Bunch T Jared, Day John D, Packer Douglas L
Intermountain Heart Rhythm Specialists, Intermountain Medical Center, Murray, Utah 84095, USA.
J Cardiovasc Electrophysiol. 2009 Apr;20(4):461-5. doi: 10.1111/j.1540-8167.2008.01384.x. Epub 2008 Dec 17.
The approach to catheter-based radiofrequency ablation of atrial fibrillation has evolved, and as a consequence, more energy is delivered in the posterior left atrium, exposing neighboring tissue to untoward thermal injury. Simultaneously, catheter technology has advanced to allow more efficient energy delivery into the myocardium, which compounds the likelihood of collateral injury. This review focuses on the basic principles of thermodynamics as they apply to energy delivery during radiofrequency ablation. These principles can be used to titrate energy delivery and plan ablative approaches in an effort to minimize complications during the procedure.
基于导管的心房颤动射频消融方法已经发展，因此，更多能量在后侧左心房传递，使邻近组织面临不良热损伤。同时，导管技术不断进步，能够更有效地将能量传递到心肌，这增加了附带损伤的可能性。本综述重点关注热力学基本原理在射频消融能量传递中的应用。这些原理可用于调整能量传递并规划消融方法，以尽量减少手术过程中的并发症。
