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Neonatal Encephalopathy Therapeutic Hypothermia Follow-Up

Long-term neurodevelopmental surveillance of term neonates with hypoxic-ischemic encephalopathy treated with therapeutic hypothermia - monitoring for cerebral palsy, cognitive deficit, and epilepsy in infancy and childhood.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Çocuk Sağlığı ve Hastalıkları department. Book Appointment →

What is Neonatal Encephalopathy Therapeutic Hypothermia Follow-Up?

Hypoxic-ischemic encephalopathy (HIE) is brain injury from impaired oxygen delivery and cerebral perfusion in term newborns; incidence 1-3/1000 live births. Sarnat staging (mild/moderate/severe) - moderate-severe HIE indication for therapeutic hypothermia. Cooling protocol: 33.5°C target, 72-hour duration, gradual rewarming (0.5°C/hour). Mechanism: reduced apoptosis, decreased excitotoxicity, neuroprotective metabolic suppression.

Outcomes and predictors: untreated severe HIE - 60% mortality, 25% severe disability; with cooling - 35% mortality, 25% severe disability. Predictors: 1) aEEG - persistent burst-suppression/low-voltage at 24-48 hours = poor prognosis; 2) MRI (4-7 days) - basal ganglia-thalamus injury (severe), watershed pattern (moderate), normal (good); 3) MR spectroscopy - elevated lactate. Apgar score at 10 minutes <5 = high risk.

Long-term follow-up: motor (CP-MACS, GMFCS), cognitive (Bayley III at 18-24 months, IQ test at 6 years), language, audiology, ophthalmology (retinopathy), epilepsy. Multidisciplinary team: neonatologist, pediatric neurologist, physiotherapy, speech therapist, occupational therapy, education specialist. Early intervention (0-3 years), school readiness assessment (5-6 years), special education support.

Symptoms

Motor delay (sitting, walking)
Cerebral palsy signs (spasticity, hypotonia)
Seizure recurrence
Language and speech delay
Cognitive deficit (IQ <70)
Visual-auditory abnormalities

Risk Factors

Severe HIE (Sarnat III)
Persistent abnormal aEEG
MRI basal ganglia injury
10-minute Apgar <5
Neonatal seizure
Late initiation of cooling (>6 hours)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Motor delay or asymmetry
  • Recurrent seizures
  • Speech-language delay
  • School performance issues
  • Behavioral problems
  • Visual-auditory concerns

Treatment Methods

01
Multidisciplinary follow-up (motor, cognitive, language)
02
Bayley III (18-24 months), IQ (6 years)
03
Early intervention (0-3 years)
04
Physiotherapy and ergotherapy
05
Antiepileptic therapy (epilepsy)
06
Special education support

Which Department to Visit?

You can visit our Çocuk Sağlığı ve Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Çocuk Sağlığı ve Hastalıkları Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.