《前置胎盘英文》ppt课件

《《前置胎盘英文》ppt课件》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、PlacetalPreviaLongXiaoyu龙晓宇XuanWuHospital宣武医院Case1.30G3P2at32weeks’gestation,painlessvaginalbleeding.Fourweeksago,postcoitalvaginalspotting2.BP:110/70mmHg,abdomenissoftuterusnontender,FHR:140-150bpmCase1Whatismostlikelydiagnosis?Whatisyournextstep?Long-termmanagementoft

2、hispatient?WhatarethemostcommoncausesofAntepartumHemorrhage?COMMONCAUSESPlacentaPreviaPlacentalAbruptionPretermlaborUNCOMMONCAUSESUterineruptureFetal(chorionic)vesselruptureCervicalorvaginallacerationsCervicalorvaginallesions,includingcancerCongenitalbleedingdisorderU

3、nknown(byexclusionoftheabove)PlacentalPreviaUnderstandthatplacentapreviaandplacentalabruptionaremajorcausesofantepartumhemorrhageKnowthepainlessvaginalbleedingisconsistentwithplacentapreviaUnderstandthattheultrasoundexaminationisagoodmethodforassessingplacentallocationO

4、bjectivesDefinedastheinferioredgeofplacentaloadattheloweruterinesegment,orevenreachtheinternalcervicalosafter28weeksgestation.Incidencerate:Internal：0.24%~1.57%；International：0.5%~0.9%。PlacentalPrevia“theplacentaoverlyingtheinternalosofthecervix”ClassificationClassifica

5、tionComplete(central)placentapreviaPartialplacentapreviaMarginalplacentapreviaLow-lyingplacentapreviaWhataretheriskfactorsforplacentalPrevia?QuestionETIOLOGYIncreasedmaternalageUterinefactors:PreviousCSInstrumentationoftheuterinecavity(DandCformiscarriagesorInducedAbort

6、ions)Placentalfactors:MultiparityMultiplegestationPriorplacentapreviaETIOLOGYManifestationItcharacteristicallypresentswithunprovokedandrepeatedpainlessvaginalbleeding.ClinicalPresentationManifestationTheclassificationofpreviaplacentasometimesdeterminestheoccurrenceperio

7、dandthevolumeoflosingblood.TotalplacentapreviaEarly(20-28wks)LargeamountSeveraltimesPartialplacentapreviaBetweentotalandmarginalBleedingtimeandvolumeCentralplacentapreviaEarly(20-28wks)LargeamountSeveraltimesPartialplacentapreviaBetweentotalandmarginalMarginalplacentapr

8、eviaLate(37-40WKSorinlabor)LessbleedingsymptomSeverebloodlosingleadstoseveralshocksigns,suchaspaleness,weakand