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Updated: Aug 13, 2026

Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats
Published on: March 11, 2016
Renal function and cardiac angiography
Ayumi Niboshi1, Masashi Nishida, Toshiyuki Itoi
1Department of Pediatric Cardiology and Nephrology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kawaramachi-Hirokoji, Kamikyo-ku Kyoto, Japan.
Insights
Non-ionic contrast media can cause temporary kidney problems in children with heart disease. Neonates, infants, and those receiving larger doses or having cyanotic heart disease are at higher risk for contrast medium-induced nephropathy.
Area of Science:
- Pediatric Nephrology
- Cardiovascular Imaging
- Radiology
Background:
- Cardiovascular disease necessitates diagnostic imaging procedures.
- Contrast media are essential for angiography but can pose risks to renal function.
- Understanding contrast medium-induced nephropathy in pediatric populations is crucial.
Purpose of the Study:
- To evaluate the impact of non-ionic contrast media on renal function in pediatric patients undergoing cardiovascular angiography.
- To identify risk factors associated with contrast medium-induced nephropathy in this cohort.
Main Methods:
- Renal function was assessed in 98 children with cardiovascular disease before and after angiography.
- Serum creatinine (s-Cre) and urinary biomarkers (u-NAG/Cre, u-BMG/Cre, u-AMG/Cre) were measured.
- Data were analyzed based on age, contrast volume, and cyanotic status.
Main Results:
- Transient increases in urinary biomarkers (u-NAG/Cre, u-AMG/Cre, u-BMG/Cre) indicated renal tubular dysfunction 12 hours post-angiography.
- Higher elevations were observed in neonates/infants, those receiving >5 ml/kg contrast, and cyanotic patients.
- Serum creatinine levels remained unchanged, suggesting tubular, not glomerular, injury.
Conclusions:
- Non-ionic contrast media can induce transient renal tubular dysfunction in children with cardiovascular disease.
- Risk factors include young age (neonates/infants), higher contrast volumes (>5 ml/kg), and cyanotic heart disease.
- While renal function recovers long-term, careful consideration is needed to mitigate contrast medium-induced nephropathy in at-risk pediatric patients.
Objective:
To study the effect of non-ionic contrast medium on renal function in children with cardiovascular disease.
Methods:
Analysis of renal function in 98 children with cardiovascular disease before and after the use of Iopamidol, Iohexol, and Ioversol was done for angiography. Serum creatinine (s-Cre), urinary N-acetyl-beta-D-glucosaminase (u-NAG), urinary beta 2-microglobulin (u-BMG), and urinary alpha 1-microglobulin (u-AMG) levels were evaluated.
Results:
Although s-Cre levels remained unchanged, u-NAG/Cre, u-AMG/Cre and u-BMG/Cre significantly increased 12 hours after angiography. Levels of u-NAG/Cre, u-BMG/Cre, and u-AMG/Cre after angiography were significantly higher in neonates and infants (age< 12-months, n=32) than in children (age>1-year, n=61), in patients with more than 5 ml/kg of contrast medium (n=25) than in those with less than 5 ml/kg (n=70) and in cyanotic patients (n=13) than in non-cyanotic (n=80) patients.
Conclusion:
Transient renal tubular dysfunction occurred in all of these three non-ionic contrast mediums. Although renal tubular function was intact on a long-term basis, one should be careful of contrast medium-induced nephropathy, especially in neonates and infants, in patients receiving more than 5 ml/kg of contrast mediums in total, and in patients with cyanotic heart disease in using non-ionic contrast mediums.
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