Perioperative medicine & outcomes
Electrical Impedance Tomography–based Ventilation Patterns in Patients after Major Surgery
Authors' conclusion
Inhomogeneous ventilation patterns revealed by EIT on ICU admission were associated with PPCs, delayed weaning from mechanical ventilation and oxygen use, and a longer ICU stay.
Study context
- Population
- Adult postoperative patients at high risk for postoperative pulmonary complications (PPCs), receiving mechanical ventilation on ICU admission
- Participants
- 128 patients
- Exposure
- Electrical impedance tomography (EIT) ventilation phenotypes 1 and 3 vs phenotype 2
- Phenotype 1n = 41
- Phenotype 2n = 52reference
- Phenotype 3n = 35
- Outcome
- PPC score
Methodological detailsprospective enrolment, Enrolled November 18, 2021 – July 18, 2022
- Prospective enrolment
- Enrolled November 18, 2021 – July 18, 2022
Main finding
As reported in the abstract
- Median PPC score higher in phenotype 1 and phenotype 3 than in phenotype 2
Observational data: associations, not effects.
Secondary outcomes
Time to wean from mechanical ventilation
- Median time longer in phenotype 1 vs phenotype 2
ICU LOS
- Median duration longer in phenotype 1 vs phenotype 2
Time to wean from oxygen use
- Median time longer in phenotype 1 and phenotype 3 than in phenotype 2
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Electrical Impedance Tomography–based Ventilation Patterns in Patients after Major Surgery. Am J Respir Crit Care Med. Published 1 June 2024. doi:10.
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