Selection for Resection of Hepatocellular Carcinoma and Surgical Strategy

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SelectionforResectionofHepatocellularCarcinomaand

SurgicalStrategy:IndicationsforResection,Evaluationof

LiverFunction,PortalVeinEmbolization,andResection

DarioRibero,MD,1StevenA.Curley,MD,1HiroshiImamura,MD,2

DavidC.Madoff,MD,3DavidM.Nagorney,MD,4KelvinK.Ng,MD,PhD,5

MatteoDonadon,MD,6ValerieVilgrain,MD,7GuidoTorzilli,MD,PhD,6MarkRoh,MD,8

andJean-NicolasVauthey,MD1

1DepartmentofSurgicalOncology,TheUniversityofTexasM.D.AndersonCancerCenter,1515HolcombeBlvd,Houston,Texas77030-4009,USA2Hepato-Biliary-PancreaticSurgeryDivision,ArtificialOrganandTransplantationDivision,DepartmentofSurgery,GraduateSchoolofMedicine,UniversityofTokyo,Tokyo,Japan3DepartmentofInterventionalRadiology,TheUniversityofTexasM.D.AndersonCancerCenter,1515HolcombeBlvd,Houston,Texas77030-4009,USA4DivisionofGastroenterologicandGeneralSurgery,MayoClinic,RochesterMinnesota,USA5DepartmentofSurgery,TheUniversityofHongKong,Medical,CentreQueenMaryHospital,HongKong,China6LiverSurgeryUnit,ThirdDepartmentofSurgery,UniversitySchoolofMedicine,IstitutoClinicoHumanitasIRCCS,Rozzano,Milan,Italy7DepartmentofRadiology,HopitalBeaujon,Clichy,France8DepartmentofSurgery,DrexelUniversityCollegeofMedicine,AlleghenyGeneralHospital,Pittsburgh,Pennsylvania,USA

KeyWords:Hepatocellularcarcinoma–Liverresection—Patientsselection—Portalveinembo-lization—Chemoembolization—Intraoperativeultrasonography—Radiofrequencyablation.

Amongthepotentiallycurativetreatmentoptions

forhepatocellularcarcinoma(HCC),liverresectionis

widelyconsideredthemainstayofcurativetherapy.

Animportantaspectofthemorbidity,mortality,and

long-termoutcomeofliverresectionforHCCrelates

topatientselection.Choiceoftreatmentprimarily

dependsontumorstageandthefunctionalstatusof

theliverbecausemostpatientswithHCCharbor

chronicliverdisease.1Forthisreason,whencom-

paredwithpercutaneousablationtherapiesortran-

sarterialchemoembolization(TACE),surgeryhasa

higherriskasaresultofremovaloffunctioningliver

parenchyma.Carefulassessmentoftheclinicalseverityofcirrhosisandtheliverfunctionalreserveis

thereforepivotaltoensuresuitableselectionof

appropriatecandidatesforresection.

Ourobjectiveistoreviewthecurrentindications

forliverresectioninpatientswithHCC,topresent

thecurrentcriteriaforselectionofsurgicalcandi-

dates,andtodiscusspreoperativeandintraoperative

strategiestoimprovethesafetyofliverresection.

TUMORSTAGE

Theassessmentoftumorextentistheprimarystep

fordeterminingresectabilityandtheappropriatetype

ofsurgicalresection.Triphasiccontrast-enhanced

computedtomography(CT)isessentialtodefinethe

numberandsizeoftheHCCs;todetectthepresence

ofsatellitenodulesandtumorinvasionoftheportal

vein,itsbranches,ortheinferiorvenacava;to

ex-ReceivedJune11,2007;acceptedJuly17,2007;publishedonlineJanuary31,2008.Addresscorrespondenceandreprintrequeststo:Jean-NicolasVauthey,MD;E-mail:jvauthey@mdanderson.org

PublishedbySpringerScience+BusinessMedia,LLCÓ2007TheSocietyofSurgicalOncology,Inc.AnnalsofSurgicalOncology15(4):986–992DOI:10.1245/s10434-007-9731-y

986cludeanyextrahepaticmetastasis;and,forsurgical

planning,toclarifytherelationshipofthetumors

withtheintrahepaticvascularandbiliarystructures.

Magneticresonanceimagingistheimagingmodality

ofchoicewhencontrastagentsarecontraindicatedor

betterlesioncharacterizationisneeded.Theroleof

positronemissiontomographyinthepreoperative

workupisstillnotstandardized,butitcanbeuseful

todetectextrahepaticmetastases.

BecausemostHCCsdevelopinpatientswith

chronicliverdiseaseduetohepatitisvirusinfectionor

alcoholabuse,1theprognosisofHCCpatientsde-

pendsnotonlyontumorstage,butalsoonthe

underlyingliverfunction.Therefore,severalprog-

nosticstagingmodels,2accountingforboththeextent

ofHCCandthefunctionalreserveoftheliver,have

beendevelopedtopredictsurvivalandassessout-

comesoftherapy.Oneofthesesystems,fromthe

BarcelonaClinicLiverCancer(BCLC)group,strat-

ifiespatientsintofourcategories(i.e.,early,inter-

mediate,advanced,andterminal),recommendingfor

eachdiseasestagedifferenttreatmentoptions.3

AccordingtotheBCLCstagingsystem,whichhas

beenrecentlyintegratedintotheAmericanAssocia-

tionfortheStudyoftheLiver(AASLD)guidelines,4

hepaticresectionhasamarginalroleinthetreatment

ofHCCandisindicatedonlyinpatientswithearly-

stageHCCdefinedempiricallyby(1)theMilancri-

teria5(andnotbythetumor,node,metastasissystem

AmericanJointCommitteeonCancer/International

UnionAgainstCancerstagingsystems)6,7;(2)normal

clinicalperformancestatus;and(3)preservedliver

function(bilirubinlevels<1mg/dL,absenceof

portalhypertension,andChild-PughclassAstatus).

Thereisnodoubtthatpatientswithearly,small

HCChaveexcellentprognosisafterhepaticresec-

tion.8However,retrospectiveanalysesoflarge-size

surgicalseriesshowthat43%to48%ofpatients

treatedwithcurativeliverresectionhavedisease