contrast-induced nephropathy
Also written as: CIN — contrast-induced nephropathy
Acute kidney injury following intravascular contrast agent administration, a key risk factor in vascular procedures.
Full Definition
Contrast-induced nephropathy (CIN) is defined as acute deterioration in kidney function occurring within 48-72 hours after contrast medium exposure, typically characterized by an increase in serum creatinine of 25% or 0.5 mg/dL from baseline. Risk factors include pre-existing renal impairment, diabetes, dehydration, and high contrast volumes. Prevention strategies include pre-procedural hydration, contrast minimization, and consideration of alternative imaging modalities in high-risk patients.
Usage
Usage note: Preferred term is now 'contrast-associated acute kidney injury' in some guidelines.
In Context
- "Given the patient's baseline creatinine of 2.1 mg/dL, we implemented CIN prevention protocols." — Pre-procedure documentation
- "Post-procedure creatinine rose to 2.8 mg/dL, consistent with contrast-induced nephropathy." — Follow-up note