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Psychogenic polydipsia after traumatic brain injury. A case report
R D Zafonte1, T K Watanabe, N R Mann
1Department of Physical Medicine and Rehabilitation, Detroit Medical Center, Wayne State University, Michigan, USA.
Summary
Traumatic brain injury (TBI) can cause electrolyte issues, including hyponatremia. This case highlights psychogenic polydipsia as a treatable cause of excessive thirst and urination after TBI.
Area of Science:
- Neuroscience
- Endocrinology
- Nephrology
Background:
- Electrolyte abnormalities are frequent complications following traumatic brain injury (TBI).
- Hyponatremia, particularly due to syndrome of inappropriate antidiuretic hormone (SIADH) and cerebral salt-wasting syndrome (CSWS), is a common concern.
- Distinguishing causes of hyponatremia is critical as treatments vary significantly.