Brain aneurysms can be very deadly. The ballooning vessel can rupture, leaking blood into your brain. If that happens there's a 60% chance you won't make it. Doctors agree that it's vitally important to fix aneurysms at risk of bleeding. Let's go to Mayo Clinic to learn about a new technique for repairing aneurysms. It's less invasive than traditional surgery and some patients can go home the same day.