Etymology

From French torsader ‎(“to twist”), de ‎(“of”), and pointe ‎(“a(n ECG) spike”), from the characteristic/classic appearance of the associated electrocardiogram image of a turning of the QRS complex's orientation around the isoelectric baseline (namely peaks which are at first f.e. pointing up are progressively seen to be diminishing in height and then pointing further and further down for subsequent heartbeats); term coined by the French physician François Dessertenne in 1966.