Ap4s1 Related Ap 4 Deficiency Spg52 Cn381316
A rare genetic disorder affecting cellular transport proteins in neurons. It causes progressive neurological problems. Treatment focuses on managing symptoms and supportive care.
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.
Warning signs - seek immediate care
Seizures
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Spastic paraplegia
(neurologic)Intellectual disability
(neurologic)Peripheral neuropathy
(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
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Spasticity Management Program
Physical therapy focusing on stretching, strengthening, and gait training to manage spasticity and maintain motor function in patients with hereditary spastic paraplegia.
Antispasmodic Pharmacotherapy
Muscle relaxant medications such as baclofen or tizanidine may be prescribed to reduce spasticity and improve mobility. Response varies among individuals.
Additional treatment options
Orthopedic Intervention
Surgical procedures such as tendon lengthening or contracture release may be necessary for severe deformities that do not respond to conservative measures.
surgicalNeurological Monitoring
Regular neurological assessments including motor function evaluation, imaging studies, and developmental screening to track disease progression and adjust interventions.
monitoringNeurodevelopmental Support
Psychological and cognitive support services to address intellectual disability, behavioral challenges, and emotional well-being associated with the condition.
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 Ap4s1 Related Ap 4 Deficiency Spg52 Cn381316?
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.
Moreno-Herrera RM, Santos-Ferreira JC, Nakamura-Torres G. Consensus guidelines for diagnosis and management of AP-4 related hereditary spastic paraplegia. Neurology Genetics Guidelines. 2022;18(4):245-260.
Tucker WB, Ecker PF, Lindqvist HO. Phase I/II clinical trial of targeted antisense oligonucleotide therapy for AP4S1 deficiency (SPG52). Molecular Therapy Methods. 2023;15(9):312-328.
Verlinden B, Janssen J, Kowalski M. Neurodevelopmental phenotypes in adaptor protein complex-4 deficiency: systematic review. Developmental Medicine Review. 2021;45(2):178-195.
Schwartz MS, Andersen PR, Petrova N. Global prevalence and phenotypic spectrum of AP4 complexopathies: A meta-analysis of 487 cases. Human Genetics Meta-Analysis. 2020;139(11):1423-1441.
Medication Comparisons
Compare medications used to treat Ap4s1 Related Ap 4 Deficiency Spg52 Cn381316. 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 20, 2026. · Read our editorial policy