Determination of the anaerobic threshold in the evaluation of functional status before and following valve replacement for aortic regurgitation.


The effect of aortic valve replacement on exercise capacity was evaluated in 28 patients with aortic regurgitation using repeat determinations of peak oxygen uptake (VO2) and the anaerobic threshold (AT), based on a nonlinear increase in the plot of pulmonary ventilation versus VO2. Although the AT was on average 68% of peak VO2 before and 1 year after… (More)


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