Annals of Intensive Care (Aug 2022)

Effects of mean arterial pressure target on mottling and arterial lactate normalization in patients with septic shock: a post hoc analysis of the SEPSISPAM randomized trial

  • Nicolas Fage,
  • Julien Demiselle,
  • Valérie Seegers,
  • Hamid Merdji,
  • Fabien Grelon,
  • Bruno Mégarbane,
  • Nadia Anguel,
  • Jean-Paul Mira,
  • Pierre-François Dequin,
  • Soizic Gergaud,
  • Nicolas Weiss,
  • François Legay,
  • Yves Le Tulzo,
  • Marie Conrad,
  • Remi Coudroy,
  • Frédéric Gonzalez,
  • Christophe Guitton,
  • Fabienne Tamion,
  • Jean-Marie Tonnelier,
  • Jean Pierre Bedos,
  • Thierry Van Der Linden,
  • Antoine Vieillard-Baron,
  • Eric Mariotte,
  • Gaël Pradel,
  • Olivier Lesieur,
  • Jean-Damien Ricard,
  • Fabien Hervé,
  • Damien Du Cheyron,
  • Claude Guerin,
  • Alain Mercat,
  • Jean-Louis Teboul,
  • Peter Radermacher,
  • Pierre Asfar

DOI
https://doi.org/10.1186/s13613-022-01053-1
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

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Abstract Background In patients with septic shock, the impact of the mean arterial pressure (MAP) target on the course of mottling remains uncertain. In this post hoc analysis of the SEPSISPAM trial, we investigated whether a low-MAP (65 to 70 mmHg) or a high-MAP target (80 to 85 mmHg) would affect the course of mottling and arterial lactate in patients with septic shock. Methods The presence of mottling was assessed every 2 h from 2 h after inclusion to catecholamine weaning. We compared mottling and lactate time course between the two MAP target groups. We evaluated the patient’s outcome according to the presence or absence of mottling. Results We included 747 patients, 374 were assigned to the low-MAP group and 373 to the high-MAP group. There was no difference in mottling and lactate evolution during the first 24 h between the two MAP groups. After adjustment for MAP and confounding factors, the presence of mottling ≥ 6 h during the first 24 h was associated with a significantly higher risk of death at day 28 and 90. Patients without mottling or with mottling < 6 h and lactate ≥ 2 mmol/L have a higher probability of survival than those with mottling ≥ 6 h and lactate < 2 mmol/L. Conclusion Compared with low MAP target, higher MAP target did not alter mottling and lactate course. Mottling lasting for more than 6 h was associated with higher mortality. Compared to arterial lactate, mottling duration appears to be a better marker of mortality.

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