Case Report of the Patients with Idiopathic Ventricular Premature Contractions Originating from the Right Ventricular Outflow Tract, Which Induced Anxiety Attacks

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The 73 ys old women and the 64 ys old man without structural heart disease who were presented with anxiety attacks due to ventricular premature beats. When they underwent 24 hours Holter monitoring, the frequency of premature ventricular contractions was 32% and 19.5% of total heart beats. Radiofrequency applications on the point where the activation preceded the onset of the QRS by 34 msec and 50 msec, respectively, in the right ventricular outflow tract (RVOT), successfully eliminated the tachycardia. Successful ablation site was the posterior septal and free wall of RVOT, respectively. Anxiety attack disappeared after the ablation of idiopathic ventricular premature contractions originating from the RVOT in both patients. We report the cases in whom radiofrequency catheter ablation was effective, although ventricular premature contractions were not frequent and benign.
日本不整脈学会の論文