Effects of procainamide on atrioventricular nodal re-entrant paroxysmal tachycardia.
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چکیده
منابع مشابه
The effects of ouabain on induction of atrioventricular nodal re-entrant paroxysmal supraventricular tachycardia.
Electrophysiological studies utilizing His bundle recordings and atrial extra-stimulus technique were performed in 17 patients (pts) with documented paroxysmal supraventricular tachycardia (PSVT) before and after 0.01 mg/kg, i.v., ouabain. Before ouabaine, echozones(EZ) were demonstrated in 11 patients. After ouabain, EZ were abolished in two, decreased in five, unchanged in three, and increase...
متن کاملDemonstration of dual atrioventricular nodal pathways utilizing a ventricular extrastimulus in patients with atrioventricular nodal re-entrant paroxysmal supraventricular tachycardia.
In patients with atrioventricular (A-V) nodal re-entrant paroxysmal supraventricular tachycardia (PSVT), atrial extrastimulus technique frequently reveals discontinuous A1-A2, H1-H2 curves suggestive of dual A-V nodal pathways. To further test the hypothesis that these curves in fact reflect dual A-V nodal pathways, a ventricular extrastimulus (VS) was coupled either to A2 at a fixed A1-A2 inte...
متن کاملCoexistent Types of Atrioventricular Nodal Re-Entrant Tachycardia
T he mechanism of atrioventricular nodal re-entrant tachy-cardia (AVNRT) remains elusive. Both anatomic and functional models have been proposed. There has been elec-trophysiological evidence that the right and left inferior extensions of the human AV node and the atrionodal inputs they facilitate, which have been identified histologically, might provide the anatomic substrate for the slow path...
متن کاملIsoprenaline and inducibility of atrioventricular nodal re-entrant tachycardia.
OBJECTIVES To examine the effect of isoprenaline on slow and fast pathway properties and tachycardia initiation. DESIGN Consecutive patients, prospective study. SETTING Referral centre for cardiology, academic hospital. PATIENTS 24 patients suffering from common type atrioventricular nodal reentrant tachycardia (AVNRT). INTERVENTIONS Programmed electrical stimulation and radiofrequency ...
متن کاملAtrioventricular Nodal Reentrant Paroxysmal Tachycardia
amount of myocardium. Am J Cardiol 36: 37, 1975 5. Ewy GA: Defibrillation paddle electrodes. Proceedings of the Cardiac Defibrillation Conference, Purdue University, West Lafayette, Indiana, 1975, p 39 6. Ewy GA: Effectiveness of direct current defibrillation. Role of paddle electrode size. I1. Am Heart J 93: 674, 1977 7. Rush S, Lepeschkin E, Gregaritsch A: Current distribution from defibrilla...
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ژورنال
عنوان ژورنال: Circulation
سال: 1978
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.57.6.1171