title: [Clinical significance of thrombocytopenia associated with hemorrhagic cerebrovascular diseases].
abstract: We investigated the clinical significance of thrombocytopenia (platelet counts less than 10 x 10(4)/mm3) associated with hemorrhagic cerebrovascular disease. This study was conducted in 96 patients suffering from hemorrhagic cerebrovascular diseases. We divided the clinical course into 3 stages: acute (from the 1st to 7th day), subacute (8th-21st day) and chronic (after the 22nd day). The average age of the patients with thrombocytopenia (TCP) was 60.6 years old. TCP was more frequent in men (81.3%) than in women (18.7%). TCP developed in 18.6% (8/43) of patients with subarachnoid hemorrhage (SAH) and in 15.1% (8/53) of those with intracerebral hemorrhage (ICH). Among the patients with SAH, four were in the acute stage, three in the subacute stage and two in the chronic stage. TCP due to SAH was more likely to develop in the acute and/or subacute stage. TCP due to SAH showed two peak appearances: the first was within 24 hours (n = 3), and the second was around 10 days after onset (n = 3). The cause of TCP in its late peak appearance was presumed to be the consumption of platelets due to microembolism induced by vasospasm and/or hemodilution therapy. Among patients with ICH, five cases were in the acute stage, three in the subacute stage and two in the chronic stage. TCP due to ICH was more likely to develop in the acute stage. Fifty percent (4/8) of the patients with ICH had TCP on admission. This data suggested that TCP was possibly a cause or an inducer for ICH.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Neurosurgery, Ichihara Hospital, University of Teikyo School of Medicine, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Koide
authors.forename: S
authors.initials: S
authors.lastname: Manaka
authors.forename: K
authors.initials: K
authors.lastname: Takagi
authors.forename: T
authors.initials: T
authors.lastname: Kitamura
authors.forename: M
authors.initials: M
authors.lastname: Hirakawa
authors.forename: J
authors.initials: J
authors.lastname: Sashida
authors.forename: S
authors.initials: S
authors.lastname: Nomaguchi
mesh_terms: D000328:Adult; D000368:Aged; D002543:Cerebral Hemorrhage / Q000150:complications*; D005260:Female; D006801:Humans; D002546:Ischemic Attack, Transient / Q000150:complications; D008297:Male; D008875:Middle Aged; D010976:Platelet Count; D013345:Subarachnoid Hemorrhage / Q000150:complications*; D013921:Thrombocytopenia / Q000097:blood / Q000209:etiology*