منابع مشابه
Hemodynamic effects of middle cerebral artery stenosis and occlusion.
BACKGROUND AND PURPOSE Middle cerebral artery (MCA) stenosis and occlusion may cause ischemic symptoms through both hemodynamic and embolic mechanisms. The purpose of this investigation was to determine the hemodynamic effects of these lesions. METHODS Ten patients with angiographically confirmed symptomatic occlusion (n = 5) or stenosis (n = 5) of the M1 segment of the MCA were studied by cl...
متن کاملFrequent ischemic events related to varying middle cerebral artery stenosis.
We herein present the cases of two patients with multiple ischemic events, presumably due to varying degrees of middle cerebral artery (MCA) stenosis. The first patient was treated medically, and the symptoms and degree of MCA stenosis varied over several months. The second patient received emergent bypass surgery and experienced no further events, although the MCA stenosis progressed over four...
متن کاملEmbolism distal to stenosis of the middle cerebral artery.
Fibrin-platelet microembolism in cortical branches distal to stenosis of the middle cerebral artery was directly visualized in a patient with transient ischemic attacks (TIA) and was histopathologically confirmed. Cerebral microembolism may produce TIA in patients with stenosis of the middle cerebral artery and may influence the success of the extracranial-intracranial bypass operation in treat...
متن کاملDynamic autoregulation testing in patients with middle cerebral artery stenosis.
BACKGROUND AND PURPOSE Cross-spectral analysis (CSA) of spontaneous oscillations in cerebral blood flow velocity (CBFV) and arterial blood pressure is considered a sensitive and convenient method for dynamic autoregulation testing. So far, it has been unclear whether CSA can be used to assess stenoses of the intracranial arteries. METHODS This study for the first time applies CSA to 26 patien...
متن کاملOriginal Contributions Prognosis in Middle Cerebral Artery Stenosis
Among 21 patients with angiographically demonstrated stenosis of the middle cerebral artery (MCA) 14 presented with a stroke and 7 with transient ischaemic attacks (TIAs). Of the former 4 had further strokes (3 fatal); of the latter one had a fatal stroke. Only 2 of the 21 patients had TIAs during the follow-up period. The present study indicates that the prognosis for patients with MCA stenosi...
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ژورنال
عنوان ژورنال: Stroke
سال: 1985
ISSN: 0039-2499,1524-4628
DOI: 10.1161/str.16.2.331a