Publication Date

1-1-2024

Journal

Clinical Journal of the American Society of Nephrology

DOI

10.2215/CJN.0000000000000244

PMID

37379081

PMCID

PMC10843202

PubMedCentral® Posted Date

6-28-2023

PubMedCentral® Full Text Version

Post-print

Published Open-Access

yes

Keywords

Hyponatremia, Humans, Practice Guidelines as Topic, Sodium, Severity of Illness Index, complications, hypernatremia, hypokalemia, hyponatremia, malnutrition, mortality risk, osmolality, outcomes, risk factors, water–electrolyte balance

Abstract

International guidelines designed to minimize the risk of complications that can occur when correcting severe hyponatremia have been widely accepted for a decade. On the basis of the results of a recent large retrospective study of patients hospitalized with hyponatremia, it has been suggested that hyponatremia guidelines have gone too far in limiting the rate of rise of the serum sodium concentration; the need for therapeutic caution and frequent monitoring of the serum sodium concentration has been questioned. These assertions are reminiscent of a controversy that began many years ago. After reviewing the history of that controversy, the evidence supporting the guidelines, and the validity of data challenging them, we conclude that current safeguards should not be abandoned. To do so would be akin to discarding your umbrella because you remained dry in a rainstorm. The authors of this review, who represent 20 medical centers in nine countries, have all contributed significantly to the literature on the subject. We urge clinicians to continue to treat severe hyponatremia cautiously and to wait for better evidence before adopting less stringent therapeutic limits.

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