Cardiac Repolarization Vector

The cardiac repolarization vector (CVR) is an electrocardiographic indicator that describes the electrical activity of the heart during the process of ventricular repolarization. SVR reflects changes in electrical potential within myocardial cells that occur after cardiac excitation.

SVR is measured using electrocardiography (ECG) and is a vector value that shows the direction and magnitude of changes in electrical potential at a specific point in time. The repolarization vector can be positive, negative or zero, depending on how quickly the electrical potential in the myocardial cells changes.

A positive SVR indicates that the electrical potential increases during repolarization, which may indicate increased cardiac activity. A negative SVR, in contrast, indicates a decrease in electrical potential during repolarization and may be associated with decreased cardiac activity. A zero SVR means that no changes in electrical potential occur during repolarization.

The cardiac repolarization vector is important for the diagnosis of various heart diseases, such as coronary heart disease, arrhythmias, cardiomyopathy and others. In addition, CVR can be used to assess the effectiveness of treatment and monitor cardiac conditions.

Thus, the cardiac repolarization vector is an important electrocardiographic indicator that can help in the diagnosis and monitoring of various cardiac diseases.

**Cardiac repolarization vector.** The first choice cardiological study in diagnosing coronary artery disease and stroke is the study of the repolarization potentials of the surface ECG and the determination of the so-called myocardial repolarization vector (or time vector, as they say in the everyday sense). His research solves an extremely important problem, without which it is impossible to discuss questions about the existence of pathological processes in the myocardium. This is primarily the task of determining the presence and localization of myocardial lesions in the precordial leads. In this case, it is certainly necessary to know not only those ECG leads where such foci can be recorded, but also the nature of focal changes, i.e. their polarity, the presence of hemodynamically and metabolically significant cardiac arrhythmias. It was noted that ischemic changes in the myocardium determine some characteristics of corrected repolarization in relation to the isoelectric line of the heart, located