Radiofrequency catheter ablation from the anterior interventricular coronary vein successfully eliminated idiopathic epicardial left ventricular outflow tract tachycardia.
Case Report (n=1)
We report a case of idiopathic left ventricular outflow tract (LVOT) tachycardia that was eliminated by a radiofrequency application from the anterior interventricular coronary vein (AIV). The ECG exhibited QRS complexes with an inferior axis and atypical left bundle branch block pattern with an early transition of the precordial R waves at V3. Several radiofrequency applications from the coronary cusps and endocardial LVOT were not effective. Radiofrequency applications in the AIV, where the activation preceded the onset of the QRS by 30 msec, successfully eliminated the tachycardia. The AIV may be an optional site for radiofrequency ablation of idiopathic epicardial LVOT tachycardia.
Hirasawa et al. (Thu,) conducted a case report in Idiopathic left ventricular outflow tract (LVOT) tachycardia (n=1). Radiofrequency catheter ablation from the anterior interventricular coronary vein (AIV) was evaluated on Elimination of tachycardia. Radiofrequency catheter ablation from the anterior interventricular coronary vein successfully eliminated idiopathic epicardial left ventricular outflow tract tachycardia.
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