• Biology of the neonate · Jan 2003

    Application of the open-lung concept during positive-pressure ventilation reduces pulmonary inflammation in newborn piglets.

    • Anton H van Kaam, Willem A Dik, Jack J Haitsma, Anne De Jaegere, Birgitta A Naber, Wim M van Aalderen, Joke H Kok, and Burkhard Lachmann.
    • Department of Neonatology, Emma Children's Hospital AMC, University of Amsterdam, The Netherlands. a.h.vankaam@amc.uva.nl
    • Biol. Neonate. 2003 Jan 1;83(4):273-80.

    AbstractIt has been shown that application of the open-lung concept (OLC) during high-frequency oscillatory ventilation (HFOV) attenuates pulmonary inflammation. We hypothesized that this attenuation could also be achieved by applying the OLC during positive-pressure ventilation (PPV). After repeated whole-lung lavage, newborn piglets were assigned to one of three ventilation groups: (1) PPV(OLC); (2) HFOV(OLC), or (3) conventional PPV (PPV(CON)). After a ventilation period of 5 h, analysis of bronchoalveolar lavage fluid showed a reduced influx of polymorphonuclear neutrophils, interleukin 8, and thrombin activity in both OLC groups as compared with the PPV(CON) group. There were no differences in tumor necrosis factor alpha levels. We conclude that application of the OLC during PPV reduces pulmonary inflammation as compared with conventional PPV and that the magnitude of this reduction is comparable to that of HFOV.Copyright 2003 S. Karger AG, Basel

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