Hemodynamics, fluids & transfusion

Nitric oxide biomarkers and circulatory failure in critical illness: A cohort study

J Crit CarePublished Prospective cohort study

Authors' conclusion

Increased ADMA and arginine at admission are associated with decreased norepinephrine treatment on the first three days of ICU admission. Increased homoarginine concentrations are associated with increasing plasma lactate.

Study context

Population
Adult ICU patients with nitric oxide (NO)-biomarkers at admission
Participants
527 patients
Exposure
NO-biomarkers (asymmetrical dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), arginine, homoarginine) at admission vs norepinephrine treatment and plasma lactate
Outcome
Norepinephrine treatment and highest daily plasma lactate
Follow-up
ICU days 1-3

Main finding

As reported in the abstract

Norepinephrine treatment · ICU day 1
Odds ratio (95 % CI)P value
ADMA (pr 1 μmol/L)
0.36(0.17–0.78)
P = 0.009
Arginine (pr 10 μmol/L)
0.85(0.79–0.92)
P < 0.001

Observational data: associations, not effects.

Further findings

OutcomeIncrease in plasma lactate (%) (95 % CI)
Plasma lactate per 1 μmol/L increase in homoarginineHomoarginine (per 1 μmol/L) · ICU days 1-26 (−2 % to 15 %)
Plasma lactate per 1 μmol/L increase in homoarginineHomoarginine (per 1 μmol/L) · ICU days 2-34 (−4 % to 13 %)

Plasma lactate per 1 μmol/L increase in homoarginine

SDMA not associated with plasma lactate

Original publication

Nitric oxide biomarkers and circulatory failure in critical illness: A cohort study. J Crit Care. Published 16 April 2025. doi:10.1016/j.jcrc.2025.155083

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