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相关概念视频

Chambers of the Heart01:16

Chambers of the Heart

The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...

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肺静脉周围左心房的完全隔离:双拉索技术在动性心房的新见解.

Feifan Ouyang1, Dietmar Bänsch, Sabine Ernst

  • 1II Medizinische Abteilung, Allgemeines Krankenhaus St. Georg, Hamburg, Germany. Ouyangfeifan@aol.com.

Circulation
|October 7, 2004
PubMed
概括
此摘要是机器生成的。

肺静脉 (PVs) 周围的连续圆形病变 (CCLs) 可以消除心脏动 (PAF). 这项研究表明,3D映射和双拉索技术有效地隔离PV,减少PAF的复发.

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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:

  • 阴性心房动 (PAF) 通常用肺静脉隔离 (PVI) 来治疗.
  • 使用连续圆形病变 (CCLs) 完全隔离所有肺静脉 (PVs) 是目标,但确认隔离是具有挑战性的.
  • 在PVs中出现自动活动和心率低下表明PAF患者的心律失常基质.

研究的目的:

  • 评估3D绘图和双拉索技术的有效性,以在症状PAF的患者中实现完全的PV隔离.
  • 评估隔离后自动活动和肺静脉高心率 (PVT) 的发生率.
  • 确定PVI在消除心房动脉节律失常症的长期成功率.

主要方法:

  • 41名患有PAF症状的患者接受了3D电解剖绘图.
  • 标记了肺静脉骨,并使用拉索导管在ipsilateral上方和下方PVs中应用灌的射频能量.
  • 使用3D绘图和双拉索技术创建了连续的圆形病变 (CCL).

主要成果:

  • 在隔离后,87.8%的右侧PV和80.5%的左侧PV观察到自动活动.
  • 在手术过程中,在19名患者身上观察到肺静脉低心率 (PVT).
  • 在平均6个月的随访后,10名患者出现了复发性心房动脉节律失常症,在重复手术期间在11名患者中发现了导电缺口. 在39名患者中没有复发AF.

结论:

  • 3D映射和双拉索技术在绝大多数PAF患者中有效隔离PV.
  • 自动活动和PVT的存在表明PVI可以解决的节律失调基质.
  • 这种方法导致消除PAF复发的高成功率.