肠系膜上静脉血栓形成SuperiorMesentericVenousThrombosis(SMVT)Date1消化内科GeneralviewsThrombosisistheformationofaclotorthrombusinsideabloodvesselInjurytothevessel'swall(trauma,infection,scleroticlesion)(icdeficienciesorautoimmunedisorders,DM,tumor).Date2消化内科Classification2distinctformsVenousthrombosisDeepvenousthrombosis(withorwithoutpulmonaryembolism)Portalveinthrombosis(SMV,IMV)RenalveinthrombosisHepaticveinthrombosis(Budd-Chiarisyndrome)Paget-Schroetterdisease(upperextremityvein)CerebralvenoussinusthrombosisThoracicoutletsyndrome(SubclavianVeinThrombosisunrelatedtotrauma)ArterialthrombosisDate3消化内科2distinctformsVenousthrombosisArterialthrombosisStroke(eitherthromboticorembolic)Myocardialinfarction(usuallycoronarythrombosisduetoruptureofanatheroscleroticplaque)Thoracicoutletsyndrome(mayprecipitatearterialthrombosisaswellasvenous)Date4消化内科肠系膜上静脉(SMV)血栓形成是指沿SMV主干的血栓形成及其蔓延,这是一种临床上较少见的急腹症。绝大部分病例仅靠剖腹探查得以明确诊断,病死率高达20%~50%。原发或继发性肠系膜上静脉血栓约占肠系膜静脉血栓95%,约占肠道缺血事件中5-15%。Date5消化内科IMVSplenicveinSMVPVThepancreasandduodenumfrombehindDate6消化内科Date7消化内科经胰钩突层面(CT增强扫描)(箭头所示))Date8消化内科经肠系膜上动脉层面(CT增强扫描)(箭头所示)
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