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Portal vein embolization (PVE) is done to increase the size and function of the healthy part of the liver (future liver remnant) before major liver surgery. It is an important preoperative technique for minimising postoperative liver failure.This process guarantees that, following resection, the remaining liver can fulfil the body's metabolic needs.
You should see a specialist if you have a liver tumour that needs to be surgically removed, if a big liver resection is planned but the remaining liver volume is likely to be minimal, or if you have a liver mass with abnormal liver function tests. If you experience symptoms like chronic right upper abdomen pain, jaundice, unexplained weight loss, exhaustion, or appetite loss, you should also seek medical assistance.
PVE preparation consists of contrast CT/MRI with liver volumetry, and blood tests (CBC, LFT, RFT, PT/INR, hepatitis markers, patients may need to grant permission for contrast and interventional radiology procedures, stop taking blood thinners or antiplatelets, and fast for six to eight hours.
Portal Vein Embolization is performed in an interventional radiology suite:
- Both sedation and/or local anaesthesia are administered.
- A little skin incision is done to gain access to the portal vein system.
- Under imaging, a catheter is inserted into the branches that supply the area of the liver that needs to be removed.
- These portal vein branches are blocked by injecting embolic materials.
- Blood flow is diverted to the future liver remnant, which is the surviving liver.
- The puncture site is sealed when the catheter is removed.
- The patient's liver function, discomfort, and vital signs are tracked.
Depending on the anatomy and complexity of the liver, the treatment usually takes 60 to 120 minutes.Following the procedure, monitoring is done to make sure vital signs are stable and there are no problems right away.
PVE is generally safe but few possible complications may be arise:
- Fever or pain following embolisation
- Haematoma or bleeding at the puncture location
- An infection
- Contrast kidney strain or allergy (rare)
- Portal vein thrombosis: an uncommon but dangerous condition
- Malfunction of the liver, particularly in cirrhosis
- Rare non-target embolisation
- Nausea, fatigue and temporary loss of appetite
PVE has several benefits: increasing the amount of liver left over after surgery, reducing the risk of liver failure after hepatectomy, and raising the possibility that a major liver resection is safe are only a few advantages of PVE. It improves cancer patients' long-term surgery outcomes and is relatively less invasive than surgical alternatives.
After PVE, recovery typically happens quickly, with a hospital stay of one to three days and a few days of minor fever and gastrointestinal pain. Before undergoing final surgery, the majority of patients resume their regular activities in 5–10 days, and follow-up imaging in 2–6 weeks evaluates liver growth. Initially, heavy activity should be avoided and continuous monitoring should be maintained.
Effective liver enlargement can be achieved by portal vein embolisation; 70–90% of patients exhibit liver growth, and the majority of eligible patients develop sufficient hypertrophy to undergo scheduled liver surgery. The type and development rate of the tumour, the patient's functional and nutritional state, and liver health (healthy vs. cirrhotic) all influence overall success.
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+99Process Involved for Portal Vein Embolization (PVE)
- Assessment of liver volume and case selection
- Anaesthesia assessment and pre-procedure research
- Interventional radiologist's PVE procedure
- Monitoring following the surgery and managing discomfort and fever
- CT/MRI follow-up to assess hypertrophy
- Surgery to remove the liver after sufficient enlargement
- Hepatocellular cancer (HCC)
- Cancer of the cholangi
- Liver metastases from colorectal cancer
- Hepatectomy is necessary for large liver tumours.
- Some complicated benign tumours of the liver
There are various methods for carrying out PVE:
- Transhepatic portal vein embolisation via percutaneous means (most common)
- Trans-ileocolic PVE (infrequent, surgical entry)
- Depending on the architecture and resection plan, segmental or selective PVE
For treatment in {country}, patients may need:
- A valid passport and visa (for patients from abroad)
- Medical reports (biopsy, if performed, CT/MRI)
- Consent documents for interventions
- Approvals from insurance (if applicable)
PVE may be appropriate for a patient if:
- There will be a major liver resection.
- There is not enough future liver residual volume.
- Embolisation is acceptable for liver function.
- There is no serious coagulopathy or unchecked infection.
- Liver biopsy (in the event that the diagnosis is uncertain)
- Biliary drainage through the skin (if obstructive jaundice)
- In certain cancer instances, transarterial chemoembolization (TACE)
- Surgery to remove a significant portion of the liver (following PVE)
- Safer results from liver surgery
- Keeps the liver from failing following excision
- Faster recuperation with less invasiveness
- Can increase the number of surgical choices available to patients who were previously "not fit for resection."
After a successful PVE:
- The liver remnant grows in the future.
- In the remaining parts, liver function improves.
- A large hepatectomy becomes a safer option for the patient.
- The overall risk of surgery is greatly decreased.
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