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Table 1 Means and standard deviations of areas and maximum power values that exceed the elastic pressure threshold of 20 cmH2O for the 5000 virtual ARDS patient population using the four modes (flow profiles) of ventilation

From: Intracycle power and ventilation mode as potential contributors to ventilator-induced lung injury

Statistic/mode Pset CF DF SF
Driving power area (mean) 0.1698 0.1698 0.1698 0.1698
Elastic power area (mean) 0.4078 0.4078 0.4078 0.4078
Total power area (mean) 0.5128 0.4693 0.4753 0.4849
Driving power area (standard deviation) 0.1968 0.1968 0.1968 0.1968
Elastic power area (standard deviation) 0.3986 0.3986 0.3986 0.3986
Total power area (standard deviation) 0.5376 0.4566 0.4709 0.4751
Driving power maximum (mean) 0.5505 0.4302 0.3215 0.4299
Elastic power maximum (mean) 1.4652 0.8141 0.8202 0.9662
Total power maximum (mean) 2.5949 0.9262 1.0533 1.2000
Driving power maximum (standard deviation) 0.8253 0.4268 0.3301 0.4371
Elastic power maximum (standard deviation) 1.6642 0.6431 0.6687 0.7715
Total power maximum (standard deviation) 3.8029 0.7323 0.9100 0.9800
  1. Driving power above threshold and the PEEP-inclusive elastic power above threshold are subcomponents of the total power exceeding threshold. Note that in contrast to their power maximum counterparts, the driving and elastic power (energy) areas do not vary as functions of the flow profile. Power areas are expressed in joules, and maximum power values are expressed in watts