title: [Subarachnoid hemorrhage. Etiopathogenetic aspects].
abstract: Data from existent literature and from analysis of 60 personal cases of subarachnoid hemorrhage are examined in order to clarify the etiologic and pathogenetic mechanisms. In about 50% of the patients intracranial arterial aneurysms are found; in a lower percentage arteriovenous malformations or arterial atherosclerotic lesions are seen. Specific activities or events related to the onset of subarachnoid hemorrhage are found in about 50% of the cases.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D004644:Emotions; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications; D002538:Intracranial Arteriovenous Malformations / Q000150:complications; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D012737:Sex Factors; D012890:Sleep; D013345:Subarachnoid Hemorrhage / Q000209:etiology* / Q000473:pathology
vernacular_title: Emorragia subaracnoidea. Aspetti eziopatogenetici.