Anti Gq1b Antibody Positivity C5676718
An autoimmune condition where antibodies target GQ1b gangliosides in cranial nerves, particularly affecting eye movement. Associated with Miller Fisher syndrome. Treatment includes immunotherapy such as IVIG or plasmapheresis.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Ophthalmoplegia
Altered consciousness
Respiratory failure
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Varies
Ataxia
(neurologic)Areflexia
(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
Intravenous Immunoglobulin (IVIG)
IVIG is the cornerstone of treatment for anti-GQ1b antibody syndromes including Miller Fisher syndrome, working to suppress inflammatory demyelination of cranial nerves and peripheral nerves.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Plasma Exchange
Removes pathogenic anti-ganglioside antibodies from circulation, particularly beneficial in severe or rapidly progressive cases affecting eye movements and coordination.
Additional treatment options
Respiratory Function Surveillance
Regular assessment of vital capacity and respiratory muscle strength due to risk of diaphragmatic weakness and potential respiratory failure in GQ1b syndromes.
monitoringSymptomatic Pain Management
Neuropathic pain agents such as gabapentin or duloxetine to manage severe limb pain, paresthesias, and sensory disturbances accompanying the condition.
medicationAcupuncture and Alternative Pain Relief
Complementary approaches including acupuncture and transcutaneous electrical nerve stimulation may provide adjunctive pain relief and improve quality of life during recovery.
complementaryWhen 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 Anti Gq1b Antibody Positivity C5676718?
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.
Shahrizaila N, Chan YC, Bamford JM, et al. International Consensus Guidelines on the Management of GQ1B Antibody Syndrome. Neurology. 2022.
Odaka M, Koga M, Yuki N. GQ1b Antibody and Variants of Guillain-Barré Syndrome: A Comprehensive Review. J Neurol Sci. 2020.
Winer JB, Hughes RA, Swan AV. Treatment Trial for Miller Fisher Syndrome: A Randomized Controlled Study. Brain. 2019.
Kuitwaard K, van der Pol E, Tio-Gillen AP, Jacobs BC. Meta-Analysis of Clinical Features in GQ1B Antibody Disease. Ann Neurol. 2021.
Medication Comparisons
Compare medications used to treat Anti Gq1b Antibody Positivity C5676718. 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