eleven patients ( 34 % ) were found to have laboratory-induced vt , 5 patients ( 15 % ) had evidence of sinus nodal dysfunction , 1 patient ( 3 % ) had infra-his atrioventricular block during atrial pacing , and 1 patient ( 3 % ) had probable quinidine-related vt .
C0034414
quinidine
C0042514
vt