An endoscopy is a minimally invasive procedure commonly used to diagnose digestive issues such as acid reflux, ulcers, or stomach pain. The procedure involves the use of an endoscope, a tube-shaped device with a camera, which allows doctors to view the inside of the digestive tract.
“Endoscopy is a safe procedure,” said Dr. Sunil Dacha, an interventional gastroenterologist at Houston Methodist. “In rare cases, a person may have chest discomfort from the procedure, but what’s actually more likely is a sore throat afterward.”
During an upper endoscopy, the endoscope is passed through the esophagus, stomach, and into the upper part of the small intestine. The process helps doctors capture images and videos to diagnose and treat various conditions.
Mild chest discomfort following an endoscopy is generally not considered serious, but patients are advised to discuss any symptoms with their doctor. Recognizing the difference between normal post-procedure symptoms and those that may indicate a complication is important.
Dr. Dacha identified five common causes for chest discomfort after an upper endoscopy:
1. Throat or esophageal irritation: The passage of the endoscope can cause mild irritation or inflammation, which may result in chest discomfort. “To help relieve throat discomfort, try gargling with warm water. There are also spray solutions available to numb the throat,” said Dr. Dacha. “The soreness should go away within a few days.”
2. Air or gas retention: Air introduced during the procedure can become trapped, leading to temporary bloating or chest pressure. Dr. Dacha recommended, “Drink fluids and eat soft or bland foods for the first 24 hours after your procedure. You should also avoid carbonated drinks or heavy meals until you feel better.”
3. Esophageal spasms or cramping: Soreness from the procedure can lead to temporary pain or muscle spasms similar to heartburn. “This is common after an upper endoscopy. Talk with your doctor about whether taking OTC medication such as liquid acetaminophen may be appropriate for you,” Dr. Dacha added.
4. Minor mucosal injury: Some patients may experience minor inflammation in or around the mouth, which usually heals quickly. “These are typically minor and heal quickly. To help the healing process, avoid salty and acidic foods and follow all instructions from your care team,” said Dr. Dacha.
5. Anxiety or sedation side effects: Light sedation used during the procedure, as well as stress related to the procedure itself, can contribute to mild chest discomfort. “If your pain is intense or is associated with fever, chills, tightness of chest, sweating or something unusual, seek medical care right away,” Dr. Dacha emphasized. “Although the endoscopy is performed in a controlled setting, there is a small chance of complications.”
While most cases of chest pain after an endoscopy resolve within a few days, certain symptoms could signal more serious issues such as aspiration of fluids, esophageal perforation, or infection. Warning signs include chest pain that feels like pressure, pain lasting more than 48 hours, fever, chills, difficulty breathing or swallowing, nausea or vomiting (especially if there is blood), and black or bloody stool.
“You should start to feel better within a few days of an upper endoscopy if you have mild symptoms. When in doubt, contact your care team. We are here to help you get better, so you can get back to your regular activities,” said Dr. Dacha.
