• Journal of critical care · Dec 2018

    Positive end-expiratory pressure titrated according to respiratory system mechanics or to ARDSNetwork table did not guarantee positive end-expiratory transpulmonary pressure in acute respiratory distress syndrome.

    • Joerg Krebs, Paolo Pelosi, Rocco Patricia R M PRM Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, , Michael Hagmann, and Thomas Luecke.
    • Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68165 Mannheim, Germany. Electronic address: Joerg.Krebs@umm.de.
    • J Crit Care. 2018 Dec 1; 48: 433-442.

    PurposePulmonary recruitment and positive end-expiratory pressure (PEEP) titrated according to minimal static elastance of the respiratory system (PEEPEstat,RS) compared to PEEP set according to the ARDSNetwork table (PEEPARDSNetwork) as a strategy to prevent ventilator-associated lung injury (VALI) in patients with acute respiratory distress syndrome (ARDS) increases mortality. Alternatively, avoiding negative end-expiratory transpulmonary pressure has been discussed as superior PEEP titration strategy. Therefore, we tested whether PEEPEstat,RS or PEEPARDSNetwork prevent negative end-expiratory transpulmonary pressure in ARDS patients.Material And MethodsThirteen patients with moderate to severe ARDS were studied at PEEPARDSNetwork versus PEEPEstat,RS. Patients were then grouped post hoc according to the end-expiratory transpulmonary pressure (positive or negative).Results7 out of 13 patients showed negative end-expiratory transpulmonary pressures (Ptp-) with both strategies (PEEPARDSNetwork: - 5.4 ± 3.5 vs. 2.2 ± 3.7 cm H2O, p = .005; PEEPEstat,RS: - 3.6 ± 1.5 vs. 3.5 ± 3.3 cm H2O, p < .001). Ptp- was associated with higher intra-abdominal pressure and lower end-expiratory lung volume with both PEEP strategies.ConclusionsIn patients with moderate-to-severe ARDS, PEEP titrated according to the minimal static elastance of the respiratory system or according to the ARDSNetwork table did not prevent negative end-expiratory transpulmonary pressure.Copyright © 2018 Elsevier Inc. All rights reserved.

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