neuro_SAH_FF.md

Subarachnoid Haemorrhage.

Table of Contents

• Subarachnoid Haemorrhage.
  • Table of Contents
  • - References
  • Anatomy, Procedure & Technical
  • Guidelines
  • Clinical
  • Differentials
    • Convexity Subarachnoid
  • Radiological
  • Papers
  • How to Report
  • References

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Guidelines

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Differentials

Convexity Subarachnoid

1. CAA (39%) ¹
2. Reversible Cerebral Vasoconstriction Syndrome (17%)
3. Cerebral Venous Sinus Thrombosis (10%)
4. Large-vessel stenotic atherosclerosis (10%)
5. Posterior Reversible Encephalopathy (5%)
6. Some idiopathic - esp in elderly.

Based on 6ys of consecutive SAH codes in South Australia. n=742 but only 41(6%) were convexal.
They suggest this is underdiagnosed and is more likely 15%.

Others say AVM, mycotic aneurysms, cortical sinus thrombosis and hypertension are also possible causes.

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References

Footnotes

1. Khurram A, Kleinig T, Leyden J. Clinical Associations and Causes of Convexity Subarachnoid Haemorrhage. http://stroke.ahajournals.org/lookup/suppl/doi:10.1161/STROKEAHA.113.004298/-/DC1 ↩