Motor Development of Children That Have Surgery as Newborns for Complex Congenital Heart Disease

Study Results

Results pending

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Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

78 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-05-31

Study Completion Date

2019-06-30

Brief Summary

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Infants requiring surgery in the neonatal period for complex congenital heart diseases are at risk for developmental problems. For infants with congenital heart diseases with admixture physiology and single ventricles, optimal circulation is associated with signs of adequate systemic perfusion and a systemic arterial oxygen saturation typically between 75% to 90%. Infants are often unable to withstand standardized developmental testing during early infancy due to medical fragility and sternal precautions after surgery. Evaluation of the quality of spontaneous movements and movement variability is a good alternative. The quality of general movements in early infancy is a valid predictor of neurological disorders in high risk infant groups and is assessed with short periods of video-recorded observations. This methodology has yet to be studied in infants with complex congenital heart disease that require surgery as neonates. For older infants, the Infant Motor Profile (IMP) is a promising tool to document developmental outcome.

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Detailed Description

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Congenital heart defects (CHD) are conditions present at birth and affect heart structure, function, and manner in which blood flows through the heart and to the rest of the body. The incidence of severe CHD is about 2.5 to 3/1,000 live births. With improvements in cardiac surgical technique and critical care medicine, the vast majority of babies with CHD are expected to survive to school age and beyond. However, these surgical and medical advances are also associated with increased risk for neurodevelopmental morbidity.

Traditionally, a quantitative approach measured gross motor development of infants at risk for delay, including children with complex congenital heart disease. These tools emphasize elicited responses; however, clinical use and validity may be limited by the infant's behavioral state, unstable physiological status, intolerance of handling, or sternal/surgical precautions. Alternatively, European clinicians working in the field of developmental neurology realized that variation and adaptability in motor behavior may assist in the evaluation of motor development. The application of motor variation and adaptability as a means to evaluate neuromotor condition in early infancy was significant for early detection of infants at high risk for developmental problems or cerebral palsy in a number of studies with high-risk infant groups. This form of evaluation has yet to be studied in infants with complex congenital heart diseases.

The proposed study aims to study motor development of two infant groups based on oxygen saturation targets after neonatal surgery and to study the validity of the assessment tools based on the quality of movement variation and adaptability, i.e., the General Movements Assessment (GMsA) and the Infant Motor Profile (IMP) in infants with complex congenital heart disease.

Hypothesis:

Baseline oxygen saturation after neonatal heart surgery in children with complex congenital heart diseases is a determinant of motor performance outcome at 18 months on the Infant Motor Profile.

Specific Objectives:

1. To determine developmental outcomes at 18 months in two infant groups based on oxygen saturation targets.
2. To validate specific neuromotor assessment tools that determine developmental outcome in two infant groups based on oxygen saturation targets.

Specific Aims:

1. To compare motor outcomes at 18 months measured with the IMP of two groups of infants who had surgery as neonates for complex congenital heart disease grouped by baseline oxygen saturation targets after the first surgery (≥ 90%; high saturation and \< 90%; low saturation, i.e., admixed lesions).
2. To describe the quality of general movements from birth through three months at five assessment points in infants with high oxygen saturation and infants with low oxygen saturation.
3. To describe motor development in terms of IMP-scores at 6, 12 and 18 months in infants with high oxygen saturation and infants with low oxygen saturation.
4. To explore the predictive value of GMsA at three months in a pooled group of infants with high oxygen saturation and low oxygen saturation with development outcome at 18 months assessed with:

1. Infant Motor Profile (IMP)
2. Alberta Infant Motor Scales (AIMS)
3. Motor Composite score of the Bayley Scales of Infant Development, 3rd edition (BSID-3)
4. Cognitive and Language composite scores of the BSID-3.
5. To determine the concurrent validity of the Infant Motor Profile (IMP) on the basis of comparison with:

1. Alberta Infant Motor Scales (AIMS) at 6, 12, and 18 months.
2. Bayley Motor Composite score at 18 months.

Conditions

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Heart Defects, Congenital

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Infants diagnosed with complex congenital heart diseases that require surgery during the neonatal period, ages 0-30 days
* Surgical care at Advocate Christ Medical Center/Advocate Children's Hospital, Oak Lawn, Il