tevarforascendingaorticpathologies : tipsandtricks · •ivus-especially important for dissection...
TRANSCRIPT
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4th Aortic Live Symposium
TEVAR FOR ASCENDING AORTIC PATHOLOGIES:TIPS AND TRICKS
TengC.Lee,M.D.,F.A.C.S.AssociateProfessorofSurgery
UniversityofCalifornia,SanFrancisco
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Disclosure
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Speaker name: Teng C Lee, M.D., F.A.C.S...........................................................................................I have the following potential conflicts of interest to report:
ConsultingEmployment in industryStockholder of a healthcare companyOwner of a healthcare companyOther(s)
I do not have any potential conflict of interest
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Theangio videosandphotosshownherearecourtesyofDr.Kölbel.
Disclosure
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• TEVARinthe ascending aorta has been performed since2000and data about 119patients worldwide had beenpublished based onrecent meta-analyses.
• Mortality (2.8-5.9%)and morbidity (stroke=1.8-3.3%)seemsto be acceptable with type1endoleak rateof 16.7-18.6%.
TEVAR for Ascending Aortic Pathologies
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• 87yearoldwheelchair-boundmalewithalonghistoryofsmokingonhomeoxygen
• Presentedwithchestpainfromanursinghome• Chronicrenalinsufficiency• CTscanshowedalargesaccular aneurysmintheascendingaorta.
• High-riskforopensurgery
Case presentation
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Case presentation
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Case presentation
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• Aorticdiameterbetween16mmand44mm
• DistancebetweenSTJandinnominate(brachiocephalic)artery
6-10cm.
• Landingzones>1cmintheascendingaorta
• Entrytearmorethan1cmaboveSTJand0.5cmproximaltoinnominateartery
General Guidelines
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NBaikoussis etal.JVasc Surg 2017;AKhoynezhad etal.JVasc Surg 2016;63:1483-95
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Tips and Tricks
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• Goodimagingiscriticaltosuccess• OnlyEKG-gatedCT(1mmorlesscuts)
formeasurementanddeterminationofentrytear.
• RepeatCTifoutsideCTnotgated.• 3Dreconstruction
• TeraRecon orothersoftware• Notonlycenterlinemeasurement
butgreatercurveandlessercurve
Tip #1 Planning
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• Transfemoral• Ifdevicetooshort,canuseiliacconduit.
• TRANSAPICAL• Trans-subclavian/axillary• Trans-carotid
Tip #2 Approach
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• Shortdistancetolandingzones,betteraccuracy• Usefulforhorizontalaorta,easiertobeco-axial• Noneedtoworryaboutnose-conescausingventricularrupture
• Niceforstent-graftsthathavebare-stents• Immediatetruelumenaccessindissectioncases• Abletodrainpericardialblood• AbletodecompressheartforpatientswithsevereAI
Why TRANSAPICAL?
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• Location:5th or6th intercostalspacebutuseimagingtohelp• CT• Fluoro• TEE• VisualizeLAD
• LargeTeflonpledgets• 2-0or3-0suturesfor2horizontalmattresssuturesorpursestring• Largeneedle(MHorSH)• UseRummels• Tyingunderventricularpacing• Heparinization aftersuturesplaced• Haveanassistantholdontosheathatalltimesanddonottorquesheath
Tip #3 Transapical Approach
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• IVUS- especiallyimportantfordissectiontoconfirmtruelumenaccessandalsolocationoftears.
• TEE- Againtoconfirmtruelumenaccessandalsotocheckforvalvefunctionandpericardialeffusionaftertheprocedure.
Tip #4 Visualization
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• Forstability,thewiremustcrossthevalve.• Usepigtailtocrossthevalveorfloppytypewire(ifcomingfromfemoral).
• Iftransfemoral,usedouble-curvedLunderquist orextendedcurvedLunderquist.
• Iftransapical,woulduseregularcurvedLunderquist orAmplatzSuperstiff.NODOUBLECURVEDLUNDERQUIST.
• Atendofprocedure,makesuretoremovewireacrossvalveviaexchangecathetertopreventdamagingthevalve.
Tip #5 Must cross the aortic valve
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• Over-sizing• <10%fordissection• 20-30%forotherpathologies
Tip #6 Fixation
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• Formoreaccuratepositioning,mustachieveminimalcardiacoutput• Rapidpacing• Inflowocclusion• Pharmacologic(adenosine)
Tip #7 Positioning
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• Rate160-180• Viafemoralvein• Musthavedefibrillationpadsattachedandconnected
• VenoussheathcanalsoberapidlychangedoutforCPBcannula
Tip #8 Rapid pacing
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• EspeciallyinpatientwithsevereAI,poorventricularfunction
• Pumpneedstobeprimedor“wet”• Appropriatesizecannulae intheroomoronthetable.
Tip #9 Cardiopulmonary pump standby
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1. Planning- gatedCT/3Dreconstruction2. Approach3. Transapical4. Visualization-IVUS/TEE5. Crossingaorticvalve6. Fixation7. Positioning8. Rapidpacing9. Cardiopulmonarybypassstand-by
Summary
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QUESTIONS?
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• ItisimportanttonotethattherearenoFDAapprovedascendingdevicesintheUS.
• AliKhoynezhad andRodneyWhiteinLAhaveaPS-IDEwithamedtronic Valiantdevice.
• GoreisconductingatypeAdissectiontrialusinganascendingdevice(aorticextensionsfromtheirTBEtrial).
• CookAscenddevicewhichisavailableinEurope.
• Mostofthedevicesusedinthecaseserieswerephysicianmodifiedorusingcurrentlyavailabledescendingdevicesifthelengthsareappropriate.
TEVAR for Ascending Aortic Pathologies
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TEVAR for Ascending Aortic Pathologies
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Brand Diameter(mm)
Length(mm)
System-Length(mm)
Sheath-DiameterID(F)
CookZenith TX2ProForm 22-42 77-216 75 20-22
MedtronicValiantCaptivia
22-46 110-226 88 22-25
GoreCTAG 21-45 100-200 115 18-24
BoltonRelay 22-46 100-250 90+x 22-24
Jotec Evita3G 24-44 130-230 95 20-24