Subarachnoid hemorrhage in ten questions - 07/08/15
, C. Rodriguez-Régent a, J. Hodel b, R. Aboukais c, D. Trystram a, J.-P. Pruvo b, J.-F. Meder a, C. Oppenheim a, J.-P. Lejeune c, X. Leclerc b, O. Naggara a
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Abstract |
Traumatic subarachnoid hemorrhage (SAH) has an annual incidence of 9 per 100 000 people. It is a rare but serious event, with an estimated mortality rate of 40% within the first 48hours. In 85% of cases, it is due to rupture of an intracranial aneurysm. In the early phase, during the first 24hours, cerebral CT, combined with intracranial CT angiography is recommended to make a positive diagnosis of SAH, to identify the cause and to investigate for an intracranial aneurysm. Cerebral MRI may be proposed if the patient's clinical condition allows it. FLAIR imaging is more sensitive than CT to demonstrate a subarachnoid hemorrhage and offers greater degrees of sensitivity for the diagnosis of restricted subarachnoid hemorrhage in cortical sulcus. A lumbar puncture should be performed if these investigations are normal while clinical suspicion is high.
Le texte complet de cet article est disponible en PDF.Keywords : Hemorrhage, Intracranial aneurysm, CT, MRI
Plan
Vol 96 - N° 7-8
P. 657-666 - juillet 2015 Retour au numéro
Article précédent
- Vascular emergencies: Diagnosis and treatment
- D. Krausé, J.-M. Bartoli
- Endovascular treatment of ruptured intracranial aneurysms: Indications, techniques and results
- R. Anxionnat, R. Tonnelet, A.L. Derelle, L. Liao, C. Barbier, S. Bracard
Bienvenue sur EM-consulte, la référence des professionnels de santé.