Table 2 Mode comparisons of intracycle total power areas (A, joules) and maximum intracycle power levels (M, watts) that are inscribed above a pressure threshold of 20 cmH2O for two severities of ARDS
From: Intracycle power and ventilation mode as potential contributors to ventilator-induced lung injury
ARDS type | Intracycle power descriptor | Constant pressure | Constant flow | Decelerating flow | Sinusoidal flow |
|---|---|---|---|---|---|
Severe | Area (A) | 0.8686 | 0.7748 | 0.7947 | 0.8080 |
Maximal power (M) | 5.8591 | 1.7265 | 2.2111 | 2.2833 | |
MD | 1.0191 | 0.8571 | 0.6598 | 0.8745 | |
ME | 3.2380 | 1.5429 | 1.5935 | 1.8625 | |
Mild | Area (A) | 0.3513 | 0.3547 | 0.3594 | 0.3773 |
Maximal power (M) | 1.2739 | 1.1909 | 1.5145 | 1.7969 | |
MD | 0.2060 | 0.3214 | 0.2474 | 0.3279 | |
ME | 1.0259 | 1.0072 | 1.1714 | 1.3527 |