Clinical Presentation, Etiology, and Long-Term Prognosis in Patients With Nontraumatic Convexal Subarachnoid Hemorrhage

• DOI: 10.1161/strokeaha.111.621847
• Publication Date: 2011-09-16T11:17:39Z
• Authors: Markus Beitzke; Thomas Gattringer; Christian Enzinger; Gerit Wagner; Kurt Niederkorn; Franz Fazekas
• Keywords: Etiology; Presentation (obstetrics)

Nontraumatic subarachnoid hemorrhage at the convexity of brain (cSAH) is an incompletely characterized subtype nonaneurysmal bleeding. This study sought to systematically describe clinical presentation, etiology, and long-term outcome in patients with cSAH.For a 6-year period, we searched our radiological database for nontraumatic hemorrhages (n=131) seen on CT or MRI. By subsequent image review, identified 24 cSAH defined by intrasulcal bleeding restricted hemispheric convexities. We reviewed their medical records, analyzed neuroimaging studies, followed up telephone visit.The had mean age 70 years (range, 37-88 years), 20 (83%) were >60 years, 13 (54%) women. Patients often presented transient sensory and/or motor symptoms (n=10 [42%]) seizures (n=5 [21%]), whereas headaches typical rare (n=4 [17%]). MRI provided evidence prior bleedings 11 (microbleeds 10 parenchymal bleeds 5) pattern suggestive cerebral amyloid angiopathy 5 subjects. At follow-up (after 33 months), 14 (64%) unfavorable (modified Rankin scale score 3-6), including deaths. did not observe recurrent cSAH.Our data suggest that presents features In elderly, frequently associated bleeding-prone conditions such as angiopathy. Recurrence but condition itself marker poor prognosis.