Wide QRS complex supraventricular tachycardia with negative precordial concordance.
The authors describe the case of a 49-year-old man who experienced an episode of palpitations and dizziness. The results of 24-hour Holter monitoring demonstrated an episode of wide QRS complex regular tachycardia. During the electrophysiological study, a wide QRS complex tachycardia with negative precordial concordance was induced. A diagnosis of orthodromic atrioventricular re-entrant tachycardia involving a left lateral accessory pathway with left bundle branch aberration was made. This case represents a rare exception to the rule that negative precordial QRS concordance is diagnostic of ventricular tachycardia.
Pappas
Loukas K
LK
Second Department of Cardiology, Evangelismos General Hospital of Athens, Athens, Greece. lukepappas@hotmail.com
Efremidis
Michalis
M
Letsas
Konstantinos P
KP
Gavrielatos
Gerasimos D
GD
Alexanian
Ioannis P
IP
Sideris
Antonios
A
Kardaras
Fotios
F
D017115:Catheter Ablation; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D022062:Electrophysiologic Techniques, Cardiac; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013617:Tachycardia, Supraventricular / Q000175:diagnosis* / Q000503:physiopathology* / Q000601:surgery