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. 2023 Jul 1;237(1):79-86.
doi: 10.1097/XCS.0000000000000667. Epub 2023 Feb 27.

Development and Validation of a Renal Replacement after Trauma Scoring Tool

Jeffrey Santos  1 , Areg Grigorian  1 , Catherine Kuza  2 , Brent Emigh  3 , James Jeng  1 , Alliya Qazi  1 , Ninh T Nguyen  4 , Jeffry Nahmias  1   2   3   4
Affiliations

Development and Validation of a Renal Replacement after Trauma Scoring Tool

Jeffrey Santos et al. J Am Coll Surg. .

Abstract

Background: Stress on the healthcare system requires careful allocation of resources such as renal replacement therapy (RRT). The COVID-19 pandemic generated difficulty securing access to RRT for trauma patients. We sought to develop a renal replacement after trauma (RAT) scoring tool to help identify trauma patients who may require RRT during their hospitalization.

Study design: The 2017 to 2020 TQIP database was divided into a derivation (2017 to 2018 data) and validation (2019 to 2020 data) set. A 3-step methodology was used. Adult trauma patients admitted from the emergency department to the operating room or ICU were included. Patients with chronic kidney disease, transfers from another hospital, and emergency department death were excluded. Multiple logistic regression models were created to determine the risk for RRT in trauma patients. The weighted average and relative impact of each independent predictor was used to derive a RAT score, which was validated using area under receiver operating characteristic curve (AUROC).

Results: From 398,873 patients in the derivation and 409,037 patients in the validation set, 11 independent predictors of RRT were included in the RAT score derived with scores ranging from 0 to 11. The AUROC for the derivation set was 0.85. The rate of RRT increased to 1.1%, 3.3%, and 20% at scores of 6, 8, and 10, respectively. The validation set AUROC was 0.83.

Conclusions: RAT is a novel and validated scoring tool to help predict the need for RRT in trauma patients. With future improvements including baseline renal function and other variables, the RAT tool may help prepare for the allocation of RRT machines/staff during times of limited resources.

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References

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    1. Emigh BJ, Sahi SL, Teal LN, et al. Incidence and risk factors for acute kidney injury in severely injured patients using current kidney disease: improving global outcomes definitions. J Am Coll Surg 2020;231:326–332.
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