Systemic factors:nervous: drugs(magnesium sulfate,sedative): abnormal labor(prolonged,precipitous· History of previous PPH: Preeclampsia, abnormal placentation
Systemic factors: • nervous • drugs(magnesium sulfate,sedative) • abnormal labor(prolonged,precipitous) • History of previous PPH • Preeclampsia, abnormal placentation
pathology: Contraction constricting the spiralarteriespreventing the excessive bleeding fromthe placenta implantation site: the uterine atony give rise to PPHwhen no contraction occur
pathology • Contraction constricting the spiral arteries • preventing the excessive bleeding from the placenta implantation site • the uterine atony give rise to PPH when no contraction occur
Prevention and therapeutic ofuterine atonyAdministrationofmedicinepromotes contraction of the uterine corpusdecreases the likelihood of uterineatonyOxytocinagents: Methegineprostaglandin
Prevention and therapeutic of uterine atony • Administration of medicine: • promotes contraction of the uterine corpus • decreases the likelihood of uterine atony • Oxytocin agents • Methegine • prostaglandin
Mechanical stimulation of uterine contractionMassage of uterus through the abdomen andbimanual compressionintrauterine packing
• Mechanical stimulation of uterine contraction: • Massage of uterus through the abdomen and bimanual compression • intrauterine packing
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