Diagnostic and prognostic significance of QRS-T angle

The angle between the  QRS  and  T  vectors reflects the consistency or inconsistency of the processes of de- and repolarization of the ventricles of the heart and is considered one of the indicators of global electrical heterogeneity of myocardium. In recent years, the prognostic value of the  QRS-T  angle has been demonstrated in relation to total and cardiovascular mortality, both in the population and in various groups of patients. The mechanisms of this phenomenon are not completely clear. The review analyses studies published over the past five years on the relationship between the  QRS-T  angle and mortality, as well as coronary heart disease and heart failure. Possible mechanisms for increasing the  QRS-T  angle are discussed. Data are given on the use of the  QRS-T  angle in diagnostic and prognostic scales, including in combination with other indicators of global electrical heterogeneity of myocardium.