The regular beating of the heart is dominated by the sinus node, which is like the "headquarters" of the heart. After the "command" issues the command, it is transmitted to the cardiomyocytes through the "messenger system" at a certain time and sequence, producing a heartbeat. If any link goes wrong, it will cause arrhythmias. Arrhythmias are the most common group of disorders clinically, and all people have arrhythmias throughout their lives.
What is the normal heartbeat rate?
The heartbeat of a normal adult should be between 60 and 100 beats per minute. Tachycardia exceeds 100 beats per minute and bradycardia is less than 60 beats. This refers to sinus rhythm, but it may vary with age, sex, and other physiological conditions. In general, a person's heart rate slows down during quiet or sleep and increases during exercise or excitement. Under the influence of certain drugs or neurosomal factors, the heart rate also increases or decreases.
The most common causes of tachycardia are extracardiac causes such as fever, post-exercise, agitation, and anemia. If tachycardia is not related to the above causes, heart disease should be considered, most commonly myocarditis and hyperthyroid heart disease.
Bradycardia is more common in older people. If the heartbeat suddenly slows down, it must be related to the heart, which may be a red flag.
A heartbeat rhythm is when the beating rhythm of the heart must be kept in a stable zone. A sudden premature beat is called premature beat (also called premature contraction), and most people will have a feeling of jumping out of the throat or have obvious palpitations. A sudden decrease in heart rhythm is called abortive beat or cardiac arrest. Most people will feel dizzy, and when severe, their eyes will turn black and even faint.
What causes my heart to slow down?
Normal people's heart rate changes with physical needs. People with good physique, such as athletes, often have a heart rate of less than 60 during rest, and the heart rate of ordinary people will drop to thirty or forty times when sleeping, which is normal, because the body does not need the heart to work hard at this time. In addition, for some patients with coronary heart disease, aortic dissection, and heart failure, a heart rate of 55-60 beats is one of the treatment targets.
Therefore, not all sinus bradycardia is a disease.
Three basic principles of arrhythmias.
If there are symptoms of arrhythmias, analyze the specific situation.
1. Such symptoms should be paid special attention to: if there are symptoms such as black eyes, dizzy hair or even falls, pay special attention to it and go to the hospital for a comprehensive examination.
2. Patients with diabetic combined atrial fibrillation need special attention: because atrial fibrillation can lead to thromboembolism, the risk of thromboembolism in patients with diabetic atrial fibrillation is significantly increased, and severe cases may be life-threatening. Therefore, patients should communicate more with their doctors, try to prevent embolism, and consider radiofrequency ablation.
3. Don't worry too much about premature beats: Most premature beats without heart disease have a good prognosis. Patients should not deliberately take more medicines because of premature beats, let alone take health supplements.
The principles of treating arrhythmias are: serious arrhythmias, especially atrial fibrillation, should be taken seriously; we should know more about premature beats and not pay too much attention to them.