Atrioventricular block refers to the heart electrical conduction process, occur between the atrium and ventricle of electrical conduction abnormalities, can lead to arrhythmia, so that the heart can not normal contraction and pumping blood, known as atrioventricular block. Atrioventricular block can occur in different parts of the atrioventricular node, kirschner bundle and bundle branch. According to the different degree of block, can be divided into 1, 2 and 3 degrees atrioventricular block.According to BORSAM Biomedical, Three types of atrioventricular block have different clinical manifestations, prognosis and treatment.




　　Causes of atrioventricular block (for reference only)

　　1. Some healthy people:

　　2. Heart disease causes:

　　3. Iatrogenic atrioventricular block:

　　4. Familial heritability:

　　Classification of atrioventricular block

　　1. First-degree atrioventricular block

　　2. Secondary atrioventricular block

　　3. Third-degree atrioventricular block