The difference between esophagoscopy and gastroscopy, the focus of examination is different

Both esophagoscopy and gastroscopy are used to examine diseases of the digestive system. The difference between the two is that the focus of the examination is different. Gastroscopy examines lesions in the stomach. Before the examination, you should learn more about some precautions.

1. The difference between esophagoscopy and gastroscopy

Esophagoscopy and gastroscopy are both common methods for examining digestive system diseases. The difference between the two is that they focus on different aspects of the examination, and thus the results of the examinations also vary in certain systems. Typically, esophagoscopy is used to focus on examining the physiological and pathological changes of the side walls of the esophagus, while intragastric examination of the gastric mucosa requires the use of a gastroscope to better achieve the purpose of the examination. Therefore, although both are devices for diagnosing and examining systemic diseases, there are also significant differences between them. Due to differences in the patient's physical condition and other aspects, the examination can be based on the specific condition, and both can also be examined at the same time.

2. Precautions for gastroscopy

During a gastroscopy, in order to clearly see the mucous membrane of the digestive tract, the area being examined must be very clean, with no food or blood clots remaining. If you have a gastroscopy in the morning, do not eat or drink, and do not smoke after 8 pm the night before the examination. Eat food with less residue and easy to digest for dinner the day before. Because even if the patient drinks a small amount of water, the color of the gastric mucosa can change. For example, in the case of significant atrophic gastritis, the gastric mucosa can turn red after drinking water, which can lead to errors in diagnosis. If the gastroscopy is performed in the afternoon, the patient can drink some sugar water before 8 am that day, but cannot eat anything else and must not eat at noon. Such as patients with pyloric obstruction. Gastric lavage must be performed the night before the examination, and the gastric contents must be thoroughly washed out until the flushing fluid is clear. After gastric lavage and before the gastric tube is removed, the patient should lie in a supine position with his head low and feet high to allow the remaining fluid in the stomach to be completely discharged. Gastric lavage should not be performed on the same day because it can change the color of the gastric mucosa. If a barium meal examination has been done, the barium may be attached to the gastrointestinal mucosa, especially the site of ulcer lesions, making fiber gastroscopy diagnosis difficult. Therefore, gastroscopy must be performed 3 days after the barium meal examination.

At the same time, in order to reduce saliva secretion, reduce reflexes and reduce tension, inject 0.5 mg of atropine and 10 mg of diazepam or 0.1 g of luminal 15 to 30 minutes before the examination, and drink 2 to 3 ml of defoaming agent after the injection.