Daily Archive 02.01.2019

Signs of atrial fibrillation on ECG

Signs of atrial fibrillation on ECG

Normal P teeth are not identified, fibrillation waves are seen, having different configurations.

Due to the chaotic conduct of excitation from the atria to the ventricles, a picture of absolute arrhythmia is noted.

Atrial fibrillation is the most frequent heart rhythm disorder requiring treatment. It usually appears in IHD, AH, mitral heart disease and hyperthyroidism.

The treatment is carried out with anticoagulants and antiarrhythmic drugs, electrical cardioversion, and only in the absence of the effect of these funds is shown catheter ablation of the pathways in the mouth of the pulmonary veins.

Atrial fibrillation is the most frequent heart rhythm disorder requiring treatment. In recent years, new data on the pathogenesis of atrial fibrillation have been accumulated, new methods of diagnosing and especially treating this disease have been developed.

Atrial fibrillation is observed in 1% of the adult population. In Germany, patients with atrial fibrillation are 1 million. With increasing age, especially after 80 years, the frequency of atrial fibrillation increases, reaching 10-16%.

When atrial fibrillation occurs, the occurrence of arousal is completely disturbed, the sinus rhythm disappears, and the normal R-wave stops registering on the ECG. Instead, so-called flicker waves (f) are registered, randomly following each other. Flicker waves are very small and sometimes inexperienced remain unnoticed. The frequency of flicker waves is 350-600 per minute. They are characterized by inconstancy of shape and size, and sometimes they are not even separated from each other.

Atrial fibrillation waves are conducted to the ventricles without any pattern, so the RR interval is irregular, which suggests an absolute arrhythmia. Usually the waves f are most clearly visible in leads II and / or V). The QRS complex, as a rule, is not wide, there are no pathological changes in the ST interval at first.

If the frequency of ventricular contractions in atrial fibrillation does not exceed 60 per minute, they speak of bradyarrhythmic flicker, but if it is more than 100 beats per minute, then it is tachyarrhythmic. In these cases, treatment is necessary.