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Related Experiment Videos

A 10-year experience with postpump chorea

M D Medlock1, R S Cruse, S J Winek

  • 1Department of Neuroscience, University of Illinois College of Medicine at Peoria, IL 61656.

Annals of Neurology
|December 1, 1993
PubMed
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Postpump chorea (PPC) in children is linked to deep hypothermia and circulatory arrest during heart surgery. This neurological condition often results in developmental delays and has a guarded prognosis.

Area of Science:

  • Pediatric Neurology
  • Cardiovascular Surgery
  • Neuroscience

Background:

  • Postpump chorea (PPC) is a rare neurological complication following cardiopulmonary bypass.
  • This study investigates the incidence, clinical features, and potential risk factors associated with PPC in pediatric patients.

Observation:

  • Eight out of 668 children (1.2%) developed PPC within two weeks of open cardiac surgery.
  • Affected children, aged 8-34 months, experienced chorea onset 3-12 days post-surgery.
  • Neuroimaging revealed atrophy but no focal lesions; PET scans showed decreased glucose metabolism.

Findings:

  • PPC patients had significantly longer pump times, lower temperatures, and higher rates of circulatory arrest compared to controls.
  • Developmental delays were observed in all patients long-term.

Related Experiment Videos

  • Five patients had persistent chorea, with neurological deficits ranging from learning disabilities to death.

    • Implications:

    • Deep hypothermia and circulatory arrest are strongly associated with PPC.
    • The etiology may involve biochemical or microembolic factors due to the absence of macroscopic changes.
    • The prognosis for complete resolution of chorea is guarded, highlighting the need for further research and preventative strategies.