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Year : 2013  |  Volume : 23  |  Issue : 2  |  Page : 103-107

Asymptomatic bacteriuria in Nigerian children with sickle cell anemia

1 Department of Paediatrics and Child Health, Obafemi Awolowo University, Ile Ife, Osun state, Nigeria
2 Department of Surgery, University Teaching Hospital, Ado Ekiti, Nigeria

Correspondence Address:
S A Adegoke
Department of Paediatrics and Child Health, Obafemi Awolowo University, Ile Ife, Osun State
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-4065.109410

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Urinary tract infections (UTI) in children with sickle cell anemia (SCA) may result in long term renal dysfunction. The prevalence, potential risk factors, and clinical significance of asymptomatic bacteriuria (ASB) were investigated in 196 Nigerian children with SCA in stable state. These children had clinical evaluation and assessment of their mid-stream urine (MSU) for pyuria, culture, and sensitivity tests; urinalysis for proteinuria, and estimated glomerular filtration rate (eGFR), hematocrit, serum creatinine and uric acid estimation. Children with confirmed ASB were compared with those without ASB. Those with confirmed ASB were monitored for 6 months for persistence of significant growth, development of symptomatic UTI, and evaluation of renal functions. The prevalence of probable and confirmed ASB in this cohort of SCA children were 12.2% and 6.6%, respectively. Confirmed ASB was more prevalent among older ( P = 0.046) and female ( P = 0.003) SCA children, particularly those with pyuria (odd Ratio, OR = 5.4, 95% confidence interval, CI = 2.7-11.0, P < 0.001) and proteinuria (OR = 1.4, 95% CI = 3.9-8.7, P = 0.006). Previous symptomatic UTI was not associated with ASB. Also, the mean eGFR, serum creatinine, and uric acid were not different in the group with ASB and those without ASB ( P > 0.05). At the end of 6 month follow-up, two (15.4%) of the 13 children with ASB had persistence of significant growth, but none develop symptomatic UTI. Also, none of the two with persistent ASB had hypertension or deranged renal function. ASB is a significant problem in older age female SCA children, although renal functions were not different among those with and without ASB. A large scale randomized placebo-controlled trial of conventional treatment for ASB in SCA is advocated to define its long-term clinical significance.


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Indian Journal of Nephrology
Published by Wolters Kluwer - Medknow
Online since 20th Sept '07