跨导管心脏膜的变形:临床影响和考虑
Miho Fukui1, João L Cavalcante2, Vinayak N Bapat2
1Minneapolis Heart Institute Foundation, Minneapolis, MN, USA.
Journal of cardiology
|March 3, 2024
概括
透气管心脏门 (THV) 在植入后可能变形,影响血液动力学和耐用性. 本综述探讨了THV变形,其后果,以及减缓策略,以改善患者的治疗结果.
科学领域:
- 心血管医学 心血管医学
- 生物医学工程 生物医学工程
- 干预心脏病学 干预心脏病学
背景情况:
- 过导管大动脉置换 (TAVR) 是大动脉狭窄的关键治疗方法.
- 过导管心脏门 (THV) 也用于在多个心脏位置失败的生物假体门和戒指.
- THVs依赖于超大尺寸的固,与手术植入的门不同.
研究的目的:
- 审查植入后THV变形的程度和影响.
- 分析变形模式及其对传单功能和门耐用性的影响.
- 讨论在手术过程中减轻THV变形的策略.
主要方法:
- 对THV变形研究的文献综述.
- 分析影响THV植入后几何学的因素.
- 检查与THV变形相关的临床结果.
主要成果:
- 由于患者特定的因素,THV变形 (不扩张,偏心扩张,垂直变形) 可能发生.
- 变形增加了叶片的压力和应变,可能导致疲劳和退化.
- 变形与低衰减叶片加厚和结构退化有关.
结论:
- THV变形对门的血液动力学,耐用性和患者的结果构成风险.
- 了解变形模式对于优化THV性能至关重要.
- 制定减轻变形的策略对于改进跨导管干预措施至关重要.
相关概念视频
01:16Heart Valves
4.6K
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
4.6K
01:20Imaging Studies for Cardiovascular System III: X-Ray
188
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
188