A New Ultrasound Method for Estimating Dynamic Intrinsic Positive Airway Pressure: A Prospective Clinical Trial

[...]the ultrasound measure of TLAT showed a high interoperator concordance (bias =20.5; upper level of agreement = 20 ms; lower level of agreement =221 ms; interclass correlation coefficient = 0.98; 95% CI, 0.97-0.99). [...]there is another important aspect that needs to be underlined. [...]in this preliminary physiological study, we have shown that in patients with COPD who are recovering from an acute exacerbation, the recording of PEEPi using ultrasound and P0.1 measurements is both feasible and reliable, and yields values comparable to those obtained by the more invasive gold standard technique. Murciano D, Boczkowski J, Lecocguic Y, Emili JM, Pariente R, Aubier M. Tracheal occlusion pressure: a simple index to monitor respiratory muscle fatigue during acute respiratory failure in patients with chronic obstructive pulmonary disease.