Mitochondrial Short-Chain Enoyl-CoA Hydratase 1 Deficiency (ECHS1)

Clinical characteristics.

Mitochondrial short-chain enoyl-CoA hydratase 1 deficiency (ECHS1D) represents a clinical spectrum in which several phenotypes have been described:

  • The most common phenotype presents in the neonatal period with severe encephalopathy and lactic acidosis and later manifests Leigh-like signs and symptoms. Those with presentation in the neonatal period typically have severe hypotonia, encephalopathy, or neonatal seizures within the first few days of life. Signs and symptoms typically progress quickly and the affected individual ultimately succumbs to central apnea or arrhythmia.
  • A second group of affected individuals present in infancy with developmental regression resulting in severe developmental delay.
  • A third group of affected individuals have normal development with isolated paroxysmal dystonia that may be exacerbated by illness or exertion.

Read the full study on the NCBI (National Center of Biotechnology) website under GeneReviews publication. Click here

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