Electrocardiogram QT corrected interval prolonged
- G1Average QTc 450 - 480 ms
- G2Average QTc 481 - 500 ms
- G3Average QTc >500 ms; >60 ms change from baseline
- G4Life-threatening consequences; Torsade de pointes; polymorphic ventricular tachycardia
- G5Not applicable
Definition and note
DefinitionA finding of a cardiac dysrhythmia characterized by an abnormally long corrected QT interval.
Navigational noteConsider Cardiac disorders: Ventricular arrhythmia, Ventricular fibrillation, Ventricular tachycardia.
MedDRA code (LLT): 10014383 · CTCAE v6.0 (NCI), original English text.