Gastrointestinal Bleeding Embolization:what to expect

This is often an urgent or emergency procedure requested if you have:

• Severe bleeding from stomach ulcers that an endoscopy could not fix.
• Bleeding in the lower intestines (colon) causing bloody stools.
• Internal bleeding where surgery is considered too risky.

You will likely be heavily sedated or under general anesthesia due to the emergency nature of the bleeding, so you will not feel pain during the treatment.

Because this is typically performed during an emergency to treat active bleeding, standard fasting and preparation protocols are bypassed. The medical team will quickly give you fluids or blood transfusions to keep you stable while they work.

CT angiography or endoscopy may help localize bleeding first. Angiography can miss intermittent or slow bleeding, and embolization aims to reduce or stop flow in a culprit vessel. Hemostasis is not guaranteed; rebleeding, bowel ischemia, vessel injury, kidney injury, and need for surgery remain possible.

Depending on how difficult it is to find the exact bleeding vessel, the procedure can take anywhere from 1 to 2 hours.

Interventional radiology is minimally invasive, but it is not risk-free and is not automatically safer or more effective than surgery, endoscopy, medicines, or observation for every patient. Technical success does not always produce symptom relief or cure disease, and repeat treatment or another approach may be needed. Suitability depends on anatomy, disease severity, comorbidities, imaging, local expertise, and the alternatives available.

Risks vary by procedure and may include pain, bleeding, infection, contrast reaction, kidney injury, radiation exposure, vessel or organ injury, clotting, device movement or blockage, sedation complications, treatment failure, and an unplanned operation or admission. Tissue sampling can be nondiagnostic and requires pathology; tumor treatments require oncology follow-up. The consent discussion should cover the patient-specific benefits, material risks, alternatives, and what happens if the procedure cannot be completed.

Preparation is individualized. Give the team a complete list of anticoagulants, antiplatelet drugs, diabetes medicines, supplements, allergies, kidney problems, pregnancy possibility, and prior contrast reactions. Do not stop a blood thinner or diabetes medicine on your own: the procedural team and prescribing clinician must balance bleeding against thrombosis or metabolic risk and provide exact written instructions. Fasting, laboratory tests, antibiotics, sedation, escort, admission, and aftercare differ by procedure.

• CIRSE: Interventional-radiology procedures
• CIRSE: Clinical Practice Manual
• American College of Radiology: Manual on Contrast Media

GI bleeding embolization is a critical, minimally invasive technique that can stop severe internal bleeding quickly. It is often a much safer alternative to open abdominal surgery for patients who are already unwell.