Termination of a Narrow QRS‐Complex Tachycardia:
نویسندگان
چکیده
منابع مشابه
Termination of a narrow QRS-complex tachycardia: what is the mechanism?
A 27-year-old man with a 10-year history of recurrent episodes of paroxysmal supraventricular tachycardia underwent an electrophysiologic procedure. The baseline sinus cycle length was 860 msec, and the atrial-His (AH) and Hisventricular (HV) intervals were 80 and 45 msec, respectively. A narrow QRS-complex tachycardia was induced by atrial overdrive pacing. The cycle length of the tachycardia ...
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An 80-year-old man underwent an electrophysiologic procedure because of recurrent episodes of supraventricular tachycardia. Episodes of nonsustained narrow QRS complex tachycardia occurred spontaneously after catheter placement. Examples of the onset and termination of an episode of tachycardia are shown in Figures 1 and 2, respectively. What is the mechanism of the tachycardia? What is the lev...
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yENTRICUIAR and supraventricular tachyeardias are occasionally resistant to drug therapy and may culminate in congestive heart failure, circulatory collapse, ventricular fibrillation, and death. In this paper are presented recent experiences with eight patients in whom tachyeardias were unresponsive to drug therapy and were terminated by external electric countershock, usually unider general an...
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Myocardial infarctions are frequently complicated by tachyarrhythmias, which commonly have wide QRS complexes (QRS duration > 120 milliseconds). Many published criteria exist to help differentiate between ventricular and supraventricular mechanisms. We present a case of a 61-year-old male with a history of hypertension, hyperlipidemia and coronary artery disease with prior stenting of the right...
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This report describes a patient presenting with a narrow complex tachycardia in the context of prior myocardial infarction and impaired ventricular function. Electrophysiological studies confirmed ventricular tachycardia and activation and entrainment mapping demonstrated a critical isthmus within an area of scar involving the His-Purkinje system accounting for the narrow QRS morphology. This v...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Electrophysiology
سال: 2003
ISSN: 1045-3873,1540-8167
DOI: 10.1046/j.1540-8167.2003.03227.x