1、经腔静脉经腔静脉- -主动脉入路主动脉入路TAVR1ppt课件33.5%Transfemoral62.6%手术入路手术入路Transaortic 3.6%Subclavian 0.3%Transapical2ppt课件手术入路手术入路1、股动脉入路常常需要18F-22F鞘管，术后易出现血管并发症，且髂动脉严重钙化迂曲、血管直径过小或者合并外周动脉疾病者存在禁忌。2、包括经心尖在内的经胸腔入路，术后恢复慢，且伴随更多的术后并发症。3ppt课件非股动脉入路的其他入路非股动脉入路的其他入路CarotiddirectaortictransapicalIliac-aorticconduitsTransc
2、avalsubclavian/Percutaneous axillaryNewer-ExtrathoracicHistorical-Intrathoracic4ppt课件5ppt课件2013年7月3日，在美国底特律Henry Ford医院，Dr. Lederman和Dr. Greenbaum以及他们的同事们，采用该术式为一位80岁女性患者成功进行了TAVR。术前，其他介入路径，如经股动脉、经心尖、经锁骨下等在这位患者身上均尝试失败，因此手术团队决定实施首例人类腔静脉-主动脉路径TAVR手术，手术获得了成功。6ppt课件经腔静脉经腔静脉- -主动脉路径主动脉路径TAVRTAVRProcedure
3、 schematicA: Cross from IVC through calcium-freewindow into prepositioned aortic snareB: Exchange for rigid guidewireC: Deliver sheath and TAVRD: Close with nitinol occluderProposed physiologyRetroperitoneal space pressure is higher than vein.Aortic bleeding decompresses through a hole in IVCinto va
4、sculature7ppt课件Recommendation(CA-TAVReligibility)Favorable;Uncertain;Unfavorable2+AorticCa/thickening/ectasiaAorticcalciumgrade2TargetentrysitelumbarvertebraMidBodyL3(L3.0)OrthogonalprojectionAPCaval-aorticdistanceX-Y6mm(including1mmnon-calcifiedatheroma)InterposedstructuresnoneNearbystructuresBowel
5、anteriortotargetCavallumendiameter23mmAorticlumendiameter(+3/0/-1.2cm)15mm/16mm/14mmTargetdistanceaboveaorto-iliacbifurcation12mmTargetdistancebelowRrenalartery75mmEndograftbailoutlimbaccessRCIA5.2mm,LCIA3.0mmCFVtotargetcenterlinedistance24cmCaveat&Comments15x20mmtargetwindowLiesflatontheCTscanner?Y
6、esReviewersNHLBIMChenread.2014-xx-xxSTEPSTEP #1#1 ObtainObtain CT-basedCT-based TreatmentTreatment PlanPlanLederman, JACC Imaging, 2014Marcus Chen, NHLBI Core Lab8ppt课件STEP #2 STEP #2 Simultaneous Aortic and IVC AngiographySimultaneous Aortic and IVC AngiographyPower inject artery below SMA (10ml fo
7、r 1 sec)Hand-inject vein simultaneously9ppt课件STEP #3 - Prepare Crossing SystemSTEP #3 - Prepare Crossing System0.014”guidewire0.014” to0.035” wireconvertor0.035”microcatheterBack end of0.014”guidewireElectrosurgerypencilCOAXIAL Confienza amputated tip,inside aPiggyback wire convertor,inside aNavicro
8、ss braided 0.035microcatheter, to deliverlater Lunderquist(or)2x20mm Advance Micro14 tibial balloon inside a0.035 CXI support catheterELECTROSURGERYNo short circuitsGround pad withoutinterposed metallic hips &pacemakers50W “cutting” modeAdvance Micro 142.9F ID compatible0.035” CXI support catheter10
9、ppt课件AoIVCSTEP #4 STEP #4 Align Guiding Catheter in Orthogonal ViewsAlign Guiding Catheter in Orthogonal ViewsIn lateral projection, fine-tuneorientation away from bowel orcalcium as neededWire tipPiggyback tipDuodenumNavicross tipDifferent patient11ppt课件If it doesnt cross13Like thisNot like thisSTE
10、P #5 - CrossingSTEP #5 - CrossingYour target may be too calcific: re-position or re-orientYour guidewire tip may not be conducting current:Disconnected, charred, short-circuited, etc.Only attempt for about 1sec12ppt课件STEP #6 - Snaring and STEP #6 - Snaring and AdvancingAdvancingasp ic positionAdvanc
11、e in tandem withtraversal wire & wire convertor13ppt课件STEP #7 - Sheath InsertionSTEP #7 - Sheath InsertionHemostasis is universalSide arm up forEdwards eSheathAdvance sheath in one step14ppt课件Sheath18FrID7mm10/8AmplatzerDuctOccludergeneration18/6AmplatzerDuctOccludergeneration1STEP #8 Select a Closu
12、re DeviceSTEP #8 Select a Closure DeviceCurrent Closure Device Algorithm15ppt课件Place buddy wireInsert deflectable sheathPassively expose aortic discPosition pigtailWithdraw and deflect sheath tocrossing pointWithdraw TAVI sheath into IVCAdvance pigtail cephalad & testRetract disc onto R aortic wallS
