| 18384992 |
Fernandez-Torre JL, Teja JL, Castellanos A, Figols J, Obeso T, Arteaga R: Spinal muscular atrophy type I mimicking critical illness neuropathy in a paediatric intensive care neonate: electrophysiological features. Brain Dev. 2008 Oct;30(9):599-602. Epub 2008 Apr 1.
We report the case of a neonate with spinal muscular atrophy type I (SMA type I or Werdnig-Hoffman disease) who was initially misdiagnosis as having critical illness neuropathy. Electromyography (EMG) showed a moderate loss of voluntary and motor unit potentials of both neurogenic and myopathic appearance. Nerve conduction studies revealed the presence of a severe sensory-motor axonal neuropathy. Finally, a biopsy of quadriceps was compatible with the diagnosis of SMA type I. A genetic study confirmed the existence of a homozygous absence of exons 7 and 8 of the telomeric supervival motoneuron gene (SMN1 gene). |
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