Table 5

Comparison of characteristics and values of PetCO2 between patients with ROSC and without ROSC in shockable initial rhythm in cardiac arrest

ROSC (n = 211)

Non-ROSC (n = 93)

P value


Age (years)

58.6 ± 10.9

61.8 ± 13.6

0.03

Initial PetCO2 (kPa [mmHg])

2.7 ± 1.1 (20.3 ± 9.2)

1.8 ± 1.3 (13.5 ± 10)

<0.001

1 minute PetCO2 (kPa [mmHg])

3.6 ± 1.3 (27.1 ± 10)

2.6 ± 1.4 (19.6 ± 11)

<0.001

Average PetCO2 (0 to 10 minutes; kPa [mmHg])

2.9 ± 0.8 (21.8 ± 6.1)

1.1 ± 0.4 (8.3 ± 3.1)

<0.001

10 minute PetCO2 (kPa [mmHg])

3.3 ± 0.9 (24.8 ± 6.8)

1.2 ± 0.5 (9.1 ± 4.2)

<0.001

11 to 15 minute PetCO2 (kPa [mmHg])

3.2 ± 0.7 (24.1 ± 5.1)

0.9 ± 0.3 (6.8 ± 2.7)

<0.001

15 minute PetCO2 (kPa [mmHg])

3.7 ± 0.9 (27.9 ± 6.8)

1.1 ± 0.4 (8.3 ± 3.4)

<0.001

20 minute PetCO2 (kPa [mmHg])

4.3 ± 1.1 (32.3 ± 8.7)

0.9 ± 0.3 (7.1 ± 2.6)

<0.001

Max PetCO2 (kPa [mmHg])

5.3 ± 1.5 (39.9 ± 11.3)

1.7 ± 0.6 (12.8 ± 5.5)

<0.001

Final PetCO2 (kPa [mmHg])

3.7 ± 0.9 (27.8 ± 6.6)

1.0 ± 0.3 (7.5 ± 2.7)

<0.001


'Shockable' was defined as ventricular fibrillation or pulseless tachycardia. Values are expressed as mean ± standard deviation. PetCO2, partial pressure of end-tidal carbon dioxide; ROSC, restoration of spontaneous circulation

Kolar et al. Critical Care 2008 12:R115   doi:10.1186/cc7009

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