Gastroscopy or gastroscopy, why is it performed and what are its complications?


In many cases, the doctor may request a gastroscopy for any reason, either as a diagnostic procedure or as a treatment procedure. Learn about the reasons for performing a gastroscopy, its complications , and everything that interests you about it in this article.


What is a gastroscopy?

It is a procedure in which a thin, flexible tube called an endoscope is used that is inserted from the mouth through the throat and esophagus to reach the stomach and up to the duodenum, and the tube contains at its inner end an illuminated camera with which the doctor can look inside the path in which the endoscope walks in order to be able to photograph the esophagus, stomach and duodenum .

When should a stomach laparoscopy be performed?

There are several reasons for a doctor requesting a gastroscopy, including:

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How the gastroscopy works

Here's how to prepare for a gastroscopy, how it is done, and what you can expect after having a gastroscopy:

Preparation stage

  • You must stop eating and drinking for 6 hours before the operation.
  • You should tell your doctor if you are allergic to any kind of medicine, substances or foods, and you should also tell him if you are taking blood-thinning medicines such as warfarin , or if you have any valve disease or if you have a pacemaker.
  • On the day of the operation, it is recommended that you wear comfortable and loose-fitting clothes.

The stage of the endoscopy procedure

The doctor may spray a local anesthetic in the throat to numb it, and the stomach is usually endoscopy using narcotic drugs injected into a vein , if you have any sensitivity to anesthesia, you must inform your doctor during the examination.

The doctor inserts the endoscope from the mouth and then passes it to the esophagus to reach the stomach and from there to the duodenum, and this procedure usually takes 10 to 15 minutes, and patients are usually discharged from the hospital on the same day if there are no complications.

Post gastroscopy

Because most gastroscopy is performed under the sedative effect of narcotic drugs, you may experience some confusion after the operation, so some things are not recommended in this case immediately after you are discharged from the hospital:

  • Not to drive for 24 hours after the operation.
  • Do not engage in any strenuous physical activities.
  • Do not operate any machinery that may be dangerous to your health.

Is gastroscopy painful?

It is normal to feel some pain and discomfort in the throat as a result of the endoscope rubbing against the throat wall while inserting it, especially after the effect of the anesthetic wears off and this is normal, but if you feel severe pain or the pain extends to other parts, you must contact the doctor.


Eating after gastroscopy

It is normal to feel hungry and thirsty after the endoscopy, because you have stopped eating or drinking for about 7 hours, but you should not eat or drink anything until after you feel completely comfortable and the possibility of swallowing easily, and because of the feeling of numbness in the throat as a result of the anesthetic it is possible You are not able to eat until an hour after the endoscopy has passed, after that you can start drinking water and liquids, after that and for 24 – 48 hours the doctor will advise you to eat small and light meals that contain soft foods such as soups, juices, soft eggs and pudding, and within a few days you will be able to return to eating foods Regular food.

Also read: What is a colonoscopy and why is it used?

Gastroscopy complications

Gastroscopy is a safe procedure, but the doctor must explain to you some of the risks that can occur as side effects or complications during or after the procedure, including:


If the endoscopy aims to take a sample or biopsy from the stomach, this may lead to a little bleeding and the bleeding is supposed to stop on its own after a short period, but if it continues, then you must go to the hospital to deal with it.

Sore throat

This symptom is very common after a gastroscopy, which may last for a few days, but if the pain becomes very severe and extends to the stomach or chest, then you should contact the hospital or go to the emergency room.

Catching an infection

Infection can occur during any type of operation inside the hospital. Refer to the doctor if you experience a fever, chills, or any other symptoms of illness.

Chest infection

The patient may inhale some secretions that come out from the throat as a result of anesthesia and reach the respiratory tract, causing an infection in the respiratory system. Here, a nursing or assistant staff will suction any secretions before they reach the airway during the endoscopy.


Sensitivity to the drug

Some people may have an allergic reaction to the anesthetic used, this is more common in heart patients and those suffering from lung problems, and they have an increase in heart rate or high blood pressure, but do not worry about that, as the nursing staff monitors vital signs during the procedure To intervene quickly when needed.

Read also: What is a capsule endoscopy for the digestive system and what is it used for?

Hole or tear in the path of the endoscope

There is a small chance that the endoscope will cause a hole or cut in the wall of the esophagus, stomach, or duodenum, and surgical intervention may be required to repair this hole or tear.

Finally, you should know that the gastroscopy procedure has become a very common and routine procedure despite its potential risks, so you must choose well the place where you will perform the gastroscopy in order to ensure the efficiency of the workers, the cleanliness and the quality of the place, and if you have any questions, you can consult one of our doctors from Here .

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