What disease is accelerated ventricular autonomic rhythm?

summary

Accelerated ventricular autonomic rhythm is a common arrhythmia in patients with acute myocardial infarction within 24 hours. It is more common in inferior myocardial infarction, often complicated with sinus arrhythmia. It has also been reported that it is also common in anterior and inferior wall infarction. In addition, accelerated ventricular autonomic rhythm is also the most common arrhythmia during reperfusion of acute myocardial infarction. The incidence of recanalization after thrombolysis or PTCA is 20.8%. Now let's talk about what disease is accelerated ventricular autonomic rhythm?

What disease is accelerated ventricular autonomic rhythm?

1. The causes include excessive digitalis, myocarditis, hyperkalemia, surgical operation (especially after cardiac operation), complete atrioventricular block, ventricular escape beat, and application of isoproterenol. A small number of patients without organic etiology, but also occasionally seen in normal people. The mechanism is the increase of Purkinje fiber automaticity with or without low sinus node pacing function. It can be divided into two types according to the heart rate: ① patients with ventricular rate of 60-75 beats / min seldom have pathological paroxysmal sustained ventricular tachycardia; ② patients with ventricular rate of 60-75 beats / min seldom have pathological paroxysmal sustained ventricular tachycardia; ② Patients with ventricular rate of 75-100 beats per minute are prone to pathological paroxysmal sustained ventricular tachycardia.

2. Although accelerated ventricular autonomic rhythm is called tachycardia, its frequency is not very fast, so it has no obvious effect on hemodynamics. Therefore, most patients have no obvious symptoms. The main symptoms and signs of patients are mostly the symptoms and signs of primary disease.

3. Because of the little effect of accelerated ventricular autonomic rhythm on hemodynamics, it is considered that it is not necessary to actively correct arrhythmia, but focus on the treatment of primary disease. However, in some patients with acute myocardial infarction, relatively fast accelerated ventricular autonomic rhythm can develop into fast sustained ventricular tachycardia,

matters needing attention

It is generally believed that accelerated ventricular autonomic rhythm is benign, and its occurrence is not accompanied by increased mortality, nor is it a precursor of ventricular fibrillation, and has no obvious effect on hemodynamics. Most of the patients can tolerate it, so the prognosis is good. However, in recent years, it has been found that the prognosis of accelerated ventricular autonomic rhythm depends on whether it develops into fatal ventricular arrhythmia. For example, when the ventricular rate of accelerated ventricular autonomic rhythm is more than 75 beats / min and / or the rhythm is irregular, we should be highly vigilant and treat it in time to prevent it from turning into paroxysmal ventricular tachycardia or even ventricular fibrillation.