The value of the 12-lead electrocardiogram in localizing the scar in non-ischaemic cardiomyopathy.
作者： Teresa Oloriz , Hein J.J. Wellens , Giulia Santagostino , Nicola Trevisi , John Silberbauer
关键词: Population 、 Ventricular tachycardia 、 Dilated cardiomyopathy 、 Endocardium 、 Medicine 、 Cardiomyopathy 、 QRS complex 、 Cardiology 、 PR interval 、 Internal medicine 、 Electrocardiography
摘要: Aims Patients with non-ischaemic cardiomyopathy (NICM) and ventricular tachycardia can be categorized as anteroseptal (AS) or inferolateral (IL) scar sub-types based on imaging voltage mapping studies. The aim of this study was to correlate the baseline electrocardiogram (ECG) endo-epicardial maps created during ablation procedures identify ECG characteristics that may help distinguish AS IL. Methods results We assessed 108 ECGs; 72 patients fulfilled criteria for dilated whereas 36 showed minimal structural abnormalities. Based unipolar low-voltage distribution, pattern classified predominantly ( n = 59) IL 49). Three (PR interval 230 ms QRS > 170 an r ≤ 0.3 mV in V3 having 92 81% sensitivity specificity, respectively, predicting pattern. A significant negative correlation found between extension endocardial low area left EF s −0.719, P < 0.001). extent correlated PR duration 0.583 0.680, 0.001, respectively) epicardial mean limb leads −0.639, 0.001). Conclusion Baseline features are well distribution abnormalities NICM predict location population.
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