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Pulsed Doppler and two-dimensional echocardiographic findings in coronary arteriovenous fistula complicated by bacterial endocarditis. A case report.

Coronary arteriovenous fistula (CAVF) may occasionally be complicated by bacterial endocarditis. The actual anatomical site of infection has not been clearly defined. A 13-year-old boy with a CAVF and Streptococcus viridans bacteraemia is described. The origin of the fistulous tract and a vegetation in close proximity to the distal drainage site into the right ventricle was demonstrated by Doppler two-dimensional echocardiography.