You are here

Adenotonsillectomy Normalizes Hormones and Urinary Electrolytes in Children With Nocturnal Enuresis and Sleep-Disordered Breathing

By Larisa Kovacevic, Hong Lu, Cortney Wolfe-Christensen, Ibrahim Abdulhamid, Prasad J. Thottam, Mark Lulgjuraj, David N. Madgy, and Yegappan Lakshmanan

Urology, Volume 86, Issue 1, 1 July 2015, Pages 158-161

Editor’s comments:
This study investigated the effect of tonsillectomy in children with sleep-disordered breathing and either bedwetting or no bedwetting, specifically with regard to brain natriuretic peptide, urinary levels of electrolytes and ADH. The first finding was that bedwetting children with sleep-disordered breathing had lower ADH levels and higher brain natriuretic peptide levels compared to the non-bedwetting children with sleep-disordered breathing. The second finding was that the hormonal levels “normalized” after the tonsillectomy in bedwetting children with sleep-disordered breathing.

This study delivers another strong argument for including the question “Does the bedwetting child snore during sleep?” in the screening questions.

Abstract


Objective

To assess (1) plasma levels of antidiuretic hormone (ADH) and brain natriuretic peptide (BNP) and urinary levels of electrolytes in children with sleep disordered breathing (SDB), with or without nocturnal enuresis (NE), and (2) the effect of adenotonsillectomy (T&A) on urinary electrolytes and the secretion of ADH and BNP in children with NE and SDB. We previously reported post-T&A improvements in plasma levels of BNP and ADH in children with SDB and NE. However, the differences in plasma concentration of these hormones in SDB children with and without NE, and their relationships with urinary electrolytes, have not yet been addressed.

Methods

This prospective study compared concentrations of urinary electrolytes and plasma ADH and BNP in (1) children with SDB and NE (study group) and an age- and sex-matched control group of children with SDB without NE, and (2) the study group before and 1-month after T&A.

Results

Compared with the control group (n = 31), the study group (n = 37) exhibited significantly lower ADH (P =.04) and higher BNP (P =.009) plasma levels. The differences in urinary electrolytes were not significant. Post-T&A, the study group showed significantly decreased BNP (P =.018), urinary sodium-to-creatinine ratio (P =.02), and urinary calcium-to-creatinine ratio (P =.007) compared with the pre-T&A values. Post-T&A changes in urinary calcium were significantly correlated with changes in sodium excretion (P =.002) and in plasma levels of BNP (P <.001).

Conclusion

The presence of NE is associated with altered ADH and BNP levels in children with SDB. T&A led to normalization of ADH and BNP, probably through a calcium- and sodium-dependent mechanism.

Search

Search form

The editorial independence of the resource centre is mandatory and recognized by the EAU and Elsevier.
The journal articles, videos and statements published on the resource centre have been selected independently and without influence from Elsevier, European Urology Editors or the sponsor and do not necessarily reflect their opinions or views.