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Table 2 Cardiopulmonary exercise test score (modified from Ref # 23)

From: Cardiopulmonary exercise testing and echocardiographic exam: an useful interaction

Variable

Value

Points

VE/VCO2slope

≥34

7

HR recovery

≤6

5a

O2 uptake efficiency slope

≤1.4

2

Peak VO2

< 14 mL/Kg/min

2

  1. Score > 15 points: annual mortality rate 12.2%
  2. a2 point if undergoing beta-blocker therapy