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HIV encephalopathy with bilateral lower limb spasticity: gross motor function and antiretroviral therapy
Theresa N Mann1,2, Barbara Laughton3, Kirsten A Donald4
1Division of Neurosurgery, Department of Surgery, University of Cape Town, Cape Town, South Africa.
Insights
Gross motor function in children with human immunodeficiency virus encephalopathy (HIVE) and bilateral lower limb (BLL) spasticity varies widely. Early antiretroviral therapy (ART) factors did not predict current gross motor function in this study.
Area of Science:
- Pediatrics
- Neurology
- Infectious Diseases
Background:
- Human immunodeficiency virus encephalopathy (HIVE) can cause neurological deficits, including spasticity in children.
- Bilateral lower limb (BLL) spasticity significantly impacts gross motor function in affected children.
- Understanding factors influencing motor function is crucial for targeted interventions.
Purpose of the Study:
- To characterize gross motor function in children with HIVE and BLL spasticity.
- To explore the relationship between early antiretroviral therapy (ART) parameters (age, CD4 percentage, viral load) and current gross motor function.
- To identify potential predictors of functional outcomes in this population.
Main Methods:
- A cohort of 30 ambulant children with HIVE and BLL spasticity was studied.
- Data on clinical parameters, including ART initiation, were extracted from medical records.
- Gross motor function was quantitatively assessed using the Gross Motor Function Measure (GMFM-88).
Main Results:
- The study included 14 males and 16 females with a median age of 8 years.
- ART was initiated early (median 7 months) with significant viral suppression indicated by CD4 percentage and viral load.
- While overall GMFM-88 scores showed variability, no significant associations were found between ART initiation parameters and gross motor function outcomes.
Conclusions:
- Gross motor function deficits in children with HIVE and BLL spasticity present a broad spectrum of severity.
- Early ART initiation parameters, including age, CD4 percentage, and viral load, were not predictive of current gross motor function in this cohort.
- Further research is needed to identify factors that influence long-term motor outcomes in children with HIVE.
Aim:
To describe gross motor function in children with bilateral lower limb (BLL) spasticity due to human immunodeficiency virus encephalopathy (HIVE), and to investigate the association between age, CD4 percentage, and viral load at initiation of antiretroviral therapy (ART) and current gross motor function.
Method:
Thirty ambulant children with HIVE and BLL spasticity were recruited. Clinical parameters, including ART, were obtained from medical records. Gross motor function was assessed using the 88-item Gross Motor Function Measure (GMFM-88).
Results:
The participant group was comprised of 14 males and 16 females (median age 8y; interquartile range [IQR] 7-11y). ART was initiated at a median age of 7 months (IQR 5-11mo) with a median CD4 percentage of 4.7% (IQR 2.3-8.0) and viral load of log10 6.0 (IQR 5.6-6.4). The median total GMFM-88 score was 89% (IQR 78-94%), with a wide range of scores in the 'Standing' domain (26-97%) and 'Walking, Running, and Jumping' domain (8-99%). No associations were detected between age at initiation of ART, CD4 percentage, or viral load and total GMFM-88 score.
Interpretation:
Limitations in gross motor function in children with HIVE and BLL spasticity range from mild to severe. ART initiation factors were not able to predict functional status in this sample.
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