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Overcorrection of hyponatremia: where do we go wrong?
1Division of Nephrology, Department of Medicine, University of California at Los Angeles School of Medicine, Olive View-UCLA Medical Center, Sylmar, CA 91342, USA. pctp@ucla.edu
Summary
Hyponatremia correction can be too rapid due to management errors or unexpected water loss. Recognizing these pitfalls helps prevent overcorrection and osmotic demyelinating syndrome (ODS).
Area of Science:
- Nephrology
- Internal Medicine
- Clinical Chemistry
Background:
- Accurate prediction of serum sodium [Na(+)] levels during hyponatremia correction is crucial.
- Traditional calculations for hyponatremia management may not always align with observed patient outcomes.
Observation:
- Analysis of two cases revealed overly rapid correction of hyponatremia despite seemingly appropriate initial management.
- Overcorrection occurred due to miscommunication regarding administered fluids and electrolytes, and unexpected hypoosmotic polyuria.
Findings:
- Hyponatremia overcorrection is often non-random, stemming from excessive sodium/potassium gain or excessive water loss.
- Specific errors included inter-departmental communication failures and unrecognised physiological processes.
Implications:
- Preventable overcorrection of hyponatremia can be avoided by recognizing common clinical pitfalls.
- Awareness of these issues is vital for physicians to prevent osmotic demyelinating syndrome (ODS).