Cardiac arrest & resuscitation

Potassium disorders at intensive care unit admission and functional outcomes after cardiac arrest

ResuscitationPublished Post hoc analysis of pooled data from four randomised clinical trials

Authors' conclusion

Hyperkalaemia was associated with unfavourable functional outcomes at 180 days, while hypokalaemia was not.

Study context

Population
Comatose patients admitted to intensive care unit (ICU) after return of spontaneous circulation (ROSC) following cardiac arrest (HYPERION, TTH48, COMACARE, Xe-HYPOTHECA trials)
Participants
1,133 patients · 4 RCTs
Comparison
Hyperkalaemia or hypokalaemia vs normokalaemia at ICU admission
  • Normokalaemian = 877reference
  • Hypokalaemian = 35
  • Hyperkalaemian = 221
Primary endpoint
Unfavourable functional outcome (cerebral performance category 3 to 5)
Follow-up
180 days
Methodological detailsmixed effects logistic regression
  • Mixed effects logistic regression

Primary result

As reported in the abstract

Unfavourable functional outcome
Each group vs normokalaemiaEstimate (95 % CI)P value
Hyperkalaemia
aOR 1.85(1.10–3.12)
P = 0.02
Hypokalaemia
OR 1.36(0.51–3.60)
P = 0.53

Further findings

OutcomeOR (95 % CI)P value
Unfavourable functional outcome, adjusted for modified cardiac arrest hospital prognosis score (subgroup, 833 patients)Hyperkalaemia vs Normokalaemia · not significant1.74 (0.91–3.34)P = 0.10
Unfavourable functional outcome, adjusted for modified cardiac arrest hospital prognosis score (subgroup, 833 patients)Hypokalaemia vs Normokalaemia · not significant1.48 (0.40–5.44)P = 0.55

%

OutcomeHypokalaemiaHyperkalaemia
Prevalence of potassium disorders at ICU admission3.119.5

Original publication

Potassium disorders at intensive care unit admission and functional outcomes after cardiac arrest. Resuscitation. Published 20 November 2024. doi:10.1016/j.resuscitation.2024.110439

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.