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目的应用超声心动图分析孕期体质量变化对正常孕期妇女心脏结构及功能影响。方法选择医院产科门诊正常初孕妇女120例,根据怀孕期间体质量变化程度分为增重不足组、增重适宜组及增重过多组各40例,3组患者进行心脏超声心动图检查。比较不同体质量变化组孕期妇女的心脏超声结构及功能参数:左心室舒张末期内径(LVEDd)、左心室收缩末期内径(LVEDs)、左心室射血分数(LVEF)、左心房内径(LAD)、二尖瓣舒张早期充盈速度/二尖瓣舒张晚期充盈速度(E/A)、二尖瓣舒张早期充盈速度/心肌舒张早期速度峰值(E/Ea),分析体质量的变化对孕期妇女心脏结构及功能影响。结果增重过多组孕妇超声参数LVEDd、LVEDs、LAD、E/Ea均大于增重适宜组,LVEF、E/A值小于增重适宜组,差异均有统计学意义(P<0.05);增重不足组与增重适宜组比较,LVEDd、LVEDs、LVEF、LAD、E/Ea差异无统计学意义(P>0.05),但增重不足组E/A值大于增重适宜组,差异有统计学意义(P<0.05)。结论正常妊娠妇女心脏结构及功能负荷随着体质量的变化而不同,孕期体质量变化过大,增加心脏负荷及影响心脏正常结构,其中心脏舒张功能影响较明显。
Objective To analyze the effects of changes in body mass during pregnancy on cardiac structure and function in normal pregnant women with echocardiography. Methods 120 cases of normal pregnant women were selected from obstetrics and gynecology clinic of our hospital. According to the change of body weight during pregnancy, 40 cases were divided into three groups according to their weight gain, weight gain and excess weight. Echocardiography was performed in 3 groups. The changes of left ventricular end-diastolic diameter (LVEDd), left ventricular end-diastolic dimension (LVD), left ventricular ejection fraction (LVEF), left atrium diameter (LAD) Mitral early diastolic filling velocity / late mitral diastolic filling velocity (E / A), mitral early diastolic filling velocity / early diastolic velocity peak (E / Ea), analysis of body weight changes of pregnant women, cardiac structure And functional impact. Results The results showed that the ultrasonographic parameters LVEDd, LVEDs, LAD and E / Ea of pregnant women with overweight were significantly higher than the appropriate weight gain group, LVEF and E / A values were less than those of appropriate weight gain group (P <0.05) There was no significant difference in LVEDd, LVEDs, LVEF, LAD and E / Ea between the underweight group and the weight gain group (P> 0.05), but the E / A value of underweight group was higher than that of the weight gain group Significance (P <0.05). Conclusion The heart structure and functional load of normal pregnant women vary with body weight. Excessive weight changes during pregnancy increase cardiac load and affect the normal structure of heart. The diastolic function of cardiac function is more obvious.