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- W4385398520 abstract "<h3>Background</h3> Cerebral vasospasm is one of the most fatal complications after spontaneous aneurysmal subarachnoid hemorrhage. Although various treatments have been tried for the treatment of cerebral vasospasm so far, the effect is insignificant or temporary except for oral nimodipine. Phosphodiesterase isozyme type 5 inhibitor, which is used to treat erection dysfunction, recently has been known to have a cerebrovascular vasodilation. It is thought that this will be effective in cerebral vasospasm, and the effect will be compared and analyzed with oral nimodipine through an animal model of cerebral vasospasm. <h3>Methods</h3> A total of 40 rabbits were used to make subarachnoid hemorrhage model and were divided into three groups - a control group, nimodipine group, and tadalafil group. The cerebral vessels were angiographically measured before and on the third day of subarachnoid hemorrhage. Then vertebrobasilar arteries were harvested and evaluated. Under the microscope, lumen area and media area were measured for each group and were compared. <h3>Results</h3> Angiographically, tadalafil group showed significant vasodilation compared with the control group (<i>p</i><0.01). Histologically, tadalafil showed a similar effect on lumen and on media area to that of nimodipine group compared with the control group. <h3>Conclusion</h3> Cerebral vasospasm could leave neurologic deficit or sequelae even after proper treatment. Therefore, prevention is important. Tadalafil showed preventive effect against cerebral vasospasm and vasodilative effect similar to that of nimodipine. Therefore, tadalafil could be considered an alternative preventive treatment of cerebral vasospasm. <h3>Disclosures</h3> <b>J. Lim:</b> 1; C; Chungnam National University Hospital(No. 2019-CF-032 and No. 2021-2129-01), National Research Foundation (No.2022-0222-01) of Korea. <b>K. Jung:</b> None. <b>H. Byoun:</b> None." @default.
- W4385398520 created "2023-07-31" @default.
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- W4385398520 date "2023-07-01" @default.
- W4385398520 modified "2023-09-25" @default.
- W4385398520 title "E-209 Comparative analysis of the vasodilatory effects of enteral nimodipine and tadalafil in an animal model of cerebral vasospasm" @default.
- W4385398520 doi "https://doi.org/10.1136/jnis-2023-snis.308" @default.
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