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High altitude impact on serum bicarbonate in healthy Mexican children: concerning the overdiagnosis of renal tubular acidosis

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  • Additional Information
    • Publication Information:
      Springer Science and Business Media LLC, 2024.
    • Publication Date:
      2024
    • Abstract:
      Altitude influences bicarbonate levels, it is a variable that is hardly considered in diagnosing Renal Tubular Acidosis (RTA), so it should be a factor to consider when diagnosing this pathology, especially at 2250 mts over the sea level as it is the case of Mexico City. RTA is most often misdiagnosed. Regarding of this, the present study established reference limits for bicarbonate levels in healthy children without pathologies associated with alterations in the acid-base balance in Mexico City and it´s metropolitan area.A total of 267 healthy pediatric patients were included, within normal estimated glomerular filtration rate (eGFR), and without any associated pathology of any alteration in the acid-base balance.Compared to older children, children younger than two years of age showed statistically higher levels of calcemia and cystatin C. On the other hand, this same group showed lower values of creatininemia, pCO2, and HCO3-. Percentile 50 of bicarbonate in children under two years of age were 19.9 mEq/L and 21.9 mEq/L in those over that age. A correlation was identified between HCO3- levels and pCO2 (r = 0.68; p
    • ISSN:
      1471-2369
    • Accession Number:
      10.1186/s12882-024-03779-5
    • Rights:
      CC BY NC ND
      URL: http://creativecommons.org/licenses/by-nc-nd/4.0/Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ (http://creativecommons.org/licenses/by-nc-nd/4.0/) .
    • Accession Number:
      edsair.doi.dedup.....8a41ac08b8bb02e57fe92c18325ec1c6