Comparison of intrathecal flunarizine and nimodipine treatments in cerebral vasospasm after experimental subarachnoid hemorrhage in rabbits

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Abstract

Background: The aim of this study was to assess and to compare the ability of intrathecal flunarizine and nimodipine to prevent vasospasm in a rabbit model of subarachnoid hemorrhage (SAH). Method: Forty male New Zealand white rabbits were allocated into 5 groups randomly. The treatment groups were as follows: (1) control (no SAH [n = 8]), (2) SAH only (n = 8), (3) SAH plus vehicle (n = 8), (4) SAH plus nimodipine (n = 8), and (5) SAH plus flunarizine (n = 8). Before sacrifice, all animals underwent femoral artery catheterization procedure by open surgery under anesthesia and angiography performed for each animal. Findings: There was a statistically significant difference between the mean basilar artery cross-sectional areas and the mean arterial wall thickness measurements of the control and SAH-only groups (p < 0.05). Basilar artery vessel diameter and luminal section areas in group 4 were significantly higher than in group 2 (p < 0.05). Basilar artery vessel diameter and basilar artery luminal section areas in group 5 were significantly higher than in group 2 (p < 0.05).Basilar artery vessel diameter and basilar artery luminal section areas in group 5 were significantly higher than in group 4 (p < 0.05). Conclusions: These findings demonstrate that flunarizine has marked vasodilatatory effect in an experimental model of SAH in rabbits. © Springer-Verlag/Wien 2011.

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Civelek, E., Solmaz, I., Onal, M. B., Kircelli, A., Temiz, C., Secer, H. I., … Gonul, E. (2011). Comparison of intrathecal flunarizine and nimodipine treatments in cerebral vasospasm after experimental subarachnoid hemorrhage in rabbits. In Acta Neurochirurgica, Supplementum (Vol. 110, pp. 69–73). Springer-Verlag Wien. https://doi.org/10.1007/978-3-7091-0356-2_13

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