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Review
[Does intraoperative lung-protective ventilation reduce postoperative pulmonary complications?]
- T Kiss, T Bluth, and M Gama de Abreu.
- Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, Universitätsklinikum Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland.
- Anaesthesist. 2016 Aug 1; 65 (8): 573-9.
BackgroundRecent studies show that intraoperative protective ventilation is able to reduce postoperative pulmonary complications (PPC).ObjectivesThis article provides an overview of the definition and ways to predict PPC. We present different factors that lead to ventilator-induced lung injury and explain the concepts of stress and strain as well as driving pressure. Different strategies of mechanical ventilation to avoid PPC are discussed in light of clinical evidence.Materials And MethodsThe Medline database was used to selectively search for randomized controlled trials dealing with intraoperative mechanical ventilation and outcomes.ResultsLow tidal volumes (VT) and high levels of positive end-expiratory pressure (PEEP), combined with recruitment maneuvers, are able to prevent PPC. Non-obese patients undergoing open abdominal surgery show better lung function with the use of higher PEEP levels and recruitment maneuvers, however such strategy can lead to hemodynamic impairment, while not reducing the incidence of PPC, hospital length of stay and mortality. An increase in the level of PEEP that results in an increase in driving pressure is associated with a greater risk of PPC.ConclusionsThe use of intraoperative VT ranging from 6 to 8 ml/kg based on ideal body weight is strongly recommended. Currently, a recommendation regarding the level of PEEP during surgery is not possible. However, a PEEP increase that leads to a rise in driving pressure should be avoided.
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