Hypertension in Cats: Welfare Management in Senior Cats 2026

Hypertension is common in older cats and can cause sudden, severe welfare emergencies including acute blindness if not managed proactively.

Key Facts

Feline hypertension is defined as blood pressure consistently above 160 mmHg systolic
It affects around 13% of cats over 9 years of age and 20% of cats over 14 years
Most cases are secondary to chronic kidney disease, hyperthyroidism, or other conditions
Hypertensive retinopathy causing sudden blindness is the most dramatic acute welfare presentation
Treatment with amlodipine is highly effective and can restore vision if started promptly after onset of blindness

Welfare Considerations

Feline hypertension is a silent condition that causes severe welfare emergencies when target organ damage occurs. Sudden blindness from retinal detachment is often the first sign owners notice, occurring rapidly and causing acute distress. Cats that were sighted an hour ago and are suddenly blind experience profound disorientation and fear. Blood pressure measurement at every senior cat health check allows pre-emptive treatment before target organ damage occurs. The dramatic reversibility of hypertensive retinal detachment with prompt treatment - many cats regain vision if amlodipine is started within 24-48 hours - means early recognition and treatment are critical welfare interventions.

What You Can Do

Ask your vet to measure blood pressure at every health check for cats over 7 years old
Seek emergency veterinary care if your cat suddenly shows signs of blindness or disorientation
Treat any underlying conditions such as kidney disease or hyperthyroidism that drive hypertension
Monitor blood pressure response to treatment at 1 week and 1 month after starting medication