13、traighten Agilis during withdrawalthrough tract into cavaPull Amplatzer cable to reachcava, then push cable to re-formvenous sideSTEP STEP # # 9 - Closure9 - Closure16ppt课件Review angio beforerelease cable and buddywireIf bleeding Consider balloon aortictamponade Consider endograftClose venous access
14、 siteand wait 10 minutesRepeat angiogramSTEP #10 Completion AngiographySTEP #10 Completion Angiography17ppt课件PatternsPatterns ofof CompletionCompletion AngiographyAngiographyN=16Complete occlusionN=16Caval-aortic fistula withlong tunnel,no extravasationN=42Caval-aortic fistula +“cruciform” extra-aor
15、ticcontrastN=5Extravasation(Endograft 7 hrs. later)Type 0Type 1Type 2Type 3MostcommonpatternOf 79 cases18ppt课件残余动静脉分流的转归残余动静脉分流的转归19ppt课件TranscavalTranscaval AccessAccess forfor TAVRTAVR IDEIDE RegistryRegistryNIH sponsored - site monitoring, DSMB oversight, CEC adjudication ofprimary and secondary
16、endpoints20 sites, 100 patient, nonrandomized prospective registry; concomitantretrospective registry of all known casesPrimary endpoint: “device success” successful transcaval access andclosure without death related to access or closureEnrollment began 10/201499/100 patients enrolled20ppt课件CenterHe
17、nry Ford Hospital1Detroit, MITotal79IDE37Angiografia de Occidente2Cali, Colombia15Detroit Medical CenterDetroit, MI3Spectrum HealthGrand Rapids, MI1Emory UniversityAtlanta, GA2516University of UtahSalt Lake City, UT2Oklahoma HeartTulsa, OK118Brigham and WomensBoston, MA1Columbia UniversityNew York,
18、NY21IDECenterGerman Heart CenterMunich, GETotal3Wake Forest Baptist HealthWinston Salem, NC74Good SamaritanCincinnati, OH3Edward HospitalNaperville, IL54Cleveland Clinic FoundationCleveland, OH3University of VirginiaCharlottesville, VA71York HospitalYork, PA33Toledo HospitalToledo, OH31Vanderbilt Un
19、iversityNashville, TN53CenterSt. Vincents HospitalIndianapolis, INTotal2IDE2Instituto Dante Pazzanese deCardiologia, Sao Paulo, BR1Terrebone HospitalHouma, LA21Lexington Medical CenterColombia, SC76Washington Hospital CenterWashington, DC11Ochsner Medical CenterNew Orleans, LA77London Health Science
20、s CtrLondon, ON1Carilion Medical CenterRoanoke, VA22Evanston HospitalChicago, IL22Total21499Worldwide TranscavalTAVI ExperienceStatus as of 2016Bold: independently performing21ppt课件Conclusions: Transcaval TAVR Transcaval access enabled TAVR in patients ineligible fortransfemoral access and at high o
21、r prohibitive risk oftransthoracic (transapical or transaortic) access Independently-adjudicated bleeding and vascular complicationswere acceptable in this high risk cohort. Compared with lower-risk patients in PARTNER-II, transcavalbleeding was greater than femoral-artery but less thantransthoracic
22、 access Transcaval access and closure should be investigated in patientswho otherwise might undergo transthoracic access Purpose-built closure devices are under development that maysimplify the procedure and reduce bleeding22ppt课件TranscavalTranscaval TAVRTAVR Feasible, teachable, has now been applie
23、d to 200 pts todate but should be planned carefully; we recommendproctoring Bleeding and transfusion are now much less common andsimilar to transfemoral TAVR as is length of stay NHLBI sponsored US multicenter IDE using Amplatzerdevices is 99% completed Dedicated closure devices to achieve immediate
24、hemostasis are in development23ppt课件CavalCaval-Aortic-Aortic AccessAccess Future DirectionsFuture Directions Caval-aortic access has now been utilized for TEVAR,temporary LV assist device placement for cardiogenicshock and PCI May have a role in other trans-catheter treatments: Large devices for aortic insufficiency? Pediatric uses? Devices yet invented?ledermannih.gov24ppt课件25ppt课件谢谢您的聆听26ppt课件
