Stroke, Vol 19, 322-325, Copyright © 1988 by American Heart Association
R Suzuki, K Ohno, Y Matsushima and Y Inaba
Seventeen separate xenon-enhanced computed tomographic images were
performed in seven patients with hypertensive putaminal hemorrhage.
Regional cerebral blood flow maps were then computed and assessed. All
patients were categorized as being of good recovery potential, with
moderate-sized hematomas, and all were treated conservatively. The regional
cerebral blood flow assessments were scheduled within 4 days after, 2 weeks
after, and less than 25 days after the ictus. The initial decrease in
hemispheric blood flow ipsilateral to the side of the hematoma was
calculated as the ratio of ipsilateral to contralateral hemispheric blood
flow and was correlated with the size of the hematoma; that is, the larger
the hematoma, the greater the decrease in the ratio of ipsilateral to
contralateral hemispheric blood flow. The decrease persisted for 1 month.
The mean of the ratio at 2 weeks after onset was 70%, the lowest during
follow-up. All cases examined within 4 days after onset demonstrated
perihematomatous focal hyperemia, or "luxury perfusion," which accounted
for the delayed decrease. The same tissue that had previously shown
hyperemia showed decreased regional cerebral blood flow 2 weeks after
onset. Our results demonstrate that the luxury perfusion syndrome caused
the secondary brain damage even in the cases that were in relatively good
condition. The feasibility of treatment can be assessed by considering
these results.
ARTICLES
Serial changes in focal hyperemia associated with hypertensive putaminal hemorrhage
Department of Neurosurgery, Tokyo Medical and Dental University, Japan.
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