Diabetes insipidus following cardiorespiratory arrest

Area of Science:

• Neurology
• Endocrinology
• Critical Care Medicine

Background:

• Cardiac arrest and subsequent hypoxemic encephalopathy represent critical medical emergencies.
• Polyuria and dehydration are common symptoms in critically ill patients, with diverse potential etiologies.

Observation:

• Two patients developed diabetes insipidus following severe hypoxemic brain damage post-cardiac arrest.
• The onset of diabetes insipidus occurred within three days of the hypoxic event.

Findings:

• Clinical and laboratory findings consistent with diabetes insipidus were observed.
• Administration of exogenous vasopressin effectively corrected the symptoms of diabetes insipidus in both patients.

Implications:

• Hypothalamic injury should be considered in the differential diagnosis of polyuria and dehydration after cardiorespiratory arrest.
• Early recognition and treatment of post-hypoxic diabetes insipidus can improve patient outcomes.
• This finding highlights a specific neurological complication of hypoxic brain injury.