Investigation of urine random calcium, uric acid and oxalate urinary system ultrasonography findings in 7-11 year old students: A multicenter study

Background and aim: Renal diseases can be asymptomatic even in progressive disorders, so detecting urine and ultra sonographic abnormalities may help early diagnosis and prevention of disease occurrence. We aimed to investigate random urine parameters and urinary system ultrasonography findings in 7-11 year old students.Methods: Healthy students from Tehran and Qom, cities of Iran were enrolled in a prospective descriptive study. We evaluated students by sex, age, weight, height, BMI. Then, they were examined by a fresh clean urine sample and ultrasonography of urinary tract. Urine was investigated for urine Ca/Cr, urine Oxalate/Cr, urine Citrate/Cr.Results: From 932 students, 47.9% were female and 52.1% were male. The age range was 7-11 year and mean age was 9.08 year. History of renal disease and UTI were seen in 1.1% and 9.9% of students, respectively. In 78% of students ultrasonography was normal and in 22% it was abnormal. Abnormal findings included, Hydro nephrosis in 1.1%, fullness in 0.1%, duplication in 3%, stone in 0.7%, decrease size of kidneys in 0.4%, increased bladder thickness in 8.9% and other abnormal findings in 7.8%. Abnormal urine findings included, urine Ca/Cr in 10.9%, urine Oxalate/Cr in 12.8%, urine Uric Acid/Cr in 5.4%, urine Citrate/Cr in 96.9%.Conclusion:According to the results, it is beneficial to perform these urinary screen tests to prevent progression to urinary system diseases

Keywords:

urine analysis , ultrasonography , Urolithiases