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Head Cooling for Neonatal Encephalopathy: The State of the Art


Clinical Obstetrics and Gynecology: September 2007 - Volume 50 - Issue 3 - p 636-651
doi: 10.1097/GRF.0b013e31811ebe68
Prevention of Birth Injuries

The possibility that hypothermia started during or after resuscitation at birth might reduce brain damage and cerebral palsy has tantalized clinicians for a long time. The key insight was that transient severe hypoxia-ischemia can precipitate a complex biochemical cascade leading to delayed neuronal loss. There is now strong experimental and clinical evidence that mild to moderate cooling can interrupt this cascade, and improve the number of infants surviving without disability in the medium term. The key remaining issues are to finding better ways of identifying babies who are most likely to benefit, to define the optimal mode and conditions of hypothermia and to find ways to further improve the effectiveness of treatment.

*Department of Physiology

The Liggins Institute, The University of Auckland, Auckland, New Zealand

Supported by grants from the Health Research Council of New Zealand, Lottery Health Board of New Zealand, and the Auckland Medical Research Foundation. The authors were lead investigators on the CoolCap trial, but have no financial interest in the CoolCap.

Correspondence: Alistair Jan Gunn, MBChB, PhD, Departments of Physiology and Paediatrics, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand. E-mail:

© 2007 Lippincott Williams & Wilkins, Inc.