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Published on: March 21, 2013
Leg blood flow measurements using venous occlusion plethysmography during head-up tilt
Miriam Kooijman1, Fleur Poelkens, Gerard A Rongen
1Dept of Physiology, Radboud University Nijmegen Medical Centre, Institute for Fundamental and Clinical Movement Sciences, Nijmegen, The Netherlands.
Abstract:
We tested whether venous occlusion plethysmography (VOP) is an appropriate method to measure calf blood flow (CBF) during head-up tilt (HUT). CBF measured with VOP was compared with superficial femoral artery blood flow as measured by Doppler ultrasound during incremental tilt angles. Measurements of both methods correlated well (r = 0.86). Reproducibility of VOP was fair in supine position and 30 degrees HUT (CV: 11%-15%). This indicates that VOP is an applicable tool to measure leg blood flow during HUT, especially up to 30 degrees HUT.
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