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Natural History and Magnetic Resonance Imaging Follow-up in 9 Sturge-Weber Syndrome Patients and Clinical Correlation

PD Hinduja National Hospital and Medical Research Centre, Mahim, Mumbai, India, vrajeshudani{at}yahoo.co.in

Suresh Pujar, MD

PD Hinduja National Hospital and Medical Research Centre, Mahim, Mumbai, India

Pinki Munot, MD

PD Hinduja National Hospital and Medical Research Centre, Mahim, Mumbai, India

Shailendra Maheshwari, MD

PD Hinduja National Hospital and Medical Research Centre, Mahim, Mumbai, India

Nirad Mehta, MD

PD Hinduja National Hospital and Medical Research Centre, Mahim, Mumbai, India

The natural history of Sturge-Weber Syndrome is variable where some patients have refractory epilepsy and persistent neurologic deficits while others do well. Also, evolution of MRI abnormalities is largely unknown. This long-term follow-up study tries to address these two issues. This retrospective and later prospective study followed 9 children with confirmed SWS. Clinical details of seizures, stroke-like episodes, neurologic and developmental deficits were ascertained specifically. Patients were divided into those with onset below or after 6 months of age for analysis. Disease was classified as active or inactive and correlations were made with the use of aspirin. All past, as well as prospectively acquired imaging was reviewed by two independent blinded neuroradiologists and the images were analysed as ictal (temporally related to seizure/stroke-like event) or interictal. Degree and extent of leptomeningeal enhancement was specifically looked for. Four boys and five girls were followed up for a mean of 6.1 years. Disease activity subsided in 8/9. Early-onset patients had a severe early course with significant residual deficits while late-onset patients did uniformly well. In 6 patients where aspirin was used, a stable course ensued. There was a significant increase in degree/extent of leptomeningeal enhancenment during an ictus which returned to the baseline in the interictal state in all 7 patients where both images were available. Focal cerebral atrophy worsened in early-onset cases. In conclusion, SWS patients with onset of seizures/stroke-like events before 6 months of age seem to do worse with a severe early course and persistent neurologic deficits. However the course stabilizes after 5 years of age in most. Late-onset SWS patients have a benign course. Aspirin use is associated with a stable course though further studies are needed. The leptomeningeal enhancement appears to increase during acute events before returning to baseline suggesting that extent of the disease is probably best judged during the interictal state.

Key Words: Sturge-Weber syndrome • MRI • natural history

Journal of Child Neurology, Vol. 22, No. 4, 479-483 (2007)
DOI: 10.1177/0883073807300526


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