portal vein embolization
Interventional procedure to induce liver hypertrophy before major hepatic resection.
Full Definition
Portal vein embolization is a minimally invasive radiological procedure performed to induce compensatory hypertrophy of the liver parenchyma before major hepatectomy. The procedure involves blocking blood flow to the portal vein branches supplying the liver segments planned for resection, causing the remaining liver tissue to increase in size and function. This technique is particularly valuable in patients with borderline liver function or those requiring extensive resection for colorectal liver metastases or primary liver tumors. PVE reduces the risk of postoperative liver failure by ensuring adequate future liver remnant volume and function.
Usage
Usage note: Often abbreviated as PVE in clinical documentation.
In Context
- "Portal vein embolization achieved 28% hypertrophy of the future liver remnant." — Interventional radiology report
- "PVE is indicated given the planned extended right hepatectomy." — Surgical consultation