title: [Orthostatic arterial hypotension and giant aneurysm of the basilar trunk].
abstract: The authors report two observations of giant aneurysm of basilar artery, where the first neurological signs were preceded or escorted by a postural hypotension. They emphasize the place of rhombencephon in the control of blood pressure and they bring together their cases with those reporting a postural hypotension revealing a lesion of medulla. They insist upon the necessity to look a peripheric and central neurological lesion in front of a postural hypotension.
mesh_terms: D000328:Adult; D000783:Aneurysm / Q000150:complications* / Q000000981:diagnostic imaging; D001488:Basilar Artery; D005260:Female; D006801:Humans; D007024:Hypotension, Orthostatic / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D011859:Radiography
vernacular_title: Hypotension artérielle orthostatique et anévrysme géant du tronc basilaire.