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Published on: July 3, 2013
[Contrast nephropathy and prevention]
1Klinika nefrologie Transplantcentra IKEM Praha. vladimir.teplan@ikem.cz
Insights
Contrast-induced nephropathy (CIN) prevention strategies include hydration and N-acetylcysteine. Trimetazidine (TMZ) shows promise as a cytoprotective agent for CIN prophylaxis in high-risk patients.
Area of Science:
- Nephrology
- Cardiology
- Pharmacology
Context:
- Contrast-induced nephropathy (CIN) is a significant risk following radiocontrast procedures, particularly in patients with pre-existing renal impairment.
- Identifying effective preventative measures is crucial for managing high-risk patient populations.
Purpose:
- To explore the potential of trimetazidine (TMZ), a cytoprotective anti-ischemic agent, as a prophylactic treatment against contrast-induced nephropathy (CIN).
- To review current recommendations for CIN prevention, including hydration, bicarbonate, and N-acetylcysteine, and discuss adjunctive therapies.
Summary:
- Trimetazidine (TMZ) exhibits antioxidant and metabolic properties, influencing cellular and mitochondrial reperfusion, positioning it as a candidate for CIN prophylaxis.
- Standard preventive measures involve optimizing intravenous hydration, potentially with bicarbonate and N-acetylcysteine.
- In severe instances, hemofiltration may aid in contrast agent elimination, while urinary NGAL offers early detection of tubular damage.
Impact:
- This research highlights trimetazidine as a potential therapeutic agent to mitigate CIN risk.
- It emphasizes the importance of a multi-faceted approach to CIN prevention, combining established methods with novel pharmacological interventions.
- Early diagnostic markers like urinary NGAL could improve patient outcomes.
Abstract:
Contrast-induced nephropathy (CIN) is a serious complication of radio-contrast vascular examination, mainly in high-risk patients with decreased renal function. In prevention, we have to know risk factors strongly influencing follow-up. All potential nephrotoxic drugs should be excluded. We recommend adequate intravenous hydration, supplemented individually with bicarbonate and N-acetylcystein. Studies designed to explore options in CIN prevention included trimetazidine (TMZ) belonging to cytoprotective antiischemic agents used in the treatment of angina pectoris. Trimetazidine affects reperfusion at the cellular and mitochondrial levels, and has antioxidant and metabolic activity via several mechanisms at the cellular level, that is, it shows characteristics making it a clear candidate for CIN prophylaxis. In serious cases hemofiltration could be used to help eliminate contrast solution as soon as posible. Beside serum creatinine, NGAL detected in urine may help in early diagnosis of tubular damage.
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