Αποτελέσματα Αναζήτησης
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.
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.
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.
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].
This condition creates excessively negative pressure in the pleural space as the chest wall moves outward during inspiration; during inspiration, the trapped lung resists deformation. Thus, for any given expansion of the chest wall and lung during inspiration, the pleural pressure is more negative.
18 Σεπ 2016 · Any theory for pleural pressure needs to explain certain crucial facts, including that the lung and chest walls exert an equal and opposite recoil pressure . It would need to explain the negative values for pleural pressure, and why apical pleural pressure is more negative than at the base.
The measurement of Ppl and the pattern of changes over time in patients with pleural disease may help to optimize diagnosis and guide the therapeutic approach. Pleural manometry is a general term referring to different methods of Ppl measurement used both in clinical practice and research studies.
