the term torsade de pointe ( t.d.p . ) was first introduced by dessertenne ( 1966 ) to designate an unusual ventricular tachyarrhythmia characterized by paroxysms of v.t . at rates typically greater than 200 beats/m , in which the qrs morphology shows alternating polarity in a modulating pattern , so that the complexes appear to be twisting around the baseline .
C0040479
torsade de pointe
C0042514
ventricular tachyarrhythmia