Dette inkluderer patienter med hypokalæmi eller hypomagnesiæmi, patienter med kongenit langt QT- syndrom, patienter der tager antiarytmika eller andre lægemidler, som medfører QT- forlængelse samt kumulative høje doser af anthracyclin.
These include patients with hypokalemia or hypomagnesemia, patients with congenital long QT syndrome, patients taking anti-arrhythmic medicinal products or other medicinal products which lead to QT prolongation, and cumulative high dose anthracycline therapy.