Web page content
Hyperglycaemic, hyperosmolar, non-ketotic (HHNK) syndrome
Hyperglycaemic, hyperosmolar non-ketotic (HHNK) syndrome is an uncommon complication of untreated
diabetes mellitus. It is an emergency and the prognosis for recovery is poor.
HHNK syndrome is characterized by extremely high blood glucose levels. The brain may be affected
resulting in the diabetic cat lapsing into a coma.
Diagnosis
Before HHNK syndrome develops, typical clinical signs of diabetes mellitus are seen. The diabetic cat
then becomes progressively weaker, stops eating, and lethargic and drinks less. The cat becomes
severely dehydrated,
depressed and eventually lapses into a coma.
Treatment
Your veterinary surgeon will administer intravenous fluids and attempt to lower the blood glucose
levels.
Prognosis
The prognosis for full recovery is extremely poor. Thankfully though, this condition is very rare.