[Broad QRS complex tachykardia - what is the mechanizm?].
We present the ECG with broad QRS complex tachycardia and left bundle branch block (LBBB) morphology. There are negative P waves in inferior leads (II, III, aVF) and positive in V1 with the RP interval of 124-164 ms. The slow-slow atrioventricular nodal reentrant tachycardia (AVNRT) conducted with LBBB aberrancy was diagnosed. The differential diagnosis of slow-slow AVNRT from atrioventricular reentrant tachycardia using concealed posteroseptal accessory pathway is discussed.
Majewski
Jacek
J
Klinika Elektrokardiologii, Collegium Medicum, Uniwersytet Jagielloński, Szpital im. Jana Pawała II, Kraków. jp38@interia.pl
Lelakowski
Jacek
J
D001283:Atrioventricular Node / Q000503:physiopathology*; D002037:Bundle-Branch Block / Q000503:physiopathology*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis*; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis