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[Does cerebral salt wasting syndrome exist?].

P-E Leblanc1, G Cheisson, T Geeraerts

  • 1Département d'anesthésie-réanimation chirurgicale, faculté de médecine Paris-Sud, Assistance publique-Hôpitaux de Paris, hôpital de Bicêtre, 78, rue du Général-Leclerc, 94275 Le Kremlin-Bicêtre, France. pierre-etienne.leblanc@bct.aphp.fr

Annales Francaises D'Anesthesie Et De Reanimation
|October 16, 2007
PubMed
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Subarachnoid hemorrhage (SAH) often causes increased natriuresis, leading to hyponatremia. Distinguishing between inappropriate antidiuretic hormone secretion and cerebral salt wasting syndrome (CSWS) is challenging, impacting patient management.

Area of Science:

  • Neurosurgery
  • Nephrology
  • Endocrinology

Context:

  • Subarachnoid hemorrhage (SAH) frequently leads to increased natriuresis.
  • This can result in hyponatremia, posing risks of severe hypo-osmolarity or hypovolemia.
  • Distinguishing between Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH) and Cerebral Salt Wasting Syndrome (CSWS) after SAH is clinically difficult.

Purpose:

  • To explore the complex mechanisms of natriuresis following SAH.
  • To discuss the challenges in differentiating between SIADH and CSWS.
  • To propose a revised understanding of salt wasting in the context of SAH.

Summary:

  • Increased natriuresis post-SAH is common and linked to hyponatremia.
  • Factors influencing natriuresis include blood pressure, volemia, and natriuretic peptides, all affected by cerebral insult and treatments.

Related Experiment Videos

  • The term "cerebral" in CSWS may be misleading; an "appropriate or non-appropriate natriuretic response" is suggested.
  • Corticosteroids and urea show potential in managing hypernatriuresis.

    • Impact:

    • Clarifies the pathophysiology of salt and water imbalance after SAH.
    • Highlights the diagnostic challenges in neurocritical care.
    • Suggests a more accurate terminology for salt-wasting conditions post-SAH.
    • Informs potential therapeutic strategies for managing electrolyte disturbances.