作者: ATUL VERMA , NASSIR F MARROUCHE , ROBERT A. SCHWEIKERT , WALID SALIBA , OUSSAMA WAZNI
DOI: 10.1046/J.1540-8167.2005.40443.X
关键词: Catheter ablation 、 Medicine 、 Tachycardia 、 Sinus rhythm 、 Ventricular tachycardia 、 Substrate mapping 、 Myocardial infarction complications 、 Internal medicine 、 Ventricle 、 Cardiology 、 Ablation
摘要: Ventricular Tachycardia and the Scar Border Zone. Introduction: It is unknown if identification of scar border zones by electroanatomical mapping correlates with successful ablation sites determined from during ventricular tachycardia (VT) post-myocardial infarction (MI). We sought to assess relationship between hemodynamically stable post-MI VTs VT zone defined in sinus rhythm. Methods Results: Forty-six patients presenting stable, mappable monomorphic who had at least one such successfully ablated were prospectively included study. In each patient, was targeting regions that exhibited early activation, ′ isolated mid-diastolic potentials, concealed entrainment suggesting a critical isthmus site. Prior ablation, detailed sinus-rhythm CARTO voltage map left ventricle obtained. A <0.5 mV dense scar. Successful registered on their zone. Of 86 VTs, 68% endocardial The remaining within (18%), normal myocardium (4%), epicardial surface (10%). There no significant differences recurrence amongst different groups. Conclusion: are often located as substrate mapping. However, sizable minority, scar, epicardially, even myocardium.