Endoscopy Plus Sclerotherapy

Endoscopy is a diagnostic tool that allows doctors to view the inside of the gastrointestinal tract using a thin, flexible tube with a camera. When combined with sclerotherapy, it becomes a therapeutic procedure.

In sclerotherapy, a special solution (called a sclerosant) is injected into or around the varices during endoscopy. The sclerosant causes the veins to clot and scar, reducing their size and preventing further bleeding.

Why is the Procedure Done?

Doctors recommend endoscopy plus sclerotherapy mainly for treating esophageal varices. Common indications include:

• Active bleeding – Emergency control of bleeding varices.
• Prevention of re-bleeding – In patients with recurrent bleeding episodes.
• When band ligation is not possible – For example, if the veins are too small or inaccessible.
• Management of gastric varices – In some cases, sclerotherapy can be used when other techniques are not available.

Preparation for Endoscopy Plus Sclerotherapy

Preparation is similar to other upper GI endoscopic procedures:

• Fasting – Patients should not eat or drink for at least 6–8 hours before the procedure.
• Hospital monitoring – Since sclerotherapy is often done in emergencies, patients may already be admitted for GI bleeding.
• Medication review – Blood-thinning drugs may need adjustment.
• Consent and counseling – Patients or their families are informed about the benefits and risks.

How the Procedure is Performed

The procedure usually lasts 20–30 minutes and involves these steps:

• Sedation and monitoring – The patient is sedated for comfort. Heart rate, blood pressure, and oxygen levels are monitored.
• Insertion of the endoscope – The gastroenterologist passes the scope through the mouth into the esophagus.
• Identification of varices – The doctor locates the bleeding or high-risk veins.
• Sclerotherapy injection – A fine needle is introduced through the scope, and a sclerosant solution (such as sodium tetradecyl sulfate or ethanolamine) is injected directly into or around the varices.
• Effect of sclerosant – The solution irritates the vein walls, leading to clotting, scarring, and shrinkage of the varices.

Types of Sclerotherapy

There are two main approaches:

• Intravariceal injection – The sclerosant is injected directly into the varix to promote clot formation.
• Paravariceal injection – The solution is injected into the tissue surrounding the varix, compressing and collapsing the vein.

Both methods may be used depending on the clinical situation.

Benefits of Endoscopy Plus Sclerotherapy

• Rapid control of bleeding in emergency cases
• Useful when banding is not feasible
• Can treat both esophageal and, in some cases, gastric varices
• Helps stabilize patients with severe bleeding
• Can be combined with medications and other therapies for better outcomes

Risks and Complications

Although effective, sclerotherapy has higher complication rates compared to band ligation. Possible risks include:

• Chest pain or discomfort after the procedure
• Fever and mild inflammation
• Ulcer formation at the injection site
• Stricture (narrowing) of the esophagus after repeated sessions
• Perforation of the esophagus (rare but serious)
• Recurrence of varices requiring repeated treatment

What to Expect After the Procedure

After endoscopy plus sclerotherapy, patients are monitored closely:

• Hospital stay – Patients with active bleeding are usually kept under observation for 24–48 hours.
• Diet – Soft or liquid diet for the first day to reduce irritation.
• Medications – Doctors may prescribe proton pump inhibitors (PPIs) to help healing and beta-blockers to reduce portal hypertension.
• Follow-up – Repeat endoscopies are often required to check for recurrence and to perform additional sclerotherapy if needed.

Comparison with Band Ligation

• Band ligation has become the preferred method due to lower complication rates.
• Sclerotherapy is still used when banding cannot be performed, especially in emergency situations.
• Banding has fewer risks of ulcers and strictures compared to sclerotherapy.

Alternatives to Endoscopy Plus Sclerotherapy

• Medications – Non-selective beta-blockers (like propranolol) to lower portal pressure.
• TIPS procedure (Transjugular Intrahepatic Portosystemic Shunt) – A radiological technique to reduce portal hypertension.
• Surgery – Rarely performed but may be considered in difficult cases.
• Balloon tamponade – A temporary emergency measure for uncontrolled bleeding.

Long-Term Outlook

Endoscopy plus sclerotherapy can be effective in stopping bleeding and reducing the immediate risk of death from variceal hemorrhage. However, because varices often recur, long-term management of underlying liver disease is essential.

Patients usually need a combination of regular monitoring, lifestyle changes (avoiding alcohol), medication, and follow-up endoscopies to prevent complications.