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KMID : 1211620150100010115
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Journal of the Korean Society of Physical Medicine
2015 Volume.10 No. 1 p.115 ~ p.120
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Changes in Posterior Cerebral Artery Blood flow Velocity Following Head rotation and body Positioning
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Park Min-Chull
Kim Jong-Soon
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Abstract
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PURPOSE: Vertebrobasilar insufficiency (VBI) should be carefully assessed in patient for whom manipulation of the cervical spine is to be undertaken. The purpose of this study was to investigate the changes in posterior cerebral artery blood flow velocity following head and body positioning by transcranial doppler ultrasonography (TCD) in healthy subjects
METHODS: Twenty two healthy female (mean age 20.77 ±1.30 yrs.) participants volunteered to participate in the study. None of the participants had a history of neck pain or headache within the last 6 months. To evaluate the cerebral blood flow, we measured the mean flow velocity of the posterior cerebral artery unilaterally (right side). The blood flow velocity was measured under 3 different head positions (in a neutral head position, ipsilateral head rotation and contralateral head rotation position) and 2 different body conditions (supine position and sitting position).
RESULTS: The mean blood flow velocity of posterior cerebral artery was decreased in body positioning from supine to sitting (p<.05), but the decreased rate of blood flow velocity in posterior cerebral artery did not change significantly between ipsilateral head rotation and contralateral head rotation (p>.05).
CONCLUSION: These result of our study show that body positioning (sitting and supine) affect the blood flow velocity in posterior cerebral artery.
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KEYWORD
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Posterior cerebral artery, Blood flow velocity, Vertebrobasilar insufficiency
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