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Hyponatremia: diagnosis, complications, and management including V2 receptor antagonists.

AbstractPURPOSE OF REVIEW:
Recent studies have consistently demonstrated the common prevalence of hyponatremia in the hospital and intensive care settings, and how it correlates with untoward outcomes. This review discusses the classification, diagnosis, and pathophysiology of hyponatremia and how these agents may influence its management, and also examines the available treatment options and their weaknesses and strengths.
RECENT FINDINGS:
This review is timely and relevant, as mild degrees of serum sodium lowering may be associated with adverse neurologic and musculoskeletal effects. These findings have the potential to transform our approach to managing hyponatremia. A major advance in our ability to treat hyponatremia was the introduction and approval of aquaretics (vaptans). Emerging data on vaptans and their potential role to treat hyponatremia in the settings of the syndrome of inappropriate antidiuretic hormone secretion, congestive heart failure, and liver cirrhosis are presented.
SUMMARY:
Vaptans will likely play an important role in treating hyponatremia, given their clinical effectiveness and tolerability. Cost remains a hindrance for vaptans, and more studies are needed to further define their best utilization in hyponatremic patients.
AuthorsElwaleed A Elhassan, Robert W Schrier
JournalCurrent opinion in nephrology and hypertension (Curr Opin Nephrol Hypertens) Vol. 20 Issue 2 Pg. 161-8 (Mar 2011) ISSN: 1473-6543 [Electronic] England
PMID21252664 (Publication Type: Journal Article, Review)
Chemical References
  • Antidiuretic Hormone Receptor Antagonists
  • Benzazepines
  • Tolvaptan
Topics
  • Adaptation, Physiological
  • Antidiuretic Hormone Receptor Antagonists
  • Benzazepines (therapeutic use)
  • Brain (physiology)
  • Exercise
  • Heart Failure (drug therapy)
  • Humans
  • Hyponatremia (complications, diagnosis, drug therapy)
  • Inappropriate ADH Syndrome (drug therapy)
  • Liver Cirrhosis (drug therapy)
  • Tolvaptan

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