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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Cereb+Blood+Flow+Metab
2016 ; 36
(4
): 721-30
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Stroke neuroprotection revisited: Intra-arterial verapamil is profoundly
neuroprotective in experimental acute ischemic stroke
#MMPMID26661189
Maniskas ME
; Roberts JM
; Aron I
; Fraser JF
; Bix GJ
J Cereb Blood Flow Metab
2016[Apr]; 36
(4
): 721-30
PMID26661189
show ga
While clinical trials have now solidified the role of thrombectomy in emergent
large vessel occlusive stroke, additional therapies are needed to optimize
patient outcome. Using our previously described experimental ischemic stroke
model for evaluating adjunctive intra-arterial drug therapy after vessel
recanalization, we studied the potential neuroprotective effects of verapamil. A
calcium channel blocker, verapamil is often infused intra-arterially by
neurointerventionalists to treat cerebral vasospasm. Such a direct route of
administration allows for both focused targeting of stroke-impacted brain tissue
and minimizes potential systemic side effects. Intra-arterial administration of
verapamil at a flow rate of 2.5?µl/min and injection volume of 10?µl immediately
after middle cerebral artery recanalization in C57/Bl6 mice was shown to be
profoundly neuroprotective as compared to intra-arterial vehicle-treated stroke
controls. Specifically, we noted a significant (P???0.05) decrease in infarct
volume, astrogliosis, and cellular apoptosis as well as a significant increase in
neuronal survival and functional outcome over seven days. Furthermore,
intra-arterial administration of verapamil was well tolerated with no hemorrhage,
systemic side effects, or increased mortality. Thus, verapamil administered
intra-arterially immediately following recanalization in experimental ischemic
stroke is both safe and neuroprotective and merits further study as a potential
therapeutic adjunct to thrombectomy.