The Long-term Consequences of Neonatal Encephalopathy in the Hypothermia Era

Trial statusNot yet recruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age8-11
SponsorMcGill University Health Centre/Research Institute of the McGill University Health Centre

About this trial

The goal of this study is to characterize the ability and related brain profiles of children with Neonatal encephalopathy (NE) - Therapeutic hypothermia (TH) at 9 years old. The main questions it aims to answer are:

1. Compare executive function, attention, social cognition, behaviour, anxiety, self-esteem, and peer problems between children with NE-TH and matched peers without NE. 2. Compare brain volumes, cortical and subcortical morphology, white matter microstructure, and myelination between children with NE-TH and matched peers without NE. 3. Evaluate the associations of perinatal risk factors and structural brain integrity with neuropsychological deficits to inform about the potential aggravating and protective factors for neuropsychological functioning.

Participants will complete one study visit to perform standardized evaluations and a brain MRI. Parents of participants will be invited to complete a series of questionnaires during this study visit or at a moment of their choice virtually.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

born between 2014 and 2018

received whole-body cooling to an esophageal temperature of 33.5°C initiated within the first 6 hours of life, continued for 72 hours, and then they were slowly rewarmed received TH for moderate or severe NE

Disqualifiers

congenital infections

genetic or metabolic disorders

major brain malformations (e.g., lissencephaly) and

any contraindication for MRI (e.g., metal implant, claustrophobia)

Trial population

Existing clinical cohort of children born between 2014 and 2018, who received TH for NE treated at the two largest neonatal intensive care units and neonatal follow-up programs in Quebec (Canada), the Montreal Children's Hospital (MCH) of the McGill University Health Centre and the Centre Hospitalier Universitaire Ste-Justine (CHUSJ).

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • Therapeutic hypothermia

    Procedure/Surgery

    whole-body cooling to an esophageal temperature of 33.5°C initiated within the first 6 hours of life, continued for 72 hours, and then they were slowly rewarmed for moderate or severe NE

Treatment groups

198 Participants
are divided into 2 treatment groups
Group A: Intervention group1 intervention
Group B: Control group0 interventions

Trial outcomes

Primary outcomes

1

Higher order cognitive abilities

Estimated IQ (Wechsler Abbreviated Scale of Intelligence 2nd ed. \[WASI-2\]), inhibition (Stroop test), planning (Tower - Delis-Kaplan Executive Function System \[D-KEFS\] and Rey-Osterrieth Complex Figure), impulsivity (Conner Continuous Performance Test - 3rd Ed \[CPT-3\]), working memory (Digit span), and word retrieval (verbal fluency - D-KEFS). Specific attentional skills; immediate (Digit Span) and sustained attention (CPT-3). Visual memory (Rey-Osterrieth Complex Figure). To characterize the ability to understand that others have thoughts, ideas, and feelings, and how emotion relates to social context, as well as the ability to recognize affect (Theory of Mind and Affect Recognition subtests).

Time frame
DAY 1
2

Psycho-emotional abilities

Self-esteem (Self-Concept Inventory from the Beck Youth Inventories-II), children's anxiety and emotional regulation (Spence Children's Anxiety Scale, the Multidimensional Anxiety Scale for Children, and the Difficulties in Emotion Regulation Scales). Predominance of profiles (e.g., predominantly affective, cognitive, or generalized) will be examined following an in-depth interpretation of the cognitive and psycho-emotional outcomes.

Time frame
DAY 1
3

Motor skills

Motor skills will be evaluated using the Movement Assessment Battery for Children-2nd Ed.in children without CP. In children with CP, motor skills will be evaluated with the Gross Motor Function Measure and subsequently be classified using the Gross Motor Function Classification System and the Manual Ability Classification System.Visual-motor integration will be assessed with the Berry-Buktenica Developmental Test of Visual-Motor Integration.

Time frame
DAY 1
4

Functional profile

Adaptive Behaviour Assessment Systems 3rd Ed.

Time frame
DAY 1

Secondary outcomes

Other outcomes

1

Sex

determined by the physical appearance of genitalia recorded at birth

Time frame
DAY 1
2

Gender

self-reported by the child

Time frame
DAY 1
3

Socio-economic status

Maternal Education, employment, income and ethnicity

Time frame
DAY 1
4

Medical history of child

prenatal, perinatal, and postnatal factors extracted from existing clinical and research databases

Time frame
DAY 1

Sponsors and contacts

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