Acetic acid during endoscopy for Barrett's oesophagus

It is an imaging aid used during upper endoscopy, not a treatment for Barrett's oesophagus and not a diagnosis of cancer by itself.

The endoscopist sprays a weak acetic-acid solution onto the Barrett's lining. The surface temporarily becomes pale, making its pattern easier to inspect. Areas that lose this pale appearance differently or have an irregular pattern may receive closer attention.

Visual findings guide sampling but do not replace laboratory examination. A pathologist examines biopsy tissue for inflammation, dysplasia or cancerous change, and that result helps determine the follow-up plan.

Follow the endoscopy unit's fasting and medicine instructions, especially guidance about blood-thinning medicines and diabetes treatment. Tell the team about allergies, swallowing problems and previous reactions to sedation.

Afterwards, confirm when biopsy results should be available and who will discuss them. Continue prescribed reflux treatment unless the clinician changes it, and keep the recommended surveillance appointment even if you feel well.

Get urgent medical help after endoscopy for severe or worsening chest or abdominal pain, breathing difficulty, vomiting blood, black stools, fainting, fever or persistent vomiting.

Separately, arrange prompt assessment for progressive difficulty swallowing, food sticking, unexplained weight loss or recurrent vomiting. These symptoms need evaluation whether or not a surveillance visit is already booked.

Ask whether any targeted biopsies were taken, what the pathology terms mean, whether dysplasia was found, when another endoscopy is advised and whether treatment by a specialist Barrett's service should be considered.