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PubMed This is a summary of 51 peer-reviewed journal articles Updated
Pediatric Neurology

Aicardi syndrome: A Patient Guide

At a Glance

Aicardi syndrome affects early brain and eye development and often causes seizures, vision problems, and developmental challenges. Prompt assessment of suspected infantile spasms and coordinated specialist care can support a child's health and quality of life.

Aicardi syndrome is a rare and complex developmental condition that primarily affects the formation of the brain and the eyes. This guide is written primarily for parents and caregivers to help navigate the condition from diagnosis to daily life.

Traditionally identified by a “classic triad” of features—a missing connection between the brain’s hemispheres, highly characteristic spots on the retina, and a specific type of early-childhood seizure (infantile spasms)—our understanding of the syndrome has expanded significantly. A 2025 expert Delphi consensus study proposed a broader diagnostic framework. It recognizes that a wider range of brain malformations and developmental challenges may strongly support the diagnosis, reflecting that the condition impacts the global architecture of the brain rather than just a few isolated structures [1][2].

While the neurological aspects, such as difficult-to-treat epilepsy, are often the most visible parts of the syndrome, Aicardi syndrome is truly a multisystem journey. It involves a wide array of physical considerations, including how the spine and ribs form, how the eyes perceive light, and how the brain coordinates essential functions like swallowing. Because these features develop very early in pregnancy and are almost always the result of a random (de novo) genetic change, they require a proactive and lifelong approach to management [3][4].

Living with Aicardi syndrome means building and leading a dedicated multidisciplinary care team. This team often includes specialists in neurology, ophthalmology, and physical therapy, all working together to support your child’s unique developmental path. While the diagnosis can feel overwhelming, the focus of care is on optimizing your child’s comfort, communication, and overall quality of life. By monitoring for associated conditions and staying ahead of common challenges, families can navigate this complex landscape with a clear plan and a supportive community of experts [5][6].

What To Do Next

If your child has just been diagnosed, consider these immediate next steps:

  • Urgent Seizure Care: If you suspect infantile spasms, seek immediate specialist or emergency assessment; do not wait for a routine visit.
  • Confirm the Diagnosis: Work with an experienced pediatric epilepsy center and genetics team to review the MRI, EEG, and eye findings.
  • Build an Action Plan: Obtain a written Seizure Action Plan detailing when and how to use rescue medications for prolonged seizures.
  • Coordinate Care: Arrange baseline ophthalmology and feeding assessments, and identify a primary care coordinator to help sync your appointments.

In this guide

6 chapters

01

Understanding Aicardi Syndrome: Diagnosis and Overview

Learn how Aicardi syndrome is diagnosed, including the classic triad, brain and eye findings, infantile spasms, and the proposed 2025 consensus criteria.

02

The Biology and Genetics of Aicardi Syndrome

Learn how Aicardi syndrome may arise, why it mainly affects girls, what MRI can show, and what genetic testing means for diagnosis and future pregnancies.

03

Managing Epilepsy and Seizures in Aicardi Syndrome

Learn how Aicardi syndrome seizures are treated with medicines, the ketogenic diet, VNS, or surgery, plus safety planning and goals for reducing seizure burden.

04

Associated Conditions: Eyes, Bones, and Digestion

Learn how Aicardi syndrome can affect the eyes, spine, swallowing, digestion, and breathing, plus monitoring and treatments that support your child’s health.

05

Building Your Multidisciplinary Care Team

Learn how to build an Aicardi syndrome care team, prepare for specialist visits, organize records, and coordinate epilepsy, vision, therapy, and school support.

06

Daily Life, Development, and Emergency Red Flags

Learn how Aicardi syndrome affects development, daily care, seizure first aid, swallowing safety, and emergency signs involving breathing, vision, and seizures.

