Electrical Impedance Tomography as a monitoring tool during weaning from mechanical ventilation: an observational study during the spontaneous breathing trial

Autor: Jantine J. Wisse, Tom G. Goos, Annemijn H. Jonkman, Peter Somhorst, Irwin K. M. Reiss, Henrik Endeman, Diederik Gommers
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Respiratory Research, Vol 25, Iss 1, Pp 1-10 (2024)
Druh dokumentu: article
ISSN: 1465-993X
DOI: 10.1186/s12931-024-02801-6
Popis: Abstract Background Prolonged weaning from mechanical ventilation is associated with poor clinical outcome. Therefore, choosing the right moment for weaning and extubation is essential. Electrical Impedance Tomography (EIT) is a promising innovative lung monitoring technique, but its role in supporting weaning decisions is yet uncertain. We aimed to evaluate physiological trends during a T-piece spontaneous breathing trail (SBT) as measured with EIT and the relation between EIT parameters and SBT success or failure. Methods This is an observational study in which twenty-four adult patients receiving mechanical ventilation performed an SBT. EIT monitoring was performed around the SBT. Multiple EIT parameters including the end-expiratory lung impedance (EELI), delta Tidal Impedance (ΔZ), Global Inhomogeneity index (GI), Rapid Shallow Breathing Index (RSBIEIT), Respiratory Rate (RREIT) and Minute Ventilation (MVEIT) were computed on a breath-by-breath basis from stable tidal breathing periods. Results EELI values dropped after the start of the SBT (p
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