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Isotonic Intravenous Maintenance Fluid Reduces Hospital Acquired Hyponatremia in Young Children with Central Nervous System Infections

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Abstract

Objective

To find the appropriate type of intravenous fluid (isotonic vs. hypotonic saline in 5 % dextrose) for empiric maintenance fluid therapy in children with central nervous system (CNS) infections that reduces the incidence of hospital acquired hyponatremia.

Methods

This blinded randomized controlled trial included hospitalized children aged 3 mo to 5 y with suspected CNS infections requiring intravenous maintenance fluid for at least 24 h. The subjects were randomized to receive 0.9 % saline (Group-A), 0.45 % saline (Group-B) and 0.18 % saline (Group-C) at standard maintenance rate. The outcome measures were proportion of patients developing hyponatremia (serum sodium < 135 mmol/L) after 24 h and serum sodium values at 6, 12, 18, 24 h of receiving maintenance fluids.

Results

Of the 92 patients enroled, 31, 30 and 31 patients were randomized to Group A, B and C, respectively. Majority (60.7 %) of the patients in Group-C developed hyponatremia compared with 7.1 % of the children in Group-A and 46.1 % in Group-B. During first 24 h of fluid administration successive fall in the serum sodium values was observed in patients receiving hypotonic fluids. The risk of developing hyponatremia was nearly 6½ (95 % confidence interval (CI) 1.6–26) to 8.5 (95 % CI 2.16–33.39) times more in patients who received hypotonic saline compared to those who received isotonic saline.

Conclusions

Administration of 0.9 % saline in 5 % dextrose as intravenous maintenance fluid in children with CNS infection leads to significantly less incidence of hyponatremia when compared to that with hypotonic fluids.

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Contributions

HP and AKD: Conceptualized and developed the research protocol; RS: Collected data; HP and KM: Supervised data collection and analysis; RS and KM: Drafted the manuscript; HP and AKD: Reviewed and revised it. HP will act as guarantor for this paper.

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Authors and Affiliations

  1. Department of Pediatrics, Lady Hardinge Medical College, and Kalawati Saran Children’s Hospital, New Delhi, 110001, India

    Harish K. Pemde, Ashok K. Dutta, Ravitanaya Sodani & Kirtisudha Mishra

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  1. Harish K. Pemde
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  2. Ashok K. Dutta
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  3. Ravitanaya Sodani
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  4. Kirtisudha Mishra
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Correspondence to Harish K. Pemde.

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Pemde, H.K., Dutta, A.K., Sodani, R. et al. Isotonic Intravenous Maintenance Fluid Reduces Hospital Acquired Hyponatremia in Young Children with Central Nervous System Infections. Indian J Pediatr 82, 13–18 (2015). https://doi.org/10.1007/s12098-014-1436-1

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  • DOI: https://doi.org/10.1007/s12098-014-1436-1

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