A patient with very long chain acyl-CoA dehydrogenase (VLCAD) deficiency is
reported. He had a severe neonatal presentation and cardiomyopathy. He was
found to be homozygous for a severe mutation with no residual enzyme activ
ity. Tandem mass spectrometry on dried blood spots revealed increased long
chain acylcarnitines. VLCAD enzyme activity was severely decreased to 2% of
control levels. Dietary management consisted of skimmed milk supplemented
with medium chain triglycerides and L-carnitine. Outcome was good and there
was no acute recurrence.