Crepaz R, Gentili L, Taddei F, Romeo C, Pitscheider W
Divisione di Cardiologia, di Pediatria, Ospedale Generale Regionale di Bolzano.
G Ital Cardiol. 1998 Feb;28(2):187-92.
The advent of fetal echocardiography combined with Doppler technology gave the clinicians the possibility to evaluate and clarify the main aspects of fetal and postnatal circulatory physiology. From the end of cardiogenesis to the end of gestation the developmental changes of the fetal myocardial structure, ventricular function and circulatory physiology have all been studied. Also the physiological features of the transitional circulation in the first postnatal period, as well as the developmental changes in the morphology and function of the neonatal ventricles can be assessed by Doppler echocardiography. This review is divided in two parts. In the first one we will briefly discuss the contractile properties of the fetal myocardium, the cardiac performance and dynamics of the fetal circulation; in the second one we will consider the physiological aspects of the transitional circulation, the structural features of the immature neonatal myocardium, as well as the developmental changes of the myocardial mechanics as shown by Doppler ultrasound.
胎儿超声心动图与多普勒技术的出现，使临床医生有机会评估并阐明胎儿及出生后循环生理学的主要方面。从心脏发生结束到妊娠末期，胎儿心肌结构、心室功能和循环生理学的发育变化均已得到研究。此外，出生后第一阶段过渡循环的生理特征，以及新生儿心室形态和功能的发育变化，均可通过多普勒超声心动图进行评估。本综述分为两部分。第一部分我们将简要讨论胎儿心肌的收缩特性、胎儿循环的心脏功能及动力学；第二部分我们将探讨过渡循环的生理方面、未成熟新生儿心肌的结构特征，以及多普勒超声显示的心肌力学的发育变化。
