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| Authors | L Micallef Grimaud M J Cachia |
| Abstract | Background: With recent emphasis on increased water intake during hot weather for the prevention of dehydration, there is a documented increase in cases of hyponatraemia related to excessive water intake. The most common symptoms related to cerebral oedema are changes in mental status, emesis, nausea and seizures. Case Report: A 30-year old British tourist on holiday in Malta last June presented with a two day history of lethargy and confusion. He also complained of slight tremor and sweating. Due to the sweltering heat and wary of the risks of dehydration, the patient had drunk fifteen litres of water over the 48 hours prior to his admission to hospital. Physical examination was unremarkable as was CT scan of the brain. Electrolytes, however revealed a hyponatraemia of 114mmols/L. The patient was advised fluid restriction, and within a day the Sodium levels had improved to 129mmols/L. His electrolytes were frequently monitored to ensure that over rapid correction of Sodium did not occur, thus preventing the potential danger of osmotic myelinolysis. Conclusion: Maintaining adequate hydration in hot weather is essential and of utmost importance but excessive fluid intake may lead to lifethreatening hyponatraemia. |
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| Journal | Malta Medical Journal |
| Volume | 15 Issue 1-2/suppl. 2003 |
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| Key words | case report, confusion, excess fluid intake, hyponatraemia |