Every 18 Minutes: Why Better Data Is the Next Frontier in Brain Aneurysm Care

Every 18 minutes, someone in the United States suffers a ruptured brain aneurysm. Roughly 6.8 million Americans — about 1 in 50 — are living with an unruptured aneurysm right now, most of them unaware. When rupture happens, it kills nearly half of those it touches, and it does so with little warning.

September is Brain Aneurysm Awareness Month, marked by the burgundy ribbon. It’s a moment to talk plainly about a condition that is more common than most people realize, more dangerous than most people appreciate, and more treatable than it was even a decade ago — especially when the teams treating it have the data they need.

That last piece is where the NeuroVascular Quality Initiative–Quality Outcomes Database (NVQI-QOD) comes in.

What we know about brain aneurysms

A brain aneurysm is a weak, bulging spot on the wall of an artery in the brain. Most cause no symptoms until they rupture — and rupture can look like the worst headache of someone’s life, sudden nausea, a stiff neck, sensitivity to light, blurred vision, or loss of consciousness. Anyone experiencing these symptoms needs emergency care immediately.

Risk isn’t evenly distributed. Women develop brain aneurysms at higher rates than men. Black and Hispanic Americans are roughly twice as likely to have one as their white counterparts. Family history, high blood pressure, and smoking all raise the odds. Screening — typically with an MRA or CTA — is the only way to find an aneurysm before it ruptures, which is why people with a family history should talk to their physician about it.

Awareness of the signs and screening for the at-risk are the front lines. The back line is what happens inside the hospital once a patient arrives.

Where NVQI-QOD fits in

NVQI-QOD is the largest neurovascular clinical registry in North America. A joint initiative of the Society of NeuroInterventional Surgery (SNIS) and the NeuroPoint Alliance (NPA), it captures perioperative and follow-up data on cerebrovascular procedures — aneurysm treatment, stroke intervention, and beyond — across dozens of medical centers.

The registry recently passed more than 25,000 procedures recorded across 40 participating medical centers. Every one of those cases becomes part of a shared evidence base that helps clinicians answer questions that no single hospital can answer alone:

• Which techniques and devices produce the best long-term outcomes for a given aneurysm type?
• How does our center’s complication rate compare to national benchmarks?
• Where are the opportunities to improve safety, length of stay, and follow-up outcomes?

For patients, the value of a registry can feel abstract — until you consider that the standard of care they receive tomorrow is shaped by what we learn from the procedures performed today. Real-world data at this scale lets neurointerventional teams identify what works, flag what doesn’t, and improve faster than case-by-case experience allows.

What you can do this month

If you’re a patient or family member: Learn the warning signs of a ruptured aneurysm and call 911 immediately if you see them. If a first-degree relative has had a brain aneurysm, talk to your physician about screening.

If you’re a clinician or hospital leader: Consider what participating in a neurovascular registry could mean for your quality improvement work. NVQI-QOD is built by neurointerventionalists for neurointerventionalists, integrates with existing workflows, and gives your team benchmarked outcomes data you can act on. Learn more at nvqi-qod.org.

Brain aneurysms are common, dangerous, and — with the right care and the right data — increasingly survivable. That’s worth a month of attention.