Upper endoscopy (OGD)


An upper endoscopy, also known as oesophagogastroduodenoscopy (OGD), is an investigative technique used to examine the upper gastrointestinal tract. It involves the insertion of a long, narrow tube with a camera, which also includes lighting, irrigation and insufflation systems, into the mouth through to the duodenum. An OGD is effective at identifying the cause of diseases and facilitating the diagnosis of ulcers, polyps and cancers. Using different accessory instruments, it can be used to both diagnose and treat a range of conditions through procedures such as biopsy (taking a tissue sample for further examination), polypectomy (removal of polyps) and endoscopic dissection.


When should an upper endoscopy be considered?

Indications that an upper endoscopy may be required include:
  • Ingestion of a foreign body
  • Difficulty swallowing
  • Repeated vomiting
  • Vomiting blood
  • Anaemia
  • Pain and discomfort
  • Heartburn and acid reflux
  • Passing tarry stool
  • A mass in the abdomen

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