Postoperative Hypotension After Cardiac Surgery Is Associated With Acute Kidney Injury

J Cardiothorac Vasc AnesthPublished Retrospective observational cohort study

Authors' conclusion

This study demonstrated that hypotension in the first 12 hours following cardiac surgery is common and prolonged hypotensive events are associated with developing AKI.

Study context

Population
Adults undergoing elective cardiac surgery with CPB, single tertiary teaching hospital, London, UK, May–November 2021
Participants
100 adults
Exposure
Acute kidney injury (AKI) vs no AKI after cardiac surgery
  • AKIn = 16
Outcome
Postoperative hypotension and AKI
Follow-up
First 12 hours after surgery
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

P = 0.029

Patients experiencing hypotension
91%
Average number of hypotensive events per patient
9
Average event duration (min)
5
Patients developing at least stage 1 AKI
16 (16%)

Observational data: associations, not effects.

Further findings

Intensive care unit (ICU) and hospital LOS

Longer ICU and hospital stays in those with AKI

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Postoperative Hypotension After Cardiac Surgery Is Associated With Acute Kidney Injury. J Cardiothorac Vasc Anesth. Published 20 April 2024. doi:10.1053/j.jvca.2024.04.024

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