Unusual cause of aborted sudden cardiac death in a teen athlete: homozygosity for the 4G allele of the plasminogen activase inhibitor type 1 gene.

Common aetiologies of sudden cardiac death in children include coronary anomalies, channelopathies, and cardiomyopathies. Less frequently, hypercoagulable states cause sudden arrest. We report an unusual case of aborted sudden cardiac death in a teenager, ultimately found to have homozygosity for the 4G allele of the plasminogen activase inhibitor type 1 gene.