[Catheter-induced modulation of the electric conductivity of the atrioventricular node by high-frequency current].
A radio-frequency current was delivered via a catheter to the atrioventricular (AV) node in 13 patients with supraventricular arrhythmias (maximal heart rate 215/min). In nine patients with atrial fibrillation, three with AV nodal re-entry tachycardia and one with AV re-entry tachycardia, AV node conduction time was prolonged from 95 +/- 43 ms to 168 +/- 72 ms. In three patients the radio-frequency current had no lasting effect, necessitating AV node ablation with a direct-current shock. During a mean observation period of five months, all ten patients in whom the radio-frequency current had been successfully applied remained free of symptoms without any anti-arrhythmia treatment. There were no complications during or after treatment.
Kunze
K P
KP
Universitätskrankenhaus Eppendorf, Abteilung Kardiologie, Hamburg.
Geiger
M
M
Schlüter
M
M
Kuck
K H
KH
D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000188:drug therapy / Q000628:therapy*; D001281:Atrial Fibrillation / Q000628:therapy; D001282:Atrial Flutter / Q000628:therapy; D001283:Atrioventricular Node; D006328:Cardiac Catheterization; D004599:Electric Stimulation Therapy; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006329:Heart Conduction System; D006801:Humans; D008297:Male; D008875:Middle Aged; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000628:therapy; D013997:Time Factors
Katheter-induzierte Modulation der elektrischen Leitfähigkeit des Atrioventrikularknotens mittels Hochfrequenzstroms.