Lung aeration estimated by chest electrical impedance tomography and lung ultrasound during extubation
Authors' conclusion
Before extubation, a loss of lung aeration was observed in patients who developed extubation failure afterwards. After extubation, this loss of lung aeration persisted and was associated with regional lung ventilation heterogeneity.
Study context
- Population
- Patients at risk of extubation failure after a successful SBT
- Participants
- 40 patients
- Exposure
- Extubation failure vs successful extubation
- Extubation failuren = 12
- Outcome
- Lung aeration before extubation (H0)
- Follow-up
- Before extubation
Main finding
As reported in the abstract
Lung ultrasound score (LUS), extubation failure vs successful extubation
19 vs 10
p = 0.003
Surface available for ventilation, extubation failure vs successful extubation
352 vs 406 pixels
p = 0.042
Observational data: associations, not effects.
Further findings
EIT indices and LUS after extubation
- GI index and LUS higher, surface available for ventilation lower in extubation failure
- Regional ventilation delay (RVD) and center of ventilation (CoV) not different between groups
Original publication
Lung aeration estimated by chest electrical impedance tomography and lung ultrasound during extubation. Ann Intensive Care. Published 26 September 2023. doi:10.
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