Related Experiment Video
Updated: Aug 5, 2026
Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Impact of moderate hyperbilirubinemia on the neuromotor trajectory of term infants: A General Movements Assessment
Deniz Erden1, Safa Mete Dağdaş2, Gunce Basarir3
1Department of Pediatrics, Tepecik Training and Research Hospital, University of Health Sciences, İzmir, Türkiye; Department of Pediatric Endocrinology, Dokuz Eylül University Faculty of Medicine, İzmir, Türkiye.
Insights
Term infants treated for moderate hyperbilirubinemia showed more abnormal motor patterns at 2 months. General Movements Assessment (GMA) can help monitor neurodevelopment in this intermediate-risk group.
Area of Science:
- Neonatology
- Neurodevelopmental Pediatrics
- Movement Analysis
Background:
- Moderate neonatal hyperbilirubinemia's neurodevelopmental effects are not well-defined.
- Prechtl's General Movements Assessment (GMA) is sensitive to early motor quality.
- The utility of GMA in intermediate-risk infants is understudied.
Purpose of the Study:
- To assess if term infants treated for moderate hyperbilirubinemia exhibit altered spontaneous motor patterns.
- To evaluate motor repertoires during the writhing and fidgety movement periods.
- To determine the role of GMA in monitoring neurodevelopmental outcomes in this cohort.
Main Methods:
- A prospective longitudinal cohort study of 42 term infants.
- Infants were divided into a hyperbilirubinemia group (n=21, phototherapy) and a control group (n=21).
- Standardized GMA was used to evaluate spontaneous motor patterns at 2 and 4 months by blinded assessors.
Main Results:
- At 2 months, abnormal movements were significantly more frequent in the hyperbilirubinemia group (57.1%) compared to controls (19.0%; p=0.012).
- At 4 months, abnormal fidgety movements were three times more prevalent in the hyperbilirubinemia group (35.3%) than controls (10.5%; p=0.095).
- No absent fidgety movements were observed in either group.
Conclusions:
- Term neonates treated for moderate hyperbilirubinemia show transient neuromotor alterations at 2 months.
- Serial GMA can aid in early neurodevelopmental surveillance for this intermediate-risk population.
- These findings support integrating GMA into clinical practice for infants with moderate hyperbilirubinemia.
Background:
The neurodevelopmental impact of moderate neonatal hyperbilirubinemia remains a clinical grey area. Prechtl's General Movements Assessment (GMA) is a highly sensitive tool for monitoring early motor quality, but its utility in this intermediate-risk population is understudied. This study aimed to evaluate whether term infants with phototherapy-treated moderate hyperbilirubinemia exhibit altered spontaneous motor repertoires during the writhing and fidgety movement periods.
Methods:
In this prospective longitudinal cohort study, forty-two term infants (≥ 37 weeks' gestation) were divided into two groups: Group I (n = 21) received phototherapy for hyperbilirubinemia according to guidelines; Group II (n = 21) consisted of healthy term controls. Spontaneous motor patterns were independently evaluated using standardized GMA at 2 months (writhing period) and 4 months (fidgety period) by certified assessors blinded to clinical histories.
Results:
At 2 months, abnormal movement patterns, predominantly poor repertoire, were significantly more frequent in the hyperbilirubinemia group than in controls (57.1% vs. 19.0%; p = 0.012). At 4 months, although the statistical significance narrowed (p = 0.095), the prevalence of abnormal fidgety movements remained three times higher in Group I (35.3%) than in Group II (10.5%). No absent fidgety patterns were recorded.
Conclusions:
Term neonates requiring phototherapy for moderate hyperbilirubinemia demonstrate a higher prevalence of transient neuromotor alterations at 2 months. These findings support the clinical integration of serial GMA to ensure early neurodevelopmental surveillance for this frequently overlooked intermediate-risk cohort.
