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Edward Ahn, MD

Edward Sanghoon Ahn, MD
Associate Professor of Neurological Surgery

See Research on Pubmed | See Research on Google Scholar

Appointment Phone


Main Location

The Johns Hopkins Hospital

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Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

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International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Associate Professor of Neurological Surgery
  • Associate Professor of Pediatrics

Centers & Institutes

  • Children's Center
  • Endoscopic Neurosurgery
  • Pediatric Neurosurgery Center
  • Pediatric Neurovascular Center
  • Pediatric Trauma
  • Philip A. Keelty Center for Spina Bifida and Related Conditions


Brain Hemorrhage, Brain Tumors, Cerebral Revascularization, Chiari Malformations, Craniofacial Reconstruction, Craniosynostosis, Encephalocele, Endoscopy, Hydrocephalus, Moyamoya Disease, Neonatal Surgery, Neurological Surgery, Neurosurgery, Pediatric Neurosurgery, Skull Lesions, Spina Bifida, Spinal Dysraphism, Syringomyelia, Tethered Cord Syndrome, Vascular Malformations

Research Interests

germinal matrix hemorrhage; hydrocephalus in premature infants


Dr. Edward Ahn focuses on the surgical treatment of neurological disorders in children. He has particular interests in minimally invasive endoscopic surgery for the treatment of hydrocephalus, brain tumors, and craniosynostosis. He has also gained expertise in surgical revascularization for patients with moyamoya syndrome.

Dr. Edward Ahn's laboratory research focuses on the pathophysiology of germinal matrix hemorrhage and treatment of the associated hydrocephalus in premature infants.


  • English
  • Spanish
  • Korean


American Association of Neurological Surgeons
Congress of Neurological Surgeons

Clinical Trial Keywords

  • hypothermia in pediatric traumatic brain injury

Additional Resources

Additional Resources +
  • Education +


    • New York University School of Medicine (New York NY ) (2000)


    • University of Maryland Medical Center / Neurosurgery (Baltimore MD ) (2006)


    • Children's Hospital / NeuroSurgery (Boston MA ) (2007)


    • Neurological Surgery, American Board of Neurological Surgery (2012)
  • Research & Publications +

    Research Summary

    Dr. Edward Ahn's laboratory research focuses on the pathophysiology of germinal matrix hemorrhage and treatment of the associated hydrocephalus in premature infants.

    Selected Publications View all on PubMed

    Ahn ES, Chin LS, Gyure KA, Hudes RS, Ragheb J, DiPatri AJ Jr. Long-term control after resection and gamma knife surgery of an intracranial clear cell meningioma: case report. J Neurosurg. 2005 Apr;102(3 Suppl):303-6.
    Ahn ES, Smith ER. Acute clival and spinal subdural hematoma with spontaneous resolution: Clinical and radiographic correlation in support of a proposed pathophysiologic mechanism. J Neurosurg. 2005 Aug;103(2 Suppl):175-9.
    Aarabi B, Hesdorffer, DC, Ahn ES, Aresco C, Scalea TM, Eisenberg HM. Outcome following decompressive craniectomy for malignant swelling following severe head injury. J Neurosurg 2006 Apr;104(4):469-79.
    Ahn ES, Bookland M, Carson BS, Weingart JD, Jallo GI. The Strata Programmable Valve For Shunt-Dependent Hydrocephalus: The Pediatric Experience at a Single Institution. Childs Nerv Syst 2007 Mar;23(3):297-303.
    Ahn ES, Aarabi B. Posttraumatic locked-in syndrome from a pontomedullary contusion: case report. J Trauma 2007 Aug;63(2):420-3.
    Ahn ES, Robertson CL, Vereczki V, Hoffman GE, Fiskum G. Normoxic ventilatory resuscitation following controlled cortical impact reduces peroxynitrite-mediated protein nitration in the hippocampus. J Neurosurg. 2008 Jan;108(1):124-31.
    Darwish RS, Ahn E, Amiridze NS. Role of Transcranial Doppler in Optimizing Treatment of Cerebral Vasospasm in Subarachnoid Hemorrhage. J Intensive Care Med. 2008 Jul-Aug; 23(4):263-7.
    Noggle JC, Sciubba DM, Nelson C, Garcs-Ambrossi GL, Ahn E, Jallo GI. Supraciliary keyhole craniotomy for brain abscess debridement. Neurosurg Focus. 2008;24(6):E11.
    Parker SL, Attenello FJ, Sciubba DM, Garces-Ambrossi GL, Ahn E, Weingart J, Carson B, Jallo GI. Comparison of shunt infection incidence in high-risk subgroups receiving antibiotic-impregnated versus standard shunts. Childs Nerv Syst. 2009 Jan;25(1):77-83.
    Shakur SF, McGirt MJ, Johnson MW, Burger PC, Ahn E, Carson BS, Jallo GI. Angiocentric glioma: a case series. J Neurosurg Pediatr. 2009 Mar;3(3):197-202.
  • Academic Affiliations & Courses +
  • Activities & Honors +


