Definition Placenta previa: Abnormal location- of the placenta over,orin close proximity to the internal os. Incidence: approximately 1 /250 pregnancy nulliparas: 1/1000~1/1500 pregnancy grandmultiparas: 1/20

女性生殖系统解剖 第一节骨盆 (一)骨盆的组成 1.骨盆的骨骼 2.骨盆的关节 3.骨盆的韧带

Pregnancy-induced Hypertension syndrome (Hypertensive disorders complicating pregnancy) Professor of obstetrics and gynecology

Physiological Stages Neonatal period: birth---4 weeks Childhood: 4 weeks----12 years Puberty:12 years----18 years Sexual maturation: 18 year-=-50 year Perimenopause: decline of ovarian function(40 years)---1year postmenopause Postmenopause:

General considerations Definition In placenta previa, the placenta is implanted in the lower uterine segment and located over the internal os. It constitutes an obstruction of descent of the presenting part. Main cause of obstetrical hemorrhage Incidence 0.24%-1.57% (our country)

Definition of AFE AFE is rare obstetric emergenc in which amniotic fluid, fetal cells, hair, or other debris enter the maternal circulation, causing cardiorespiratory collapse

General Consideration Antenatal cardiovascular changes Blood volume increase by 40%-60%0 Peaking at 32-34 weeks the expansion in plasma volume is greater than that expansion of red cell mass Cardiac output Increase by 40%6-50% Peaking at 20-24 weeks

胎盘早剥 Obstetrics is\bloody business Even though the maternal mortality rate has been reduced dramatically by hospitalization for delivery and the availability of blood for transfusion, death from hemorrhage remains prominent in the majority reports From willams obstetrics

Introduction to Process Engineering From Chemical Engineering to Process Engineering? Raw materials

8.1物流信息管理概述 一、物流信息的含义 二、物流信息特点 三、流信息化的内容 四、物流信息管理的原则