高和非常高功率短期PVI的长期耐用性通过侵入性重绘:HPSD重绘研究
Nándor Szegedi1, Zoltán Salló1, Vivien Klaudia Nagy1
1Cardiology Department, Heart and Vascular Center, Semmelweis University, Budapest, Hungary.
Circulation. Arrhythmia and electrophysiology
|January 29, 2024
概括
90W的高功率短时间除 (PVI) 证明了持久的肺静脉隔离和12个月的无心生存期,类似于50W. 观察到90W的过程时间更短.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗器械 医疗器械
背景情况:
- 高功率短时间切除显示为肺静脉隔离 (PVI) 的承诺.
- 在非常高的功率设置下,最初的结果令人丧.
- 本研究评估了使用90W和50W设置的PVI的长期耐用性.
研究的目的:
- 为了比较使用90W和50W功率设置的PVI的长期耐用性.
- 为了评估心房的复发率在手术后12个月.
- 评估程序的效率和安全.
主要方法:
- 患者被随机分配到使用QDOT导管的90W或50W功率设置的PVI.
- 在3个月后进行了重复的电生理学研究,以评估肺静脉重新连接.
- 对患者进行了12个月的随访,以确定心房的复发.
主要成果:
- 在90W和50W组之间,持久PVI率 (92%与88%) 或12个月无心房的存活率没有显著差异.
- 程序,左心房停留时间和射频时间在90W时较短.
- 没有报告任何并发症,急性重新连接率相似.
结论:
- 90W和50W功率设置都能实现相似的持久PVI和无心律失常的生存.
- 90W提供比50W更短的程序时间.
- 需要进行更大规模的研究来确认高功率设置的安全性和长期疗效.
相关概念视频
Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when presynaptic neurons...
Hebbian LTP
LTP can occur when presynaptic neurons...


