Cerebral blood flow velocities are reduced during attacks of unilateral migraine without aura.

@article{Thomsen1995CerebralBF,
  title={Cerebral blood flow velocities are reduced during attacks of unilateral migraine without aura.},
  author={Lise Lykke Thomsen and Helle K. Iversen and Jes Olesen},
  journal={Cephalalgia : an international journal of headache},
  year={1995},
  volume={15 2},
  pages={109-16}
}
It has been disputed whether or not large intracranial arteries are dilated during migraine attacks. In order to answer this question the present transcranial Doppler study focused on side-to-side differences of middle cerebral artery blood velocity during unilateral attacks of migraine without aura in 25 patients. Blood velocity in the middle cerebral artery was lower on the headache side (59 cm/s) than on the non-headache side (65 cm/s) during the migraine attack. No such difference was found… CONTINUE READING