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The Johns Hopkins Aneurysm Center

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The Johns Hopkins Aneurysm Center excels at prevention, diagnosis, treatment, and care for patients with aneurysms. Seeing more than 200 aneurysm cases annually, our team has expertise in diagnosing and treating ruptured and unruptured aneurysms and are the leaders in treatment of complex aneurysm recurrences. We evaluate each patient to determine the best therapy or combination of treatments for each situation.

Why Choose Johns Hopkins Aneurysm Center

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Advanced Expertise

You can have confidence in our surgeons, who are skilled in new, sophisticated procedures designed to manage brain aneurysms of all sizes and types.

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Comprehensive Approach

Experts in surgery, medicine, nursing and allied health focus on a cooperative, multi-specialty approach that covers every aspect of aneurysm care.

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Ongoing Research

Every treatment you receive is based on science. Our research aims to inform better aneurysm diagnosis, treatment and recovery.


Patient Stories 

Ophthalmic Nerve Aneurysm | Les Picker's Story

Ruptured Brain Aneurysm | Dr. Olachi Mezu's Story


Our Approach to Repeat Aneurysms

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About twenty percent of patients who had an aneurysm go on to have multiple aneurysms, often on opposite sides of the brain. Moreover, some aneurysms that are treated with endovascular surgery will come back.

The Johns Hopkins Aneurysm Center specializes in treating complex aneurysm recurrences, leading the field of neurosurgery expertise by using a combined open and endovascular approach for aneurysms that have recurred. Traditionally, surgeons perform two separate operations, one for each side of the brain. Dr Rafael Tamargo is among a handful of surgeons worldwide to use a one-surgery, contralateral approach.

Treatment options for aneurysms that have recurred may include:

  • Coiling the aneurysm again using endovascular stent coiling
  • Bypass the blood flow of the vessel using flow diversion with stents
  • Open microsurgery

The Johns Hopkins Aneurysm Center is one of only a few centers in the United States that successfully performs open microsurgery on previously coiled aneurysms.


Our Brain Aneurysm Specialists

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Appointments and Referrals

To help us make the most of your visit, we request that you or your referring physician fax your most recent imaging reports (CT, CTA, MRI, MRA, Angiogram) to 410-367-2749. Do not send films or CDs to us in advance. Bring those to your scheduled appointment.

Once we have your information, one of our team members will review your records and call you to discuss appointment recommendations.

Physicians may also call our Hopkins Access Line (HAL Line) 24/7 at 1-800-765-5447.


Brain Aneurysm Support Group

The Johns Hopkins Aneurysm Center and the Baltimore Brain Aneurysm Foundation invite you to attend our brain aneurysm support group in Lutherville. This group is for survivors of brain aneurysms, their caregivers, family and friends, and anyone who has been recently diagnosed or is undergoing treatment.

Doorways to Discovery | Shifting the Vasospasm Paradigm

Rafael Tamargo, M.D. discusses his research on a new paradigm of inflammatory injury after bleeding in the brain.

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