Feline Hypertension: Welfare Through Blood Pressure Control

Hypertension in cats causes sudden blindness, neurological signs, and organ damage — blood pressure monitoring and treatment dramatically improves welfare outcomes.

Key Facts

• Hypertension affects approximately 20-30% of cats with chronic kidney disease or hyperthyroidism
• Blood pressure above 180 mmHg causes acute retinal detachment and sudden irreversible blindness
• Neurological signs from hypertensive encephalopathy include disorientation, seizures, and head pressing
• Amlodipine is the first-line antihypertensive in cats, typically very effective at standard doses
• Early detection through routine blood pressure measurement at every senior cat visit saves sight and organs

Welfare Considerations

Feline hypertension is a welfare emergency waiting to happen in untreated at-risk cats. The sudden onset of blindness from hypertensive retinal detachment is catastrophic for both the cat and the owner — the cat immediately loses spatial orientation, shows distress and confusion, and may never regain vision even with prompt treatment. Neurological signs from hypertensive crisis including seizures and disorientation are distressing and life-threatening. Welfare-focused hypertension management requires blood pressure screening of all senior cats and those with known predisposing conditions, prompt antihypertensive treatment when values exceed 180 mmHg (or lower in at-risk cats), and regular monitoring to maintain therapeutic blood pressure control.

What You Can Do

• Request blood pressure measurement at every annual veterinary visit for cats over 7 years
• Ensure cats with chronic kidney disease or hyperthyroidism have blood pressure monitored every 3-6 months
• Administer amlodipine as prescribed consistently — missed doses reduce blood pressure protection
• Recognize hypertensive emergency signs: sudden blindness, dilated pupils, seizures, disorientation
• Monitor fundic (retinal) health at each veterinary visit in hypertensive cats