title: Antipyretic therapy in critically ill patients with sepsis: an interaction with body temperature.
abstract: OBJECTIVE
  The effect of antipyretic therapy on mortality in patients with sepsis remains undetermined. The present study aimed to investigate the role of antipyretic therapy in ICU patients with sepsis by using a large clinical database.
  
  
  METHODS
  The multiparameter intelligent monitoring in intensive care II (MIMIC- II) database was employed for the study. Adult patients with sepsis were included for analysis. Antipyretic therapy included antipyretic medication and external cooling. Multivariable model with interaction terms were employed to explore the association of antipyretic therapy and mortality risk.
  
  
  RESULTS
  A total of 15,268 patients fulfilled inclusion criteria and were included in the study. In multivariable model by treating temperature as a continuous variable, there was significant interaction between antipyretic therapy and the maximum temperature (Tmax). While antipyretic therapy had no significant effect on mortality in low temperature quintiles, antipyretic therapy was associated with increased risk of death in the quintile with body temperature >39°C (OR: 1.29, 95% CI: 1.04-1.61).
  
  
  CONCLUSIONS
  Our study shows that there is no beneficial effect on reducing mortality risk with the use of antipyretic therapy in ICU patients with sepsis. External cooling may even be harmful in patients with sepsis.
authors.affiliation: Department of Critical Care Medicine, Jinhua Municipal Central Hospital, Jinhua Hospital of Zhejiang University, Zhejiang, P. R. China.
authors.forename: Zhongheng
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Critical Care Medicine, Jinhua Municipal Central Hospital, Jinhua Hospital of Zhejiang University, Zhejiang, P. R. China.
authors.forename: Lin
authors.initials: L
authors.lastname: Chen
authors.affiliation: Department of Critical Care Medicine, Jinhua Municipal Central Hospital, Jinhua Hospital of Zhejiang University, Zhejiang, P. R. China.
authors.forename: Hongying
authors.initials: H
authors.lastname: Ni
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D058633:Antipyretics / Q000009:adverse effects* / Q000627:therapeutic use*; D001831:Body Temperature / Q000187:drug effects* / Q000502:physiology; D003422:Critical Care; D016638:Critical Illness; D017679:Cryotherapy / Q000009:adverse effects; D016208:Databases, Factual; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011336:Probability; D012307:Risk Factors; D018805:Sepsis / Q000188:drug therapy* / Q000401:mortality / Q000503:physiopathology*
chemical_list: D058633:Antipyretics
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