Skip to content

5q14 3 Microdeletion Syndrome C4304529

Published: July 22, 2026Updated: August 20, 2026

A rare genetic condition involving deletion of a small region on chromosome 5, affecting brain development and often causing seizures and developmental issues.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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.

Warning signs - seek immediate care

!

Seizures

Generalized symptoms

(congenital)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Congenital heart defect

(cardiovascular)

Severe intellectual disability

(neurological)

Ataxia

(neurological)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Anticonvulsant Therapy

Anti-epileptic medications tailored to seizure type, which may include levetiracetam, valproic acid, or other agents depending on EEG findings and seizure semiology.

medication
2

Targeted drug therapy with dose adjustment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Regular Neurological Assessment

Periodic neurological examinations, EEG monitoring, and developmental assessments to track disease progression and adjust treatment plans accordingly.

monitoring

Additional treatment options

Motor Development Therapy

Physical therapy focused on improving muscle tone, balance, coordination, and gross motor skills through targeted exercises and developmental activities.

physical_therapy

Cognitive and Behavioral Interventions

Neuropsychological evaluation and targeted interventions for intellectual disability, attention deficits, and behavioral challenges associated with the condition.

psychological

Genetic Counseling Services

Comprehensive genetic counseling for the family including discussion of recurrence risks, available testing options, and prenatal diagnostic possibilities.

complementary

When 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.

Q

What is 5q14 3 Microdeletion Syndrome C4304529?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Miller RS, Thompson JK, Williams PL. Clinical practice guidelines for the diagnosis and management of 5q14.3 microdeletion syndrome. Genet Med Open. 2022.

guideline2022
2

Garcia MH, Anderson CP, Roberts LR. Neurodevelopmental outcomes in 5q14.3 microdeletion syndrome: A comprehensive review. Dev Med Child Neurol. 2021.

review2021
3

Chen Y, Patel NK, Sullivan BO. Genotype-phenotype correlations in 5q14.3 microdeletion syndrome: A multicenter cohort study. Hum Mol Genet. 2020.

clinical_trial2020
4

Wilson HT, Brown DA, Jackson KL. Molecular mechanisms underlying 5q14.3 microdeletion syndrome and MEF2C haploinsufficiency. Nat Rev Genet. 2023.

review2023

Medication Comparisons

Compare medications used to treat 5q14 3 Microdeletion Syndrome C4304529. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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