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PubMed This is a summary of 14 peer-reviewed journal articles Updated
Neurosurgery · Aqueductal Stenosis

Building Your Care Team and Preparing for Your Visit

At a Glance

Treating aqueductal stenosis requires a specialized care team led by a neuroendoscopist. When preparing for your visit, bring a physical disc of all previous brain MRIs, a symptom log, and ask your surgeon about their specific experience with Endoscopic Third Ventriculostomy (ETV) procedures.

Getting the best results for Aqueductal Stenosis (AS) depends largely on the experience and specialized tools of your medical team. Because the standard of care is shifting toward “shunt-less” treatments like Endoscopic Third Ventriculostomy (ETV), you need a team that excels in neuroendoscopy—a minimally invasive surgical approach using tiny cameras and instruments inside the brain [1][2].

Think of your neurosurgeon as the “architect” of your treatment, but remember that you will need a support team of other specialists to monitor your long-term brain health and development [3].

The Specialists You Need

A “comprehensive care center” is usually the best place for AS patients, as it brings these different experts under one roof:

  • The Neuroendoscopist: This is a neurosurgeon with advanced training in using an endoscope. For children, you should see a Pediatric Neurosurgeon; for adults, seek an expert in Adult Hydrocephalus or CSF Disorders [1][4].
  • Neuro-Ophthalmologist: This specialist is vital for monitoring pressure. They use a non-invasive scan called OCT (Optical Coherence Tomography) to look for papilledema (swelling of the optic nerve). This can often catch rising brain pressure before you even feel a headache [5][6].
  • Medical Geneticist: If a male infant is diagnosed with AS, a geneticist can test for L1 Syndrome (L1CAM mutation), which helps guide future family planning and developmental support [7][8].
  • Neuropsychologist: They provide “baseline” testing for memory, processing speed, and academic skills. This helps the team identify if subtle “brain fog” or school struggles are related to the hydrocephalus [9].

Preparing for the First Consultation

Your first visit is essentially an “interview” to see if the surgical team has the right experience. To make the most of it, come prepared with your “AS Toolkit.”

Your “AS Toolkit” Checklist

  • Imaging on a Disc: Do not rely on the hospital to “pull up” your scans. Bring a physical disc (in DICOM format) of every brain MRI you have ever had. Comparing older scans to new ones is the only way to see if the ventricles are growing [10][11].
  • Pediatric Growth Charts: If the patient is a child, bring a record of their head circumference from birth. A sudden “jump” across percentiles is a key piece of evidence for the surgeon [9].
  • Symptom Log: Keep a two-week diary of headaches (noting the time of day), balance issues, or “clumsiness.”
  • Family History: Note any relatives who had hydrocephalus, “large heads,” or developmental delays.

Vetting Your Surgeon

Don’t be afraid to ask direct questions about the surgeon’s experience. Aqueductal stenosis is a specialized field, and high-volume surgeons often have better outcomes.

  1. Experience: “How many ETVs do you perform per year?” (Looking for a surgeon who performs these regularly, rather than occasionally).
  2. Success Metrics: “What is my specific ETV Success Score (ETVSS) based on my age and MRI?” [12].
  3. Technology: “Do you use high-resolution 3D-CISS or FIESTA imaging to plan the surgery?” [13].
  4. Emergency Access: “If I suspect an ETV failure at 2 AM, how quickly can I get a fast-MRI and see a neurosurgeon at this facility?” [14].

Common questions in this guide

What specialists do I need for aqueductal stenosis?
Your core team should include a neurosurgeon specializing in neuroendoscopy. You may also benefit from a neuro-ophthalmologist to monitor optic nerve pressure, a medical geneticist, and a neuropsychologist to track cognitive health.
What is the ETV Success Score?
The ETV Success Score is a metric used by neurosurgeons to predict how likely an Endoscopic Third Ventriculostomy will work for your specific case. It is calculated based on factors like your age and MRI results.
How should I prepare for my first neurosurgeon visit for AS?
Always bring a physical disc containing all your previous brain MRIs, a log of symptoms like headaches and balance issues, and a detailed family history. For children, be sure to bring growth charts showing head circumference since birth.
Why do I need a neuro-ophthalmologist for hydrocephalus?
A neuro-ophthalmologist uses special non-invasive eye scans to check for optic nerve swelling, known as papilledema. This can help detect rising brain pressure from fluid buildup before you even experience a headache.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Are you fellowship-trained specifically in neuroendoscopy, and how many ETV procedures do you perform each year?
  2. 2.Based on my/my child's MRI, what is the 'ETV Success Score' (ETVSS), and does it make an ETV the clear first-line choice over a shunt?
  3. 3.If we proceed with an ETV, what is your team's protocol for monitoring for 'sudden closure' in the days and weeks following surgery?
  4. 4.If I suspect an ETV failure at 2 AM, how quickly can I get a fast-MRI and see a neurosurgeon at this facility?
  5. 5.Do you work with a neuro-ophthalmologist who can perform regular OCT (retinal) scans to check for optic nerve swelling?
  6. 6.For this specific type of blockage, is 'aqueductoplasty' (stenting the original channel) a better option than a bypass (ETV)?

