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Some evidence points to the vasodilatory role of sympathetic blockade in patients of aneurysmal subarachnoid hemorrhage, which is consistent with moderate-sized intracranial arteries, but the effect on medium-sized intracranial arteries remains unclear. In two patients, we present the findings of serial cerebral angiography to investigate the cerebral vasodilatory effects of percutaneous inferior ganglion block. With a marginal decrease in the ACA's diameter, there was an average increase in intracranial ICA and MCA diameter at 1 minute, 5 minutes, and ten minutes, according to Patient 1. In Patient 2, there was an average increase in intracranial ICA and MCA diameters at 1 minute, 5 minutes, 20 minutes, and 30 minutes, with a small increase in diameter observed at 5 minutes, 10 minutes, and 30 minutes, with a significant increase in diameter in the ACA at 5 minutes, 10 minutes, and 30 minutes.
Source link: https://europepmc.org/article/MED/36115565
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