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Intragastric pH(ipH) and PaCO2 Monitoring in Sepsis

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Sepsis and Organ Dysfunction

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Abstract

For many years, haemodynamic management of patients with septic shock had consisted in restoring and maintaining global parameters of oxygenation such as oxygen delivery(DO2), consumption(VO2), and extraction(O2ER). However, some patients may still have splanchnic ischaemia [1] and global parameters do not provide reliable information on the adequacy of splanchnic oxygenation. Two factors could account for the development of splanchnic ischaemia. First, in the presence of reduced blood flow, the splanchnic region may be at higher risk of ischaemia than the other parts of the body. When cardiac output decreases, adaptative mechanisms favour the blood flow redistribution to the brain and heart, so that the splanchnic blood flow may be the first to decrease and the last to recover during resuscitation. Furthermore, the critical DO2 is higher in the gut than for the whole body so that this area may be more sensitive to reductions in blood flow. Second, the gut mucosa is particularly sensitive to alterations in regional blood flow because of a decrease in PO2 due to the countercurrent mechanism and a decrease in hematocrit due to plasma skimming. Gut ischaemia may have clinical implications as it has been implicated in the pathogenesis of multiple organ failure [2, 3]. Hence, it has been recently proposed that improvement of regional haemodynamics, or at least avoidance of splanchnic ischaemia, should be included in our resuscitation goals.

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Authors
  1. D. De Backer
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  2. J. Creteur
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  3. E. Silva
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Editor information

Editors and Affiliations

  1. Department of Surgery, Saint Louis University, Health Sciences Center, St. Louis, USA

    A. E. Baue M.D.

  2. Department of Anaesthesia, Intensive Care and Pain Therapy, University of Trieste, Cattinara Hospital, Trieste, Italy

    G. Berlot M.D.  & A. Gullo M.D.  & 

  3. Department of Intensive Care, Erasme University Hospital, Free University of Brussels, Belgium

    J.-L. Vincent M.D.

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© 1999 Springer-Verlag Italia, Milano

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De Backer, D., Creteur, J., Silva, E. (1999). Intragastric pH(ipH) and PaCO2 Monitoring in Sepsis. In: Baue, A.E., Berlot, G., Gullo, A., Vincent, JL. (eds) Sepsis and Organ Dysfunction. Springer, Milano. https://doi.org/10.1007/978-88-470-2248-5_19

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  • DOI: https://doi.org/10.1007/978-88-470-2248-5_19

  • Publisher Name: Springer, Milano

  • Print ISBN: 978-88-470-0052-0

  • Online ISBN: 978-88-470-2248-5

  • eBook Packages: Springer Book Archive

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