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Table 2 Intervention definitions and parameters - Key Performance Indicators (KPIs)

From: A study protocol for improving the delivery of acute kidney replacement therapy (KRT) to critically ill patients in Alberta – DIALYZING WISELY

CRRT KPI

Operational Definition

Proposed Benchmark

Filter Life

Average number of hours of filter life of all filters per quarter

>  50% of filters last 72 hours

Downtime

Time CRRT not running per day/

Each day of CRRT prescription

<  15%

Delivered Dose

Actual delivered dose in ml/Kg/h /

Prescribed dose in ml/Kg/h

>  85% of dose and between 25 and 30 ml/Kg/h

Ultrafiltration Realized

Ultrafiltration realized per 24 hours/

Ultrafiltration prescribed per 24 hours

> 85%

Access Alarms

Number of alarms recorded per machine per day of therapy

<  5 alarms/d

IRRT KPI

Operational Definition

Proposed Benchmark

Treatment Completion

Number of IRRT treatment completed/

Total number of IRRT treatments

100%

Treatment Time

[Delivered – Prescribed hours of dialysis therapy]/

Prescribed hours of dialysis therapy

> 85% of time

Solute Clearance

Percentage difference between serum urea pre-treatment and serum urea post treatment

> 10% decrease/treatment

Ultrafiltration Realized

Ultrafiltration realized for treatment/

Ultrafiltration prescribed per treatment

> 85%

Catheter Malfunction

Number of IRRT runs with catheters reversed/

Number of IRRT runs

<  20%

Prescriber Report Metrics

RRT Initiation Criteria

Benchmarksa

Serum potassium

> 6.0 mmol/L

pH

< 7.20

Serum bicarbonate

< 12 mmol/L

Oxygenation status

Impaired oxygenation as per P/F ratio of < 200

Cumulative volume status

Cumulative Fluid Balance defined as > 10% positive fluid balanceb anchored from time of ICU admission

  1. aBenchmarks obtained from STARRT-AKI inclusion criteria
  2. bCumulative Fluid Balance is calculated as (fluid intake – fluid output in liters since ICU admission) / (weight in kilograms) × 100%