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Home / Medical Research and News / Subtle, Long-Term Effects of Hypoxic-Ischemic Encephalopathy in Children Who Do Not Develop Cerebral Palsy
Subtle, Long-Term Effects of Hypoxic-Ischemic Encephalopathy in Children Who Do Not Develop Cerebral Palsy

Subtle, Long-Term Effects of Hypoxic-Ischemic Encephalopathy in Children Who Do Not Develop Cerebral Palsy

Recent research in the European Journal of Pediatrics suggests that infants who survive hypoxic-ischemic encephalopathy (HIE) are at a greater risk of developing certain neurological problems, even if they do not have the motor function impairments characteristic of cerebral palsy (CP).

For many years, it has been widely believed that cerebral palsy is the primary neurological outcome of hypoxic-ischemic encephalopathy, and that HIE survivors who do not develop CP are free of any long-term effects. However, the patterns of hypoxic-ischemic brain injury include areas important for functions other than motor control: for example, the hippocampus and striatum, which are involved in memory and attention. Therefore, Breda Hayes and colleagues hypothesized that survivors of mild HIE may have subtle cognitive deficits, which might not be measurable until they reach school age.

The authors assessed 146 children who had sustained hypoxic-ischemic brain injury during or around the time of birth, but did not develop cerebral palsy. Most had been diagnosed with Sarnat stage I or II encephalopathy, which placed them on the mild-moderate end of the brain damage spectrum (only one child had stage III). They found that children who were 42 months or younger scored normally on most assessments, with the exception of an adaptive behavior questionnaire, on which they performed slightly more poorly than would be expected of peers without any brain damage. Older children (over 42 months) had more pronounced impairments. Compared to the general population, these children were more likely to have problems with memory, attention, and appropriate behavior. Impairments were observed even among children who had only been diagnosed with Sarnat stage I encephalopathy.

One important limitation of this study is that the data were collected before the introduction of hypothermia therapy, which can prevent or minimize negative outcomes of hypoxic-ischemic encephalopathy. However, Hayes et al. note that most children with mild hypoxic-ischemic encephalopathy are not given hypothermia therapy. Given the results of this study, perhaps the protocols determining when this treatment is administered should be revisited.

The authors conclude by emphasizing that certain effects of hypoxic-ischemic encephalopathy may not be recognizable in infants or toddlers. Therefore, infants who were diagnosed with HIE in infancy should be monitored further into childhood. They suggest that the adaptive behavior questionnaire could be a good tool for determining which children will require developmental surveillance past the age of two.

About the HIE Help Center and ABC Law Centers

The HIE Help Center is run by ABC Law Centers, a medical malpractice firm exclusively handling cases involving HIE and other birth injuries. Our lawyers have over 100 years of combined experience with this type of law, and have been advocating for children with HIE and related disabilities since the firm’s inception in 1997.

We are passionate about helping families obtain the compensation necessary to cover their extensive medical bills, loss of wages (if one or both parents have to miss work in order to care for their child), assistive technology, and other necessities.

If you suspect your child’s HIE may have been caused by medical negligence, please contact us today to learn more about pursuing a case. We provide free legal consultations, during which we will inform you of your legal options and answer any questions you have. Moreover, you would pay nothing throughout the entire legal process unless we obtain a favorable settlement.

You are also welcome to reach out to us with inquiries that are not related to malpractice. We cannot provide individualized medical advice, but we’re happy to track down informational resources for you.

Source

Hayes, B. C., Doherty, E., Grehan, A., Madigan, C., McGarvey, C., Mulvany, S., … & King, M. D. (2018). Neurodevelopmental outcome in survivors of hypoxic ischemic encephalopathy without cerebral palsy. European journal of pediatrics, 177(1), 19-32.

Long-Term Effects of HIE Without Cerebral Palsy

 

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Filed Under: Medical Research and News Tagged With: cerebral palsy, hypothermia therapy

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The HIE Help Center serves as an informational resource guide for families of children with hypoxic-ischemic encephalopathy (HIE). It is sponsored by ABC Law Centers, a birth trauma law firm that has represented families of children with HIE and other birth injuries for over 20 years.

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