Cardiac output by pulse contour analysis does not match the increase measured by rebreathing during human spaceflight

This study demonstrated that pulse contour analysis of finger arterial blood pressure to estimate cardiac output failed to track the 46% increase measured by a rebreathing method. These results strongly suggest that alternative methods not dependent on pulse contour analysis are required to track cardiac function in spaceflight.

Source: Journal of Applied Physiology - November 6, 2017 Category: Physiology Authors: Hughson, R. L., Peterson, S. D., Yee, N. J., Greaves, D. K. Tags: RESEARCH ARTICLE Source Type: research