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Subarachnoid Haemorrhage
Medical Questions » Subarachnoid Haemorrhage
| Name: Subarachnoid Haemorrhage |
| Also known as: Intracerebral Haemorrhage |
| Bleeding into the substance of the brain. The arachnoid mater is the middle of the three meninges (membranes) that surround and support the brain, so by definition a sub arachnoid hemorrhage is a bleed within the arachnoid membrane. The innermost membrane is the Pia mater. |
Causes of Subarachnoid Haemorrhage
Rupture of a blood vessel in the brain due to high blood pressure (stroke), the rupture of an aneurysm (ballooning on the side of an artery), bleeding disorders (eg. thrombocytopenia, leukemia), brain tumors, head injury or as a side effect of medication (eg. warfarin). |
Symptoms of Subarachnoid Haemorrhage
Sudden loss of consciousness or confusion, vomiting, dizziness, headache and abnormal brain function (eg. partial paralysis, strange sensations) depending on the position of the bleed within the brain. |
Tests for Subarachnoid Haemorrhage
GT scan or angiography (X-ray of arteries after injecting a dye) used to find site of bleed. |
Treatment for Subarachnoid Haemorrhage
Depends on cause, and can vary from time and rest to surgery to stop continued bleeding.
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Complications of Subarachnoid Haemorrhage of its treatment
Permanent brain damage and epilepsy. |
Likely Outcome of Subarachnoid Haemorrhage
Very variable depending on position and severity. Some patients recover rapidly, while other may lapse into a long term coma or die. |
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