Approximately 120,000 hemorrhagic strokes occur each year in the United States. This accounts for 10 – 15% of all stroke cases. Unfortunately, almost 80% of patients are left physically disabled after their stroke episode.

What Is a Hemorrhagic Stroke
The most common type of hemorrhagic stroke happens when a blood vessel inside the brain bursts and leaks blood into surrounding brain tissue. This is known as an intracerebral hemorrhage (ICH).1

The most common cause of ICH is high blood pressure (hypertension). Other causes include trauma, tumors, and abnormalities in blood vessels. 

Symptoms of ICH can include trouble with speaking and understanding, paralysis or numbness in the face, arms or legs, trouble with seeing in one or both eyes, severe headache, vomiting, dizziness, loss of balance or loss of coordination.

What Happens During an ICH
During an ICH, blood collects in the brain tissue. As blood spills into the brain, the area of the brain that the artery supplies blood to is now deprived of oxygen-rich blood.3 This is called a stroke. As blood cells within the clot die, toxins are released that further damage brain cells in the surrounding area. for the brain tissue causing the cells in that area to weaken and eventually die.4 

Also, as the blood collects and forms a clot, it causes increased pressure on surrounding brain tissue.5

“Time Is Brain”
Brain tissue is rapidly lost as stroke progresses and emergent evaluation and therapy are required.6  Once the cause and location of bleeding is identified, treatment focuses on stopping the bleeding, removing the blood clot and relieving the pressure on the brain. It’s important to evacuate as much of this blood from the brain as quickly as is safely possible for the patient to minimize the level of damage that occurs.

The blood, which is toxic to healthy brain tissue, can begin to accumulate and pool in a certain region. This process can lead to swelling and increased cranial pressure. Ultimately, the effected brain cells die and don’t have the ability to regenerate or heal.

NICO Announces
Hemorrhagic Stroke Trial
Led by 2 Atlanta Stroke Centers

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Artery Rupturing
Bleeding occurs inside or around brain tissue

Blood Accumulating/Clotting
Formation of blood clot


Brain Tissue Necrosis
Region of decreased blood flow resulting in the development of dead brain tissue


1National Stroke Association:
2Mayo Clinic:
3American Heart Association: let’s talk about Hemorrhagic Stroke fact sheet, 2012

4Mayfield Brain & Spine: Intracerebral Hemorrhage (ICH):
5Mayfield Brain & Spine: Intracerebral Hemorrhage (ICH):
6Saver JL. Time is Brain–quantified. Stroke. 2006;37(1):263-6


The BrainPath Approach is a minimally invasive integrated surgical approach used to access and then remove the blood that accumulates as the result of an ICH. In order to safely access vascular abnormalities that cause an ICH – including primary bleeds (hemorrhagic stroke), secondary bleeds from other causes such as arteriovenous malformation (AVM) and trauma – your doctor may recommend surgical intervention using the BrainPath. More than 2,500 procedures have been successfully performed using the BrainPath technology, which accesses the surgical site by moving through the delicate folds and fiber tracts of the brain through an opening the size of a dime.

Examples of Pre- and Post-Op Images Following Hemorrhagic Stroke with Use of BrainPath

pre post patient page

Podium Presentation Summary

In a retrospective, multi-center study of 35 patients from 10 centers, patients operated on over a 2-year period showed: