Left bundle-branch block with right axis deviation--a unique aberrancy during supraventricular tachycardia.
A tachycardia with left bundle-branch block morphology and right axis deviation points to the diagnosis of ventricular tachycardia. Conversely, any supraventricular tachycardia with left bundle-branch block is typically associated with a normal or leftward QRS axis. We present the case of a 34-year-old man showing atrioventricular nodal reentrant tachycardia with left bundle-branch block/right axis deviation as an exception to this rule.
Lokhandwala
Yash
Y
Arrhythmia Associates, Mumbai, India. yashlokhandwala@hotmail.com
Panicker
Gopi Krishna
GK
Shah
Mandar
M
Wellens
Hein J J
HJ
D000328:Adult; D002037:Bundle-Branch Block / Q000150:complications* / Q000175:diagnosis*; D004569:Electroencephalography / Q000379:methods*; D006801:Humans; D008297:Male; D013617:Tachycardia, Supraventricular / Q000150:complications* / Q000175:diagnosis*