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移除诱导的左心房机械功能障碍在移除后的几周内恢复
Jiawei Dong1,2,3, Eugene Kwan1,2,3, Jake A Bergquist1,2,4
1Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA.
概括
导管切除在手术后立即显著降低左心房机械功能. 然而,功能在10天内恢复,阳发作和持续性心房动 (AF) 类型之间没有实质性的差异.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 电子生理学 电子生理学
背景情况:
- 导管切除对左心房机械功能的直接影响及其在心房患者的恢复时间表尚不清楚.
- 不同类型的AF中心房机械功能对导管切除的反应需要进一步研究.
研究的目的:
- 评估导管切除对左心房机械功能的直接影响.
- 为了确定左心房机械功能的康复时间表,在去除后.
- 为了比较消去对机械功能的影响,帕洛克斯和持久性AF患者之间.
主要方法:
- 追溯研究包括113名AF患者.
- 每个患者进行了三项心脏磁共振成像 (MRI) 研究:取消前,取消后立即 (2天内) 和随访 (≤3个月).
- 对MRI电影图像进行特征追踪分析,以量化峰值纵向心房应变 (PLAS).
主要成果:
- 与去除前和随访水平相比,PLAS在去除后立即显著下降.
- 通过PLAS测量的左心房机械功能,在10天内恢复到95%的剥离前水平.
- 虽然在放弃前的PLAS在帕洛西斯马性AF患者中较高,但在放弃后立即减少的PLAS在帕洛西斯马性和持久性AF类型中是相似的.
结论:
- 导管切除导致左心房机械功能 (PLAS) 显著但暂时下降.
- 左心房的机械功能恢复得非常快,在剥离后的10天内.
- 移除左心房的直接功能影响在阳性和持久性AF患者之间是可比的.
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