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Updated: Apr 18, 2026
Measurements of Motor Function and Other Clinical Outcome Parameters in Ambulant Children with Duchenne Muscular Dystrophy
Published on: January 12, 2019
Recognition and management of motor delay and muscle weakness in children
Joseph G Lurio1, Holly L Peay2, Katherine D Mathews3
1Albert Einstein College of Medicine, New York, NY, USA.
Insights
Early identification of neuromuscular disorders in children is crucial. Prompt diagnosis and intervention, including developmental surveillance and creatine kinase testing, improve outcomes and access to genetic counseling and therapy.
Area of Science:
- Pediatrics
- Neurology
- Genetics
Background:
- Diagnosis of pediatric neuromuscular disorders is often delayed, impacting therapeutic and genetic counseling opportunities.
- Early recognition of childhood weakness is essential for timely intervention.
Purpose of the Study:
- To outline a systematic approach for the early identification and diagnosis of neuromuscular disorders in young children.
- To emphasize the role of primary care clinicians in managing these conditions.
Main Methods:
- Caregiver concerns and developmental surveillance during well-child visits.
- Comprehensive family and medical history taking.
- Physical examination focusing on age-appropriate motor skills.
- Serum creatine kinase level measurement.
- Referral to early intervention and pediatric neurology.
Main Results:
- Delayed diagnosis leads to missed therapeutic and genetic counseling opportunities.
- Systematic evaluation including history, physical exam, and lab tests aids differentiation of weakness causes.
- Early intervention referral is recommended, with prompt neurology referral for specific red flags.
Conclusions:
- Primary care clinicians play a vital role in early detection, diagnosis navigation, and family support for pediatric neuromuscular disorders.
- Timely diagnosis and intervention are critical for improving long-term outcomes in affected children.
Abstract:
Diagnosis of neuromuscular disorders in young children is often delayed for years after symptoms emerge, resulting in missed opportunities for therapy and genetic counseling. Identification of the weak child begins with careful attention to caregiver concerns and developmental surveillance at well-child visits. Family and medical histories can differentiate inherited from acquired causes of weakness. Physical examination should include observation of ageappropriate motor skills such as pull-to-sit, sitting, rising to stand, and walking/running. Serum creatine kinase levels should always be measured in children exhibiting neuromuscular weakness. Referrals to early intervention programs should not be postponed pending definitive diagnosis. If motor delay does not improve with early intervention, referral to a pediatric neurologist for diagnostic assessment is recommended. Tongue fasciculations, loss of motor milestones, or creatine kinase level greater than three times the normal limit should prompt immediate neurology referral. Once a neuromuscular disorder is diagnosed, the primary care clinician can help the family navigate subspecialty visits and consultations, advocate for services in the school and home, and help them cope with the emotional stresses of caring for a child with special needs.
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