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INTERNATIONAL ANGIOLOGY

Rivista di Angiologia


Official Journal of the International Union of Angiology, the International Union of Phlebology and the Central European Vascular Forum
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International Angiology 1999 September;18(3):206-9

lingua: Inglese

Sin­gle lac­u­nar brain infarc­tion with tran­si­ent signs ver­sus those with long-last­ing signs

Oishi M., Moch­i­zu­ki Y., Shik­a­ta E.

Depart­ment of Neu­rol­o­gy, Nihon Uni­ver­sity ­School of Med­i­cine, Tokyo, Japan


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Back­ground. In order to find out the dif­fer­ence ­between sin­gle brain lac­u­nar infarc­tions with tran­sient signs and those with long-last­ing signs, cere­bral blood flow stud­ies and blood tests were per­formed.
Meth­ods. Ten cases of sin­gle lac­u­nar infarc­tion with tran­sient signs and 10 of sin­gle lac­u­nar infarc­tion with long-last­ing signs were stud­ied. Sub­cor­ti­cal cys­tic infarc­tions with a diam­e­ter of less than 1.5 cm were ­defined as lac­u­nar infarc­tion. Epi­sodes last­ing less than 24 hours were clas­si­fied as tran­sient signs and those last­ing 24 hours or more as long-last­ing signs. Meas­ure­ments: Cere­bral blood flows were meas­ured using the ­stable xenon com­put­ed tomog­ra­phy meth­od. The region­al cere­bral blood flows were meas­ured ­before and 20 min­utes after the intra­ve­nous injec­tion of 17 mg/kg acet­a­zol­a­mide. Plas­ma fibrin­o­pep­tide A, plate­let fac­tor 4 and β-throm­bo­glob­u­lin con­cen­tra­tions were deter­mined at the Spe­cial Ref­er­ence Labor­a­to­ries.
­Results. Blood flows in the cere­bral cor­tex and cere­bral white mat­ter con­tra­lat­er­al to the lac­u­nar infarc­tion were lower in the group with long-last­ing signs than in that with tran­sient signs. Cereb­ro­vas­cu­lar acet­a­zol­a­mide reac­tiv­ity in the cere­bral cor­tex and white mat­ter con­tra­lat­er­al to the lac­u­nar infarc­tion were lower in the group with long-last­ing signs than in that with tran­sient signs. Plas­ma fibrin­o­pep­tide A, plate­let fac­tor 4 and β-throm­bo­glob­u­lin con­cen­tra­tions were high­er in the long-last­ing signs group than in that with tran­sient signs.
Con­clu­sions. There may be some dif­fer­enc­es in path­o­gen­e­sis ­between sin­gle lac­u­nar infarc­tion with tran­sient signs and those with long-last­ing signs.

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