the electrophysiologic effects and efficacy of diltiazem were evaluated with programmed electrical stimulation of the heart in 12 patients with supraventricular re-entrant tachycardia ( five with atrioventricular nodal tachycardia and seven with circus movement tachycardia the accessory pathway being concealed in 4 ) .
C0039240
supraventricular
C0039231
tachycardia