Cardiovascular adaptation to pregnancy: the role of
describe>mongaaltered vascular structure
期刊名称： Fetal & Maternal Medicine Review
豁亮年份： 2000年shij
期号： 第3期golo
stimulate摘要：The cardiovascular system undergoes remarkable adaptive changes in pregnancy. Through a complex network of interrelated pathways the physiological respon to the conceptus ensures an adequate blood supply and oxygen gradient
美国留学签证费用涨了>athleteto meet the demands of the feto-placental unit whilst maintaining normal maternal blood pressure. This is achievable becau the increa in maternal cardiac output and blood volume which characteri normal pregnancy occur with an associated
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and profound decrea in peripheral vascular resistance. Longitudinal studies using Doppler ultrasound and echocardiography indicate that the decline in peripheral vascular resistance occurs very early and data from the pregnant baboon and pregnant women suggest that this is the stimulus which activates the renin-angiotensin aldosterone axis and the resultant ri
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