扬州大学：《妇产科学》课程教学课件（PPT讲稿）19 产前出血 Antepartum Hemorrhage

二、PlacentaAbruptionDefinition: the premature separ-ation of a normally implantedplacenta from the uterus After20pregantweeks

二、Placenta Abruption Definition：the premature separ￾ation of a normally implanted placenta from the uterus After 20 pregant weeks

Etiology1, Local vascular injury results invascular rupture into the deciduabasalis,bleeding ,and hematomaformation。2,Mechanicalfactors3,abruptuterinecontract4、uterine venous pressure riseabruptly

Etiology 1、Local vascular injury results in vascular rupture into the decidua basalis, bleeding , and hematoma formation。 2、Mechanical factors 3、abrupt uterine contract 4、uterine venous pressure rise abruptly