相关实验视频
Updated: Jun 28, 2026

11:21
Robotic Ablation of Atrial Fibrillation
Published on: May 29, 2015
19.6K
对于心房动进行脉冲场切除的全国工作流体验:学习曲线,效率和安全性
Antonio Bisignani1, Marco Schiavone2, Francesco Solimene3,4
1Center of Excellence in Cardiovascular Sciences, Ospedale Isola Tiberina - Gemelli Isola, Via di Ponte Quattro Capi 39, 00186, Rome, Italy. abisignani@hotmail.it.
概括
对心房动 (AF) 进行脉冲场切除 (PFA) 是一种快速,安全和有效的程序. 对于PFA来说,学习曲线是快速的,在早期观察到的程序时间的显著改善.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 医疗器械 医疗器械
背景情况:
- 脉冲场切除 (PFA) 正在成为心房动 (AF) 的新疗法.
- 关于PFA学习曲线及其对临床结果的影响的现实数据有限.
- 了解PFA学习曲线对于广泛采用和优化患者护理至关重要.
研究的目的:
- 评估与FARAPULSETM PFA系统相关的学习曲线,用于AF切除.
- 评估PFA学习曲线对急性程序结果的影响.
- 将PFA手术时间与历史射频 (RF) 和冷 (CB) 数据进行比较.
主要方法:
- 一项前性,非随机的多中心研究包括了752名通过FARAPULSETM PFA系统进行AF切除的患者.
- 根据操作员的经验 (学习曲线) 分析了程序时间.
- 皮肤与皮肤的时间与以前的射频和冷却肺静脉隔离 (PVI) 程序进行了比较.
主要成果:
- 在操作人员完成大约10个PFA程序后,程序时间,包括PVI和光镜时间的时间,显著改善.
- 一个一致的线性趋势显示程序时间缩短 (R2 0.92-0.68).
- 在62.4%的病例中,PFA皮肤接触时间比历史方法短,没有报告重大并发症.
结论:
- 在FARAPULSETM PFA系统是快速的,安全的,和急性有效的两种偏激和持久的AF.
- 对于PFA来说,学习曲线很快,在有限数量的案件后,程序效率得到了明显的改善.
- PFA 代表了 AF 切除技术的有前途的进步.
更多相关视频
相关概念视频
Blood 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.
Energy Line and Hydraulic Gradient Line
Based on Bernoulli's equation, the energy line (EL) and hydraulic grade line (HGL) provide graphical representations of energy distribution in a fluid flow system. For steady, incompressible, inviscid flows, Bernoulli's equation is expressed as:
Applications of Integration to Find Blood Flow
Blood flow through a cylindrical blood vessel can be mathematically described using the principles of laminar flow, a regime in which fluid moves smoothly in parallel layers. In this model, the velocity of the blood is not uniform across the cross-section of the vessel; rather, it varies with the radial distance from the center. The maximum velocity occurs along the central axis, decreasing progressively toward the vessel walls, where it reaches zero due to viscous drag.Approximating Blood...

