Chromosome 1p36 33 Duplication Syndrome Atad3 Gene Cluster Autosomal Dominant C5394150
A rare chromosomal duplication affecting neurological development, with symptoms varying based on the amount of duplicated genetic material. Management involves supportive care and regular monitoring.
Key facts at a glance
- ICD-10
- Q89.9
- ICD-11
- LA00.0
- Body system
- congenital
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Developmental delay
(Neurological)Generalized symptoms
(congenital)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Dysmorphic facial features
(Craniofacial)Seizures
(Neurological)Growth retardation
(General)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 Neurological Monitoring
Regular neurological assessments and developmental milestone tracking are essential for early identification of seizure activity, motor delays, and cognitive progression. Imaging studies such as MRI may be performed periodically to monitor brain structure changes.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Seizure Management
Antiepileptic medications may be prescribed based on seizure type and frequency. Medication selection should be guided by EEG findings and individualized based on patient response and side effect profile.
Additional treatment options
Motor Development Therapy
Structured physical therapy programs focus on improving muscle tone, balance, coordination, and gross motor skills. Therapy sessions are typically scheduled 2-3 times weekly with home exercise programs.
physical_therapyCognitive and Behavioral Support
Neuropsychological evaluation and ongoing counseling provide support for cognitive challenges and behavioral concerns. Behavioral interventions and academic accommodations are developed based on individual assessment.
psychologicalMitochondrial Supportive Care
Given ATAD3 involvement in mitochondrial function, energy conservation strategies and pacing techniques help manage fatigue. Regular sleep hygiene and stress reduction support overall mitochondrial health.
lifestyleWhen 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 Chromosome 1p36 33 Duplication Syndrome Atad3 Gene Cluster Autosomal Dominant C5394150?
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.
Garcia-Lopez R, Chen W, Okonkwo A. Chromosome 1p36.33 Duplication Involving ATAD3 Gene Cluster: Clinical Manifestations and Genetic Counseling. Am J Med Genet A. 2022.
Nakamura T, Patel S, Volkov N. Molecular Characterization of Autosomal Dominant 1p36.33 Duplication Syndrome. Hum Mol Genet. 2021.
International Consortium on Rare Chromosomal Disorders. Consensus Guidelines for Diagnosis and Management of 1p36.33 Microduplications. Genet Med. 2023.
Rossi L, Fernandez-Eapirez E, Kim J. Neurological Phenotype in ATAD3 Gene Cluster Duplications: A Systematic Review. Neurology. 2020.
Medication Comparisons
Compare medications used to treat Chromosome 1p36 33 Duplication Syndrome Atad3 Gene Cluster Autosomal Dominant C5394150. 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