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A hemorrhagic stroke happens when a blood vessel in the brain ruptures or leaks. A blood vessel on the surface of the brain bursts (hemorrhages). This spills blood into the surrounding tissue. This type of stroke often happens suddenly, with little warning. It is the most serious of all types of strokes. A subarachnoid hemorrhage is a type of hemorrhagic stroke.
This type of stroke happens when a major blood vessel bursts on the surface of the brain. Normally, the space between the brain and the skull is filled with a clear fluid. When the blood vessel bursts, blood flows into the space between the brain and the skull. The amount of fluid in this space increases and puts pressure on the brain. This pressure can damage nearby parts of the brain.
Most of these strokes happen when a cerebral aneurysm bursts. An aneurysm is a weak spot in the wall of a blood vessel. A bubble often forms in this weak spot. In some cases, a cerebral aneurysm causes pain or other symptoms. In most cases, though, an aneurysm causes no symptoms until it bursts.
Any stroke is a medical emergency. If you have any of these symptoms, even if they seem to get better, call 911 right away:
Sudden, excruciating headache with no known cause
Nausea and vomiting (often with headache)
Sudden confusion or decrease in alertness
Trouble moving or loss of feeling, especially on the face, arm, or leg specifically on one side of the body
Sudden trouble walking, dizziness, loss of balance or coordination
Sudden trouble talking or understanding speech
Sudden mood changes
Sudden dimness, double vision, or loss of vision, particularly in one eye
Eyes suddenly very sensitive to light
Neck and shoulder pain or stiff neck
The acute phase lasts from the first minutes to hours after symptoms start. During this phase, treatment focuses on relieving pressure on the brain and preventing further damage. A procedure or surgery may be done to repair the ruptured (burst) aneurysm. A drain may be placed into the brain to relieve pressure. Medicines to control blood pressure may be given through an IV line. Seizure medicine is often given. Tests will likely be done to check for other aneurysms in the brain. If they are found, surgery may be done to reduce the risk that they will burst and bleed.
After the acute phase, treatment focuses on recovery. Long-term damage from a stroke can include paralysis, trouble speaking or understanding, and trouble thinking clearly. Rehabilitation therapy (rehab) can help reduce these effects and regain skills. Rehab starts in the hospital and generally continues in an inpatient or outpatient facility, and eventually at home. It will focus on regaining lost skills. It may include:
Help regaining movement.
Therapy for speech and language
Help with swallowing
Help reducing risk factors for another stroke, such as smoking
In addition, medicines that help prevent another stroke may be given. These include medicines to control blood pressure and prevent bleeding.
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