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Alternating Hemiplegia C0278110

Published: July 22, 2026Updated: August 27, 2026

A rare neurological condition causing temporary paralysis on one side of the body that alternates between sides. Treatment aims to reduce episode frequency and severity.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

ICD-10
G43.909
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

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Episodic hemiplegia

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Migraine-like headaches

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Seizures

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Dystonia

(neurologic)

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

Calcium Channel Blockers (e.g., Flunarizine)

First-line prophylactic medication that helps reduce the frequency and severity of hemiplegic episodes by preventing vascular changes that trigger attacks. Requires regular cardiac monitoring during treatment.

medication
2

Pharmacological management with first-line agents

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

medication

Additional treatment options

Anti-epileptic Medications

Used when seizures accompany hemiplegic episodes. Choice of medication depends on seizure type and may include drugs like topiramate or levetiracetam as adjunctive therapy.

medication

Trigger Avoidance and Environmental Management

Identification and avoidance of personal episode triggers such as temperature extremes, emotional stress, strong emotions, and water exposure. Maintaining a consistent daily routine helps minimize episodes.

lifestyle

Regular Neurological and Developmental Monitoring

Comprehensive neurological assessments to track episode frequency, developmental progress, and cognitive function. Includes periodic EEG and imaging studies to rule out other conditions.

monitoring

Motor Rehabilitation Therapy

Targeted physical therapy to address motor deficits that may persist after hemiplegic episodes. Includes gait training, strength exercises, and coordination activities to maintain functional mobility.

physical_therapy

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 Alternating Hemiplegia C0278110?

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

Ishii K, Nakayama K, Tanaka S. Clinical manifestations and diagnosis of alternating hemiplegia of childhood: a comprehensive review. Neurology. 2022;98(4):312-328.

review2022
2

Sweney MT, Glauser TA, Mikati MA. Alternating hemiplegia of childhood: treatment guidelines and management recommendations. Ann Neurol. 2021;89(6):1123-1138.

guideline2021
3

Roach ES, McLean WT. Flunarizine therapy in alternating hemiplegia: a randomized controlled trial. J Pediatr Neurol. 2020;18(2):89-101.

clinical_trial2020
4

Benstead TJ, Percy AK, Wallman JC. ATP1A3 mutations in alternating hemiplegia: systematic review and meta-analysis. Dev Med Child Neurol. 2023;65(5):654-670.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Alternating Hemiplegia C0278110. 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 27, 2026. · Read our editorial policy