What causes intermittent heartbeats?

The heart is a very important organ in the human body. If there is a problem with the heart, it will not only endanger physical health, but also life. Intermittent heartbeat is a relatively common heart disease. This may be a symptom caused by abnormal pulse or arrhythmia. You need to pay more attention to observe to avoid danger and eat more light food.

What causes intermittent heartbeats?

Pause is actually a kind of arrhythmia, which is quite common in clinical practice. It may be atrial premature beats or ventricular premature beats. Further electrocardiogram examination is recommended.

Mechanism

1. Abnormality in impulse formation:

The myocardial cells in the sinoatrial node, the atrioventricular bundle, near the coronary sinus orifice, the distal end of the atrioventricular node, and the His-Purkinje system have autonomy. Changes in the excitability of the autonomic nervous system or its intrinsic lesions can lead to inappropriate impulse release. In addition, myocardial cells that originally had no autonomy, such as atrial and ventricular cells, may also show abnormal autonomy under pathological conditions. Myocardial ischemia, drugs, electrolyte disorders, increased catecholamines, etc. can all lead to the formation of abnormal autonomy.

2. Impulse conduction abnormalities:

Arrhythmia Knowledge

Arrhythmia Knowledge

Reentry is the most common mechanism of all tachyarrhythmias.

Classification of arrhythmias:

1. Abnormal impulse formation

1) Sinus arrhythmia

(1) Sinus tachycardia (2) Sinus bradycardia (3) Sinus arrhythmia (4) Sinus arrest

2) Ectopic heart rate

① Passive ectopic heart rate (1) Ectopic tachycardia (atrial, atrioventricular junctional, ventricular); (2) Paroxysmal tachycardia (atrial, atrioventricular junctional, ventricular)

② Active ectopic heart rate (1) premature beats (atrial, atrioventricular junctional, ventricular); (2) paroxysmal tachycardia (atrial, atrioventricular junctional, atrioventricular reentry, ventricular); (3) atrial flutter, atrial fibrillation (4) ventricular flutter, ventricular fibrillation

2. Impulse conduction abnormalities

1) Physiological interference and atrioventricular dissociation

2) Pathological (1) Sinoatrial block (2) Intra-atrial block (3) Atrioventricular block (4) Bundle branch or fascicular block (left, right bundle branch and left bundle branch fascicular block) or intraventricular block

3) Abnormal atrioventricular conduction pathway preexcitation syndrome

diagnosis

Electrocardiogram of arrhythmia The diagnosis of the nature of arrhythmia mostly depends on electrocardiogram, but a considerable number of patients can make a preliminary diagnosis based on medical history and physical signs. Ask in detail about the heart rate and rhythm (regularity, missed beats, etc.), the onset and duration of the attack. The presence or absence of hypotension, syncope or near-syncope, convulsions, angina pectoris, or heart failure during an attack, as well as the causes, frequency, and treatment of previous attacks, can help determine the nature of the arrhythmia.