Tachycardia

Introduction Normal heart rate is generally 60 to 90 times per minute. Sometimes, taking antihistamines, coffee, tea, amphetamines or nervousness, anemia, fever, hyperthyroidism, or other heart diseases can cause tachycardia and continuous heartbeat. Those who are overspeed should continue to follow up.

Cause

There are many reasons for tachycardia. For young people, persistent tachycardia should exclude the possibility of hyperthyroidism. In addition, mild myocarditis or anemia, tuberculosis, etc. without obvious symptoms should also be considered. The above is caused by pathological factors. In addition, certain mental factors, fatigue, nervousness, autonomic dysfunction, and beta-receptor hyperfunction are also common functional causes of tachycardia.

an examination

Related inspection

Dynamic electrocardiogram (Holter monitoring) ECG

Its characteristics are gradually occurring and gradually disappearing. Predisposing factors include emotional excitement, excessive fatigue, nightmares, drinking, drinking tea, drinking coffee, and smoking. Generally no special treatment is needed, as long as the predisposing factors are eliminated, they will recover on their own. If caused by certain diseases, such as fever, anemia, pregnancy, hyperthyroidism, heart failure, shock, and autonomic dysfunction, etc.

Differential diagnosis

If the adult heart rate exceeds 100 beats/min, it is the heart skip speed.

Accelerated atrial escape rhythm is also called non-paroxysmal atrial tachycardia, accelerated atrial autonomic rhythm, accelerated atrial rhythm and so on. Diagnosis can be confirmed based on medical history, symptoms, signs, and electrocardiogram findings.

Rapid heartbeat after meal: It is a normal situation. It is seen in many normal people. After eating or eating, the gastrointestinal tract is digesting food, and the gastrointestinal tract peristalsis increases, so the blood flowing into the gastrointestinal tract increases. The blood will be drawn from other parts of the body. Of course, some of them are extracted from the share of the supply of the heart, which will reduce the amount of blood supply to the heart. The heart will increase the beating of the heart in order to maintain normal work.

Rapid heartbeat during sleep: is a manifestation of myocardial ischemia and left ventricular dysfunction. Myocardial ischemia may also present asymptomatic and physical signs, and clinical examination has evidence of myocardial ischemia, such as ST segment changes, myocardial perfusion defects, and wall motion abnormalities. Usually after coronary artery occlusion, the following changes occur: coronary blood flow decreased, local blood supply and blood demand ratio changed, coronary sinus blood oxygen content decreased; myocardial systolic function and diastolic function decreased; left ventricle Increased diastolic blood pressure; ECG changes, such as ST-segment elevation or depression, chest discomfort, etc. However, these abnormalities often occur in a short period of time, and patients may never have chest discomfort.

The heartbeat is very messy: it means that the heartbeat is fast or slow, which is beyond the general range. Cardiac tachycardia, bradycardia or arrhythmia caused by abnormal autonomic or conduction disorders; mental stress, heavy smoking, drinking, drinking tea or coffee, excessive fatigue, severe insomnia, etc. are often predisposed to arrhythmia. Arrhythmias are particularly common in patients with heart disease and often occur during anesthesia, surgery, or surgery.

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