Cardiac output, peak systolic velocity of the outflow tracts, and cardiac compliance showed a gradual reduction with diminished fetal growth, whereas intraventricular pressure gradually increased.

• 心输出量，心脏收缩期流出道的速度峰值，以及心室顺应性随胎儿发育迟缓亦呈现逐渐下降，而心室内压逐渐增加。