International Multi-center Retrospective Study of Patients With Serum Sodium ≤110 mmol/L to Determine the Relationship Between Osmotic Demyelination Syndrome (ODS) and Rapid Correction of Hyponatremia

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

Inclusion Criteria:

• Serum sodium ≤110 mmol/L at admission to the hospital

Exclusion Criteria:

• Blood glucose >15 mmol/L, spurious laboratory dataa