Septal Q waves in surface electrocardiographic lead V6 exclude minimal ventricular preexcitation.
Electrocardiograms of 37 consecutive patients with minimal preexcitation (i.e., PR >120 ms, QRS <120 ms) were compared before and after ablation with electrocardiograms of 37 age-matched patients with atrioventricular nodal reentrant tachycardia. The presence of a septal Q wave could be used to exclude minimal preexcitation with a high degree of reliability in both patients and controls before and after radiofrequency ablation.
Department of Internal Medicine, J.W. Goethe University, Frankfurt, Germany. Bogun@uni-frankfurt.de
F
F
Bogun
D
D
Kalusche
Y G
YG
Li
S
S
Auth-Eisernitz
G
G
Grönefeld
S H
SH
Hohnloser
D002304:Cardiac Pacing, Artificial; D016022:Case-Control Studies; D017115:Catheter Ablation; D004562:Electrocardiography; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011226:Pre-Excitation Syndromes / Q000175:diagnosis* / Q000601:surgery; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis / Q000601:surgery; D013617:Tachycardia, Supraventricular / Q000175:diagnosis / Q000601:surgery