PMID: 9538310Apr 16, 1998Paper

Isoprenaline and inducibility of atrioventricular nodal re-entrant tachycardia

Heart
H HatzinikolaouH J Wellens

Abstract

To examine the effect of isoprenaline on slow and fast pathway properties and tachycardia initiation. Consecutive patients, prospective study. Referral centre for cardiology, academic hospital. 24 patients suffering from common type atrioventricular nodal reentrant tachycardia (AVNRT). Programmed electrical stimulation and radiofrequency catheter ablation of the slow pathway. AVNRT was induced before and after the administration of isoprenaline in nine patients (group 1), before isoprenaline only in five (group 2), and after isoprenaline only in 10 (group 3). The anterograde effective refractory period of the fast pathway was prolonged significantly during isoprenaline administration in group 1 (405 (31) v 335 (34) ms, p < 0.001) and shortened in group 2 (308 (57) v 324 (52) ms, p = 0.005). There was also significant shortening in group 3 (346 (85) v 395 (76) ms, p < 0.001). Isoprenaline administration did not result in a significant change of the anterograde effective refractory period of the slow pathway in groups 1 and 3, but eliminated slow pathway conduction in group 2. Isoprenaline significantly shortened the minimal and maximal atrial to His bundle conduction interval recording in response to each extrastimulus of the sl...Continue Reading

Citations

Aug 19, 2008·Current Problems in Cardiology·Ken W LeeMelvin M Scheinman
Nov 13, 2010·Pacing and Clinical Electrophysiology : PACE·Joshua D SternAnthony Aizer
Apr 17, 2003·Intensive Care Medicine·Georg Delle KarthGottfried Heinz
Dec 3, 2005·International Journal of Cardiology·Beatrice Brembilla-PerrotHadj Belhakem
Apr 25, 2003·Pacing and Clinical Electrophysiology : PACE·Leonardo LibermanRobert H Pass
Nov 15, 2011·International Journal of Cardiology·H Khachab, B Brembilla-Perrot
Mar 25, 2017·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Mohammad Hossein NikooMohammad Kafi
Apr 5, 2019·Pacing and Clinical Electrophysiology : PACE·Yoshiaki KanekoMasahiko Kurabayashi

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