PurposeTo evaluate the efficacy and safety of Polymyxin B-immobilized hemoperfusion (PMX-HP) against sepsis or septic shock. MethodsWe searched databases (PubMed, EMBASE and Cochrane Library) to identify eligible randomized controlled trials (RCTs). The primary outcomes we included in this review were mortality at the longest follow-up available and serious adverse events associated with treatments. We used …