Internal deviation (or deviation, internal oscillation, English: internal deviation) of an electrocardiogram is a phenomenon in which there is a shift in the electrical activity of the heart relative to its normal position on the electrocardiogram. This phenomenon can occur for various reasons, such as disturbances in impulse conduction, changes in the heart muscle, changes in the position of the heart inside the chest, etc.
Internal deviation of the electrokariogram - (syn.: internal oscillations of the electrocardiogram, deviations intransikoidid) - is one of the important parameters in medical diagnostics, which reflects the work of the heart and its electrical activity. This concept describes deviations in the results of studying cardiac electrical potentials, which are determined during a cardiac examination.
Internal ECG deviation is one of the main indicators used in identifying disorders of the heart, such as myocardial ischemia, angina pectoris, arrhythmia, and cardiac conduction disorders. In addition, this parameter is used to assess the effectiveness of therapy for cardiac pathology. The internal deviation can vary in amplitude, frequency and shape, depending on what changes occur in the heart. For example, with myocardial ischemia, the amplitude of the deviation will be higher than normal.
What is internal ECG deviation in medicine? Typically, an electrocardiogram (ECG) is a graphical representation of the electrical activity of the myocardium during the cardiac cycle. To do this, certain changes in electrical charge are recorded in the chest at certain intervals. These data are interpreted by a doctor and make it possible to identify the presence of any pathological processes in the cardiovascular system or to distinguish one physiological reaction from another. The results of the interpretations are recorded in the form of a graph - not an arbitrary drawing, but a graphic mark that allows you to compare different states of the heart with each other. The main informative parameter of the ECG is the ECG lead, since to obtain this record the sequence of studies differs both in normal and pathological conditions. In practice, it is customary to focus on the P-R interval: the duration of this interval will remain unchanged for a long time, while other parameters are normally subject to significant changes throughout the patient’s life.
Internal deviation of electrocardiography Internal deviation of the electrocardiographic curve (internal oscillation of the heart or autointrinsic deviation; IOC) refers to changes over time in the bioelectrical activity of the heart observed during the horizontal or descending segment of the basic electrocardiographic curve.