How do I do it: laparoscopic cholecystectomy - Majumder

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Although not every patient with gallstones will manifest symptoms or require intervention, laparoscopic cholecystectomy (LC), which accounts for ... Home / Vol5(April2020) / HowdoIdoit:laparoscopiccholecystectomy HowdoIdoit:laparoscopiccholecystectomy Video1HowIdoit:laparoscopiccholecystectomyandintraoperativecholangiogram. Introduction IntheUnitedStates,gallstonediseaseremainsaprevalentconditionaffectingover20to25millionAmericans,representing10–15%ofthepopulation(1,2).Althoughnoteverypatientwithgallstoneswillmanifestsymptomsorrequireintervention,laparoscopiccholecystectomy(LC),whichaccountsfor90%ofallcholecystectomies,remainsoneofthemostcommonlyperformedprocedures—conservativelynumbering750,000peryear(3).Sinceitsintroductioninthe1980sandsubsequentadoption,LChasbecomethestandardofcareduetoitsadvantagesofreducedcostandhospitallengthofstay,andincreasedpatientsatisfaction(4,5).Overall,LCisconsideredasafeprocedure,asmorbiditycanoccurinapproximately6–8%ofthepatients(6),includingbleeding,abscess,bileleak,bowel/vascularinjury,woundcomplication,andbileductinjury(BDI)(6,7).Althoughbileductinjuryhasbeenbecomelessfrequentovertheyears,occurringinapproximately0.2–0.4%ofcases,thefrequencyisstillsomewhathigherthanintheeraofopencholecystectomy(8,9).Thus,performinglaparoscopiccholecystectomysafelyandembracingtheprinciplesoutlinedbelowiscrucial. BDIhasbeenassociatedwithothercomplicationsandthenecessityforfurtherprocedures/interventions,highermortality,lowerqualityoflifeanddisability,increasedhealthcareburdenandlitigation(10,11).Studieshaveshownbothincreasedshortandlong-termmortalityduetoBDI(12).Inordertoenhancethesafetyofcholecystectomyandreducetherateofbiliaryinjury,in2014theSocietyofGastrointestinalandEndoscopicSurgeons(SAGES)formedtheSafeCholecystectomyTaskForcewiththegoalofenhancingacultureofsafetyaroundthisprocedure(13).TheauthorsreportthesurgicaltechniquesthatfollowtheprinciplesespousedbySAGESduringlaparoscopiccholecystectomyinordertoensureasafeprocedure. Operativetechnique Thepatientisplacedinsupinepositionwiththeleftarmtuckedtofacilitateintraoperativecholangiography. Withthesurgeonstandingtotheleftofthepatientandfirstassistantstandingonthepatient’srightside,abdominalaccessisobtainedandpneumoperitoneumisestablished.Inourpractice,wegenerallyperformanopencutdowntechniqueandHassoncannulaplacementattheumbilicus(T1position)(Figure1).Inpatientswithpriorperiumbilicalmidlineincisions,analternativeaccesssiteisused,eitherclosedwithaVerresneedleintherightupperquadrantmid-clavicularbelowtheliverorleftupperquadrant(Palmer’spoint)orviaanopenepigastricincision.Intheobesepatient,aclosedVerresneedleaccessisobtainedjusttotherightofthemidline15cmbelowthexiphoidsincetheumbilicusisdisplacedinferiorlyinthesepatients;thisallowsthecameraporttobepositionedforadequatevisualizationofthedissectionsite.Aftercreationofthepneumoperitoneum,5mmportsareplacedintherightlateralsubcostalposition(T2)andrightsubcostalmid-clavicularline(T3),alongwitha5mmepigastricport(T4),whichisinsertedjusttotherightedgeofthefalciformligament.AgrasperintroducedfromT2isusedtoapplycephaladtractiononthefundustoelevatethegallbladderandagrasperthroughthemid-clavicularportretractstheinfundibulumlaterallyandinferior.TheworkingtrocarsthatareusedbythesurgeonareT3andT4. Figure1Laparoscopiccholecystectomyportpositioning. Step1:Dissectionofthehepatocystictriangle