Rapid heartbeat
Introduction
Introduction The normal heart rate should be between 60 and 90 beats per minute, and the athlete's heart rate may be slightly slower. The mechanism for controlling the heartbeat of a person is: there is a sinus node at the root of the aorta, and the electrical stimulation is spontaneously issued. After the conduction of the beam, the current is transmitted to the myocardium, causing myocardial contraction. Meanwhile, the medulla in the central nervous system is the heartbeat. The center sends out a sympathetic nerve that accelerates the heartbeat and a vagus nerve that slows the heartbeat. Usually, the sympathetic and vagus nerves are in equilibrium. In an emergency, the sympathetic nerves are excited, and the heartbeat is accelerated, so that the blood pumped by the heart increases every minute, and more blood is supplied to the whole body to cope with the crisis. At night, the vagus nerve is excited. To slow down the heartbeat, the heart reduces blood supply to the whole body.
Cause
Cause
There are many reasons for the heartbeat to speed up, both pathological and physiological.
Pathological tachycardia is common in sick sinus syndrome, and the compensatory heartbeat after myocardial injury caused by various reasons.
The acceleration of physiological heartbeat is mainly caused by a sudden increase in human activities. In order to adapt to the increased demand for blood in the whole body after the increase in activity, the heartbeat is increased to supply more blood, for example, from sleep state to awake state. From a static state to a state of motion, from a low-volume state such as walking to a high-speed operation such as running; in addition, from a lying position to a sitting position, a standing posture, a sitting posture to a standing posture, since the heart needs blood pressure to a higher place, Also need to improve your heart rate.
Examine
an examination
Related inspection
Dynamic electrocardiogram (Holter monitoring) ECG
A diagnosis can be made by an electrocardiogram.
Dynamic electrocardiogram (Holter monitoring) introduction:
Holter: It is a method that continuously records and compiles ECG changes in the active and quiet state for a long time. Also known as Holter monitoring.
Dynamic ECG (Holter monitoring) normal values:
Conventional ECG can only record waveforms with a resting state of only a few dozen cardiac cycles, while dynamic electrocardiogram can continuously record up to 100,000 ECG signals within 24 hours, which can improve non-sustained ectopic rhythm, especially It is the detection rate of transient arrhythmia and transient myocardial ischemic attack.
Dynamic electrocardiogram (Holter monitoring) clinical significance:
1. Diagnosis of myocardial ischemia.
2. Evaluate various symptoms that may be related to the heart.
3. Evaluation of anti-myocardial ischemia and anti-arrhythmia drug therapy.
4. Evaluation of pacemaker function.
5. Follow-up of patients with myocardial infarction.
6. Diagnosis of normal heart rhythm.
Diagnosis
Differential diagnosis
A diagnosis can be made by an electrocardiogram.
Pathological tachycardia is common with sick sinus syndrome, and compensatory heartbeat after myocardial injury caused by various causes.
The acceleration of physiological heartbeat is mainly caused by a sudden increase in human activities. In order to adapt to the increased demand for blood in the whole body after the increase in activity, the heartbeat is increased to supply more blood, for example, from sleep state to awake state. From a static state to a state of motion, from a low-volume state such as walking to a high-running state such as running; in addition, from a lying position to a sitting position, a standing posture, a sitting posture to a standing posture, because the heart needs blood pressure to a higher place, Also need to improve your heart rate.
