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Hypoxic-ischaemic encephalopathy (HIE)

What is it?
Hypoxic-ischaemic encephalopathy (HIE) is a lack of oxygen and/or blood flow getting to your baby from the placenta during the birthing process. This is also sometimes referred to as 'asphyxia' or 'birth asphyxia'. HIE can affect all of your baby's organs: the lungs, liver, heart, kidneys, and particularly the brain. It is not always possible to know what causes HIE, but we do know that a lack of oxygen can lead to brain injury, which can be mild, moderate or severe.

Your baby may be displaying symptoms which can include: being hyper-alert, irritable, eye-rolling and having abnormal movements (fits). Your baby may also have a reduced level of awareness.

If your baby has been identified as having HIE, their treatment will depend on what level of symptoms they have. If they have moderate to severe HIE, they are likely to receive a treatment known as mild hypothermia or cooling. This is when a baby’s temperature is lowered, to limit the extent of brain injury associated with HIE.

Treatment for HIE involves placing your baby on a special cooling mattress or wrapping them in a cooling wrap; the mattress or wrap is filled with fluid that can be cooled or warmed according to your baby’s needs. Your baby’s temperature will be monitored closely to ensure that it stays at the target temperature of 33.5 degrees.

For more information on HIE, you can download or order a copy of our free publication here



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