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Vol. 76. Issue 3.
Pages 152-158 (September 2004)
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Vol. 76. Issue 3.
Pages 152-158 (September 2004)
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Cálculo del volumen hepático mediante TC espiral: utilidad en la planificación de la resección hepática mayor en pacientes no cirróticos
Utility of spiral computed tomography calculation of hepatic volume in the planning of major liver resection in noncirrhotic patients
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María Dolores Moralesa,1
Corresponding author
mmoralescano@hotmail.com

Correspondencia: Servicio de Radiodiagnóstico, Hospital Universitario Virgen de la Arrixaca. Crtra. Madrid-Cartagena, s/n. 30120 El Palmar (Murcia). España
, Ricardo Roblesb, Caridad Marínb, Antonio Capela, Victoria Vázqueza, Manuel Reusa, Pablo Ramirezb, Francisco Sánchez-Buenob, Juan Ángel Fernándezb, Pascual Parrillab
a Servicio de Radiodiagnóstico. Hospital Universitario Virgen de la Arrixaca. Murcia
b Servicio de Cirugía General y Aparato Digestivo I. Hospital Universitario Virgen de la Arrixaca. Murcia. España
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Resumen
Introducción

Mediante tomografía computarizada (TC) espiral es posible estimar la extensión de la resección hepática preoperatoriamente y seleccionar a los pacientes que presentan mayor riesgo de insuficiencia hepática posquirúrgica.

El objetivo de este estudio es determinar de forma prospectiva la utilidad de la estimación del volumen hepático residual (VHR) mediante TC espiral en la planificación de la resección hepática mayor (RHM) en pacientes no cirróticos.

Pacientes y método

Entre septiembre de 2000 y marzo de 2003 se calculó el volumen hepático total (VHT) y el VHR en 31 pacientes como parte de la planificación preoperatoria de una RHM. En los pacientes con un porcentaje de VHR/VHT menor del 25% se realizó una oclusión portal derecha preoperatoria.

Resultados

En 7 pacientes, el porcentaje de VHR/VHT fue menor del 25%. En 2 posibles donantes vivos la resección estaba contraindicada. En los 5 restantes, tras la oclusión portal se consiguió suficiente hipertrofia del hígado izquierdo para indicar la RHM.

Conclusión

La medida del VHR afectó a la decisión quirúrgica, al seleccionar los pacientes en los que es posible realizar una resección segura. En caso de quedar escaso hígado residual, las técnicas de embolización preoperatoria o ligadura intraoperatoria de vena porta han resultado ser un buen procedimiento para incrementarlo.

Palabras clave:
TC espiral
Embolización portal
Resección hepática mayor
Regeneración hepática
Introduction

Spiral computed tomography (CT) can be used to estimate the extension of liver resection preoperatively and to select patients with the highest risk of postsurgical hepatic insufficiency.

The aim of this prospective study was to determine the utility of estimating residual hepatic volume (RHV) using spiral CT in the planning of major liver resection (MLR) in noncirrhotic patients.

Patients and method

Between September 2000 and March 2003, total hepatic volume (THV) and the volume of hepatic segments destined for resection (RHV) were calculated in 31 patients as part of the preoperative planning of MLR. Patients in whom RHV/THV% was less than 25% underwent preoperative right portal occlusion.

Results

RHV/THV% was less than 25% in seven patients. Resection was contraindicated in two possible living donors. Portal occlusion in the remaining five achieved sufficient hypertrophy of the left liver to indicate MLR.

Conclusion

The size of MLR affects surgical decision- making, with selection of patients in whom resection can be safely performed. If a small amount of residual liver is left, preoperative embolization or intraoperative ligation of the portal vein have proved to be effective procedures for increasing its size.

Key words:
Spiral CT
Portal vein embolization
Liver resection
Liver regeneration
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Copyright © 2004. Elsevier España, S.L.. Todos los derechos reservados
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