    Augustus McCravey Resident Award Paper, Southern Neurosurgical Society
    Synthes Award for Resident Research in Brain and Craniofacial Injury, AANS/CNS Section on Neurotrauma and Critical Care
    AANS/CNS Resident Traveling Fellowship in Pediatric Neurosurgery, Childrens Hospital Boston
  • Videos & Media +


    Meet our Experts: Dr. Edward Ahn

    Dr. Edward Ahn focuses on the surgical treatment of neurological disorders in children, such as hydrocephalus, brain tumors and craniosynostosis.

    Patient Video: Pediatric Craniosynostosis

    Born with pediatric craniosynostosis, Jack had minimally invasive surgery performed by pediatric neurosurgeon Dr. Edward Ahn to correct the skull defect while he was still an infant. This surgery was a far cry from the craniotomy that Jack's father, Steve, had as a child as he too was diagnosed with craniosynostosis.

    Patient Video: Seizures Lead to Pediatric Brain Surgery - Connor's Story

    In 2011, four-year-old Connor said his arm kept falling asleep. Connor was experiencing seizures caused by a benign brain tumor. ABC2 cameras followed the family during their medical journey as Connor had neurosurgery conducted by pediatric neurosurgeon, Dr. Edward Ahn.

    Pediatric Neurosurgery: Craniosynostosis Q&A

    Dr. Edward Ahn answers commonly asked questions about what is craniosynostosis, how it is diagnosed and treated, what the prognosis is for children with the condition and why you should consider Johns Hopkins for treatment.

    Video Links

    Recent News Articles & Media Coverage

    A Team Approach for Pediatric Brainstem Tumors, Pediatric Neuro News, Winter 2015

    Smaller Incision, Bigger Results for Craniosynostosis, Pediatric Neuro News, Winter 2015

    Reducing Radiation Exposure in Children with Hydrocephalus, Doorways to Discovery (November 2014)

    Baytown woman recovering from rare syndrome (moyamoya), Houston Chronicle (03/16/2014)

    Johns Hopkins Doctors Remove Baby's Brain Tumor that Contained Teeth, Baltimore Sun (02/28/2014)

    Shunt-Free Treatment for Hydrocephalus, Johns Hopkins Children's Center (12/12/2013)

    Striking Strokes in Moyamoya Patients, Pediatric Neuro News (Fall 2013)

    Repairing the Skull, Pediatric Neuro News (Winter 2012)

    A Kinder Operation for Craniosynostosis, Collaborations in Discovery (11/01/2011)

    Should You Worry About Your Baby’s Flat Head? Better Health (03/21/2011)

  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Baltimore, MD 21287
    Phone: 410-502-7700
    Appointment Phone: 410-502-7700
    Fax: 410-502-4953
    Location Map
    Johns Hopkins Medicine - Howard County
    10710 Charter Drive
    Medical Pavilion
    Columbia, MD 21044
    Appointment Phone: 410-502-7700
    Location Map


    • Neurosurgery - Pediatric Neurosurgery

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