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Related Experiment Videos

Persistent increases in cerebral lactate concentration after birth asphyxia

J D Hanrahan1, I J Cox, A D Edwards

  • 1Section of Paediatrics, Imperial College School of Medicine, Hammersmith Hospital, London, United Kingdom.

Pediatric Research
|September 4, 1998
PubMed
Summary
This summary is machine-generated.

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Persistent cerebral lactate detected via proton magnetic resonance spectroscopy (1H MRS) after one month in infants with abnormal neurodevelopmental outcomes suggests a prolonged post-injury process following perinatal hypoxia-ischemia.

Area of Science:

  • Neuroscience
  • Biochemistry
  • Pediatrics

Background:

  • Perinatal hypoxia-ischemia (HI) can lead to severe neurodevelopmental impairment.
  • The temporal window for detecting brain injury markers after HI is crucial for understanding long-term outcomes.

Purpose of the Study:

  • To investigate if lactate, a marker of brain injury, can be detected beyond one month in infants with neurodevelopmental impairment after perinatal HI.
  • To correlate persistent cerebral lactate levels with neurodevelopmental outcomes at one year of age.

Main Methods:

  • Prospective study using proton magnetic resonance spectroscopy (1H MRS) on three infant groups: abnormal neurodevelopment, normal neurodevelopment after HI, and controls.
  • Cerebral lactate to creatine plus phosphocreatine (Cr) concentration ratios were measured between 4 and 68 weeks post-birth.

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Main Results:

  • Lactate was detected later than one month in 7 of 8 infants with abnormal neurodevelopmental outcomes.
  • No lactate was detected after one month in infants with normal neurodevelopmental outcomes or most controls.
  • One control infant showed a minimal lactate level (lactate/Cr=0.04).

Conclusions:

  • Persistent cerebral lactate detected by 1H MRS after the first month post-birth is associated with abnormal neurodevelopmental outcomes.
  • This suggests the pathologic process following perinatal HI may extend beyond the acute injury phase.