Guo Xingming, Ding X, Lei M, Xie M, Zhong L, Xiao S
Chongqing University College of Bioengineering, Chongqing, China.
Acta Physiol Hung. 2012 Dec;99(4):382-91. doi: 10.1556/APhysiol.99.2012.4.2.
This paper proposed a relative value method for measuring the indicators of cardiac reserve and investigated the application on monitoring and evaluating cardiac function for pregnant women. A heart sound sensor is placed at the precordial region to detect phonocardiogram. In order to access the cardiac reserve mobilization level during pregnancy, the cardiac reserve indicators of 1,683 normal pregnant women, 96 abnormal cases with different obstetric complications and 624 non-pregnant women were measured, analyzed and compared. The result shows that the differences between the indicators of pregnant and non-pregnant women were significant (p < 0.05). The ratio of diastolic to systolic duration (D/S) was obviously declined with the increase of gestational weeks and the occurrence of obstetric complication. This very encouraging result indicates that the D/S can be used as an indicator for evaluating the cardiac safety of parturition, which provides a reference for cardiac safety assessment of pregnant women.
本文提出了一种测量心脏储备指标的相对值方法，并研究了其在监测和评估孕妇心功能方面的应用。将心音传感器置于心前区以检测心音图。为了了解孕期心脏储备动员水平，对1683例正常孕妇、96例患有不同产科并发症的异常病例和624例非孕妇的心脏储备指标进行了测量、分析和比较。结果表明，孕妇和非孕妇指标之间的差异具有显著性（p<0.05）。舒张期与收缩期时长之比（D/S）随着孕周增加和产科并发症的出现而明显下降。这一非常令人鼓舞的结果表明，D/S可作为评估分娩心脏安全性的指标，为孕妇心脏安全性评估提供了参考。
