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April 15, 2026International Journal of General MedicineOpen Access

The “Dilution Effect” of Augmented Renal Clearance on the Prognostic Utility of NT-proBNP in Patients with Severe Traumatic Brain Injury

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Authors

JDJiaxin DongQZQi ZhangMHMin Huang

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Overview

Retrospective cohort study quantifies the dilution effect of augmented renal clearance on NT-proBNP in severe traumatic brain injury patients, suggesting alterations in mortality risk assessment.

Key Points

  • This study aims to investigate how augmented renal clearance affects the prognostic utility of NT-proBNP in severe traumatic brain injury patients.
  • Retrospective cohort study of 352 patients with severe traumatic brain injury
  • Defined augmented renal clearance as creatinine clearance > 130 mL/min/1.73 m²
  • Stratified patients into ARC and Non-ARC cohorts
  • Utilized propensity score matching to mitigate confounders
  • Analyzed NT-proBNP levels using ROC curves and logistic regression
  • 141 patients (40.1%) exhibited augmented renal clearance
  • Patients with ARC had significantly lower NT-proBNP levels (P=0.0089)
  • AUC for NT-proBNP predictive accuracy was lower in ARC group (0.637) compared to Non-ARC group (0.833)
  • Developed an ARC-adjusted nomogram improving risk stratification (continuous NRI=0.590)
  • Elevated NT-proBNP remained a risk factor despite lower levels in ARC patients

Cite This Study

Dong et al. (2026) studied this question.

synapsesocial.com/papers/69df2bece4eeef8a2a6b0d8ehttps://doi.org/10.2147/ijgm.s593500
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