Porto Italo, Larosa Claudio, Niccoli Giampaolo, Leone Antonio M, Burzotta Francesco, Testa Luca, Van Gaal William, Lanza Gaetano A, Crea Filippo
Department of Cardiovascular Medicine, Catholic University of the Sacred Heart, Rome, Italy.
J Cardiovasc Med (Hagerstown). 2008 Dec;9(12):1222-8. doi: 10.2459/JCM.0b013e32830fe706.
Guidewires used during percutaneous coronary interventions have elevated conductance, and, when in place, are electrically isolated from the body fluids by the guiding catheter. In this paper, we present an overview of two simple techniques exploiting these unique conditions to record local electrical activity in the myocardium and to pace the heart. Both actions can be accomplished with standard catheterization laboratory equipment. The operator may obtain useful, real-time information on distal ischemia and/or vitality and react quickly when an emergency pacing is required. The technical details of these techniques are elucidated and their usefulness as clinical and research tools is discussed, with an emphasis on possible future applications.
经皮冠状动脉介入治疗中使用的导丝具有较高的导电性，且在就位时通过引导导管与体液实现电隔离。在本文中，我们概述了两种利用这些独特条件来记录心肌局部电活动和进行心脏起搏的简单技术。这两种操作均可通过标准的心导管室设备完成。操作人员可以获得有关远端缺血和/或活力的有用实时信息，并在需要紧急起搏时迅速做出反应。本文阐述了这些技术的技术细节，并讨论了它们作为临床和研究工具的实用性，重点是可能的未来应用。
