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- W2060103225 abstract "The clinical and electrophysiologic characteristics of 6 patients who had repetitive monomorphic ventricular tachycardia (VT) after a remote myocardial infarction (group A) were compared with those of 22 patients who had this arrhythmia without structural heart disease (group B). VT had a right bundle branch block morphologic pattern in 5 of 6 group A patients and a left bundle branch block morphologic pattern in all group B patients. Endocardial catheter activation mapping was performed in 4 group A patients and in 9 group B patients during VT. In all group A patients, the site of VT origin was on the border of the previous infarction; in all group B patients VT originated at the right ventricular outflow tract. Pacing and programmed stimulation induced VT in 5 of 6 group A patients and 7 of 22 group B patients (p = 0.03). Isoproterenol infusion provoked VT in 4 group A patients and 9 group B patients. Type I antiarrhythmic agents suppressed VT in 4 group A patients and in 14 group B patients, whereas propranolol suppressed VT in 3 of 3 group A patients tested and in 12 of 20 group B patients. Verapamil suppressed spontaneous VT in 1 group A patient and in 4 group B patients. During a mean follow-up of 19 months for group A and 40 months for group B, no patient had died suddenly or had cardiac arrest. The clinical and electrophysiologic characteristics of 6 patients who had repetitive monomorphic ventricular tachycardia (VT) after a remote myocardial infarction (group A) were compared with those of 22 patients who had this arrhythmia without structural heart disease (group B). VT had a right bundle branch block morphologic pattern in 5 of 6 group A patients and a left bundle branch block morphologic pattern in all group B patients. Endocardial catheter activation mapping was performed in 4 group A patients and in 9 group B patients during VT. In all group A patients, the site of VT origin was on the border of the previous infarction; in all group B patients VT originated at the right ventricular outflow tract. Pacing and programmed stimulation induced VT in 5 of 6 group A patients and 7 of 22 group B patients (p = 0.03). Isoproterenol infusion provoked VT in 4 group A patients and 9 group B patients. Type I antiarrhythmic agents suppressed VT in 4 group A patients and in 14 group B patients, whereas propranolol suppressed VT in 3 of 3 group A patients tested and in 12 of 20 group B patients. Verapamil suppressed spontaneous VT in 1 group A patient and in 4 group B patients. During a mean follow-up of 19 months for group A and 40 months for group B, no patient had died suddenly or had cardiac arrest." @default.
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- W2060103225 date "1984-11-01" @default.
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- W2060103225 title "Repetitive, monomorphic ventricular tachycardia: Clinical and electrophysiologic characteristics in patients with and patients without organic heart disease" @default.
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- W2060103225 doi "https://doi.org/10.1016/s0002-9149(84)80133-2" @default.
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