It is estimated that less than 40 percent of patients with a ruptured abdominal aneurysm survive. In some cases, an aneurysm may come on suddenly and rupture without any warning. If it ruptures and professional medical attention is not sought out right away, it can be deadly. Sometimes an aneurysm can be misdiagnosed. This is because symptoms can sometimes be similiar to migraine headaches and myocardial infarction. This is especially common if someone was diagnosed with migraine headaches in the past. It can be easy to assume that a severe headache is only a migraine. This may lead to delayed medical attention and even death. If you are having surgery, your risk for death may increase or brain damage may be a result from a ruptured aneurysm. However, surgery is the best option for surviving.