Why does HIE cause seizures?

The risk of seizures is at its highest during the neonatal period, and the most common cause of neonatal seizures is hypoxic-ischaemic encephalopathy (HIE). This enhanced vulnerability is caused by an imbalance in the expression of receptors for excitatory and inhibitory neurotransmission, which is age dependent.

Can HIE cause seizures?

Background: Hypoxic-ischemic encephalopathy (HIE) is one of the most frequent causes of neonatal death or neurological handicaps such as cerebral palsy, mental delay, and epilepsy. Moreover, an acute consequence of HIE are neonatal seizures which can cause an additional brain damage.

What causes baby seizures?

Baby seizures happen when an abnormal extra burst of electrical activity occurs between neurons, or brain cells, in a baby’s brain. These can happen for many reasons. Causes may include brain injury, infection, and underlying health conditions, such as cerebral palsy.

Can a baby fully recover from HIE?

Brain injuries from HIE often result in physical disabilities and cognitive impairment. A smaller percentage of babies with HIE have great outcomes. These children fully recover and experience only mild, if any, symptoms of neurologic injury.

What are symptoms of hie?

What are the Symptoms of HIE During and Shortly After Birth?

Premature birth.
Organ damage or failure.
Very acidic umbilical cord blood (also known as acidemia)
Seizures.
Comatose state.
Unusually responses to light or lack thereof.
Feeding problems.
Extreme lethargy.

What is Hie newborn?

Hypoxic ischemic encephalopathy (HIE) is a type of brain dysfunction that occurs when the brain doesn’t receive enough oxygen or blood flow for a period of time. Hypoxic means not enough oxygen; ischemic means not enough blood flow; and encephalopathy means brain disorder.

How do they test babies for seizures?

electroencephalography (EEG), a test that records electrical activity in your child’s brain using tiny wires attached to the head (EEG is highly sensitive and can pick up even small seizures that don’t lead to physical symptoms.)

Is HIE a disability?

HIE can lead to brain damage, and often to a disability like cerebral palsy. The degree of disability varies by individual and is highly dependent on how long the baby was lacking oxygen. About one out of ten cases of cerebral palsy, of any severity, is caused by HIE.

Can EEG detect HIE?

Traditional multichannel EEG is an integral part of the evaluation of infants diagnosed with HIE. It is a valuable tool to assess the severity of the injury and evaluate for electrographic-only seizures (which are very common in neonates with HIE).

Can HIE be diagnosed by ultrasound?

Ultrasound features such as the size of lateral ventricles, altered brain parenchymal echogenicity and cerebral blood flow parameters are useful for the early diagnosis of HIE and help predict outcome.

Can a baby with hypoxic-ischemic encephalopathy have seizures?

Causes of and Risk Factors for Hypoxic- Ischemic Encephalopathy. HIE is a very serious condition that can cause permanent damage. A baby with HIE may have seizure activity as a result of HIE. However, the baby may have seizures due to a reason other than HIE.

How can I prevent seizures in my Baby with HIE?

If indicated, antiepileptic drugs should be given to prevent seizures. HIE is a very serious condition that can cause permanent damage. A baby with HIE may have seizure activity as a result of HIE. However, the baby may have seizures due to a reason other than HIE.

What causes seizures in newborns during birth?

Other causes of and risk factors for neonatal seizures (many of these conditions also cause hypoxic-ischemic encephalopathy) include the following: Umbilical cord compression. Problems with the placenta or uterus, such as a ruptured uterus or placenta previa. Trauma to the baby’s brain during delivery.

What is the most frequent consultation with a newborn with HIE?

The most frequent consultation, which leads to this sense of unease, is a newborn term infant with hypoxic-ischemic encephalopathy (HIE) who has now just started to develop seizures. Unlike seizures in older children, to some extent, for whom some evidence-based guidelines do exist, neonatal seizures are often beyond our comfort zone. Why?