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Table 2 Measures of myocardial contractility pre and post VA-ECMO resuscitation of hypoxic cardiac arrest

From: Rat model of veno-arterial extracorporeal membrane oxygenation

Load independent measurements

Baseline

Post-arrest

P

Ees (Emax), mmHg/μL (SD)

2.3 (0.8)

1.4 (0.9)

0.04

PRSW, mmHg (SD)

60 (22)

70 (30)

0.46

Load dependent measurements

dP/dt max, mmHg/s (SD)

5221 (826)

3196 (1045)

<0.001

dP/dt min, mmHg/s (SD)

-5141 (1176)

-2162 (542)

<0.001

Cardiac output, μl/min (SD)

25749 (13835)

27008 (6994)

0.92

Stroke volume, μl (SD)

95 (38)

147 (51)

0.11

Stroke work, mmHg/μl (SD)

7192 (2566)

7371 (3419)

0.9

Diastolic function

Tau Glantz, msec (SD)

11.5 (2.0)

17.7 (8.4)

0.07

EDPVR (SD)

0.03 (0.0)

0.04 (0.03)

0.42

  1. E es (Emax), end-systolic elastance (slope of the end-systolic relationship); Preload recruitable stroke work; dP/dt max: Maximum rate of LV pressure change during systole; dP/dt min: Minimum rate of LV pressure change during systole; EDPVR: End diastolic pressure volume relationship. Continuous data are presented as mean with 95% confidential intervals (95% CI) or as median with interquartile ranges (IQR 25-75).