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Progressive infantile axonal polyneuropathy.

T J Geller1, A M Connolly, S Kotagal

  • 1Department of Neurology, Cardinal Glennon Children's Hospital, Saint Louis University, Health Sciences Center, MO, USA.

Journal of Child Neurology
|August 29, 2000
PubMed
Summary
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This study identifies a rare, progressive axonal polyneuropathy in infants presenting shortly after birth. Early recognition is crucial due to rapid quadriplegia and respiratory compromise in this infantile neuropathy.

Area of Science:

  • Neurology
  • Pediatrics
  • Genetics

Background:

  • Polyneuropathies in infancy are rare, often presenting as hypomyelinating neuropathies.
  • Axonal sensorimotor neuropathies typically appear later in childhood with nonprogressive courses.

Observation:

  • Three infants from two families presented with a rapidly progressing axonal polyneuropathy shortly after the neonatal period.
  • Clinical signs included quadriplegia and involvement of cranial and phrenic nerves.

Findings:

  • Electrophysiology confirmed the diagnosis in all affected infants.
  • The condition was distinguished from spinal muscular atrophy through clinical, biopsy, and genetic evaluations.
  • Familial inheritance was noted in two of the three cases.

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Implications:

  • This early-onset progressive axonal polyneuropathy requires prompt recognition due to severe, rapid progression.
  • Early identification is vital for managing respiratory compromise and understanding the genetic basis of infantile neuropathies.