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Nefrología (Madrid)

versión On-line ISSN 1989-2284versión impresa ISSN 0211-6995

Resumen

RUNKLE, Isabelle et al. Treatment of hyponatremia induced by the syndrome of inappropriate antidiuretic hormone secretion: a multidisciplinary algorithm. Nefrología (Madr.) [online]. 2014, vol.34, n.4, pp.439-450. ISSN 1989-2284.  http://dx.doi.org/10.3265/Nefrologia.pre2014.Apr.12220.

Introduction: The syndrome of inappropriate antidiuretic hormone secretion (SIADH) is the most frequent cause of hyponatremia in a hospital setting. However, detailed protocols and algorithms for its management are lacking. Our objective was to develop 2 consensus algorithms for the therapy of hyponatremia due to SIADH in hospitalized patients. Material and methods: A multidisciplinary group made up of 2 endocrinologists, 2 nephrologists, 2 internists, and one hospital pharmacist held meetings over the period of a year. The group worked under the auspices of the European Hyponatremia Network and the corresponding Spanish medical societies. Therapeutic proposals were based on widely-accepted recommendations, expert opinion and consensus guidelines, as well as on the authors' personal experience. Results: Two algorithms were developed. Algorithm 1 addresses acute correction of hyponatremia posing as a medical emergency, and is applicable to both severe euvolemic and hypovolemic hyponatremia. The mainstay of this algorithm is the iv use of 3% hypertonic saline solution. Specific infusion rates are proposed, as are steps to avoid or reverse overcorrection of serum sodium levels. Algorithm 2 is directed to the therapy of SIADH-induced mild or moderate, non-acute hyponatremia. It addresses when and how to use fluid restriction, solute, furosemide, and tolvaptan to achieve eunatremia in patients with SIADH. Conclusions: Two complementary strategies were elaborated to treat SIADH-induced hyponatremia in an attempt to increase awareness of its importance, simplify its therapy, and improve prognosis.

Palabras clave : Hyponatremia; SIADH; Antidiuretic hormone.

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