Respiratory failure & ventilation

Positive end-expiratory pressure (PEEP) titration and variability in renal venous congestion metrics in mechanically ventilated patients

J Crit CarePublished Non-randomised crossover study

Primary result · VII, IRVF patterns and RRI (PEEP 10 vs 5 cmH₂O)Result — go to the resultDifference 0.08 95% CI 0.01–0.14

Authors' conclusion

In this exploratory study, increasing PEEP from 5 to 10 cmH₂O was associated with a higher VII, while IRVF patterns and RRI showed minimal change.

Study context

Population
Mechanically ventilated adults in the ICU of a tertiary hospital immediately prior to ventilator liberationanalysed
Participants
35 participants
Comparison
PEEP 10 vs 5 cmH₂O
Methodological detailssingle-centre, exploratory
  • Single-centre
  • Exploratory

Primary result

VII, IRVF patterns and RRI (PEEP 10 vs 5 cmH₂O)

Difference

0.08

95% CI 0.01–0.14

PEEP 10 vs PEEP 5
difference 0.08 (95% CI 0.01–0.14)

As reported in the abstract

Intrarenal venous flow (IRVF) patterns stable across PEEP levels; patients transitioning to a different IRVF pattern
3 (8.6%)
Renal resistive index (RRI) did not change significantly with higher PEEP
0.005 (difference; 95% CI, −0.012 to 0.022)

Original publication

PEEP titration and variability in renal venous congestion metrics in mechanically ventilated patients. J Crit Care. Published 8 April 2026. doi:10.1016/j.jcrc.2026.155577

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.