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 RESEARCH ARTICLE
Year : 2002  |  Volume : 50  |  Issue : 4  |  Page : 459--61

Assessment of cerebral blood flow velocities in pre and post angiographic states with transcranial doppler.


Department of Neurosurgery, Osmangazi University, Faculty of Medicine, Eskisehir, Turkey., Turkey

Correspondence Address:
A Arslantas
Department of Neurosurgery, Osmangazi University, Faculty of Medicine, Eskisehir, Turkey.
Turkey
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Source of Support: None, Conflict of Interest: None


PMID: 12577095

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The frequency of complications resulting from angiograms reported in the literature vary between 0.2-5 percent. This study was planned to determine the changes in cerebral blood flow velocity before and after angiography, using transcranial doppler in patients of subarachnoid hemorrhage (SAH) undergoing angiographies. Thirty patients with subarachnoid hemorrhage underwent transcranial doppler ultrasonography immediately before and after angiography. Nonionic water-soluble agents were used during the angiograms. The mean flow velocity (MFV) and pulsatility index (PI) at the M1 segment of both middle cerebral arteries was simultaneously measured. When the patients (11 male, 19 female, mean age+SD; 52.45+12.06) were compared according to changes in MFV and PI, pre and post-angiography, there was no statistical difference in MFV (p=0.51 and p=0.99, left and right side respectively), and in PI (p=0.48 and p=0.66) pre and post angiography. Although angiogram can be used to detect vasospasm in SAH, it can also be cause of vasospasm, partially due to the effect of the contrast agent on the cerebral arteries. This study proposes that the angiographic method is still safe and TCD can be used to follow up any possible changes in diameter of cerebral arteries before and after angiography.






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Online since 20th March '04
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