Do a check-up first to see if there are other reasons, such as hypertension, coronary heart disease, diabetes and so on. , and need to do cardiac ultrasound examination and 24-hour dynamic electrocardiogram examination. Understand the nature and quantity of premature beats, and then make a treatment plan. Heart rate 50-60 beats/min, generally asymptomatic. Normal people's heart rate is over forty at night. Drugs to treat bradyarrhythmia generally choose drugs that enhance myocardial autonomy and/or accelerate conduction, such as sympathomimetic drugs (isoproterenol, etc.). ), vagus nerve inhibitor (atropine) or alkalizer (molar sodium lactate or sodium bicarbonate). For the treatment of tachyarrhythmia, drugs that slow conduction and prolong refractory period are selected, such as vagus nerve stimulators (neostigmine and digitalis preparations), sympathomimetic drugs that indirectly excite vagus nerve (metoclopramide and phenylephrine) or antiarrhythmic drugs.