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目的探讨不同孕期的孕妇心脏储备功能的变化情况及影响孕妇心脏储备功能的因素。方法将126例健康孕妇根据孕期不同分为早期组、中期组、晚期组,同时选择65例育龄期未孕健康妇女作为对照组。对所有研究对象的心脏储备功能进行监测。结果未孕妇女的S1/S2值明显低于正常孕妇(P<0.05),D/S值明显高于正常孕妇(P<0.05),HR明显慢于正常孕妇(P<0.05)。随着孕龄的增加,孕妇的S1/S2值明显升高(P<0.05),D/S值明显降低(P<0.05),HR明显加快(P<0.05)。孕妇的年龄越小,孕次越少,教育程度越高,孕妇的心脏储备功能越好(P<0.05);无贫血孕妇的心脏储备功能明显优于有贫血孕妇(P<0.05);不同居住地的孕妇间的心脏储备功能无统计学差异(P>0.05)。结论随着孕周的增加,孕妇的心脏储备功能会逐渐下降,孕周的增加和孕次的增加是孕妇心脏储备功能下降的主要影响因素。
Objective To investigate the changes of cardiac reserve function in pregnant women during different stages of pregnancy and the factors influencing cardiac reserve function in pregnant women. Methods 126 healthy pregnant women were divided into early group, middle group and advanced group according to their different gestational ages. At the same time, 65 healthy pregnant women of childbearing age were selected as control group. Cardiac reserve function was monitored in all subjects. Results The S1 / S2 value of non-pregnant women was significantly lower than that of normal pregnant women (P <0.05), D / S was significantly higher than that of normal pregnant women (P <0.05), HR was significantly slower than that of normal pregnant women (P <0.05). With the increase of gestational age, the S1 / S2 value of pregnant women was significantly increased (P <0.05), D / S value was significantly lower (P <0.05), HR significantly faster (P <0.05). The younger the pregnant women, the less the pregnant times, the higher the education level, the better the heart reserve function of pregnant women (P <0.05); the heart reserve function of anemia-less pregnant women was better than that of pregnant women with anemia (P <0.05) There was no significant difference in cardiac reserve between pregnant women (P> 0.05). Conclusion With the increase of gestational age, the function of heart reserve of pregnant women will gradually decline. The increase of gestational age and the increase of pregnant time are the main factors that affect the decline of cardiac reserve function in pregnant women.