Is the type II sinus block serious?

Type II sinoatrial block refers to type II sinoatrial block. Type II sinoatrial block is usually more severe.

Sinoatrial block refers to the blockage of sinoatrial impulse transmission, which affects myocardial function. Type II sinoatrial block is a relatively serious type of conduction block, usually caused by heart disease, usually resulting in dizziness, palpitations, amaurosis, syncope, etc. If not treated in time, the disease further develops, third degree sinoatrial block will occur, resulting in complete interruption of sinoatrial conduction function, affecting health.