BUFFALO, N.Y. -- Magnetic resonance images (MRI) of patients diagnosed with multiple sclerosis in childhood show that pediatric onset multiple sclerosis is more aggressive, and causes more brain lesions, than MS diagnosed in adulthood, researchers at the University at Buffalo have reported.
Interestingly, however, patients with pediatric-onset MS -- which comprise up to 5 percent of total MS cases -- develop disabilities at a slower pace than patients with adult-onset MS, the data showed.
"Patients with pediatric-onset MS have three times as many relapses annually than patients with adult-onset disease, which suggests there is greater disease activity in this population," said Bianca Weinstock-Guttman, MD, associate professor of neurology in the UB School of Medicine and Biomedical Sciences and corresponding author.
"But surprisingly, the average time to reach the secondary progressive phase of the disease is longer in patients who develop MS in childhood than in adult onset MS," she continued. "Reaching the next stage of disability is almost 10 years longer in pediatric-onset patients."
Weinstock-Guttman directs the Pediatric Multiple Sclerosis Center of Excellence located at Women and Children's Hospital, and the William C. Baird MS Center in Buffalo General Hospital (BGH), both Kaleida Health affiliates and UB teaching hospitals.
Eluen A. Yeh, MD, UB assistant professor of neurology and co-director in the Pediatric Multiple Sclerosis Center, is first author on the study, which was published online Nov. 5 in Brain.
The National Multiple Sclerosis Society estimates that 8,000 to 10,000 children (defined as up to 18 years old) in the U.S. have multiple sclerosis, and another 10,000 to 15,000 have experienced at least one symptom suggestive of MS. The disease causes demyelination -- destruction of the sheath that protects and insulates nerve fibers. Breaks in the myelin sheath disrupt the flow of electrical impulses, causing loss of
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