Cardiothoracic & vascular anesthesia

Association Between Loop Diuretics and Mortality in Patients With Cardiac Surgery–Associated Acute Kidney Injury: A Retrospective Propensity Score–Weighted Analysis

Anesth AnalgPublished Retrospective cohort study

Authors' conclusion

LD use is associated with lower hospital and ICU mortality in CS-AKI patients in general.

Study context

Population
Patients with cardiac surgery–associated AKI (CS-AKI), Medical Information Mart for Intensive Care III
Participants
5,478 patients
Exposure
Postoperative loop diuretic use in ICU vs no use
  • LD usen = 4,150
  • No LD usen = 1,328reference
Outcome
In-hospital mortality and ICU mortality (time-to-event, multivariable Cox models)
Methodological detailspropensity score–weighted (inverse probability weighting), MIMIC-III database
  • Propensity score–weighted (inverse probability weighting)
  • MIMIC-III database

Main finding

As reported in the abstract

In-hospital mortality

P < 0.001

Adjusted HR (multivariable Cox), in-hospital mortality
0.428 (95% CI, 0.374-0.489)
Inverse probability weighting (IPW) HR, in-hospital mortality
0.434 (95% CI, 0.376-0.502)

Observational data: associations, not effects.

Further findings

ICU mortality (co-primary) · crude rates

P < 0.001

ICU mortality (co-primary) — Adjusted HR (multivariable Cox), ICU mortality
0.278 (95% CI, 0.238-0.327)
ICU mortality (co-primary) — IPW HR, ICU mortality
0.296 (95% CI, 0.251-0.349)

Association by fluid balance (subgroup)

Association may differ with fluid balance
  • P value for interaction < .001

Original publication

Association Between Loop Diuretics and Mortality in Patients With Cardiac Surgery–Associated Acute Kidney Injury: A Retrospective Propensity Score–Weighted Analysis. Anesth Analg. Published 27 November 2023. doi:10.1213/ane.0000000000006748

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.