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Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats

Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats

Published on: April 21, 2017

Clock drawing in children with perinatal stroke.

Omid Yousefian¹, Angela O Ballantyne¹, Alex Doo¹

¹Department of Neurosciences, University of California, San Diego School of Medicine, La Jolla, California.

Pediatric Neurology

|May 24, 2015

Summary

The Clock Drawing Test can detect spatial neglect in children with perinatal stroke, but this deficit may resolve with age. Early neurocognitive data has limitations in predicting long-term outcomes.

Keywords:

clock drawing perinatal stroke spatial neglect

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Area of Science:

Neuroscience
Developmental Psychology
Pediatric Neurology

Background:

Children with perinatal stroke often exhibit contralateral spatial neglect.
Spatial neglect is a neurological condition affecting awareness of one side of space.

Purpose of the Study:

To evaluate the efficacy of the Clock Drawing Test (CDT) in identifying spatial neglect in children with perinatal stroke.
To adapt the CDT for pediatric use by analyzing right- and left-sided drawing errors.

Main Methods:

A cross-sectional study involved 38 children (6-21 years) with perinatal unilateral brain lesions and 179 age-matched controls.
Participants completed a free-drawn Clock Drawing Test.
An adapted scoring system was developed to differentiate left- and right-sided errors.

Main Results:

Children with right hemisphere lesions showed more errors on both sides of the clock compared to controls across all age groups.
Younger children (6-8 years) with right hemisphere lesions demonstrated significant left-sided neglect.
By adolescence (15-21 years), right hemisphere lesion subjects performed similarly to controls, indicating resolution of neglect.

Conclusions:

The Clock Drawing Test is effective in identifying spatial neglect in children with early-onset unilateral brain damage.
Spatial neglect in children with perinatal stroke may improve or resolve over time due to brain plasticity.
Early neurocognitive assessments have limitations in predicting long-term functional outcomes in this population.