An Analysis of the Prevalence and Risk Factors of Contrast-Associated Acute Kidney Injury in Patients With Diabetic

Hüseyin Karaaslan1, Nida Uyar1, Ensar Gazi Göçer2

  • 1Department of Endocrinology, School of Medicine, Harran University, Sanliurfa, Turkey.

Angiology
|February 6, 2023
PubMed

Insights

Contrast-associated acute kidney injury (CA-AKI) is common in diabetic foot ulcer (DFU) patients undergoing contrast-enhanced computed tomographic angiography (CTA). Key risk factors include longer diabetes history and heart failure, necessitating preventive measures.

Area of Science:

  • Nephrology
  • Cardiology
  • Endocrinology

Background:

  • Contrast-associated acute kidney injury (CA-AKI) is a significant complication linked to renal dysfunction, diabetes mellitus (DM), and atherosclerotic cardiovascular diseases (ASCVD).
  • Diabetic foot ulcers (DFU) often coexist with ASCVD risk factors and comorbidities, suggesting a potential for high CA-AKI prevalence in this population.

Purpose of the Study:

  • To investigate the incidence of CA-AKI in patients hospitalized for DFU.
  • To identify risk factors associated with CA-AKI in DFU patients undergoing contrast-enhanced computed tomographic angiography (CTA).

Main Methods:

  • Retrospective analysis of 208 type 2 diabetic patients hospitalized for DFU.
  • Division into two groups: 107 patients undergoing CTA (group 1) and 101 control patients not receiving contrast media (group 2).
  • Monitoring of serum creatinine levels post-CTA to diagnose AKI.

Main Results:

  • CA-AKI developed in 12.1% of patients in group 1 (underwent CTA) compared to 3.0% in group 2 (no contrast), P = 0.013.
  • Identified risk factors for CA-AKI included longer DM history, elevated baseline serum creatinine, congestive heart failure, advanced Wagner stage DFUs (4-5), peripheral artery disease, older age, and lower hemoglobin.
  • AKI occurred in 13 patients after CTA, with 3 in the control group showing serum creatinine elevations.

Conclusions:

  • CA-AKI is a frequent complication following CTA in patients with DFU.
  • Recognizing and managing identified risk factors is crucial for preventing CA-AKI in this vulnerable patient group.

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