Related Experiment Video
Updated: Mar 29, 2026
Author Spotlight: Repetitive Transcranial Magnetic Stimulation Combined with Movement Observation in Cerebral Palsy
Published on: August 9, 2024
Treatment Outcomes and Predictive Factors in Pediatric Ocular Myasthenia Gravis
Insights
Pediatric ocular myasthenia gravis (OMG) most commonly presents with ptosis. Most young patients achieve disease control with medication, and no predictive factors for resolution or amblyopia were identified.
Area of Science:
- Ophthalmology
- Neurology
- Pediatrics
Background:
- Ocular myasthenia gravis (OMG) is a rare autoimmune disorder affecting the neuromuscular junction, primarily presenting with ptosis and/or strabismus in pediatric patients.
- Understanding the clinical course and outcomes in this population is crucial for effective management.
Purpose of the Study:
- To analyze demographic data, clinical features, diagnostic methods, treatments, and outcomes in children with ocular myasthenia gravis.
- To identify potential predictors for disease resolution, generalization, or the development of amblyopia.
Main Methods:
- A retrospective descriptive study was conducted on 14 pediatric patients (<15 years) diagnosed with ocular myasthenia gravis between 2006 and 2012.
- Univariate analysis was employed to assess factors influencing clinical outcomes.
Main Results:
- The most frequent initial symptoms were ptosis (100%) and strabismus (67%).
- The mean age of onset was 6.96 years, with a mean follow-up of 6.30 years.
- No patients progressed to generalized myasthenia gravis, and only one developed amblyopia. Presenting age, gender, initial strabismus, and positive pharmacological tests did not predict outcomes.
Conclusions:
- Ptosis is the predominant clinical manifestation of pediatric ocular myasthenia gravis.
- Medication alone was sufficient for disease control in most cases.
- No significant predictive factors were found for disease resolution or the development of amblyopia in this cohort.
Objective:
To determine demographic data, clinical presentations, investigations, treatment regimens, and clinical outcomes in pediatric ocular myasthenia gravis patients, and to find predictive factors for clinical outcomes such as resolution of disease, development of generalized symptoms, or final amblyopia.
Material And Method:
This retrospective descriptive study of the medical records of 14 patients (male 6,female 8) less than 15 years that had ocular myasthenia gravis at Chiang Mai University Hospital between January 2006 and December 2012 was done. Univariate analysis was used to evaluate the predictive factors for clinical outcomes.
Results:
Mean age of onset was 6.96±4.65 years (range 0.58-14 years). All patients presented with ptosis (100%) and 67% with strabismus. The mean oftotalfollow-up time is 6.30±3.84 years (range 1.25-14.25 years). None ofthe patients developed generalize myasthenia gravis. Only one patient had amblyopia at final presentation. Presenting age, gender strabismus at initial presentation, and positive neostigmine or edrophonium test did not affect resolution of disease nor final amblyopia.
Conclusion:
The most common clinical presentation in pediatric OMG was ptosis. Most patients could control the disease only by medications. There were no predictive factors affecting resolution of disease nor final amblyopia.
Related Concept Videos
01:20Myasthenia Gravis: Overview and Treatment
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
01:15Myasthenia Gravis: Diagnostic Tests
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
01:28Disorders of the Skeletal Muscle
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
01:27Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
01:28Angle Closure Glaucoma: Treatment
01:11Direct-Acting Cholinergic Agonists: Therapeutic Uses