Clinical medicine (London, England)
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The differential diagnosis of hyponatraemia is notoriously wide. However, only a minority is acute, ie develops in less than 48 hours. We describe an unusual cause of water intoxication due to toothache. ⋯ Laboratory results disclosed profound hyponatraemia. Urinary indices were consistent with overdrinking, but in the absence of a reliable history, other aetiologies had to be excluded. This case highlights the benefit of a structured approach in the assessment of electrolyte disturbances.
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The patient in case 1 was a 50-year-old man who presented to the emergency department of the local hospital with chest pain and syncope for 3 hours due to acute myocardial infarction. He underwent cardiopulmonary resuscitation (CPR) followed by extracorporeal membrane oxygenation (ECMO), and intestinal perforation was detected on day 9. The patient in case 2 was a 58-year-old man who was admitted to the hospital with abdominal pain lasting for 3 days. ⋯ We believe that this case report will be important to alert clinicians to the possibility of this complication and to encourage early detection and intervention to improve prognosis. Conventionally, the gastrointestinal tract has received secondary attention in patients receiving ECMO support because the vital organs tend to be considered first. However, this case report illustrates the importance of monitoring gastrointestinal function in patients undergoing ECMO.