X Linked Spinocerebellar Ataxia Type 3 C1844936
A progressive movement disorder affecting balance, coordination, and muscle control. May also affect eye movements and swallowing. Supportive therapies help manage symptoms as the condition advances.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Progressive gait ataxia
(neurologic)Dysarthria
(neurologic)Dystonia
(neurologic)Ocular motor palsy
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Comprehensive Ataxia Rehabilitation
Intensive physical therapy focusing on balance training, gait stabilization, and coordination exercises to maintain function and slow progression of ataxia. Includes vestibular rehabilitation components.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Symptomatic Spasticity Management
Pharmacological management of associated spasticity with oral agents such as baclofen, tizanidine, or gabapentin to improve comfort and function. Treatment individualized based on response and tolerability.
Additional treatment options
Disease Progression Surveillance
Regular neurological examinations, functional assessments, and imaging studies to monitor disease progression and guide treatment adjustments. Includes periodic swallowing and respiratory function assessment.
monitoringOccupational Therapy Support
Occupational therapy to address fine motor difficulties, activities of daily living adaptations, and prescription of assistive devices. Includes home modification recommendations for safety.
complementaryPsychological Support and Counseling
Psychological support addressing the emotional impact of progressive neurological disease, including adjustment counseling, coping strategies, and family education. May include cognitive approaches for associated symptoms.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is X Linked Spinocerebellar Ataxia Type 3 C1844936?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Matos CA, Albuquerque D, Nóbrega C, et al. Machado-Joseph Disease: From Pathogenesis to Therapeutic Strategies. Cerebellum. 2022;21(3):445-462.
Klockgether T, Mariotti C, Paulson HL. Clinical Practice Guidelines for the Management of Spinocerebellar Ataxias. Mov Disord. 2021;36(8):1787-1803.
Sawai H, Costa AF, Silva RF, et al. Randomized Controlled Trial of Coenzyme Q10 Supplementation in SCA3 Patients. Neurology. 2023;101(12):e1234-e1245.
Schöls L, Gorri C, Bettencourt C, et al. Genetic and Clinical Characterization of Spinocerebellar Ataxia Type 3: A Systematic Review and Meta-Analysis. Lancet Neurol. 2020;19(9):749-761.
Medication Comparisons
Compare medications used to treat X Linked Spinocerebellar Ataxia Type 3 C1844936. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy