Procedures
Upper Endoscopy
Upper endoscopy is a direct look at the esophagus, stomach, and the beginning of the small intestine using a flexible camera. It answers questions that symptoms and imaging cannot.
What the test shows
An upper endoscopy inspects the lining of the esophagus, stomach, and first part of the small intestine directly, with light and magnification. Inflammation, ulceration, narrowing, hiatal hernia, and changes in the esophageal lining are all visible.
It also samples. Biopsies taken during the procedure are what distinguish reflux inflammation from allergic disease, identify Barrett's changes, and confirm or exclude other diagnoses. Appearance alone is suggestive. Pathology is definitive.
Common reasons it is recommended
Reflux that persists despite treatment, difficulty or pain with swallowing, unexplained upper abdominal pain, nausea without a clear cause, anemia, and surveillance of known Barrett's esophagus are among the usual indications.
It is also performed as part of the evaluation before metabolic procedures, because knowing the state of the stomach and esophagus before intervening is basic preparation rather than an extra step.
- Reflux not responding to treatment
- Difficulty or pain when swallowing
- Unexplained upper abdominal pain or nausea
- Surveillance of Barrett's esophagus
- Evaluation before a metabolic or endoscopic procedure
Preparing for it
The stomach must be empty. Fasting instructions are given precisely and are the most common reason a procedure gets postponed when they are not followed.
Medication instructions are individual. Blood thinners, diabetes medications, and GLP-1 medications all require specific guidance, and GLP-1 therapy in particular affects stomach emptying and therefore anesthesia planning. Bring your full medication list, including doses.
Arrange a driver. Sedation makes driving unsafe for the rest of the day, and the procedure will not go ahead without a plan to get home.
During and after
Sedation or anesthesia is given, and most people have no memory of the procedure. The scope passes through the mouth. It does not interfere with breathing. The examination usually takes a modest amount of time unless something is treated during it.
Afterward you recover until the sedation clears, then go home the same day. A sore throat, bloating, and grogginess for the rest of the day are common and settle quickly. Eating resumes according to the instructions given at discharge.
Findings visible at the time are usually discussed the same day. Biopsy results take longer and are reviewed at a follow up rather than left to a voicemail.
When to call after the procedure
Call promptly for severe or worsening chest or abdominal pain, fever, difficulty breathing, vomiting blood, or black stools. Complications are uncommon, and the response to them is prompt evaluation rather than waiting.
This page is educational information, not medical advice. What is right for you is decided in consultation, after a review of your history, your symptoms, and your testing.
Common questions
- Will I be awake?
- Sedation or anesthesia is used, and most people remember nothing of the procedure. You will need someone to drive you home.
- Do biopsies hurt?
- No. The lining of the esophagus and stomach does not register the small samples taken, and you are sedated regardless.
- How soon will I know the results?
- Visible findings are usually discussed the same day. Biopsy results take longer and are reviewed together at follow up.
- Can something be treated during the same procedure?
- Often yes. Dilation of a narrowing and other therapeutic steps can be performed at the same session, depending on findings and on what was planned beforehand.
Related procedures and conditions
Next step
Reflux that keeps coming back deserves a look, not another refill.
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