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Understanding Electronic AKI Alerts: Characterization by Definitional Rules.

Jennifer Holmes1, Gethin Roberts2, Soma Meran3

  • 1Welsh Renal Clinical Network, Cwm Taf University Health Board, Caerphilly, UK.

Kidney International Reports
|November 17, 2017
PubMed
Summary
This summary is machine-generated.

Automated electronic alerts for acute kidney injury (AKI) were evaluated using three distinct creatinine-based rules. Rule 3, utilizing a longer baseline, identified the most community-acquired AKI cases, while Rule 2 showed higher mortality.

Keywords:
acute kidney injuryelectronic alertsoutcome

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Area of Science:

  • Nephrology
  • Biomedical Informatics
  • Clinical Diagnostics

Background:

  • Automated electronic alerts for acute kidney injury (AKI) are crucial for timely intervention.
  • Current AKI alerts primarily rely on comparing serum creatinine levels with historical patient data.

Purpose of the Study:

  • To evaluate the clinical significance of AKI definitions based on three different creatinine-based rules.
  • To assess AKI detection with creatinine values within the normal range.

Main Methods:

  • Retrospective analysis of 47,090 AKI episodes between November 2013 and April 2016.
  • Comparison of three AKI detection rules based on creatinine change over different time intervals (48 hours, 7 days, 8-365 days).
  • Analysis of AKI origin (hospital- vs. community-acquired), severity, mortality, and renal function recovery.

Main Results:

  • Rule 3 (63.1%) was the most common AKI detection method, predominantly identifying community-acquired AKI.
  • Rule 2 (27.3%) was associated with hospital-acquired AKI, the highest 90-day mortality (32.4%), and lowest renal function recovery (22.4%).
  • 19.2% of AKI cases occurred with normal creatinine levels, exhibiting lower mortality (22.6%) than those with elevated creatinine.

Conclusions:

  • Different AKI rules have varying associations with AKI origin and patient outcomes.
  • Rule 2 identifies high-risk hospital-acquired AKI patients requiring close monitoring.
  • Rule 3 is effective for detecting prevalent community-acquired AKI, while AKI with normal creatinine warrants further investigation.