Spastic diplegia and other motor disturbances in infants receiving interferon-alpha

Laryngoscope. 2004 Jul;114(7):1231-6. doi: 10.1097/00005537-200407000-00017.


Objective: To determine how frequently the use of -interferon (-IFN) is associated with the development of spastic diplegia.

Study design and methods: Meta-analysis of 600 English manuscripts published January 1991 to June 2002 reporting -IFN use in infants/children. We identified 3,113 children 18 years of age or younger and an estimated 3,055 children 12 years of age or younger who received -IFN therapy. Sixty-nine percent were treated for chronic hepatitis and 14% for vascular neoplasms.

Outcome measure: Neurologic examination to confirm spastic diplegia or a motor developmental disturbance other than spastic diplegia such as hyperactive deep tendon reflexes, gait disturbances, or impaired fine motor control.

Results: Including our index case, 11 of 441 children with vascular lesions developed spastic diplegia and an additional 16 of 441 developed a motor developmental disturbance. All of these children were less than 1 year of age at initiation of therapy. Mean age of initiation and duration of -IFN therapy were not significantly different between groups (P >.05); however, motor developmental disturbances improved with cessation of therapy, whereas spastic diplegia did not. No child receiving treatment for chronic hepatitis developed neurologic complications; however, only 49 children were less than 1 year of age at initiation of therapy.

Conclusion: -IFN should not be used in infants under 1 year of age unless life-threatening conditions do not respond to any other form of treatment. If -IFN must be used, children should have monthly neurologic examinations. If a motor developmental disturbance is detected and -IFN therapy can be discontinued, it should be.

Publication types

  • Meta-Analysis

MeSH terms

  • Adolescent
  • Cerebral Palsy / chemically induced*
  • Child
  • Child, Preschool
  • Hemangioma / drug therapy
  • Humans
  • Infant
  • Infant, Newborn
  • Interferon-alpha / adverse effects*
  • Interferon-alpha / therapeutic use
  • Motor Skills Disorders / chemically induced*


  • Interferon-alpha