Grade 4 Neonatal Sinus Bradycardia, AE

**Semantic type:** Finding

**Definition:** A sinus bradycardia adverse event in a newborn characterized by life-threatening consequences (e.g. shock); requiring urgent major care changes.

**Synonyms:** - Grade 4 Neonatal Sinus Bradycardia - Grade 4 Neonatal Sinus Bradycardia, Adverse Event