Gaita Fiorenzo, Paperini Luca, Riccardi Riccardo, Ferraro Anna
Division of Cardiology, Ospedale Mauriziano Umberto I di Torino, Torino, Italy.
J Cardiovasc Electrophysiol. 2002 Nov;13(11):1160-3. doi: 10.1046/j.1540-8167.2002.01160.x.
Radiofrequency ablation inside the coronary sinus (CS) is associated with the risk of vein stenosis, or perforation or damage to the circumflex artery. Cryothermic ablation has proved less harmful, but there are no data on its use within a venous structure. A patient with a posterolateral accessory pathway underwent several unsuccessful attempts at endocardial ablation. Ablation then was performed with cool energy within the CS, where the shortest VA interval and a possible Kent potential were recorded. Selective left coronary angiography showed a normal circumflex artery and the absence of lesions of the CS. Six months later, the patient was asymptomatic without taking antiarrhythmic drugs. We conclude that cryoablation within the CS may be effective and safe.
冠状窦（CS）内的射频消融与静脉狭窄、穿孔或回旋支动脉损伤的风险相关。冷冻消融已被证明危害较小，但尚无关于其在静脉结构内应用的数据。一名后外侧旁路患者多次心内膜消融尝试均未成功。随后在CS内使用冷能量进行消融，记录到最短VA间期及可能的肯特电位。选择性左冠状动脉造影显示回旋支动脉正常，CS无病变。6个月后，患者未服用抗心律失常药物且无症状。我们得出结论，CS内冷冻消融可能有效且安全。
