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Heart 78:569-571 doi:10.1136/hrt.78.6.569
  • Paper

Exercise capacity in chronic heart failure is related to the aetiology of heart disease

Table 1

Comparison of dilated cardiomyopathy and ischaemic heart disease patient groups

DCM (n=90) IHD (n=122) p value
Age (years) 58.45  (11.66) 61.49  (7.42) 0.02
LVEF (%) 28.2  (17.1) 25.7  (12.1) 0.27
Fractional shortening (%) 19.2  (10.2) 16.5  (9.8) 0.1
PeakV˙o 2 (ml/kg/min) 19.9  (7.9) 16.4  (5.4) <0.001
% PredictedV˙o 2 68.8  (27.2) 53.6  (17.2) <0.001
V˙E/V˙co 2slope 34.7  (10.9) 37.1  (12.8) 0.15
RER at peak 1.19  (0.15) 1.15  (0.18) 0.1
  • LVEF, left ventricular ejection fraction;V˙o 2, oxygen consumption;V˙E/V˙co 2 slope, slope of the relation between ventilation and carbon dioxide production; RER, respiratory exchange ratio.

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