What are the outcomes of endovascular treatment of Hunt and Hess grade IV and V aneurysms?
In a 2002 study, Bracard et al. found that endovascular treatment of Hunt and Hess grade IV and V aneurysms was successful in the majority of patients. In this study, endovascular treatment was successful in 88% of patients with Hunt and Hess grade IV aneurysms and 94% of patients with Hunt and Hess grade V aneurysms. The study found that the overall complication rate was 10.4%, with an overall mortality rate of 11.3%. The study concluded that endovascular treatment is a safe and effective treatment option for patients with Hunt and Hess grade IV and V aneurysms.