• Didier M Payen, Joelle Guilhot, Yoann Launey, Anne Claire Lukaszewicz, Mahmoud Kaaki, Benoit Veber, Julien Pottecher, Olivier Joannes-Boyau, Laurent Martin-Lefevre, Matthieu Jabaudon, Olivier Mimoz, Rémi Coudroy, Martine Ferrandière, Eric Kipnis, Carlos Vela, Stéphanie Chevallier, Jihad Mallat, René Robert, and ABDOMIX Group.
• Department of Anesthesia and Critical Care, SAMU, Lariboisière University Hospital, University Paris 7 Denis Diderot, Paris, France, dpayen1234@orange.fr.
• Intensive Care Med. 2015 Jun 1; 41 (6): 975-84.

PurposeTo test whether the polymyxin B hemoperfusion (PMX HP) fiber column reduces mortality and organ failure in peritonitis-induced septic shock (SS) from abdominal infections.MethodProspective, multicenter, randomized controlled trial in 18 French intensive care units from October 2010 to March 2013, enrolling 243 patients with SS within 12 h after emergency surgery for peritonitis related to organ perforation. The PMX HP group received conventional therapy plus two sessions of PMX HP. Primary outcome was mortality on day 28; secondary outcomes were mortality on day 90 and a reduction in the severity of organ failures based on Sequential Organ Failure Assessment (SOFA) scores.ResultsPrimary Outcomeday 28 mortality in the PMX HP group (n = 119) was 27.7 versus 19.5% in the conventional group (n = 113), p = 0.14 (OR 1.5872, 95% CI 0.8583-2.935). Secondary endpoints: mortality rate at day 90 was 33.6% in PMX-HP versus 24% in conventional groups, p = 0.10 (OR 1.6128, 95% CI 0.9067-2.8685); reduction in SOFA score from day 0 to day 7 was -5 (-11 to 6) in PMX-HP versus -5 (-11 to 9), p = 0.78. Comparable results were observed in the predefined subgroups (presence of comorbidity; adequacy of surgery, <2 sessions of hemoperfusion) and for SOFA reduction from day 0 to day 3.ConclusionThis multicenter randomized controlled study demonstrated a non-significant increase in mortality and no improvement in organ failure with PMX HP treatment compared to conventional treatment of peritonitis-induced SS.

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