What is the reason for frequent ventricular premature beats being a couplet?

Frequent ventricular premature beats are bigeminy may be caused by autonomic nervous dysfunction, organic heart disease, electrolyte imbalance and other reasons.

1, autonomic nervous dysfunction

due to excessive intake of coffee, tobacco, alcohol, and long-term mental stress, insomnia and other factors, leading to autonomic nervous dysfunction, causing sympathetic and vagus nerve overexcitation, resulting in ventricular premature beats.

2, organic heart disease

due to patients with ischemic cardiomyopathy, coronary heart disease, myocarditis and other heart diseases, can lead to ectopic rhythm point excitability increased, causing ventricular premature beats.

3, electrolyte imbalance

due to patients with hypokalemia, low blood magnesium, etc., easy to lead to increased cardiac automaticity, induced arrhythmia, resulting in ventricular premature beats.