, Volume 24, Issue 10, pp 2065-2067
Date: 10 Jun 2009

Melamine exposure assessment in children with nephrolithiasis

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We describe here the estimated melamine intake in 49 infant patients treated at the Linyi People's Hospital in Linyi, Shandong Province, China. Our aim is to draw attention to the fact that low levels of melamine exposure may also represent a health risk to young children.

Between September 17 and 29, 2008, an ultrasonographic screening of infants was carried out at the Linyi People's Hospital. In all, 63 cases of nephrolithiasis and/or hydronephrosis were identified among the 3976 infants screened who had ingested melamine-tainted formula milk, and one case was identified among the 358 infants screened who had not ingested melamine-tainted formula. Melamine-tainted formula was defined as that formula known to be contaminated with melamine based on test results posted by China’s General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) [1]. In December 2008, we reinvestigated 49 stone-formers with a history of melamine ingestion who were among those screened