subarachnoid haemorrhage


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subarachnoid haemorrhage

A severe intracerebral haemorrhage in the subarachnoid space, often due to a ruptured intracranial aneurysm.
 
Clinical
Abrupt severe headache, loss of consciousness, vomiting.
 
Aetiology
Ruptured cerebral aneurysm, AV malformation, traumatic cerebral arterial dissection, extension of an intracerebral haemorrhage into the subarachnoid space, idiopathic.
 
Risk factors
Aneurysms, polycystic kidney disease, fibromuscular dysplasia, hypertension.
 
Management
Ventilation, oxygenation, fluid, tissue dehydration (e.g., mannitol, surgical evacuation), bed rest, sedation, analgesia, anti-seizure drugs.

sub·a·rach·noid hem·or·rhage

(sŭb'ă-rak'noyd hem'ŏr-ăj)
Bleeding between the middle membrane covering of the brain and the brain itself; 5-10% of strokes are caused by subarachnoid hemorrhage. Most common in people 20-60 years old; female predilection.
Synonym(s): subarachnoid bleed, subarachnoid haemorrhage.

subarachnoid haemorrhage

Bleeding over and into the substance of the brain from a ruptured artery lying under the arachnoid layer of the MENINGES. The commonest cause is rupture of a pre-existing berry-like swelling (ANEURYSM) on one of the arteries or bleeding from a tumour-like malformation on an artery. Subarachnoid haemorrhage is the main cause of spontaneous STROKE in young people. There is a sudden severe headache followed by loss of consciousness or other signs of neurological damage. The death rate is high. Treatment is directed to keeping the blood pressure reasonably low, preventing blood vessels from going into spasm and preventing blood clot in an aneurysm from dissolving. Surgery is sometimes appropriate.

sub·a·rach·noid hem·or·rhage

(sŭb'ă-rak'noyd hem'ŏr-ăj)
Extravasation of blood into subarachnoid space.
Synonym(s): subarachnoid haemmorhage.
References in periodicals archive ?
The Phase ll trials, which are expected to take three years to complete, will assess the drug's efficacy in treating breast cancer and a type of stroke called subarachnoid haemorrhage.
The proceeds would be utilized for a variety of purposes, comprising financing for a phase IIa study in metastatic breast cancer, a phase II study in subarachnoid haemorrhage a type of stroke and preclinical studies in multiple sclerosis.
The Saltburn 35-yearold was given slim odds of survival when she suffered a burst brain aneurysm and subarachnoid haemorrhage two years ago today.
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Neurological and psychosocial outcome after subarachnoid haemorrhage, and the hunt and hess scale as a predictor of clinical outcome.
Coroner Karen Dilks recorded that the cause of Bobby-Jo's death was a subarachnoid haemorrhage.
Experts from Durham University have worked in collaboration with the University of Liverpool and the University of Erlangen-Nurnberg, in Germany, to assess those that have had a subarachnoid haemorrhage (SAH).
High risk clinical characteristics for subarachnoid haemorrhage in patients with acute headache: Prospective cohort study.
Tool salesman John Savage, who has answered questions on the Hoops, said yesterday he suffered the subarachnoid haemorrhage 18 months ago, which required treatment to save his life.
Subarachnoid haemorrhage is a less common form of stroke than hypertensive haemorrhage, with an incidence of 6 - 7/100 000.
The coroner said: "Mr Fox died from complications following a head injury after two falls against a background of epilepsy following a subarachnoid haemorrhage.
Subarachnoid haemorrhage in Plasmodium falciparum malaria.