This study aims to investigate the changes in renal function and levels of urinary biomarkers before and after cardiac angiography in children with congenital heart disease (CHD).

中文翻译：

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先天性心脏病患儿心脏血管造影后肾损伤生物标志物

本研究旨在探讨先天性心脏病（CHD）患儿心脏血管造影前后肾功能和尿生物标志物水平的变化。