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Renal function and injury in infants and young children with congenital heart disease

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Abstract

Background

The aim of this study was to investigate renal function and injury in infants and young children with congenital heart disease (CHD).

Methods

We prospectively enrolled 58 CHD children aged ≤3 years and 20 age-matched controls and divided these into four groups: Group I, acyanotic CHD (n = 24); Group II, cyanotic CHD with arterial oxygen saturation of >75 % (n = 20); Group III, cyanotic CHD with arterial oxygen saturation of ≤75 % (n = 14); Group IV, normal controls (n = 20). Urinary levels of microalbumin (MA), N-acetyl-ß-D-glucosaminidase (NAG), and α1-microglobulin (α1-MG) corrected by creatinine (UCr) were compared.

Results

Children with CHD had elevated urinary α1-MG/UCr levels, with Group III children having the highest level. Groups I and III children had higher urinary NAG/UCr levels than those of Groups II and IV. Urinary MA/UCr levels in the three patient groups were comparable and significantly higher than that in the control group. A α1-MG × 100/ (α1-MG + MA) of <15 %, indicative of glomerular damage, was present in two patients in Group I and one in Group III, but none in Group II.

Conclusions

Tubular injury can occur in CHD patients during infancy and early childhood. Among our patient cohort, it was most prominent in children with severe cyanosis. Glomerular injury was detected in some individuals with advanced heart failure or severe cyanosis.

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Acknowledgments

We sincerely thank all of the children who participated in this study and their legal guardians for supporting our work.

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Authors and Affiliations

  1. Center for Cardiovascular Diseases, PLA Navy General Hospital, Beijing, People’s Republic of China

    Jianyong Zheng

  2. Department of Pediatric Nephrology, Peking University First Hospital, Beijing, People’s Republic of China

    Yong Yao

  3. Department of Pediatric Cardiology and Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, No.2 Anzhen Road, Beijing, People’s Republic of China

    Ling Han & Yanyan Xiao

Authors
  1. Jianyong Zheng
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  2. Yong Yao
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  3. Ling Han
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  4. Yanyan Xiao
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Correspondence to Ling Han.

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Zheng, J., Yao, Y., Han, L. et al. Renal function and injury in infants and young children with congenital heart disease. Pediatr Nephrol 28, 99–104 (2013). https://doi.org/10.1007/s00467-012-2292-8

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  • DOI: https://doi.org/10.1007/s00467-012-2292-8

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