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Multiple Sclerosis with Onset Younger Than 10 Years in Turkey
Zeynep Öztürk1, Ünsal Yılmaz2, Bahadır Konuşkan3
1Department of Pediatric Neurology, Gazi University, Faculty of Medicine, Ankara, Turkey.
Insights
Early onset multiple sclerosis (MS) in children under 10 presents differently based on age at onset. Younger children (≤7 years) experience more motor symptoms and attacks, suggesting a more inflammatory disease course.
Area of Science:
- Pediatric Neurology
- Neuroimmunology
- Demyelinating Diseases
Background:
- Multiple Sclerosis (MS) is a chronic autoimmune disease affecting the central nervous system.
- Early Onset Multiple Sclerosis (EOMS) in children under 10 years old is rare and poorly understood.
- Characterizing EOMS is crucial for early diagnosis and management.
Purpose of the Study:
- To define the demographics and clinical features of pediatric MS patients with onset before age 10.
- To compare disease characteristics between preschool-onset (≤7 years) and school-age onset (>7 years) EOMS.
- To understand the disease course and disability in EOMS.
Main Methods:
- Retrospective review of EOMS patients from 27 child neurology centers.
- Comparison of clinical presentation and disease course between two age groups: ≤7 years and >7 years.
- Analysis of demographic data, clinical characteristics, and disability levels.
Main Results:
- 30 children (mean onset 8.1 years) were included; 96.7% had relapsing-remitting MS.
- Preschool-onset EOMS (≤7 years) showed a predilection for motor symptoms (54.5%) and encephalopathy (45.5%).
- School-age onset EOMS (>7 years) more frequently presented with brainstem (42.1%), sensory (26.3%), and optic nerve (26.3%) involvement.
Conclusions:
- Early onset MS in children ≤7 years is associated with a higher rate of motor symptoms and increased attacks in the first year.
- These findings suggest a potentially more inflammatory disease phenotype in the youngest EOMS cohort.
- Age at onset significantly influences the clinical presentation of EOMS.
Objective:
To identify the demographics, clinical characteristics, disease course, treatment patterns, and disability levels of multiple sclerosis (MS) patients with onset under the age of 10 years (early onset multiple sclerosis, EOMS).
Methods:
EOMS patients were reviewed retrospectively in detailed records from 27 child neurology centers. Patients with preschool (≤7 years) and school age (>7 years) onset were compared.
Results:
There were 30 children (16 girls, 14 boys) who have disease onset between 4 and 10 (mean8.1 ± 1.8) years. MS was relapsing-remitting in 29 (96.7%) and primary progressive in one (3.3%) of the patients. In patients with onset ≤7 years, motor symptoms (54.5%) and encephalopathy (45.5%) predominated, while in those with onset >7 years brainstem (42.1%), sensory (26.3%), and optic nerve (26.3%) involvement were the most frequent presentations.
Conclusions:
MS starting ≤7 years differs from the 7-10-year-old group by the higher rate of motor symptoms and more attacks in the first year: the latter suggests a more inflammatory character for EOMS.
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