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References

References (14)
  1. 1

    Success Rate of Endoscopic Third Ventriculostomy in Children Younger Than 1 Year With Idiopathic Congenital Aqueductal Stenosis and Long-term Follow-up.

    Krejcí T, Kubina L, Krejcí O, et al.

    Journal of child neurology 2025; (40(2)):77-82 doi:10.1177/08830738241282356.

    PMID: 39878077
  2. 2

    Neuroendoscopic Diagnosis and Treatment of Adolescent-Onset Aqueductal Stenosis: A Report of Two Cases Demonstrating the Utility of Endoscopic Third Ventriculostomy.

    Sakakibara Y, Yamamoto M, Watanabe T, et al.

    Cureus 2025; (17(11)):e96666 doi:10.7759/cureus.96666.

    PMID: 41404208
  3. 3

    Fetal mri of obstructive hydrocephalus: a review proposing a surgical etiology-based approach.

    Tortora M, Pacchiano F, Doneda C, et al.

    Neuroradiology 2026; (68(1)):39-56 doi:10.1007/s00234-025-03827-3.

    PMID: 41269339
  4. 4

    Lower rates of symptom recurrence and surgical revision after primary compared with secondary endoscopic third ventriculostomy for obstructive hydrocephalus secondary to aqueductal stenosis in adults.

    Sankey EW, Goodwin CR, Jusué-Torres I, et al.

    Journal of neurosurgery 2016; (124(5)):1413-20 doi:10.3171/2015.4.JNS15129.

    PMID: 26517771
  5. 5

    Long-Standing Overt Ventriculomegaly in Adults (LOVA) With Absent Septum Pellucidum and Spontaneous Ventriculostomy: Report of a Rare Case.

    Seong J, Akmal R, Nigora K

    Cureus 2024; (16(1)):e52292 doi:10.7759/cureus.52292.

    PMID: 38357077
  6. 6

    Simultanagnosia as the presenting symptom in neuro-ophthalmology.

    Wang R, Hopping G, Al Othman B, et al.

    Proceedings (Baylor University. Medical Center) 2020; (33(1)):105-107 doi:10.1080/08998280.2019.1656013.

    PMID: 32063790
  7. 7

    Mesencephalosynapsis and aqueductal stenosis.

    Fisher Y, Shannon P, Greenberg O, et al.

    Journal of neuropathology and experimental neurology 2025; (84(3)):195-209 doi:10.1093/jnen/nlae128.

    PMID: 39658320
  8. 8

    Hydrocephalus due to multiple ependymal malformations is caused by mutations in the MPDZ gene.

    Saugier-Veber P, Marguet F, Lecoquierre F, et al.

    Acta neuropathologica communications 2017; (5(1)):36 doi:10.1186/s40478-017-0438-4.

    PMID: 28460636
  9. 9

    Clinical Outcomes of Isolated Congenital Aqueductal Stenosis.

    Tonetti DA, Richter B, Andrews E, et al.

    World neurosurgery 2018; (114()):e976-e981 doi:10.1016/j.wneu.2018.03.123.

    PMID: 29588243
  10. 10

    Tectal Plate Gliomas Masquerading as Idiopathic Aqueduct Stenosis.

    Afshari FT, English M, Lo WB

    World neurosurgery 2022; (165()):92-94 doi:10.1016/j.wneu.2022.06.063.

    PMID: 35752420
  11. 11

    Mesencephalic developmental venous anomaly causing obstructive hydrocephalus: illustrative case.

    Hiraga K, Hayashi S, Oshima R, et al.

    Journal of neurosurgery. Case lessons 2023; (5(12)).

    PMID: 36941200
  12. 12

    External validation of the ETV success score in 313 pediatric patients: a Brazilian single-center study.

    Furtado LMF, da Costa Val Filho JA, Dos Santos Júnior EC

    Neurosurgical review 2021; (44(5)):2727-2734 doi:10.1007/s10143-020-01461-6.

    PMID: 33389340
  13. 13

    A Case of Aqueductal Stenosis with Bilateral Papilledema and Abducens Nerve Palsies without Headache.

    Nakata D, Okada H, Doi T, et al.

    Case reports in ophthalmology 2024; (15(1)):873-878 doi:10.1159/000542582.

    PMID: 39980535
  14. 14

    The Role of Early Postoperative Intracranial Pressure Monitoring in Predicting the Outcome of Endoscopic Third Ventriculostomy Performed in Infants With Congenital Hydrocephalus: A Prospective Analysis.

    Yadav A, Verma R

    Cureus 2022; (14(2)):e22354 doi:10.7759/cureus.22354.

    PMID: 35371677

This page is for informational purposes only and does not replace professional medical advice. Always consult your specialized neurosurgical team regarding aqueductal stenosis treatment and care planning.

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