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Published on: November 3, 2023
Radiographic contrast-media-induced acute kidney injury: pathophysiology and prophylactic strategies
1Department of Surgery, Cambridge Vascular Unit, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Box 201, Cambridge CB2 0QQ, UK.
Insights
Contrast-induced acute kidney injury (CI-AKI) remains a significant concern in cardiovascular medicine. This review details CI-AKI pathophysiology, diagnostic biomarkers, and nephroprotective strategies against contrast media.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Radiology
Background:
- Contrast-induced acute kidney injury (CI-AKI) is a frequent complication following contrast-media-enhanced imaging.
- Increasing use of contrast media and an aging population with comorbidities contribute to high CI-AKI incidence.
Purpose of the Study:
- To provide a comprehensive review of contrast-induced acute kidney injury.
- To discuss the pathophysiology, diagnostic approaches, and preventive measures for CI-AKI.
Main Methods:
- Literature review focusing on pathophysiology, contrast media types, biomarkers, and prophylactic strategies for CI-AKI.
- Detailed discussion of existing research and clinical evidence.
Main Results:
- CI-AKI pathophysiology involves complex mechanisms influenced by contrast media properties.
- Serum and urinary biomarkers show potential for early CI-AKI diagnosis.
- Various prophylactic strategies exist, but their efficacy requires careful consideration.
Conclusions:
- Understanding CI-AKI pathophysiology is crucial for developing effective prevention strategies.
- Biomarker research is vital for timely CI-AKI diagnosis and management.
- Nephroprotection against CI-AKI necessitates a multi-faceted approach considering patient factors and contrast media selection.
Abstract:
Contrast-induced acute kidney injury (CI-AKI) is one of the most widely discussed and debated topics in cardiovascular medicine. With increasing number of contrast-media- (CM-) enhanced imaging studies being performed and growing octogenarian population with significant comorbidities, incidence of CI-AKI remains high. In this review, pathophysiology of CI-AKI, its relationship with different types of CM, role of serum and urinary biomarkers for diagnosing CI-AKI, and various prophylactic strategies used for nephroprotection against CI-AKI are discussed in detail.
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