Exercise-induced monomorphic ventricular tachycardia from the left ventricle outflow tract.
A case of exercise-induced idiopathic ventricular tachycardia (VT) arose from the left ventricular outflow tract. The QRS morphology of the VT was Rs pattern in V1 and R pattern in the lateral leads with inferior axis. The pacing at the superior interventricular septum near the mitral anulus produced the best pace mapping. Radiofrequency application to this site suppressed the VT.
Komori
S
S
Second Department of Medicine, Yamanashi Medical University, Tamaho, Japan.
Takeda
S
S
Tachibana
K
K
Yamamoto
K
K
Sano
S
S
Kohno
I
I
Umetani
K
K
Sawanobori
T
T
Ishihara
T
T
Ijiri
H
H
Tamura
K
K
D015444:Exercise; D005260:Female; D006801:Humans; D008875:Middle Aged; D017180:Tachycardia, Ventricular / Q000209:etiology* / Q000503:physiopathology*; D016277:Ventricular Function, Left