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  • Title: Central venous pressure-volume relationship with head-down tilt and LBNP.
    Author: Hughson RL, MacDonald MJ, Ter-Vrugt RC, Northey DR.
    Journal: J Gravit Physiol; 1998 Jul; 5(1):P37-8. PubMed ID: 11542356.
    Abstract:
    Heart rate and stroke volume were measured after supine rest and 90 minutes of head-down tilt and lower body negative pressure. Inferior vena cava changes were measured with Doppler ultrasound. Results indicate that Doppler imaging of the inferior vena cava combined with estimates of central venous pressure can be used to explore changes in venous compliance during head-down tilt bed rest.
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