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Table 2 Changes in haemodynamic variables induced by volume expansion

From: How to detect a positive response to a fluid bolus when cardiac output is not measured?

 Before volume expansionAfter volume expansion
Heart rate (mean ± SD, beats/min)
 Non-responders92 ± 2191 ± 21*
 Responders99 ± 22#97 ± 20*#
Systolic arterial pressure (mean ± SD, mmHg)
 Non-responders110 ± 22117 ± 25*
 Responders109 ± 22128 ± 25*#
Diastolic arterial pressure (mean ± SD, mmHg)
 Non-responders55 ± 1257 ± 13*
 Responders53 ± 1159 ± 13*
Mean arterial pressure (mean ± SD, mmHg)
 Non-responders71 ± 1675 ± 18*
 Responders69 ± 1479 ± 17*
Arterial pulse pressure (mean ± SD, mmHg)
 Non-responders55 ± 1760 ± 19*
 Responders56 ± 1869 ± 21*#
Shock index (mean ± SD, beats/min/mmHg)
 Non-responders0.87 ± 0.280.81 ± 0.25*
 Responders0.95 ± 0.36#0.79 ± 0.22*
Cardiac index (mean ± SD, L/min/m2)
 Non-responders3.4 ± 1.23.6 ± 1.3*
 Responders2.8 ± 1.0#3.7 ± 1.2*
Arterial elastance (mean ± SD, mmHg/mL)
 Non-responders1.71 ± 0.741.64 ± 0.73*
 Responders2.27 ± 1.08#1.61 ± 0.61*
  1. N = 275 in responders and 216 in non-responders
  2. * p < 0.05 vs. Before volume expansion (comparisons in rows); # p < 0.05 vs. Non-responders (comparisons in columns)