| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
|---|---|---|---|---|---|---|
| 1 | Sirius Huang | -- | 1141 | 2022-10-28 01:38:17 |
Chest drains are used to preserve respiratory function and haemodynamic stability. One can also utilize a flutter valve, but these do not enable application of negative pressure. The generation of an active sub-atmospheric pressure or vacuum builds the basis of chest drain management. A vacuum is defined as “space with zero pressure” generating a difference in pressure between the pleural space and the atmosphere creates sub-atmospheric pressure in the pleural space, which is used to generate a vacuum in the chest drains.