Xuất huyết não

Tài liệu tiếng anh tham khảo về bệnh xuất huyết não : About 13 percent of stroke happen when a blood vessel dislocation in or nearby the brain. This is named a hemorrhagic stroke or Bleeds. When a hemorrhagic stroke happens, blood collects in the brain tissue. This is toxic for the brain structure causing the microscopic cells in that region to weaken and die. Are all hemorrhagic strokes the same? There are two kinds of hemorrhagic stroke. In both, a blood vessel dispersion, disrupting blood flow to part of the brain. Intracerebral hemorrhages : · Occur when a blood vessel bleeds or dislocation into the tissues deep within the brain. · Are most often caused by chronically high blood pressure or getting older blood vessels. · Are oftentimes caused by an arteriovenous malformation (AVM). An AVM is a area of abnormally formed blood vessels. Any of these vessels can rupture, also causing bleeding into the brain. Subarachnoid hemorrhage: · Come up when an aneurysm on or near the area of the brain ruptures and bleeds into the space between the brain and the skull. · Are sometimes caused by high blood pressure. · In addition to high blood pressure, factors that gain the risk of hemorrhagic strokes include: o cigarette smoking o use of oral contraceptive pills o a lot of alcohol intake o use of illegal drugs How are hemorrhagic stroke identified? When someone has shown symptoms of a stroke or a TIA (transient ischemic attack), a doctor will get information and make a diagnosis. He or she will review the events that have occurred and will: · get a medical history · do a physical and neurological examination · have particular laboratory (blood) tests done · get a CT or MRI scan · review the results of other diagnostic tests that might be necessary The facts exams examine how the brain looks, works and gets its blood source. They can outline the injured brain area. The facts exams fall into three categories. · Images tests give a picture of the brain similar to X-rays. · Electrical tests record the electrical impulses of the brain. · Blood flow exams show any problem that may lead to changes in blood flow to the brain. How are hemorrhagic strokes remedy? Because hemorrhages may be life-threatening, hospital care is required. Medication is used to control high blood pressure. Other medicine may be given to reduce the brain swelling that follows a stroke. Surgery may be needed based upon on the cause of the hemorrhage. Surgical procedure is often recommended to either area a metal clip at the base of an aneurysm or to remove the unusual vessels that make up an AVM. Some procedures are less invasive and use of a catheter that goes in through a major artery in the leg or arm. The catheter is taken to the aneurysm or AVM where it places a device, just like a coil, to prevent rupture. Hy vọng tài liệu về xuất huyết não trên có thể giúp các bạn hiểu rõ hơn về căn bệnh này !