ECG with slipping complexes
Slipping complexes can occur in the AV-connection or ventricles on the background of sinus bradycardia or the stop of the sinus node. In contrast to the extrasystoles, the coherence interval of a sliding complex is always greater than the cycle length of the main rhythm.
Slipping complexes of AV-compounds have the same configuration as the complexes resulting from the normal conduct of atrial impulses, while the form of slipping complexes of ventricular origin resembles ventricular extrasystoles. Slipping complexes and rhythms themselves do not require any treatment. If treatment is necessary, then it is aimed at increasing the frequency of the base rhythm.
Against the background of sinus bradycardia or with the inability of the sinus node to generate impulses from secondary sources of the specialized cardiac conduction system, slipping complexes may occur.
In contrast to extrasystoles, slip complexes always appear late, i.e. the adhesion interval is always greater than the cycle length of the dominant rhythm. It is important to distinguish between slipping and extrasystolic complexes, because the first indicates a violation of the function of the sinus node.
Vyskopzvayuschie complexes and rhythms themselves do not require any treatment. If treatment is necessary, then it is aimed at increasing the frequency of the base rhythm. Slipping complexes usually occur in the AV compound; less commonly, their source is localized in the ventricles. Ventricular complexes of slipping contractions from the AV connection are similar to those occurring at a normal rhythm, since the impulse is conducted in the usual way – through the bundle of His and his legs.
As with extrasystoles from an AV connection, the focus located in the AV connection can activate both the atria and the ventricles, which leads to the appearance of a retrograde P wave (ie, a negative P wave in leads II, III, aVF). In this case, the retrograde P wave can either precede the QRS complex, or be recorded after it or merge with it, depending on the ratio of the velocities of the impulse from the AV connection to the ventricles and atria. Ventricular slip complexes in their configuration are similar to ventricular extrasystoles.