during a period of 18 months beginning in january 1982 , a total of 65 patients were referred to the miami heart institute for evaluation of either aborted out of hospital sudden death , ventricular tachycardia resistant to standard clinically directed antiarrhythmic medication programs or high grade ventricular arrhythmia ( lown class greater than or equal to iv b ) with or without syncope .
C0042514
ventricular tachycardia
C0085612
ventricular