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Radiology, Vol 188, 73-77, Copyright © 1993 by Radiological Society of North America

ARTICLES

Portal vein embolization: utility for inducing left hepatic lobe hypertrophy before surgery

T de Baere, A Roche, D Vavasseur, E Therasse, S Indushekar, D Elias and C Bognel
Department of Interventional Radiology, Institut Gustave Roussy, Villejuif, France.

Right portal vein embolization (PVE) was performed in patients in need of wide hepatectomy to induce preoperative hypertrophy of the future remnant liver (FRL), which would have been insufficient for safe resection. PVE was achieved with cyanoacrylate or gelatin sponges by using a percutaneous subxiphoid approach in 10 patients with tumors in noncirrhotic liver. Surgery was performed in nine patients 17-48 days (mean, 34 days) after PVE. Computed tomographic liver volumetric studies were performed before embolization and before surgery. Clinical and biologic tolerance of PVE was excellent except in one case. Histopathologic studies showed occlusion of portal veins with minimal parenchymal ischemia in eight of nine patients. The FRL volume increased by 64%, which represented 31% of the preresection volume of the liver. Better hypertrophy was seen after cyanoacrylate embolization. The authors conclude that PVE is safe and well tolerated and induces marked hypertrophy of the unembolized parenchyma in noncirrhotic patients. This hypertrophy allows hepatectomy to be performed under safe conditions when the FRL volume is initially insufficient.


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