Complete atrioventricular block
Presentations vary according to age of onset.
- Cases resulting from neonatal lupus may present in utero or during infancy with main finding of bradycardia. Complications include hydrops fetalis, pericardial effusion, and endocardial fibroelastosis. Episodic murmurs and gallops may be observed in neonates and are associated with high mortality.
- Roughly 40% of cases are diagnosed at average age of 5. These patients present with syncope, dizziness, and bradycardia. Syncopal events may be fatal, even among asymptomatic patients.
- Adulthood presentation is characterized by bradycardia, fatigue, syncope, dizziness, dyspnea, palpitations, angina pectoris, and congestive heart failure.
Related topics: First-Degree Atrioventricular Block, Second-Degree Atrioventricular Block
I44.2 – Atrioventricular block, complete
27885002 – Complete atrioventricular block