Hyperosmolar hyperglycemic state

Hyperosmolar hyperglycemic state
Synonyms	Hyperosmolar non-ketotic state, Hyperosmolar non-ketotic coma
Pronounce	N/A
Specialty	N/A
Symptoms	Dehydration, confusion, lethargy, seizures
Complications	Coma, death
Onset	Gradual
Duration	Variable
Types	N/A
Causes	Infection, medication noncompliance, stress
Risks	Type 2 diabetes, elderly, chronic illness
Diagnosis	Blood test, urinalysis
Differential diagnosis	N/A
Prevention	N/A
Treatment	Intravenous fluids, insulin therapy, electrolyte replacement
Medication	N/A
Prognosis	Variable
Frequency	Less common than diabetic ketoacidosis
Deaths	N/A

Hyperosmolar hyperglycemic state (HHS) is a serious complication of diabetes mellitus, particularly type 2 diabetes. It is characterized by extreme hyperglycemia, hyperosmolarity, and dehydration without significant ketoacidosis.

Signs and Symptoms

The symptoms of HHS include severe dehydration, confusion, lethargy, and in severe cases, seizures and coma. Patients may also experience polyuria and polydipsia.

Causes

HHS is often precipitated by factors such as infection, medication noncompliance, or stress. It is more common in the elderly and those with chronic illness.

Pathophysiology

In HHS, the body experiences extreme hyperglycemia due to insufficient insulin action. This leads to increased osmolarity of the blood, causing water to move out of cells and resulting in severe dehydration. Unlike diabetic ketoacidosis, there is minimal ketone production.

Diagnosis

Diagnosis of HHS is based on clinical presentation and laboratory tests. Key diagnostic criteria include high blood glucose levels, increased serum osmolarity, and absence of significant ketonemia.

Treatment

The primary treatment for HHS involves aggressive intravenous fluid replacement to correct dehydration, insulin therapy to reduce blood glucose levels, and electrolyte replacement to address imbalances. Monitoring and supportive care are crucial.

Prognosis

The prognosis of HHS varies depending on the timeliness of treatment and the presence of underlying conditions. Early intervention can significantly improve outcomes.

See Also

• Diabetic ketoacidosis
• Diabetes mellitus
• Hyperglycemia

External Links

• American Diabetes Association: Hyperosmolar Hyperglycemic State