PMC4074111_01
Oxygen pulse (VO2/HR) at the time of the diagnosis. x-axis: VO2; left y-axis: heart rate (HR) represented by red dots; right y-axis: VO2/HR represented by blue dots.
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F1
Hg). However, analysis of CPET, in spite of normal metabolic and ventilatory responses, showed an abnormal cardiovascular finding relative to the pattern of increased increase of increase VO2 relative to work rate below and above anaerobic threshold (Figure 1A): the DeltaVO2/DeltaWR ratio was reduced from 11.3 ml/min/W to 6.9 ml/min/; furthermore, changes both in oxygen-pulse (Figure 1B) and in electrocardiographic signs that could be due to different causes were observed.
Oxygen pulse (VO2/HR) after cardiac therapy. x-axis: VO2; left y-axis: heart rate (HR) represented by red dots; right y-axis: VO2/HR represented by blue dots.
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PMC4074111_01_2049-6958-9-31-2.jpg
F2