Criteria for Sepsis: Systemic Inflammatory Response Syndrome (SIRS) and Quick Sepsis-Related Organ Dysfunction Assessment (QSOFA)

Purpose of Review Various definitions and scoring systems for sepsis were available but none of them was perfect due to the incomplete knowledge of sepsis syndrome pathobiology. Sepsis is a collection of diseases described mainly by systemic host response to infection. An international consensus first defined sepsis in 1991 and was later updated in 2001. Definitions of sepsis, severe sepsis, and septic shock remained the same for two decades. The systemic inflammatory response syndrome (SIRS) criteria were used widely in hospitals to identify sepsis. The third international consensus definitions for sepsis and septic shock (sepsis-3) recently revisited the definition. Sepsis and septic shock definitions were revised, while severe sepsis was omitted and considered to be redundant.