Neurological Complications Associated With Serum Sodium ≤110 mmol/L and Its Treatment: An International Multi-Centre Retrospective Study.

Electronic medical records dating back as far as available for each center to identify patients admitted to the hospital with a serum sodium ≤110 mmol/l. Data on patient demographics, presenting symptoms, vital signs, laboratory findings, treatment given, sodium correction rates, presence of risk factors for osmotic demyelination syndrome (ODS) and outcomes including suspected and MRI-confirmed ODS, in-hospital death, and imaging confirmation of cerebral edema