Sinoatrial Block

**Definition:** Disturbance in the atrial activation that is caused by transient failure of impulse conduction from the SINOATRIAL NODE to the HEART ATRIA. It is characterized by a delayed in heartbeat and pauses between P waves in an ELECTROCARDIOGRAM.

**Tree numbers:** - C14.280.067.558.750 - C14.280.123.500.750 - C23.550.073.425.780

**Synonyms:** - Sinoatrial Exit Block