Thegallbladderisretractedovertheliverwithcephalictractionwhileinferior-lateraltractionontheneckofthegallbladderisappliedthroughthemidclavicularportsite.Theassistantcanusuallymaintainconstanttensiononthisretractorunlessadjustmentsarerequiredforchangesinvisualization.UsingT3,thesurgeoncanmanipulatetheneckofthegallbladdertoexposeanterior(medial)andposterior(lateral)aspectsasneeded.Ifthegallbladderisdistended,werecommenddecompressingitwithaneedleaspirationdevicetoavoidperforationwithspillageofbileandgallstones.Ifadhesionsarepresent,thesearetakendownbluntlyorwithmonopolarenergytakingcaretoavoidenergyuseneartheduodenumwhichcanbeadherenttothegallbladder.Thedissectionbeginsbyincisingperitoneumalongtheedgeofthegallbladderonbothsidestoopenupthehepatocystictriangle.Thiscanbecarriedupposteriorlyalongthewallofthegallbladderatitsinterfacewiththeliver.Acombinationofbluntdissectionandjudicioususeofcauteryareneededwithagoalofclearingthetriangleoffatandfibroustissue. Step2:Establishingthecriticalviewofsafety Thecriticalviewofsafetyrequiresthreecriteriatobemet:(I)thehepatocystictriangle(definedasthetriangleformedbythecysticduct,thecommonhepaticduct,andinferioredgeoftheliver)isclearedofallfatandfibroustissue.Thecommonbileductandcommonhepaticductarelookedforbutnotexposedbydissection;(II)theloweronethirdofthegallbladderisseparatedfromthelivertoexposethecysticplate.Thecysticplateisdefinedastheliverbedofthegallbladderandrepresentsthegallbladderfossa;and(III)twoandonlytwostructuresshouldbeseenenteringthegallbladder,representingthecysticductandthecysticartery.Oncethisviewisestablished,werecommendapauseandconfirmationamongsttheoperatingsurgeonandassistantpriortoclippingorcuttingofanystructures.Atthisjuncture,identificationofaberrantanatomyiscritical.Variationsincysticductpositionandentryintothecommonbileductarecommon,asarevariantsinarterialanatomy.Athoroughunderstandingandappreciationofaberrantanatomyisimportanttominimizetheriskofaninjury.Onecommonconsiderationisensuringtherighthepaticarteryisnotmistakenforthecysticarteryoraccessorybranchposteriorlyintheareaofthecysticplate. Step3:Cysticarteryisclippedanddivided Inourinstitutiontominimizecosts,areusableclipapplierwith8mmclipsisutilizedtoclipthecysticartery,twoclipsontheproximalsideandonecliponthedistal(specimen)sidewithanadequategapbetweentoallowfordivision.Hookscissorsareusedtodividetheartery.Careshouldbetakenduringthisprocessnottodislodgetheproximalclips.Werecommendleavingasmallcuffoftissuebeyondtheedgeoftheclipstopreventaccidentaldislodgementeitherduringthecaseorafter.Aclipisplacedontheneckofthegallbladderattheupperendofthecysticduct-GBjunction.Divisionrightattheclipcanpredisposethedistalspecimencliptobecomedislodged. Step4:Operativecholangiographyanddivisionofthecysticduct Itisourpracticetoperformcholangiographyroutinely.CholangiographyismorecommonlyperformedselectivelybutcompellingindicationsaresuspicionofCBDstones(historyofabnormalliverfunctiontestsorgallstonepancreatitis),adilatedcommonbileduct,uncertaintyofanatomyorconcernforbiliaryinjury,andahistoryofRouxYgastricbypasswhichprecludessubsequentERCP.Ifnocholangiogramisperformed,similartothecysticartery,thecysticductcanbeclippedwiththreetitaniumclips,twoonthestaysideandoneonthegallbladderspecimenside.Incasesinwhichthecysticductisdilatedorthickenedortherearebileductstones,apre-tiedendoloopsutureshouldbeusedtosecuretheductontheproximalside. Ifanintraoperativecholangiogramistobeperformed,asingleclipisplacedatthejunctionofthecysticductandinfundibulumofthegallbladder.Thecysticductispartiallyincisedwithhookscissors.Thecysticductotomyisthendilatedwithamicroscissorsinordertodisruptanyvalvesinthecysticduct.A4FrenchureteralcatheteristheninsertedintothecysticductusinganOlsoncholangioclamptosecureit.SinglespotfilmsareusedtoadjustthepositionoftheC-armsothatboththeentirebiliarytreeandduodenumcanbevisualizedinthecenteroftheframe.Weutilizetwo20mLsyringes,onecontainingsalineandtheothera50-50mixtureofsalineandiodinatedcontrastmediaattachedviaathree-waystopcockforinjection.Theductisinitiallyflushedwithsalineandthencontrastunderfluoroscopy.Oneshouldseeretrogradefillingintothecommonhepaticductaswellasrightandleftbranchesintotheliverandcontrastshouldflowfreelyintotheduodenum,ensuringapatentbiliarytree.Ifthereisnoentryofcontrastintotheduodenum,glucagon1mgshouldbegivenintravenouslytorelaxthesphincterofOddiandtheinjectionrepeatedin2–3minutes.Ifdifficultyisencounteredwithretrogradefillingoftheduct,placingthepatientinTrendelenburg,gentlycompressingthedistalductwithanatraumaticgrasper,orinjectionofmorphineintravenouslycanbegiventofacilitatecontractureofthesphincter.Ifastoneisvisualizedinthebileduct,thenthedecisionshouldbemadewhethertoattemptatrans-cysticcommonbileductexploration,laparoscopiccholedochotomy,orreferralforpostoperativeERCP,accordingtosurgeonexpertiseandpreference. Onceasatisfactorycholangiogramisobtained,thecholangiogramcatheterisremoved,andthecysticductisdoublyclippedanddivided.Asstatedabove,ifthereisconcernaboutthesecurityoftheclipsonthecysticduct,apre-tiedloopsutureshouldbeusedtosecuretheductinstead. Step5:Gallbladderseparationfromtheliverbed Followingdivisionofthecysticduct,retrogradedissectionofthegallbladderfromtheliverbedisperformed.Inourinstitution,weuseanL-hookmonopolarenergydevicetodissectgallbladderofftheliver.Careshouldbetakentostayintheplanebetweenthegallbladderandliverbed.Entryintotheliverbedmayresultinbleedingand/orbileleakagefromasuperficialsubparenchymalduct.Entryintothegallbladderwithspillageofbileandstonesmakesubsequentdissectionmoredifficult,butshouldnothaveanyadverseconsequencesaslongasallbileandstonesareremovedfromthefield.Maintainingappropriateretractionbymovingtheneckofthegallbladderbackandforthtooptimizevisualizationandmaintainingtensiononthedissectionlinefacilitatesthisstepintheoperation.Forthedifficultgallbladderinthesettingofacutecholecystitis,anadvancedenergydevicesuchasanultrasoniccoagulatormaymaintainhemostasisbasisbetterandproducelesssmokeplume,whichmakesthedissectioneasierandmoreefficient.Justpriortocompletedisassociationofthegallbladderfromitsbed,thelastattachmentshouldbeleftinplacetoallowforretractionofthelivercephaladandclearvisualizationofthecysticplatetoallowforanyneededhemostasis.Theliverbedisirrigatedandanybloodorbileoraspiratedfromthefield.Thegallbladderisthenplacedinanentrapmentbagandremovedatthe10–12mmportsite. Step6:Specimenandportremoval Oncethespecimenisinthebag,itcanberemovedatthe10mmportsitewhetherattheumbilicusorepigastricregion.Thesestepsaresummarizedinourvideo(Video1).Someenlargementoftheskinandfascialopeningmaybeneeded,especiallyiftherearemultipleorlargerstonesorathickenedgallbladder.Oncethespecimenisremoved,allportsareventedtoeliminateanyresidualCO2gas.Thefasciaattheextractionportsiteshouldbeclosedwith0-Vicrylorsimilarsutureandtheskinclosedwithanabsorbablemonofilamentsubcuticularsuture. Acknowledgments Funding:None. Footnote ConflictsofInterest:AllauthorshavecompletedtheICMJEuniformdisclosureform(availableathttp://dx.doi.org/10.21037/ales.2020.02.06).Theauthorshavenoconflictsofinteresttodeclare. EthicalStatement:Theauthorsareaccountableforallaspectsoftheworkinensuringthatquestionsrelatedtotheaccuracyorintegrityofanypartoftheworkareappropriatelyinvestigatedandresolved.Allproceduresperformedinstudiesinvolvinghumanparticipantswereinaccordancewiththeethicalstandardsoftheinstitutionaland/ornationalresearchcommittee(s)andwiththeHelsinkiDeclaration(asrevisedin2013).Writteninformedconsentwasobtainedfromthepatientforpublicationofthismanuscriptandanyaccompanyingimages. OpenAccessStatement:ThisisanOpenAccessarticledistributedinaccordancewiththeCreativeCommonsAttribution-NonCommercial-NoDerivs4.0InternationalLicense(CCBY-NC-ND4.0),whichpermitsthenon-commercialreplicationanddistributionofthearticlewiththestrictprovisothatnochangesoreditsaremadeandtheoriginalworkisproperlycited(includinglinkstoboththeformalpublicationthroughtherelevantDOIandthelicense).See:https://creativecommons.org/licenses/by-nc-nd/4.0/. 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