Article ; Online: Mechanical Power Differs Between Pressure-Controlled Ventilation and Different Volume-Controlled Ventilation Modes.
Critical care explorations
2022 Volume 4, Issue 8, Page(s) e0741
Abstract: Objectives: Mechanical power (MP) is a way of estimating the energy delivered by the ventilator to the patient. For both volume-controlled ventilation (VCV) and pressure-controlled ventilation (PCV) methods have been described to calculate the MP. The ... ...
| Abstract | Objectives: Mechanical power (MP) is a way of estimating the energy delivered by the ventilator to the patient. For both volume-controlled ventilation (VCV) and pressure-controlled ventilation (PCV) methods have been described to calculate the MP. The pressure-volume (PV) loop, from which the MP is calculated, is different for VCV compared with PCV. We aimed to compare the MP of VCV with zero pause time (VCV-0), VCV with 10% pause time (VCV-10), and PCV within patients in different patient categories based on severity of lung injury. Design: In a proof-of-concept study, we enrolled 46 mechanically ventilated patients without spontaneous breathing efforts. Baseline measurements were done in pressure-controlled mode. Subsequently, measurements were done in VCV-0 and VCV-10. Tidal volume and all other settings were kept the same. Setting: ICU, single university medical center. Patients: Fifty-eight cases in 46 patients on controlled ventilation modes. Interventions: Comparison between the MP of PCV, VCV-0, and VCV-10. Measurement and main results: The mean MP of VCV-0, VCV-10, and PCV was 19.30, 21.80, and 20.87 J/min, respectively ( Conclusions: In patients ventilated in a controlled mode, VCV without pause time had the lowest MP followed by PCV. VCV with 10% pause time had the highest MP. |
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| Language | English |
| Publishing date | 2022-08-15 |
| Publishing country | United States |
| Document type | Journal Article |
| ISSN | 2639-8028 |
| ISSN (online) | 2639-8028 |
| DOI | 10.1097/CCE.0000000000000741 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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