Why is the heart prone to premature beats when the weather is cold?

Is it early or early? Have you checked the color Doppler echocardiography? Do you have organic heart disease? If not, rest and operation are recommended.

1. Occasionally premature beats, no treatment.

2. Always go to bed early and get married early.

Verapamil 40mg, three times a day, can block the slow calcium channel, slow the conduction, prolong the refractory period and reduce the self-discipline of slow-response fibers. Propranolol 10mg, three times a day, can reduce the autonomy of pacing cells, slow down conduction and prolong the refractory period of atrioventricular node. Amiodarone 0.2g, three times a day, gradually reduced to 0.2g after one week, and maintained at 65438 0 times a day, which can prolong the action potential time and refractory period, and has little effect on conduction. For patients caused by digitalis poisoning, phenytoin sodium 0. 1g, three times a day, can increase the permeability of cells to potassium ions and shorten the refractory period, but does not slow down the conduction, which can effectively combat arrhythmia caused by digitalis poisoning.

3. The heart rate of ventricular premature beats is slow by 0. 1 ~ 0.2g, 3 ~ 4 times a day, and that of ventocaine is 0.4 ~ 0.6g, 3 times a day. The action mechanism is the same as that of phenytoin sodium; Propafenone 150 ~ 300 mg, three times a day, can slow down conduction and slightly prolong refractory period and action potential time. Procaine amide 0.25~0.5g, 4 times a day, can slow down conduction and prolong refractory period. Those who are caused by cardiac insufficiency, such as those who have not used digitalis recently, can take 0.4mg of cedilanid and give it intravenously after dilution, and take 0.25mg of digoxin orally, once a day/kloc-0. Digitalis poisoning can lead to frequent premature beats. In addition to stopping digitalis, 250mg of phenytoin sodium and 20ml of water for injection should be used for intravenous injection (not less than 10 minute). If it is ineffective, 100mg should be reused after 15 minutes, and the total amount should not exceed 500mg. Mild patients can take phenytoin sodium 0. 1g orally, three times a day, and supplement potassium salt; If the heart rate is slow, take atropine 0.3 ~ 0.6 mg orally, 3 ~ 4 times a day.