What is sinus bradycardia?

summary

Sinus bradycardia is a sinus arrhythmia caused by the decrease of sinus node automaticity. Its frequency is usually less than 60 beats per minute. If the heart rate continues and slows down significantly, and the cardiac output per beat cannot increase, the cardiac output per minute will decrease, and the blood flow of coronary artery, cerebral artery and renal artery will decrease. It can show shortness of breath, fatigue, dizziness, chest tightness and other symptoms. In severe cases, it can appear syncope, and angina pectoris in patients with coronary heart disease. What is sinus bradycardia? Now let me tell you something.

What is sinus bradycardia?

In patients with organic heart disease, because the heart rate is very slow, the cardiac output will decrease significantly, which will affect the blood supply of heart, brain, kidney and other important organs, and the symptoms are obvious. At this time, atropine (injection or oral) or even isoproterenol (1mg added to 500ml of 5% glucose solution, intravenous drip slowly, the dose should be adjusted according to the heart rate), To increase the heart rate. 1 g, 3 times daily.

However, for patients with severe sinus bradycardia caused by impaired sinus node function, their heart rate is very slow, symptoms are obvious, and even syncope occurs, and the effect of drug treatment is poor, permanent artificial cardiac pacemaker should be installed to prevent sudden sinus arrest.

Secondly, if sinus bradycardia is caused by increased intracranial pressure, drugs, bile duct obstruction and injury, the etiology should be treated first, combined with the degree of bradycardia and whether it causes the reduction of cardiac output. Appropriate use of drugs to increase heart rate, in order to prevent the sudden aggravation of the disease.

matters needing attention

Active prevention and treatment of primary disease, timely elimination of primary causes and incentives is the key to prevent the occurrence of the disease. At the same time, we should also pay attention to the conditioning of life and emotions. We should have a regular diet and daily life, and do not work rashly. Exercise and a positive attitude are important tips for keeping healthy.