A Wide QRS Complex, Long RP Tachycardia:
نویسنده
چکیده
A 78-year-old man underwent an electrophysiologic procedure because of a 25-year history of recurrent episodes of paroxysmal tachycatdia. A wide QRS complex tachycardia that had a long RP interval wa.s induced by ventricular pacing (Fig. 1). The cycle length of the tachycardia was 540 msec. An atrial extrastitiiulus introduced in the high right atrium during the first half of diastole terminated the tachycaidia (Fig. 2). The tachycardia also was tenninated by ventricular pacing at a cycle length of 340 msec (Fig. 3). What is the tachycardia mechanism?
منابع مشابه
Long RP interval tachycardia. What is the mechanism?
A 41-year-old man with a history of tachycardia refractory to multiple antiarrhythmic drugs was sent to our institution. His 12-lead electrocardiogram demonstrated incessant narrow QRS complex tachycardia with negative P waves in the inferior leads and long RP interval. Occasionally, the tachycardia terminated after a P wave and then was restarted after a sinusal beat. An EP study was performed...
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