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ID:15499833
大小:411.50 KB
页数:50页
时间:2018-08-03
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1、徐运孝内科学多媒体教案HEMOLYTICANEMIAS一、GeneralInformation●HbStructure●DefinitionofHemolyticAnemias1、HbStructureHbA(22)HbA2(22)HbF(22)ProtoporphyrinHematinHbFe2Haptoglobinnon-22、DefinitionofHemolyticAnemiasHemolyticanemiaisonekindofanemiainwhichthedestructionofredcellisincreasedwhilethecompe
2、nsatoryfunctionofmarrowhematopoisisisinsufficient。HemolyticdisordersHemolyticjaundice二、ClassificationandPathogenesis1、Hemolyticsites:ExtravascularhemolysisIntravascularhemolysisHemolysisinsitu2、HereditaryTendency:HereditaryAcquired3、PathogenesisIntrinsicabnormitiesofredcells:redcellmemb
3、ranedisorders;enzymedefects;hereditaryHbdisease.Extrinsicabnormitiesofredcells:Immune;Physicalandmechanical;chemical;infections。三、ClinicalManifestationsacutechronicsitecommonlyintravascularcommonlyextravascularsymptomheadache,vomitting,chillsfever,fatigue,backachephysicalexaminationjaundi
4、ceenlargementofliverandspleencomplicationheartfailure,renalfailure,shockliverfunctiondeficiencythrombosisbilestone四、Diagnosis(一)Dominantevidenceofdiagnosis1、Clinicalmanifestationsofhemolyticanemia2、Laboratoryexaminationsshowthelifespanofredcellsisshortenedandthedestructionofredcellsisexce
5、ssive.3、Significantincreaseofnormoblasthyperplasiainbonemarrow(二)Distinguishwhetherthereishemolyticanemiaornot1、Evidenceofexcessivedestructionofredcells(1)Examinationsabouttheshortenedlifespanandtheexcessivedestructionoftheredcells.(2)Evidenceoftheimprovedfreehemoglobinlevel.(3)Examin
6、ationsabouttheabnormalmetabolismofserumbilirubin(1)examinationabouttheshortenedlifespanandexcessivedestructionoftheredcells.Thelifespanoftheredcellsisshortened.32P-DFPorH-DFPT1/215d(normal25-32d)changesofredcellmorphology:spherocyte,ellipotocyte,stomatocyte,helmetcell,sicklecell.LD
7、H2、Evidenceofcompensatoryaccelerationoferythropoiesis(2)ExaminationabouttheincreasedplasmafreehemoglobinmoderatehemolysiscombinewithHpHpsmallpartcombinewithhemopexinhemopexinfreeHbalbuminseverehemolysissomeconverttomethemoglobinmethemalbuminrenalreabsorptionep
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