Second-degree type 2 AV block is already a pathologic block and may be eliminated; it depends on the cause; according to the classification of causes, it can be divided into transient and pathologic causes.
1. Transient causes: for example, electrolyte disorders, drug factors, etc.; after correcting the cause of the disease, it can return to normal.
2. Pathologic causes: for example, myocarditis, myocardial infarction, etc.; because of the damage to the myocardial cells, the condition lasts for a longer period of time; if the patient has been treated in time and with good efficacy, perhaps some of the patients can recover after the treatment of the primary disease.
Second-degree type 2 atrioventricular block refers to the inability of intermittent sinus P waves to travel down the normal cardiac cycle, and the inability of atrial excitation to travel down to the ventricles.
If the patient’s ventricular rate is particularly low and blood cannot meet the needs of the whole body, the patient may experience dizziness, palpitations, and fainting; patients with symptoms should be treated under medical supervision.