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Research Article| Volume 10, ISSUE 6, P1145-1148, December 2014

Hypercalciuria in children with monosymptomatic nocturnal enuresis

      Abstract

      Objective

      The aim of this study was to measure the 24 h urinary calcium content in children with monosymptomatic nocturnal enuresis (MNE) and compare with those in healthy children to investigate whether there is any relation with enuresis and hypercalciuria.

      Material and methods

      This study included 120 children and adolescents with MNE aged between 7 and 14 years. Eighty age- and sex-matched healthy children served as a control group. To determine urinary calcium excretion, 24 h urine samples were collected. The children with enuresis were divided into two sub-groups as hypercalciuric and normocalciuric groups according to the amount of urinary calcium excretion.

      Results

      Hypercalciuria was found in 27 (23%) of the MNE patients compared with two (4%) of continent children (p < 0.001). In addition, the mean 24 h urine calcium/body weight ratio was higher in the enuresis group than in the control group, 2.94 ± 2.42 versus 1.59 ± 1.72, respectively (p = 0.002). When the children with enuresis were divided into two groups as normokalsiuric and hypercalciuric, the hypercalciuric children were younger and the majority of this group were boys..

      Conclusions

      Our study showed that hypercalciuria is common in children with MNE, so we suggested measuring urine calcium levels in NE patients. However, further studies are needed to clarify the relationship between hypercalciuria and NE in larger series..

      Keywords

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      References

        • Kamperis K.
        • Hagstroem S.
        • Rittig S.
        • Djurhuus J.C.
        Urinary calcium excretion in healthy children and children with primary monosymptomatic nocturnal enuresis.
        J Urol. 2006; 176: 770-773
        • Neveus T.
        • von Gontard A.
        • Hoebeke P.
        • et al.
        The standardization of terminology of lower urinary tract function in children and adolescents: report from the standardisation committee of the International children’s continence society.
        J Urol. 2006; 176: 314-324
        • Nevéus T.
        • Hansell P.
        • Stenberg A.
        Vasopressin and hypercalciuria in enuresis: a reappraisal.
        BJU Int. 2002; 90: 725-729
        • Valenti G.
        • Laera A.
        • Pace G.
        • et al.
        Urinary aquaporin 2 and calciuria correlate with the severity of enuresis in children.
        J Am Soc Nephrol. 2000; 11: 1873-1881
        • Pace G.
        • Aceto G.
        • Cormio L.
        • et al.
        Nocturnal enuresis can be caused by absorptive hypercalciuria.
        Scand J Urol Nephrol. 1999; 33: 111-114
        • Mohammadjafari H.
        • Kosaryan M.
        • Karami H.
        • Dabaghzadeh A.
        Response of enuretic children with and without hypercalciuria to nasal desmopressin.
        Iran J Pediatr. 2009; 19: 5-10
        • Valavi E.
        • Ahmadzadeh A.
        • Hooman N.
        • Aminzadeh M.
        Clinical correlation between hypercalciuria and nocturnal enuresis.
        Saudi J Kidney Dis Transpl. 2011; 22: 976-981
        • Nikibakhsh A.
        • Poostindooz H.
        • Mahmoodzadeh H.
        • Karamyyar M.
        • Ghareaghaji R.R.
        • Sepehrvand N.
        Is there any correlation between hypercalciuria and nocturnal enuresis?.
        Indian J Nephrol. 2012; 22: 88-93
        • Penido M.G.
        • Diniz J.S.
        • Moreira M.L.
        • et al.
        Idiopathic hypercalciuria presentation of 471 cases.
        J Pediatr (Rio J). 2001; 77: 101-104
        • Sargent J.D.
        • Stukel T.A.
        • Kresel J.
        • Klein R.Z.
        Normal values for random urinary calcium to creatinine ratios in infancy.
        J Pediatr. 1993; 123: 393-397
        • Nicolaidou P.
        • Themeli S.
        • Karpathios T.
        • et al.
        Family pattern of idiopathic hypercalciuria and its subtypes.
        J Urol. 1996; 155: 1042-1044
        • Deen P.M.
        • Daht N.
        • Caplan M.J.
        The aquaporin2 water channel in autosomal dominant primary nocturnal enuresis.
        J Urol. 2002; 167: 1447-1450
        • Valenti G.
        • Larea A.
        • Gouraud S.
        Low calcium diet in hypercalciuric children restores AQP2 excretion and improves clinical symptoms.
        Am J Physiol. 2002; 52: 895-903
        • Aceto G.
        • Penza R.
        • Coccioli M.S.
        • et al.
        Enuresis subtypes based on nocturnal hypercalciuria: a multicenter study.
        J Urol. 2003; 170: 1670-1673