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Cerebral infarction in Noonan syndrome
S Robertson1, B Tsang, S Aftimos
1Starship Children's Hospital, Auckland, New Zealand.
American Journal of Medical Genetics
|July 11, 1997
Summary
Severe Noonan syndrome in an infant led to two cerebral infarctions before six months of age. No cause was identified, differing from previous stroke associations in Noonan syndrome.
Area of Science:
- Pediatric Neurology
- Genetics
- Cardiology
Background:
- Noonan syndrome is a genetic disorder affecting multiple systems.
- Cerebral infarction (stroke) is a known, though uncommon, complication.
- Previous cases often linked stroke to vascular malformations.
Observation:
- A severe case of Noonan syndrome presented with chylothoraces and hepatosplenomegaly.
- The infant experienced two episodes of cerebral infarction before 6 months of age.
- No underlying vascular malformation or other cause for stroke was identified.
Findings:
- This case highlights a potential association between severe Noonan syndrome and cryptogenic cerebral infarction.
- The absence of typical risk factors, such as vascular malformations, is notable.
- Early-onset stroke in infants with Noonan syndrome warrants further investigation.
Implications:
- Suggests a need to consider stroke in infants with severe Noonan syndrome, even without apparent vascular anomalies.
- May prompt research into novel mechanisms of cerebrovascular complications in Noonan syndrome.
- Emphasizes the importance of early diagnosis and management of neurological events in affected infants.