Potential Survival Benefit of Polymyxin B Hemoperfusion in Septic Shock Patients on Continuous Renal Replacement Therapy: A Propensity-Matched Analysis

Blood Purif. 2016;42(1):9-17. doi: 10.1159/000444474. Epub 2016 Feb 27.

Abstract

Background/aims: We assessed the survival benefit of polymyxin B hemoperfusion (PMX) in septic shock patients starting continuous renal replacement therapy (CRRT), who are known to have an increased rate of mortality.

Methods: Adult patients in the Japanese diagnosis procedure combination database satisfying the following criteria were enrolled: hospitalized in 2007-2012; diagnosed as having sepsis; required noradrenaline and/or dopamine; and started CRRT in intensive care unit. Propensity scores for receiving PMX were created from patient and hospital characteristics.

Results: Of 3,759 eligible patients, 1,068 received PMX. Propensity-score matching produced a matched cohort of 978 pairs. The 28-day mortality was 40.2% (393/978) in the PMX group and 46.8% (458/978) in the control group (p = 0.003). Logistic regression analysis revealed a significant association between the use of PMX and decreased 28-day mortality (adjusted OR 0.75; 95% CI 0.62-0.91).

Conclusion: This large retrospective study suggests that septic shock patients starting CRRT may benefit from PMX.

MeSH terms

  • Adult
  • Aged
  • Case-Control Studies
  • Hemoperfusion / methods
  • Hemoperfusion / mortality
  • Humans
  • Logistic Models
  • Middle Aged
  • Polymyxin B / therapeutic use*
  • Propensity Score
  • Renal Replacement Therapy / methods
  • Retrospective Studies
  • Shock, Septic / mortality*
  • Shock, Septic / therapy*
  • Survival Analysis

Substances

  • Polymyxin B