Tag Archives: QRS axis

Introduction The significance of the frontal QRS-T angle (QTA), the difference between the QRS-axis and T-axis, has not been widely recognised in clinical practice, though it is widely available on 12-lead ECGs recorded by a modern electrocardiograph.1,2 An abnormally wide QTA represents an abnormality of ventricular depolarisation or repolarisation, and is known to be an independent predictor of cardiovascular mortality secondary to ischaemic events, sudden death, death from arrhythmia, increased incidence of congestive heart failure, as well as all-cause mortality.2-5 It has even been considered as a stronger predictor of poor prognosis tha