高血压英文ppt精品课件alterations of cardiovascular

《高血压英文ppt精品课件alterations of cardiovascular 》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、AlterationsofCardiovascularFunctionChapter301DiseasesoftheArteriesandVeinsArteriosclerosisChronicdiseaseofthearterialsystemAbnormalthickeningandhardeningofthevesselwallsSmoothmusclecellsandcollagenfibersmigratetothetunicaintima2Arteriosclerosis3DiseasesoftheArteriesandVeinsAtherosclerosisFormofar

2、teriosclerosisThickeningandhardeningiscausedbyaccumulationoflipid-ladenmacrophagesinthearterialwallPlaquedevelopment4DiseasesoftheArteriesandVeinsAtherosclerosisProgressionInflammationofendotheliumCellularproliferationMacrophagemigrationLDLoxidation(foamcellformation)FattystreakFibrousplaqueCompl

3、icatedplaque5Atherosclerosis6Atherosclerosis7DiseasesoftheArteriesandVeinsHypertensionPrimaryhypertensionEssentialoridiopathichypertensionGeneticandenvironmentalfactorsAffects90%to95%ofindividualswithhypertension8PrimaryHypertension9DiseasesoftheArteriesandVeinsSecondaryhypertensionCausedbyasyste

4、micdiseaseprocessthatraisesperipheralvascularresistanceorcardiacoutputIsolatedsystolichypertensionElevationsofsystolicpressurearecausedbyincreasesincardiacoutput,totalperipheralvascularresistance,orbothComplicatedhypertensionMalignanthypertension10DiseasesoftheArteriesandVeinsComplicatedhypertens

5、ionChronichypertensivedamagetothewallsofsystemicbloodvesselsSmoothmusclecellsundergohypertrophyandhyperplasiawithfibrosisofthetunicaintimaandmediaMalignanthypertensionRapidlyprogressivehypertensionDiastolicpressureisusually>140mmHg11TreatmentforHypertension12DiseasesoftheArteriesandVeinsOrthostat

6、ic(postural)hypotensionDecreaseinbothsystolicanddiastolicbloodpressureuponstandingLackofnormalbloodpressurecompensationinresponsetogravitationalchangesonthecirculationAcuteorthostatichypotensionChronicorthostatichypotension13DiseasesoftheArteriesandVeinsAneurysmLocaldilationoroutpouchingofavessel

7、wallorcardiacchamberTrueaneurysmsFusiformaneurysmsCircumferentialaneurysmsFalseaneurysmsSaccularaneurysms14Aneurysm15Aneurysm16DiseasesoftheArteriesandVeinsThrombusformationBloodclotthatremainsattachedtothevesselwallTh