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Table 2 CPET-derived parameters using the self-preferred and guideline-based approach in individual patients

From: Inter-observer agreement of preoperative cardiopulmonary exercise test interpretation in major abdominal surgery

Patient

SPA

V̇O2VAT (mL/kg/min)

GBA

V̇O2VAT (mL/kg/min)

Number of observations

V̇O2VAT

(SPA; GBA)

SPA

V̇O2peak (mL/kg/min)

GBA

Valid V̇O2peaka (mL/kg/min)

Number of observations

V̇O2peak (SPA; GBA)

SPA

V̇E/V̇CO2-slope

GBA

V̇E/V̇CO2-slope

Number of observations

V̇E/V̇CO2-slope (SPA b; GBA)

GBA

OUES/kg

Number of observations OUES (GBA)

1

11.1 ± 0.9

11.4 ± 0.8

26;25

15.2 ± 0.8

15.2 ± 0.1

26;26

24.3 ± 2.8

24.1 ± 1.3

24;26

17.4 (0.7)

26

2

13.6 ± 3.0

12.9 ± 1.0

26;26

22.8 ± 1.7

23.2 ± 0.5

26;18

30.3 ± 1.8

31.2 ± 1.1

24;26

24.8 (0.1)

26

3

9.6 ± 1.2

9.8 ± 1.4

22;22

12.7 ± 0.3

12.5 ± 0.1

26;21

34.2 ± 2.2

32.5 ± 1.0

22 c;26

16.6 (0.3)

26

4

15.9 ± 2.0

16.3 ± 2.1

26;25

26.7 ± 0.1

26.5 ± 0.1

26;26

21.1 ± 2.8

21.3 ± 0.5

24;26

29.2 (0.4)

26

5

11.8 ± 1.2

11.7 ± 1.1

26;26

15.7 ± 0.3

15.3 ± 0.3

26;26

31.6 ± 3.2

32.4 ± 2.3

24;26

20.4 (1.5)

26

6

15.2 ± 0.8

15.5 ± 1.1

26;26

20.6 ± 0.2

20.6 ± 0.0

26;24

21.6 ± 4.3

21.2 ± 1.1

24;26

26.0 (2.1)

26

7

8.6 ± 0.7

9.0 ± 0.7

26;26

11.7 ± 0.6

11.3 ± 0.2

26;18

34.9 ± 3.5

36.1 ± 2.2

24;26

14.1 (0.3)

26

8

15.7 ± 0.5

15.9 ± 0.9

25;26

23.8 ± 0.2

23.5 ± 0.3

26;25

24.0 ± 2.7

24.4 ± 1.0

24;26

31.4 (0.7)

26

9

8.6 ± 0.5

8.8 ± 0.5

26;26

12.0 ± 1.9

11.4 ± 0.1

26;12

34.2 ± 2.2

32.7 ± 0.3

24;26

15.9 (0.0)

26

10

13.7 ± 1.6

13.9 ± 1.7

26;26

21.4 ± 0.1

21.4 ± 0.0

26;22

34.3 ± 3.1

34.5 ± 1.0

24;26

23.7 (0.8)

26

11

10.3 ± 0.8

10.5 ± 0.8

22;22

12.3 ± 0.1

12.3 ± 0.3

26;8

45.2 ± 2.1

46.1 ± 0.4

24;26

12.2 (0.2)

26

12

11.5 ± 1.4

11.5 ± 1.6

24;24

14.4 ± 0.4

14.3 ± 0.1

26;8

30.9 ± 1.3

31.1 ± 0.8

22 c;26

23.3 (0.2)

26

Grand mean

12.1 ± 2.6

12.3 ± 2.6

25;25

17.4 ± 5.3

17.3 ± 5.4

26;20

30.7 ± 6.9

30.6 ± 7.1

24;26

21.6 (6.1)

26

Grand mean difference d (P-value)

−0.2 (P = 0.903)

 

0.2 (P = 0.946)

 

0.1 (P = 0.977)

   
  1. Values are reported as mean ± SD
  2. aValidity of the attained V̇O2peak based on objective criteria of a maximal effort was only determined using the guideline-based approach
  3. bMaximum number of observations was 24, as two observers were unfamiliar with interpretation of the V̇E/V̇CO2-slope and therefore did not report this parameter
  4. cMissing values of unknown origin
  5. dGrand mean difference was calculated as SPA minus GBA
  6. Abbreviations: CPET Cardiopulmonary exercise testing, GBA Guideline-based approach, OUES Oxygen uptake efficiency slope, SD Standard deviation, SPA Self-preferred approach, V̇E/V̇CO2-slope Slope of the relationship between the minute ventilation and carbon dioxide production, V̇O2peak Oxygen uptake at peak exercise, V̇O2VAT Oxygen uptake at the ventilatory anaerobic threshold
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BMC Anesthesiology

ISSN: 1471-2253

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