Common questions in this guide

What is Aicardi syndrome?
Aicardi syndrome is a rare developmental condition that affects how the brain and eyes form. It often includes seizures, vision or retinal abnormalities, developmental challenges, and sometimes problems involving swallowing, the spine, or ribs.
How do doctors diagnose Aicardi syndrome?
Doctors consider the child's brain development, seizure pattern, and eye findings rather than relying on one test. An experienced pediatric epilepsy and genetics team may review a brain scan, a brain-wave test, and an eye examination, using the classic triad or a broader set of features recognized by newer consensus guidance.
Why are suspected infantile spasms an emergency?
Infantile spasms are an early-childhood seizure type associated with Aicardi syndrome and need prompt evaluation. If you suspect them, contact a specialist or seek emergency assessment instead of waiting for a routine appointment.
What other health issues should families monitor?
Aicardi syndrome can affect vision, development, swallowing, the spine, and ribs in addition to causing seizures. The care team can arrange baseline eye and feeding assessments and ongoing monitoring tailored to the child's needs.
Which specialists help manage Aicardi syndrome?
Care is usually coordinated across pediatric neurology or epilepsy, ophthalmology, genetics, and physical therapy. A primary care coordinator can help organize appointments and connect the team's recommendations.
What should parents do after an Aicardi syndrome diagnosis?
Families can confirm the diagnosis with an experienced pediatric epilepsy center and genetics team, obtain a written Seizure Action Plan, and arrange baseline eye and feeding assessments. The plan should explain when and how to use prescribed rescue medicine for a prolonged seizure.
What happens if my child's seizure treatment is not controlling seizures?
If initial seizure treatment does not control seizures, the child's neurology or epilepsy team should reassess the plan and discuss next options. Families should keep a written Seizure Action Plan and know when to use rescue medication or seek emergency help.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Does my child meet the classic 'triad' for diagnosis, or are we looking at the broader 2025 consensus criteria?
  2. 2.Which specialist on our team should serve as the primary 'care coordinator' for my child's multisystem needs?
  3. 3.What is the current plan for monitoring my child's vision and spinal health over the next year?
  4. 4.How will we adjust our approach if the initial seizure treatments do not provide sufficient control?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (6)
  1. 1

    Refining Aicardi Syndrome diagnostic Criteria: an expert-based consensus using a modified Delphi approach.

    Masnada S, De Giorgis V, Carugo U, et al.

    European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society 2025; (60()):58-70 doi:10.1016/j.ejpn.2025.11.004.

    PMID: 41389753
  2. 2

    A clinical study of Aicardi syndrome in Northern Ireland: the spectrum of ophthalmic findings.

    Shirley K, O'Keefe M, McKee S, McLoone E

    Eye (London, England) 2016; (30(7)):1011-6 doi:10.1038/eye.2016.81.

    PMID: 27101753
  3. 3

    Aicardi syndrome, an unsolved mystery: Review of diagnostic features, previous attempts, and future opportunities for genetic examination.

    Wong BKY, Sutton VR

    American journal of medical genetics. Part C, Seminars in medical genetics 2018; (178(4)):423-431 doi:10.1002/ajmg.c.31658.

    PMID: 30536540
  4. 4

    Basal Ganglia Dysmorphism in Patients With Aicardi Syndrome.

    Masnada S, Pichiecchio A, Formica M, et al.

    Neurology 2021; (96(9)):e1319-e1333 doi:10.1212/WNL.0000000000011237.

    PMID: 33277420
  5. 5

    Nervous System Malformations.

    Gaitanis J, Tarui T

    Continuum (Minneapolis, Minn.) 2018; (24(1, Child Neurology)):72-95 doi:10.1212/CON.0000000000000561.

    PMID: 29432238
  6. 6

    Adult phenotypes of genetic developmental and epileptic encephalopathies.

    Vakrinou A, Pagni S, Mills JD, et al.

    Brain communications 2025; (7(1)):fcaf028 doi:10.1093/braincomms/fcaf028.

    PMID: 39882024

This guide is for informational purposes only and does not constitute medical advice. Your child's neurology, genetics, and other specialists should guide individualized decisions about seizures, testing, and daily care.

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