Stroke, Vol 19, 1420-1425, Copyright © 1988 by American Heart Association
S Endo, PJ Branson and JF Alksne
The common carotid arteries were ligated bilaterally 2 weeks before
induction of subarachnoid hemorrhage in rabbits. The rabbits were observed
closely for clinical symptoms, and angiographic and pathologic
investigations were performed. Thirteen experimental rabbits showed a
progressing neurologic deficit that was worst on the fourth or fifth day
after the subarachnoid hemorrhage. This symptomatic change did not occur in
five rabbits without previous carotid ligation. Presumably, the rabbits
with carotid ligation became symptomatic because they no longer had a
collateral blood flow to compensate for the reduced blood flow in the
basilar artery after subarachnoid hemorrhage. Our model of symptomatic
vasospasm after subarachnoid hemorrhage may be beneficial for future
studies.
ARTICLES
Experimental model of symptomatic vasospasm in rabbits
Toyama Medical and Pharmaceutical University, Japan.
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