Hemodynamics, fluids & transfusion

High vasopressor doses are associated with decreased tissue oxygenation in critically ill patients: a secondary analysis of a prospective cohort

Crit CarePublished Secondary analysis of the HySpec-ICU prospective cohort study

Authors' conclusion

High vasopressor requirements are associated with impaired microcirculatory oxygenation of the hand regardless of systemic blood pressure.

Study context

Population
Surgical ICU patients; Hyperspectral imaging (HSI) of the hand on the day of admission
Participants
502 patients
Comparison
Vasopressor load and tissue oxygenation by hyperspectral imaging
Primary endpoint
Association between NEE and StO₂
Follow-up
Day of admission

Primary result

As reported in the abstract

StO₂ vs NEE (multivariable linear regression)
Higher Norepinephrine Equivalent (NEE) independently associated with lower StO₂ (B)
- 0.0931
Standardised β
−0.193
P
p = 0.001

Further findings

Highest NEE quartile (> 0.28) · 30 days

30-day mortality
41.8%
Lowest StO₂

Mediation of vasopressor load and arterial lactate

StO₂ partially mediated the relationship

StO₂ change after shock reversal (NEE ≤ 0.05, lactate < 2mmol/l, MAP ≥ 65mmHg for ≥24 h)

StO₂ improvement
+ 5.8%
P
P < 0.001

Original publication

High vasopressor doses are associated with decreased tissue oxygenation in critically ill patients: a secondary analysis of a prospective cohort. Crit Care. Published 29 May 2026. doi:10.1186/s13054-026-06110-w

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