Electrocardiogram mapping-reentry: final frontier?
نویسندگان
چکیده
منابع مشابه
A Mechanism of A-V Nodal Wenckebach in Man
In five patients, bundle of His electrograms were recorded during right ventricular pacing at various cycle lengths. In all patients, as the cycle length of stimulation was decreased, the pattern of retrograde conduction proceeded from 1:1 retrograde conduction to retrograde Wenckebach with or without manifest reentry, to retrograde Wenckebach cycles with concealed reentry. The requisite condit...
متن کاملManifest and concealed reentry: a mechanism of A-V nodal Wenckebach in man.
In five patients, bundle of His electrograms were recorded during right ventricular pacing at various cycle lengths. In all patients, as the cycle length of stimulation was decreased, the pattern of retrograde conduction proceeded from 1:1 retrograde conduction to retrograde Wenckebach with or without manifest reentry, to retrograde Wenckebach cycles with concealed reentry. The requisite condit...
متن کاملPrior ischemia enhances arrhythmogenicity in isolated canine ventricular wedge model of long QT 3.
OBJECTIVE Ventricular tachyarrhythmias (VTs) occur frequently in patients having long QT syndrome (LQTS) or after acute myocardial ischemia. However, the synergistic effects of ischemia and LQTS on arrhythmia development are unclear. We evaluated the contribution of a prior episode of ischemia on the arrhythmogenicity of the LQTS. METHODS Using a 256-channel optical mapping system, we mapped ...
متن کاملElectrocardiogram Characteristics that Distinguish Perimitral Reentry from Other Atrial Tachycardias after Atrial Fibrillation Ablation
Introduction: Ablation of Atrial Fibrillation (AF) can induce several types of Atrial Tachycardias (ATs). Perimitral reentry is a common mechanism among postablation ATs. The electrocardiographic (ECG) criteria for differentiating perimitral reentry from other postablation ATs may be useful in clinical practice. Methods and results: A total of 48 consecutive post atrial fibrillation ablation pa...
متن کاملThe diagnosis and management of supraventricular tachycardia by transesophageal cardiac stimulation and recording.
Twenty-two consecutive patients underwent esophageal stimulation and recording for the diagnosis and management of supraventricular tachycardia. In 13 of these patients, the resting electrocardiogram was normal and in nine it showed pre-excitation. Of the 13 patients with a normal resting electrocardiogram, supraventricular tachycardia was initiated in all. Seven patients had a ventricular-to-a...
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عنوان ژورنال:
- Circulation. Arrhythmia and electrophysiology
دوره 7 4 شماره
صفحات -
تاریخ انتشار 2014