Supraventricular arrhythmia

Introduction Arrhythmia is caused by dysfunction or activation of sinus node, which is caused by sinus node tachycardia. The conduction of agonism is slow, blocked or transmitted through abnormal channels, that is, the origin of cardiac activity and conduction disorders lead to abnormal frequency and rhythm of heart beat. Arrhythmia is an important group of diseases in cardiovascular disease. It can be associated with cardiovascular disease alone or in combination with cardiovascular disease. Sudden onset and sudden death, can also continue to affect the heart and failure, arrhythmia can be seen in a variety of organic heart disease.

Cause

Supraventricular arrhythmia is a heart disease caused by viral infection, which affects the heart and causes myocardial damage. Since the heart is an important blood pump organ of the human body, heart disease often causes harm to human body and mind. Currently, supraventricular arrhythmia Recognized as a special and difficult condition by the World Health Organization. At present, it is generally believed that children with supraventricular arrhythmia are infected by virus, and the action of viral toxin directly leads to myocardial injury. Adults are generally considered to have autoimmune dysfunction and supraventricular rhythm after activation of the myocardial immune system after viral infection. Abnormal inflammatory lesions are mostly caused by immune dysfunction.

an examination

Dynamic electrocardiogram

The 24-hour continuous ECG recording may record the onset of arrhythmia, the effects of the autonomic nervous system on spontaneous arrhythmias, the relationship between perceived symptoms and arrhythmias, and assess the therapeutic effect. However, it is difficult to record arrhythmia that is infrequent.

2. Invasive electrophysiological examination

In addition to the diagnosis of slow arrhythmia and tachyarrhythmia, it can also be used to determine the function of sinoatrial node and atrioventricular conduction system in the intermittent application of arrhythmia, induce supraventricular and ventricular tachyarrhythmia, and determine the heart rhythm. The site of abnormal origin, evaluation of the effects of drugs and non-drugs, and the provision of necessary information for surgery, pacing or ablation.

Differential diagnosis

First, the sinus arrhythmia, there are two types:

1, respiratory sinus arrhythmia, after the patient's breath and activity, the heart rhythm can be neat, but the heart rate is increased when inhaling, slowing down when exhaling.

2, non-respiratory sinus arrhythmia, the patient's heart rate has nothing to do with breathing. Such patients do not have to be treated, or just need to remove the cause.

Second, atrial fibrillation (atrial fibrillation): This arrhythmia can have "three inconsistencies", that is, the heart sounds are inconsistent, the speed is inconsistent, and the pulse is inconsistent (pulse leakage). For the treatment, propranolol (propranolol), verapamil (vistadine), cardiotonic drugs such as cedilan can be used.

Third, pre-systolic contraction (premature beat): the number of pre-contraction in the late stage of normal activities can be reduced or disappeared, while the number of pre-operative contractions in patients with organic heart disease increases, the first heart sounds increase, the second heart sounds weaken, the pulse Leaking. For treatment, propranolol, verapamil, phenytoin (dalentin), lidocaine, and amiodarone can be used.

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