title: [Clinical, neuroradiologic and developmental aspects of idiopathic benign subarachnoid hemorrhage (subarachnoid hemorrhage of unknown cause). Retrospective study of 65 cases].
abstract: Sixty-five patients with a mean age of 50.2 +/- 10.9 were admitted with a subarachnoid hemorrhage and a subsequent normal cerebral panangiography. On admission, 69% of the patients were graded I or II on the Hunt and Hess scale, versus 14% of them admitted on grade IV or V. Fifty-one patients (78%) were submitted to a second angiography between day 10 and day 132 after their hemorrhage (average day 29). A third angiography was performed on twenty-six patients (40%). Angiographic vasospasm was present on 52% of the first angiograms and affected predominantly the vertebro-basilar arterial system. On the second angiography, the vasospasm was still present on 26 out of 32 angiograms performed before day 30, and was only noted on 2 out of 19 angiograms performed later. No rebleeding was recorded in this group of patients who were followed-up for an average of 49 +/- 23 months. Complication as acute hydrocephalus affected 17% of the patients. In two patients (3%), symptomatic vasospasm was judged responsible of a delayed neurological deficit with concomitant hypodensity on the CT scan. Angiographic explorations were complicated by a transient ischemic deficit in 3 cases and by a fatal stroke in one case (4 cases out of 65 procedures, or 6%). As another patient died with bronchopneumonia during the hospitalization, the initial mortality rate was 3%. During the period of follow-up, two patients died from medical causes unrelated to their initial hemorrhage. Finally, 92% of the patients were alive and in an excellent or good clinical condition.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Clinique Universitaire de Neurochirurgie, Groupe Hospitalier Pellegrin Tripode, Bordeaux.
authors.forename: H
authors.initials: H
authors.lastname: Loiseau
authors.forename: J P
authors.initials: JP
authors.lastname: Castel
authors.forename: H P
authors.initials: HP
authors.lastname: Stoïber
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D003329:Coronary Vasospasm / Q000000981:diagnostic imaging; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013345:Subarachnoid Hemorrhage / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
vernacular_title: Aspects cliniques, neuroradiologiques et évolutifs du syndrome d' "hémorragie méningée bénigne idiopathique" (hémorragie méningée sans cause reconnue). Etude rétrospective de 65 patients.