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Table 1

From: Evaluation of the Spiegelberg method and the bladder method with different intravesical volumes for measurement of intra-abdominal pressure in a porcine model of intra-abdominal hypertension

IVP versus SP

Bias ± SEM (mmHg)

Agreement (mmHg)

IVP (10 ml) – SP

0.1 ± 1.6

-4.8 to 4.9

IVP (20 ml) – SP

0.4 ± 1.8

-5.7 to 6.6

IVP (30 ml) – SP

0.9 ± 1.9

-6.5 to 8.2*

IVP (40 ml) – SP

0.5 ± 1.8

-5.7 to 6.8

IVP (50 ml) – SP

0.9 ± 1.9

-6.0 to 7.8

  1. *P < 0.05 vs 10 ml priming volume.
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Critical Care

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