The phrase "aerated area" is correct and usable in written English.
It can be used in contexts related to environmental science, gardening, or any situation where air circulation in a specific space is relevant.
Example: "The aerated area of the garden allows for better root growth and healthier plants."
Alternatives: "ventilated space" or "oxygenated zone".
Conventional positive-pressure ventilation directs tidal volume (VT) preferentially to ventral aerated areas.
However, i n heterogeneously inflated lungs, e.g., ARDS, at every breath the local alveolar distending forces will be amplified up to 4.5 times in the interphase between collapsed and aerated areas [2].
First, Rouby and colleagues state that PEEP may produce end-expiratory hyperinflation of aerated areas.
Collapsed or fluid-filled lung areas predominate in dependent regions and normally aerated areas in nondependent, the net result being a loss of lung air volume (4, 5).
Also interestingly, at ZEEP Ers increased to values similar to those observed at a PEEP of 12 cmH2O and the CT images showed an increase in poorly aerated areas (reaching 15% of the region of interest); non-aerated areas remained close to zero.
In healthy piglets, a twofold rise in Ers was accompanied by a significant increment in hyperinflated areas and a concomitant reduction in normally aerated areas, suggesting direct correspondence between radiological evidence of hyperinflation and overstretching of the alveolar septum.
The higher the intra-alveolar or intra-bronchial pressure, the greater the danger of air passing from the aerated areas of the lungs to the vascular system is [ 15].
Normally aerated areas remained in a plateau ranging from 61% to 80% at end-expiration and from 66%to81%1% at end-inspiration, and hyperinflated areas monotonically decreased (ranges decrease from 2 16%to1 8%8% at end-expiration, and from 3 19% to 2 10% at end-inspiration).
The reduction of PEEP from 16 cmH2O to ZEEP resulted in a decrease in the hyperinflated areas (ranges decreased from 24 62% to 1 7% at end-expiratory pause and from 44 73% to 4 17% at end-inspiratory pause) while an increase in normally aerated areas was observed (from 30 66% to 72 83% at end-expiratory pause and from 19 48% to 73 77% at end-inspiratory pause).
Bearing this in mind, the increase in Ers in animals with ALI (from 54.5 81.5 cmH2O/l at PEEPErs to 91 141.5 cmH2O/l at a PEEP of 26 cmayO) may not solely be attributed to the increase in hyperinflated areas; it is possible that mechanical stress in alveolar septa at the interface of poorly aerated and non-aerated areas with normally aerated alveoli also played a role [ 4, 9, 24].
