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Water metabolism and postconcussional symptoms 5 weeks after mild head injury
N Bohnen1, A Twijnstra, J Jolles
1Department of Neuropsychology and Psychobiology, University of Limburg, Maastricht, The Netherlands.
Abstract:
Posttraumatic diabetes insipidus has been reported as a sequela to head injury. It is unknown whether subclinical types of diabetes insipidus, or other types of water metabolism disorders, occur after mild head injury (MHI) and, if so, whether they are related to the persistence of postconcussional symptoms. MHI patients (n = 38) were screened for disturbances of water metabolism by comparing plasma and urine osmolalities at about 5 weeks after the trauma. Eight patients had evidence of an increased plasma osmolality together with a relatively decreased urine osmolality after an overnight fast. The presence of this disturbance was significantly related to the persistence of postconcussional symptoms. The results suggest that subclinical disturbances of water metabolism may, among other factors, be related to the persistence of symptoms after MHI.
Insights
Mild head injuries may cause subclinical water metabolism disorders, potentially linked to persistent postconcussional symptoms. Further research is needed to understand this connection in mild head injury (MHI) patients.
Area of Science:
- Neurology
- Endocrinology
- Trauma research
Background:
- Posttraumatic diabetes insipidus is a known complication of severe head injuries.
- The occurrence and impact of subclinical water metabolism disorders after mild head injury (MHI) remain largely unexplored.
- Understanding these disorders is crucial for managing persistent postconcussional symptoms.
Purpose of the Study:
- To investigate the prevalence of subclinical water metabolism disturbances following MHI.
- To determine if these disturbances are associated with the persistence of postconcussional symptoms.
Main Methods:
- Screening of 38 MHI patients for water metabolism disturbances.
- Comparison of plasma and urine osmolalities approximately 5 weeks post-trauma.
- Statistical analysis to correlate water metabolism findings with symptom persistence.
Main Results:
- Eight out of 38 MHI patients (approximately 21%) exhibited evidence of disturbed water metabolism.
- This disturbance was characterized by increased plasma osmolality and relatively decreased urine osmolality after fasting.
- A significant association was found between these water metabolism disturbances and the persistence of postconcussional symptoms.
Conclusions:
- Subclinical water metabolism disturbances may occur after MHI.
- These disturbances appear to be significantly related to the persistence of postconcussional symptoms.
- Further investigation into water metabolism is warranted for a comprehensive understanding of MHI recovery.