AKI associated with macroscopic glomerular hematuria: clinical and pathophysiologic consequences

Area of Science:

• Nephrology
• Pathophysiology
• Glomerular Diseases

Background:

• Hematuria is a common sign in glomerular diseases.
• Glomerular hematuria was previously thought to have minimal impact on renal function.
• Emerging data link macroscopic hematuria to acute kidney injury (AKI) and adverse outcomes.

Purpose of the Study:

• To review clinical data on glomerular hematuria and kidney injury.
• To explore the pathophysiology of hematuria-associated renal damage.
• To discuss potential therapeutic targets.

Main Methods:

• Review of clinical data and published studies.
• Analysis of pathophysiologic mechanisms of renal damage.
• Discussion of emerging evidence on oxidative stress and therapeutic targets.

Main Results:

• Macroscopic glomerular hematuria is associated with AKI.
• AKI from macroscopic hematuria can result in incomplete renal function recovery (up to 25%).
• Oral anticoagulation may exacerbate kidney injury in macrohematuria.

Conclusions:

• Hematuria-associated AKI has significant implications for long-term renal prognosis.
• Oxidative stress from heme and iron contributes to tubular injury.
• Heme oxygenase and CD163 represent potential therapeutic targets for kidney protection.