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Cognitive abilities associated with the Silver-Russell syndrome
1Department of Psychiatry, Prince of Wales Hospital, Shatin, Hong Kong.
Archives of Disease in Childhood
|December 1, 1994
Summary
Cognitive impairments are common in Silver-Russell syndrome, with about half of affected children experiencing significant challenges. Many children show developmental delays and learning disabilities, impacting their educational needs.
Area of Science:
- Pediatric Endocrinology
- Neurodevelopmental Disorders
- Genetics
Background:
- Silver-Russell syndrome (SRS) is a rare genetic disorder characterized by prenatal and postnatal growth restriction.
- Cognitive development in SRS is not fully understood, with existing literature showing varied findings.
Purpose of the Study:
- To investigate the prevalence and nature of cognitive impairments in a cohort of children with Silver-Russell syndrome.
- To assess general intelligence, academic attainments, and cognitive processing in SRS patients.
Main Methods:
- A cohort of 25 children (20 boys, 5 girls) aged 6.0–11.8 years with SRS was evaluated.
- Standardized assessments included measures of general intelligence (IQ), reading and arithmetic skills, and cognitive processing.
- Birth weight, current age, height, and head circumference were recorded.
Main Results:
- Children had a mean age of 8.8 years and significant growth restriction (height SD score -2.26).
- Mean full-scale IQ was 86 (SD 24), with 32% falling within the learning disability range (IQ < 70).
- 40% exhibited reading delays of at least 24 months below chronological age; head circumference correlated with IQ.
Conclusions:
- Approximately half of children with Silver-Russell syndrome exhibit significant cognitive impairments.
- Developmental delays and learning disabilities are prevalent, necessitating early identification and support.
- Findings highlight the importance of comprehensive cognitive and educational assessments in SRS management.