Publicaciones científicas

Partial liver volume radioembolization induces hypertrophy in the spared hemiliver and no major signs of portal hypertension

Fernández-Ros N, Silva N, Bilbao JI, Iñarrairaegui M, Benito A, D'Avola D, Rodriguez M, Rotellar F, Pardo F, Sangro B.
Liver Unit, Department of Internal Medicine, Clinica Universidad de Navarra (University Clinic of Navarra), Pamplona, Spain

Revista: HPB

Fecha: 27-mar-2013

Radiología Medicina Nuclear Hepatología Cirugía General y Digestiva

BACKGROUND
Post-treatment contralateral hemiliver hypertrophy has created an interest in lobar liver radioembolization (RE) as a pre-surgery tool.

METHODS
Liver and spleen volumes and function were studied in 83 patients submitted to partial liver volume RE at 4-8 weeks (T1), 10-26 weeks (T2), and >26 weeks (T3) after RE.

RESULTS
More than half of the patients had cirrhosis with hepatocellular carcinoma. The main finding was a progressive increase in the volume of the spared hemiliver (mean absolute increase at T3: 230 ml). The percentage of patients in whom the baseline ratio of spared volume to total liver volume was <40% dropped from 56.6% at baseline to 29.4% at T2 (P < 0.001). A significant and progressive increase in spleen volume but not in portal vein diameter was also observed. A small percentage of patients developed hypersplenism, mostly those without cirrhosis (16.0% at T2). Six patients (five with portal vein thrombosis, cirrhosis or both) developed signs of portal hypertension by T2.

CONCLUSIONS
The present results warrant further studies to better elucidate the mechanism underlying this phenomenon of spared hemiliver hypertrophy and to investigate its role as an alternative to portal vein embolization in the management of patients with potentially resectable liver tumours.

CITA DEL ARTÍCULO   2013 Mar 27. doi: 10.1111/hpb.12095

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