Hyacinth Science pregnant mothers heart load, you can OK Sohu –shuyue

Hyacinth Science: pregnant mothers heart load, you can OK? A series of changes have taken place in the body of the mother and daughter of the Sohu during pregnancy, and the burden of the heart will increase. What is it, and how should we respond? First we look at the heart and circulatory changes during pregnancy, features: 1, heart during pregnancy, the uterus will increase the diaphragm to push forward and upward displacement and left heart, accompanied by vascular distortion, and cardiac hypertrophy, cardiac volume increased, blood volume increased, blood flow speed, thus increasing the boundaries of heart, the heart along the longitudinal axis clockwise twist, the mobile apex position to the left. 2, cardiac output cardiac output increase is one of the most important changes during pregnancy, during pregnancy and increased heart rate and increased blood volume and peripheral vascular resistance decreased, resulting in increased cardiac output, cardiac output 8~10 weeks gestation increases gradually, reached the peak at 32~34 weeks, each time the average value of cardiac output 80ml, until parturition, supine left cardiac output increased by about 30% than the non pregnant. 3, blood volume began to increase from 6~8 weeks pregnant maternal blood volume, pregnant 32~34 weeks to reach the peak, increased by about 40%~45%, the average increase of 1450ml, the increase of 1000ml plasma and red blood cell increment is about 450ml, the increase of plasma than red blood cells, blood relative dilution, due to hemodilution, concentration and concentration of red blood cells hemoglobin are relatively lower, anemia, iron deficiency anemia belongs to, but will also increase the burden on the heart. 4, the blood pressure in the early and mid trimester of pregnancy is low, after 24~26 weeks of pregnancy blood pressure slightly increased, pulse pressure slightly increased. Maternal position affects blood pressure, supine position when the inferior vena cava compression, return to the heart to reduce the amount of cardiac output, coupled with the vagus nerve excited at this time, so that blood pressure drops, the formation of supine hypotensive syndrome. The femoral venous pressure increased with the progress of pregnancy, pregnant women prone to lower extremity, vulvar varices and hemorrhoids. Note that based on some physiological changes during pregnancy, pregnancy is actually a major test of the heart, so for the presence of heart disease pregnant mothers need further evaluation to determine whether it is suitable for pregnancy. At this time the need for classification of cardiac function assessment: I general physical activity is not restricted. II general physical activity slightly restricted activity after mild heart palpitations, shortness of breath, rest without symptoms. III general physical activity is significantly limited, rest is not suitable for all the time, mild daily activities that are feeling discomfort, palpitations, dyspnea, or past history of heart failure. IV level can not carry out any physical activity, rest, palpitations, dyspnea and other manifestations of heart failure. Since the burden of pregnancy to the heart is so big, there is doubt: 1 mothers and the lower down for mothers, what kind of person can be pregnant? Heart disease before pregnancy is light, NYHA class I-II, previous history of heart failure, no other complications of pregnancy, after a lot of care can be tolerated during pregnancy and childbirth. 2, what kind of people can not pregnancy!相关的主题文章: