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Clinical presentation as a guide to early prognosis in vertebrobasilar stroke.
Stroke; a Journal of Cerebral Circulation 1992 Februrary
BACKGROUND AND PURPOSE: This study attempts to assess the feasibility and heuristic value of a classification scheme for vertebrobasilar stroke.
METHOD: Fifty-seven consecutive patients with vertebrobasilar stroke were classified on the basis of clinical features and computed tomographic abnormalities into single-sector (n = 19), multisector (n = 11), and top-of-the-basilar (n = 27) groups; a sector was defined as that portion of the brain stem supplied by a single penetrating (median) or branch (paramedian or lateral) artery.
RESULTS: Thirty-day and 3-year survival rates were 100% and 71%, respectively, in the single-sector group, and 96% and 73%, respectively, in the top-of-the-basilar group. Thirty-day and 3-year stroke recurrence free survival rates were 89% and 76%, respectively, in the single-sector group, and 96% and 88%, respectively, in the top-of-the-basilar group. Seven of the 11 patients in the multisector group died within 2 months of ictus, three having experienced recurrence.
CONCLUSIONS: These data, in part supported by prior studies, demonstrate the feasibility and heuristic value of the classification scheme and suggest that single-sector and top-of-the-basilar stroke patients have a relatively benign early prognosis and modest long-term stroke rates.
METHOD: Fifty-seven consecutive patients with vertebrobasilar stroke were classified on the basis of clinical features and computed tomographic abnormalities into single-sector (n = 19), multisector (n = 11), and top-of-the-basilar (n = 27) groups; a sector was defined as that portion of the brain stem supplied by a single penetrating (median) or branch (paramedian or lateral) artery.
RESULTS: Thirty-day and 3-year survival rates were 100% and 71%, respectively, in the single-sector group, and 96% and 73%, respectively, in the top-of-the-basilar group. Thirty-day and 3-year stroke recurrence free survival rates were 89% and 76%, respectively, in the single-sector group, and 96% and 88%, respectively, in the top-of-the-basilar group. Seven of the 11 patients in the multisector group died within 2 months of ictus, three having experienced recurrence.
CONCLUSIONS: These data, in part supported by prior studies, demonstrate the feasibility and heuristic value of the classification scheme and suggest that single-sector and top-of-the-basilar stroke patients have a relatively benign early prognosis and modest long-term stroke rates.
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