Cardiac arrest & resuscitation

Hypothermia versus normothermia after out-of-hospital cardiac arrest; the effect on post-intervention serum concentrations of sedatives and analgesics and time to awakening

ResuscitationPublished Secondary analysis of the TTM2 randomised trial

Authors' conclusion

This study of OHCA patients treated at normothermia versus hypothermia found no significant differences in dosing or concentration of sedatives or analgesic drugs in blood samples drawn at the end of the TTM intervention, or at end of protocolized fever prevention, nor the time to awakening.

Study context

Population
Out-of-hospital cardiac arrest (OHCA) patients alive at 40 hours who received the targeted temperature management (TTM) intervention per protocol, under mandatory deep sedation
Participants
71 participants
Comparison
Hypothermia vs normothermia after OHCA
  • Hypothermian = 33
  • Normothermian = 38reference
Primary endpoint
Cumulative doses and serum concentrations of sedatives and analgesics, and time to awakening
Follow-up
End of TTM and end of protocolized fever prevention (72 hours)
Methodological details3 centres in Sweden
  • 3 centres in Sweden

Primary result

As reported in the abstract

Cumulative doses and concentrations of sedatives/analgesics · any timepoint
  • No differences between groups in cumulative doses or concentrations of sedatives/analgesics at any timepoint

Further findings

Time until awakening

P = 0.09

Original publication

Hypothermia versus normothermia after out-of-hospital cardiac arrest; the effect on post-intervention serum concentrations of sedatives and analgesics and time to awakening. Resuscitation. Published 11 May 2023. doi:10.1016/j.resuscitation.2023.109831

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