophagitis. Esophagitis caused by overheated food can heal quickly on its own. Frequent use of a gastric tube can irritate the esophagus and cause esophagitis. 3. Using antibiotics for too long can lead to the proliferation of fungi in the esophageal mucosa and cause infection. 4. Decreased function of the lower esophageal sphincter: In normal people, there is a high-pressure area in the lower esophageal sphincter to prevent gastric contents from flowing back into the esophagus. Many reasons can weaken the function of the lower esophageal sphincter, including hiatal hernia, which can easily cause gastric and intestinal contents to reflux into the esophagus and is the main cause of inflammatory lesions of the esophageal mucosa. 5. Increased abdominal pressure: If there is a large amount of ascites or pregnancy, the abdominal pressure will increase, which can easily lead to reflux. 6. Esophageal motility disorder: Normally, when gastric contents reflux into the esophagus, the tension causes secondary peristaltic waves in the esophagus, which send the refluxed contents back into the stomach. Esophagitis can slow down esophageal motility and prolong the time that refluxed materials stay in the esophagus, aggravating the original esophagitis. Esophagitis in turn weakens the function of the lower esophageal sphincter, aggravating reflux, forming a vicious cycle. |
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