Characteristic of clinical and ultrasound in infants with Melamine related urinary calculus

NIE Fang; TONG Ming-hui; CHE Yan; XU Ping; LU Hong-xia; CHEN Bin-juan

Journal of China Clinic Medical Imaging ›› 2009, Vol. 20 ›› Issue (9) : 665-667.

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Characteristic of clinical and ultrasound in infants with Melamine related urinary calculus

NIE Fang, TONG Ming-hui, CHE Yan, XU Ping, LU Hong-xia, CHEN Bin-juan

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Abstract

Objective: To evaluate the characteristic of clinical symptoms and ultrasound in infants with Melamine related urinary calculus. Methods: Data of 267 infant patients with urinary calculus due to drinking of Melamine tainted formula milk admitted to the Second Hospital of Lanzhou University from Sept. 2008 to Oct. 2008 were analyzed retrospectively, including clinical and ultrasound characteristics. Results: The infants aged 1~2 years showed highest incidence of urinary calculus. The ratio between male and female in infants was 1.5∶1. The percentage of stones located in lower renal calices was the highest(57％). Various forms of stones based on the accumulated appearance were as broken slag, posterior border of stone was clear, and accompanied with acoustic shadow. The size of calculus in infants being fed with Melamine tainted formula milk between less than one year and one to two years had no statistically significant difference(P＞0.05). Compared with the group of less than one year and one to two years, the size of calculus in infants more than two years had statistically significant difference(P＜0.05). Conclusion: The high-frequency ultrasound provide a simple and an accurate method for characterization and quantitation of Melamine related urinary calculus in infant.

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Urolithiasis / Ultrasonography / Doppler / color

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NIE Fang;TONG Ming-hui;CHE Yan;XU Ping;LU Hong-xia;CHEN Bin-juan. Characteristic of clinical and ultrasound in infants with Melamine related urinary calculus[J]. Journal of China Clinic Medical Imaging. 2009, 20(9): 665-667