Organ support & nutrition

Long-term outcomes after severe acute kidney injury in critically ill patients: the SALTO study

Ann Intensive CarePublished Prospective follow-up study of the AKIKI randomised trial

Authors' conclusion

Severe AKI in critically ill patients was associated with a high proportion of death within the first 2 months but less so during long-term follow-up. A quarter of long-term survivors experienced a WRF and suffered from a noticeable impairment of quality of life. Renal replacement therapy initiation strategy was not associated with mortality outcome.

Study context

Population
Critically ill patients with severe acute kidney injury (AKI) included in the AKIKI trial of renal replacement therapy (RRT) initiation strategy, surviving after 60 dayssurvived after 60 days
Participants
316 patients
Primary endpoint
Long-term survival, renal outcome and health related quality of life (HRQOL)
Methodological detailsmulticentre, long-term follow-up
  • Multicentre
  • Long-term follow-up

Primary result

As reported in the abstract

Overall survival rate at 3 years from inclusion
39.4% (95% CI 35.4 to 43.4)
Worsening of renal function at follow-up, of 175 with available data
46
Overall incidence of worsening of renal function (WRF)
26%
Cumulative incidence of WRF at 4 years
20.6% (95% CI 13.0 to 28.3)
Chronic dialysis required
15
Chronic dialysis, % of patients who survived after day 90
5%
Median EQ-5D index value (IQR 0.40 to 1.00), noticeable alteration of quality of life
0.67

Further findings

EQ-5D questionnaire response among long-term survivors

Answered EQ-5D, of 226 long-term survivors
80
Response rate
35%

Influence of RRT initiation strategy on long-term outcomes

Initiation strategy for RRT had no effect on any long-term outcome

Original publication

Long-term outcomes after severe acute kidney injury in critically ill patients: the SALTO study. Ann Intensive Care. Published 13 March 2023. doi:10.1186/s13613-023-01108-x

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