概括
这项研究使用心脏成像来量化儿科 mitra 缺陷. 结膜整形手术显著改善了心脏功能,可以纠正心脏状况.
科学领域:
- 儿童心脏病学 儿童心脏病学
- 心血管成像 - 心血管成像
- 心脏外科手术 心脏外科手术
背景情况:
- 在儿童中孤立的额头肌缺陷需要准确的量化.
- 了解对心室和压力的影响至关重要.
研究的目的:
- 用血管学方法量化儿童中孤立的额头肌缺陷.
- 评估心肌缺陷对心室大小和伸展能力的影响.
- 评估结婚整形术在治疗儿科 mitra 不足症中的疗效.
主要方法:
- 定量血管造影比较右和左心室中风体积.
- 评估左心房和左心室扩大.
- 测量左心房延展性的测量.
- 对心脏右和左压力的分析.
- 评估前和后的血液动力学.
主要成果:
- mitra 不足导致左心房比左心室扩大更大.
- 观察到左心房张张力的显著增加.
- 在患有超过50%的反分数的患者中,注意到心脏压力升高.
- 造术显示出明显的临床和血液动力学改善.
结论:
- 定量血管造影是有效的评估儿科 mitra 不足.
- 中心缺陷显著改变了左心房力学.
- 造术是一种高度有效的治疗方法,有可能对儿科 mitra 不足进行校正.
相关概念视频
01:29Blood Flow
Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow.
01:07Development 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...
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...