First degree atrioventricular block


Normal Case/Contol

GWAS of 0011705

Sibling Case/Control

No sibling GWAS available 0011705


Case Control
5803 454391

Phenotype Definition

Delay of conduction through the atrioventricular node, which is manifested as prolongation of the PR interval in the electrocardiogram (EKG). All atrial impulses reach the ventricles. [DDD:dbrown, HPO:probinson]

Phenotype Comment

The conduction of the cardiac impulse through the atrioventricular node is manifested in the EKG by the PR interval, which is normally less that 200 milliseconds in adults. Normal values are age-dependent in children, but normal values are less that 160 milliseconds in young children.

Top SNP Information

Associated Diseases

ID Name Top Correlation
ICD: I440 Atrioventricular block, first degree 5/20
ICD: I441 Atrioventricular block, second degree 2/20