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Table 3 Comparison of ideal group that obtained same mode during wash-in and maintenance

From: Xenon consumption during general surgery: a retrospective observational study

  Full-ECO mode Full-AUTO mode p-value
(n = 4) (n = 4)
Xenon wash-in phase:        
Duration of Wash-in (min) 16.8 ± 1.0§§ 11.3 ± 1.3 0.000
Total xenon consumption (l) 7.8 ± 0.5§§ 9.6 ± 0.9 0.010
Maintenance of anaesthesia:        
Time of maintenance (min) 128.5 ± 10.7 138.3 ± 9.2 0.217
Total xenon consumption (l) 12.0 ± 3.6§ 18.2 ± 3.1 0.041
Mean consumption (l/hour) 5.5 ± 1.4§ 7.8 ± 0.9 0.034
Mean FiO2 concentration (Vol%) 34.8 ± 0.8 33.1 ± 1.5 0.092
Mean Expiratory Xe concentr. (Vol%) 54.3 ± 1.4§§ 60 ± 1.3 0.001
Overall xenon consumption:        
Xenon usage 1st hour (l/min) 0.181 ± 0.021§ 0.256 ± 0.025 0.018
Xenon usage 2nd hour (l/min) 0.115 ± 0.034 0.141 ± 0.012 0.198
Xenon usage 3rd hour (l/min) 0.078 ± 0.018 0.128 ± 0.025 0.290
Time of xenon application (min) 145 ± 10.5 149.5 ± 8.3 0.217
Mean xenon consumption (l/hour) 8.2 ± 1.3§§ 11.1 ± 0.5 0.041
Total xenon consumption (l) 19.8 ± 3.8§§ 27.8 ± 2.4 0.037
  1. Data are presented as as mean±SD (normally distributed data). Bold italic P-values indicate significant difference between the groups (p < 0.05), §(§) = p < 0.05(0.01) vs. Full-AUTO mode.