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21 Ιουν 2001 · The presence of an initial segment with a low compliance on the static pressure–volume (PV) curve in patients with acute respiratory distress syndrome (ARDS) indicates that some lung compartments do not initially receive insufflated gas.
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The presence of an initial segment with a low compliance on...
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The patients were studied within the first day from the...
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Respiratory system compliance is the tidal volume divided by the driving pressure. Bottom panel: the effect of compliance on driving pressure. On this pressure–volume graph, compared with curve B, curve A illustrates a patient with increased respiratory system compliance and as a result at a given tidal volume there is reduced driving pressure.
static pressure–volume (PV) curve in patients with acute respira- tory distress syndrome (ARDS) indicates that some lung compart- ments do not initially receive insufflated gas.
Where mechanical ventilation is required, the use of low tidal volumes (<6 ml/kg ideal body weight) and airway pressures (plateau pressure <30 cmH 2 O) was recommended. For patients with moderate/severe ARDS (PF ratio<20 kPa), prone positioning was recommended for at least 12 hours per day.
13 Ιουν 2019 · Acute respiratory distress syndrome (ARDS) is an inflammatory process in the lungs that induces non-hydrostatic protein-rich pulmonary oedema. The immediate consequences are profound hypoxemia, decreased lung compliance, and increased intrapulmonary shunt and dead space.
Equation 1 fitted equally well inflation and deflation P-V curves from normal, ARDS, and pneumoconstricted lungs (Figs.1-3) with mean goodness-of-fit coefficient (R 2) of 0.997 ± 0.02 (SE). Review of the fitted parameters revealed the following results.
The reduction in linear compliance measured by the PV curve is considered a hallmark of ARDS and is usually explained chiefly by the loss of aerated lung volume. Lung areas with a normal appearance on plain radiograph scans, however, show increases in lung tissue despite preserved aeration on computed tomography images, indicating that lung ...
