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Pleural pressure, or Ppl, is the pressure surrounding the lung, within the pleural space. During quiet breathing, the pleural pressure is negative; that is, it is below atmospheric pressure. The pleura is a thin membrane which invests the lungs and lines the walls of the thoracic cavity.
9 Ιαν 2023 · The direct measurement of pleural pressures during thoracentesis is known as pleural manometry. The indications, technique, and interpretation of pleural pressures during pleural fluid manometry will be reviewed here.
29 Ιουλ 2021 · A unique feature of the pleural cavity is the negative, sub-atmospheric, pressure within this space, ranging between −3 and −5 cmH 2 O at functional residual capacity (FRC) and −6 to −10 cmH 2 O during the inspiratory phase of quiet breathing [1•, 2].
3 Σεπ 2017 · Subatmospheric pleural pressure (Ppl), which is approximately −3 to −5 cmH2O at functional residual capacity (FRC) makes pleura a unique organ in the human body. The negative Ppl is critical for maintaining the lungs in a properly inflated state and for proper blood circulation within the thorax.
1 Μαΐ 2020 · Pleural manometry (PM) is a novel tool that allows direct measurement of the pressure in the pleural space in the presence of either a pleural effusion or a pneumothorax. Originally it was...
2 Σεπ 2021 · Pes closely reflects absolute values of pleural pressure in the dependent lung region and accurately tracks changes in pleural pressure due to ventilation. Pes is useful to assess transpulmonary pressure and the risk of ventilator-induced lung injury.
Excessively negative pleural pressure compared to the normal state is present during both inhalation and exhalation, and shifts the balance of Starling forces that are responsible for the production of pleural fluid such that more fluid moves into the pleural space.
