SIADH (Syndrome of Inappropriate ADH)

Definition

SIADH is a syndrome characterized by excessive water retention, hyponatremia, and inappropriate concentration of urine resulting from inappropriate antidiuretic hormone (ADH) secretion.

Symptoms

  • Nausea, vomiting
  • Headache
  • Confusion
  • Muscle cramps

Reasons

Lung diseases, CNS disorders, medications, malignancies.

Diagnosis

Hyponatremia, low plasma osmolarity, high urine osmolarity.

Treatment

Fluid restriction, demeclocycline, vaptans.

Which Polyclinic Should You Apply To?

Endocrinology Polyclinic or Nephrology Polyclinic

What to Do in an Emergency?

In case of seizure or coma due to severe hyponatremia, emergency services should be consulted.

This page is for general information purposes only.