• Medicina clinica · Aug 2022

    Review

    Syndrome of inappropriate antidiuretic hormone secretion.

    • Esteban Poch, Alicia Molina, and Gastón Piñeiro.
    • Servicio de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, España; IDIBAPS; Departamento de Medicina, Universidad de Barcelona, Barcelona, España. Electronic address: epoch@clinic.cat.
    • Med Clin (Barc). 2022 Aug 12; 159 (3): 139-146.

    AbstractHyponatremia is the most frequent electrolytic disorder in hospitalized patients, and the syndrome of inappropriate secretion of antidiuretic hormone (SIADH), the most frequent cause of hiponatremia with clinically normal extracellular volume. It consists of a disorder of the regulation of body water that obeys to different causes, mainly cancer, pulmonary illnesses, disorders of the central nervous system and diverse drugs. As in any hiponatremia it a physiological knowledge of the regulation of body water and sodium is essential as well as the application of precise diagnostic criteria in order to manage the problem with an effective treatment. The available data until the moment show that the clinical diagnosis of SIADH made by professionals is mainly not supported on the established criteria drawn by experts and this lack of accuracy probably hits in the therapeutic result. The basis of the treatment of the SIADH is to correct its cause, water restriction, solutes (sodium chloride) and the use of vaptans in case of failure of the previous measures.Copyright © 2022 Elsevier España, S.L.U. All rights reserved.

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