Hypertension – a silent killer

​by Dr Megan

Pictures (L-R) a blood pressure monitor, a cat having its blood pressure checked, a cat leg with a blood pressure cuff attached

Have you had your blood pressure checked? For the humans in your household, the answer would be of course, yes. But what about your furry family members? Particularly in cats, high blood pressure or hypertension is a common disease that is easy to overlook. But this can result in catastrophic consequences such as sudden blindness, seizures, kidney damage or heart disease.

Cats with pre-exisiting kidney or thyroid disease are particularly prone to developing hypertension and dogs aren’t exempt from the problem.

Fortunately, with a little bit of cooperation, diagnosis is easy. A blood pressure cuff (similar to ours, just quite a bit smaller!) is put on the leg or tail and either using an electronic monitor or listening to the blood flow, the pressure can be measured.
We use several different devices to measure the blood pressure, as with each style their accuracy can depend on the size of the patient and how stressed they are. Oscillometric non-invasive blood pressure monitoring machines are quiet and easy but can be a little temperamental (they do use a computer after all). Doppler monitors can be a bit noisy but allow us to hear the heart beat at the same time. We use a combination of monitors for tracking our patients’ blood pressure both as outpatients or when they are undergoing anaesthesia.
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If we do detect that a pet has hypertension, the good news is that there are several medications that we can use to help control it and keep your pet safe.