Uric acid homeostasis in the evaluation of diuretic-induced hyponatremia
Φόρτωση...
Ημερομηνία
Συγγραφείς
Liamis, G.
Christidis, D.
Alexandridis, G.
Bairaktari, E.
Madias, N. E.
Elisaf, M. S.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer-reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
J Investig Med
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
BACKGROUND: Diuretics are one of the most common causes of severe hyponatremia. The responsible pathogenetic mechanisms remain unclear. Serum uric acid concentration has been proposed as an index of differentiating between two pathophysiologic constructs of diuretic-induced hyponatremia-extracellular volume depletion and syndrome of inappropriate antidiuretic hormone secretion (SIADH)-like state-but its discriminating value has not been verified in large series of patients. Here we attempt to illuminate the pathophysiology of diuretic-induced hyponatremia by focusing on uric acid homeostasis. Additionally, we analyze the epidemiology and clinical characteristics of the disorder. METHODS: We studied prospectively 158 adult patients with hyponatremia on admission to our internal medicine clinic. Here we report on those with diuretic-induced hyponatremia. RESULTS: Forty patients (13 male and 27 female) had diuretic-induced hyponatremia, rendering it the most common cause of the disorder (25.3%). These patients had lower mean ([Na+]) (121.2 +/- 7.2 vs 126.4 +/- 4.1 mEq/L, p = .0001) than the remaining hyponatremic patients. Patients with serum uric acid levels < 4 mg/dL (n = 14) exhibited a biochemical profile consistent with a SIADH-like state, whereas patients with serum uric acid levels > or = 4 mg/d (n = 26) were consistent with extracellular volume depletion. CONCLUSIONS: Diuretics are the most common cause of community-developed hyponatremia. The serum uric acid level effectively discriminates between two biochemical profiles of diuretic-induced hyponatremia, one consistent with extracellular volume depletion and another that simulates SIADH.
Περιγραφή
Λέξεις-κλειδιά
Aged, Creatinine/blood, Diagnosis, Differential, Diuretics/*adverse effects, Edema/blood/complications/diagnosis, Female, Humans, Hyponatremia/*blood/*chemically induced, Hypovolemia/blood/complications/diagnosis, Inappropriate ADH Syndrome/blood/complications/diagnosis, Male, Middle Aged, Osmolar Concentration, Prospective Studies, Sodium/blood, Urea/blood, Uric Acid/*blood
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
http://www.ncbi.nlm.nih.gov/pubmed/17441410
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικής