The phrase "akin system" is not commonly used in written English, but it can be understood in context.
You can use it when describing a system that is similar or comparable to another system.
Example: "The new software operates on an akin system to the one we previously used, making the transition easier for the team."
Alternatives: "similar system" or "comparable system".
We therefore defined AKI based on the AKIN staging system [ 6].
The AKIN classification system has since been developed to replace the RIFLE classification [ 7].
Of note, the AKIN staging system stipulates that SCr should increase within 48 hours for AKI to be defined.
Diagnosis and severity of AKI was defined by the AKIN classification system, using the worst criteria (sCr increment or reduced UO).
Acute kidney injury (AKI) occurring in association with rAAA was defined according to the serum creatinine-based criteria of the Acute Kidney Injury Network (AKIN) classification system [ 23].
Third, some could argue that we assessed AKI based on the RIFLE classification, commonly used at the time we designed our study, instead of the more recent Acute Kidney Injury Network (AKIN) staging system [ 35].
This has probably no influence on our results, as RIFLE 'injury' and 'failure' classes correspond to AKIN staging system 2 and 3. Finally, as we used low substitution rate HES, our results cannot be extrapolated to other types of HES.
Finally, it is important to note that we were unable to evaluate the pRIFLE criteria for AKI in comparison to the AKIN staging system, since we did not have complete data regarding patients' height.
Single-center studies have been performed in select pediatric populations using one of two similar standardized AKI definitions: the pediatric Risk, Injury, Failure, Loss, End-Stage Renal Disease criteria (pRIFLE) [ 5] or the Acute Kidney Injury Network (AKIN) staging system [ 6].
