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Journal of Neurology, Neurosurgery, and Psychiatry logoLink to Journal of Neurology, Neurosurgery, and Psychiatry
. 1977 Sep;40(9):926–931. doi: 10.1136/jnnp.40.9.926

Subarachnoid haemorrhage of unknown aetiology

A clinical and radiological study of 51 cases

R D Hayward 1
PMCID: PMC492868  PMID: 599369

Abstract

A detailed clinical and radiological study of 51 patients presenting with a subarachnoid haemorrhage, for which no cause could be found, has been described. Although selection for full investigation has favoured the inclusion of younger and fitter patients, analysis of the information obtained suggests that haemorrhage could be due to: (a) aneurysms undergoing thrombosis at the time of haemorrhage, in which subsequent recanalisation will produce a low incidence of further bleeding; (b) minute (2 mm) aneurysms, destroyed at the time of haemorrhage and posing no subsequent threat.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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