Ruptured Brain Aneurysm

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A ruptured brain aneurysm is a life-threatening neurological emergency that requires immediate medical attention. When an aneurysm—an abnormal bulging or weakening in the wall of a brain artery—bursts, it causes bleeding in or around the brain, most commonly a subarachnoid hemorrhage. Prompt diagnosis and expert treatment are critical to survival and long-term neurological recovery. New Jersey Brain and Spine provides rapid access to highly specialized cerebrovascular care and neurosurgical care across New Jersey and the Tri-State region.

What Is a Ruptured Brain Aneurysm?

A brain aneurysm (also called a cerebral or intracranial aneurysm) develops when a weak spot in an artery wall balloons outward. Many aneurysms remain undetected and asymptomatic. A ruptured brain aneurysm occurs when that weakened vessel wall tears, allowing blood to leak into the space surrounding the brain. This sudden bleeding increases pressure on brain tissue and disrupts normal blood flow, leading to rapid neurological deterioration.

Most ruptures result in subarachnoid hemorrhage, a serious type of hemorrhagic stroke. A rupture can cause permanent brain damage or death if not treated immediately. The National Institute of Neurological Disorders and Stroke (NINDS) estimates that approximately 30,000 people in the United States experience a ruptured brain aneurysm each year.

Types of Aneurysms Most Likely to Rupture

• Saccular (berry) aneurysms – the most common type, often forming at arterial branch points
• Fusiform aneurysms – involve circumferential widening of the artery
• Dissecting aneurysms – caused by a tear in the artery wall, sometimes related to trauma or connective tissue disorders

Causes of Ruptured Brain Aneurysm

Rupture typically occurs due to progressive weakening of the blood vessel wall over time. Risk factors include:

• High blood pressure (hypertension)
• Smoking, which significantly increases rupture risk
• Family history of aneurysms or subarachnoid hemorrhage
• Genetic or connective tissue disorders
• Heavy alcohol use or stimulant drugs, such as cocaine

Females over the age of 40 are the most likely to have a brain aneurysm rupture.

Symptoms of Ruptured Brain Aneurysm

A ruptured brain aneurysm causes sudden and severe symptoms that require emergency care:

Neurological Symptoms

• Loss of consciousness
• Seizures
• Sudden vision changes or double vision
• Slurred speech or difficulty understanding language
• Weakness or paralysis on one side of the body

Physical Symptoms

• Sudden, severe headache often described as “the worst headache of my life”
• Nausea and vomiting
• Stiff neck
• Sensitivity to light

Cognitive and Behavioral Changes

• Confusion or disorientation
• Memory impairment
• Personality or mood changes

If these symptoms occur, call 911 immediately.

Diagnosis and Evaluation of Ruptured Brain Aneurysm

Rapid diagnosis is essential to confirm bleeding and identify the aneurysm. Evaluation typically includes:

• CT scan to detect acute hemorrhage
• CT angiography (CTA) to visualize blood vessels
• MRI or MRA for additional anatomical detail
• Cerebral angiography, the gold standard for aneurysm evaluation

Patients in New Jersey benefit from coordinated diagnostic and treatment expertise through New Jersey Brain and Spine’s neurosurgery and endovascular & cerebrovascular specialty teams, with access to advanced imaging and hospital-based neurocritical care.

What Are Treatment Options for Ruptured Brain Aneurysm?

Treatment focuses on securing the aneurysm to prevent re-bleeding and managing complications.

Surgical and Endovascular Treatments

• Endovascular coiling – a minimally invasive procedure that fills the aneurysm with coils to stop blood flow
• Flow diversion – placement of specialized stents to redirect blood away from the aneurysm
• Microsurgical clipping – open surgery placing a clip across the aneurysm neck

The appropriate approach depends on aneurysm size, location, and patient condition. These treatments are provided through NJBS’s advanced Cerebrovascular Program.

Supportive and Critical Care

• Neuro-ICU monitoring
• Blood pressure management
• Medications to prevent vasospasm
• Treatment of brain swelling or hydrocephalus

Hospital stays typically range from one to three weeks, followed by rehabilitation as needed.

Similar or Related Conditions to Ruptured Brain Aneurysm

A ruptured brain aneurysm may be associated with or mistaken for other neurological conditions, including:

• Unruptured brain aneurysm
• Arteriovenous malformations (AVMs)
• Hemorrhagic stroke

Accurate diagnosis by an experienced neurosurgical team is essential for appropriate treatment.

Outcomes and Prognosis

Outcomes depend on the severity of bleeding and the speed of treatment.

Factors affecting prognosis include:

• Amount and location of hemorrhage
• Time to treatment
• Patient age and overall health
• Development of complications such as vasospasm

General statistics:

• Approximately 85% of ruptures cause subarachnoid hemorrhage
• Early intervention significantly improves survival
• Many survivors regain independence with appropriate rehabilitation

Case Study

A 52-year-old woman* from Bergen County with a history of hypertension experienced a sudden, severe headache and collapse. She was transported to a regional hospital and diagnosed with a ruptured brain aneurysm. Through rapid coordination with New Jersey Brain and Spine specialists, she underwent emergency endovascular coiling. After neurocritical care and rehabilitation, she returned to independent living.

More recovery stories can be found on our Patient Stories page.

*Patient name and details have been changed to preserve anonymity

Why Choose New Jersey Brain and Spine for Ruptured Brain Aneurysm Care?

At New Jersey Brain and Spine—one of the top 10 neurosurgery practices in the country—patients benefit from:

• Extensive cerebrovascular expertise in both open and minimally invasive techniques
• Advanced technology and access to high-acuity neurocritical care
• Collaborative partnerships with leading New Jersey hospital systems, including Hackensack Meridian Health
• Personalized, patient-centered care from emergency treatment through recovery

If you or a loved one may be experiencing symptoms of a ruptured brain aneurysm, seek emergency medical attention immediately. For expert follow-up care or consultation, contact New Jersey Brain and Spine to access specialized cerebrovascular care across New Jersey.

Frequently Asked Questions about Ruptured Brain Aneurysms