Is a slow heartbeat life threatening? Please, thank you

A normal person has about 70 100 heartbeats per minute, and if the heartbeat is less than 60 beats per minute, it is bradycardia. Causes of bradycardia are common: vagus nerve hyperfunctionWhen the vagus nerve is excited, its terminals can release a substance called "acetylcholine", which acts as a suppression of the heart, so it can slow the heartbeat.

Bradycardia caused by vagus nerve hyperactivity is usually regular, usually 30 to 40 beats per minute. This situation is more common among the elderly. Sick sinus syndrome due to the pacemaker of the heartbeat, the sinus node, does not give off impulses well or delays the impulse, which slows the heartbeat, the most common ** are cardiomyopathy, coronary heart disease and degenerative diseases of the cardiac conduction system in the elderly.

People with sick sinus syndrome sometimes have only about 30 heartbeats per minute. Severe atrioventricular block means that the impulse wave emitted by the pacemaker sinus node cannot be transmitted to the atrioventricular node and is blocked, at this time the ventricle has to compensate for its own impulses, so the heartbeat is quite slow, once complete atrioventricular block occurs, the heartbeat is only about 20 times per minute, and dizziness can occur due to the obvious decline in cardiac blood output that directly affects the blood supply to the brain, and even causes syncope or convulsions. Once you find that there is a slow change in heartbeat, you should not ignore it, and you should go to the hospital in time to ask a doctor for a systematic examination.

Secondly, on the issue of taking medication. Due to the different causes of arrhythmia, the symptoms are different, and the medication is different, the cardiovascular drugs should be selected under the guidance of the doctor, do not blindly take the medicine, and do not take the "heart medicine" when you see it. Most patients with arrhythmias can generally recover after taking medication**.

Of course, if a functional arrhythmia is removed, the symptoms will disappear naturally. However, some patients with severe arrhythmias, such as ventricular fibrillation, atrial fibrillation, and severe atrioventricular block, also need to do special ** such as electrical defibrillation, electrocardioversion, and pacemaker installation. Finally, it should also be noted that once the elderly find arrhythmia, they should be calm, because tension will aggravate the symptoms, of course, they should usually keep a good mood, avoid anger and irritability, quit smoking and drinking, pay attention to rest, and do not overwork.

It is also necessary to have regular check-ups.

My mother's heart beats 30-40 times, she has diabetes, heart attack, heart failure, I don't know what to do!

If a person's heart beats less than 60 times per minute, it is "slow heartbeat", also known as "bradycardia". Normal people or athletes may appear, especially athletes, because regular exercise increases the contraction force of the heart, and the output of blood per beat increases, which is enough for the needs of various organs of the body, so the heartbeat of 50-60 times per minute is enough. However, if the heartbeat is only 30-40 beats per minute, it may be abnormal, and the cause should be investigated.

There are three common causes of slow heartbeat: The first is vagus nerve hyperfunction, which has a nerve center in the medulla of the brain that regulates cardiovascular activity. This center can have the function of suppressing the heartbeat or speeding up the heartbeat.

The vagus nerve is the nerve fiber that is emitted by this center, which is used to innervate the heartbeat and other functions. When the vagus nerve is excited, its terminals can release a substance called "acetylcholine" that acts as a depressant to the heart, slowing the heartbeat. The heart rate caused by "hyperactivity" is mostly regular, although the heartbeat is slow, it is rarely less than 30-40 beats per minute, and normal people, including the elderly, can appear.

The second type of slow heartbeat is called "sick sinus syndrome", or "sick sinus" for short. This is a pathological cardiac manifestation whose pathological changes occur mainly at the pacemaker of the heartbeat ——— the sinus node. The common ** is coronary heart disease, cardiomyopathy and degenerative diseases of the cardiac conduction system in the elderly.

Patients with "sick sinus" have a very slow heartbeat, sometimes only 30-40 beats per minute. The third is the slow heartbeat caused by severe atrioventricular block, that is, the impulse wave sent by the original pacemaker sinus node cannot be transmitted to the atrioventricular node and is blocked, at this time the ventricle has to compensate for its own impulses, so the heartbeat is very slow, once complete atrioventricular block occurs, when the heartbeat is less than 20 times per minute, dizziness, and even fainting and convulsions can occur due to the obvious decline in cardiac blood output that directly affects the cerebral blood supply, which is a serious attack of Ass syndrome. Most of the causes of severe conduction block are organic lesions of the heart itself, such as coronary heart disease, myocardial lesions, or advanced severe changes in some heart diseases.

In short, when the heart beats slowly, it should be considered mainly from the main causes such as "hyperactivity", "sinus disease" and severe conduction block, and it can also be found through a detailed medical history and electrocardiogram examination to find the cause of slow heartbeat, so that it can be targeted.