The Effect of Head Positioning on the Cross-sectional Area of the Subclavian Vein.
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In the present study, the cross-sectional area of subclavian vein, the distances of subclavian vein ~ subclavian artery and subclavian vein ~ pleura are assessed in different head positions (neutral, rotation to ipsilateral or contralateral sides) in spontaneous breathing adults.
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Layout table for eligibility information
Ages Eligible for Study:
20 Years and older (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Healthy adults ≥ 20 yr
Medication affecting vascular elasticity
History of central venous catheterization or clavicle fracture