相关实验视频

Updated: May 6, 2026

Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction

Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction

Published on: June 29, 2013

肺静脉PI,心脏功能和SGA胎儿的重塑

Vandana Swami¹, Vatsla Dadhwal¹, K Aparna Sharma¹

¹Department of Obstetrics and Gynaecology, All India Institute of Medical Sciences, New Delhi, India.

Journal of obstetrics and gynaecology of India

|August 25, 2025

概括

印度胎儿的胎儿生长限制 (FGR) 与更球状的心脏 (全球球状度指数下降) 和肺静脉流量变化 (PVPI增加) 有关. 这些心脏变化可能预示着胎儿的早期损害.

科学领域:

胎儿心脏病学
周围生理学
医学成像

背景情况:

胎儿生长限制 (FGR) 对胎儿健康构成重大风险.
心脏功能和重塑是胎儿健康的关键指标.
了解FGR中的心脏变化对于及时干预至关重要.

研究的目的:

评估心肌性能指数 (MPI),全球球度指数 (GSI) 和肺静脉脉动指数 (PVPI) 的变化.
评估这些多普勒衍生指数作为印度人口中胎儿妥协的早期预测器的实用性.

主要方法:

一项前性观察性研究包括70名胎儿 (26周到期).
胎儿被分为对照组 (适当的生长) 和FGR (估计胎儿体重小于第10个百分点).
使用心声学测量PVPI,MPI和GSI,并对各组进行比较.

主要成果:

与对照组相比,患有FGR的胎儿的GSI显著下降 (心脏球形较多) (p=0. 047).
在FGR胎儿中观察到PVPI升高,表明心房动态变化 (p=0. 021).
在FGR胎儿中观察到较短的射出时间 (ET),这是MPI的一个组成部分 (p=0. 047).

结论:

胎儿生长受限与心脏重塑有关,由更球状的心脏形状 (降低GSI) 证明.
在FGR胎儿中增加的PVPI表明肺静脉流动和心房功能发生变化,可能是妥协的早期标志.
这些多普勒参数可以提供宝贵的洞察力,了解胎儿心脏状况在FGR出现更确定的痛苦迹象之前.

关键词:

多普勒超声波胎儿生长的限制全球球度指数心肌功能指数肺静脉脉动指数

更多相关视频

Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography

Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography

Published on: January 27, 2023

Author Spotlight: Establishment and Confirmation of a Postnatal Right Ventricular Volume Overload Mouse Model

Author Spotlight: Establishment and Confirmation of a Postnatal Right Ventricular Volume Overload Mouse Model

Published on: June 9, 2023

相关概念视频

Development of Blood Vessels

Development of Blood Vessels

The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...

Fetal Circulation

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...