Anxiety and CATS’ bladders

When you think about it, a behaviour change is the first thing that gives you a clue that all is not well with your feline friend. Limping, not eating, fussier, quieter or becoming clingier or more distant. All these are behavioural signs, and your cat uses them to indicate what or where the problem is. Sometimes there is an obvious swelling or painful area. Or there is a change in urine, faeces or vomiting. However, cats most often indicate a problem by doing something different to usual. That is, by unusual behaviour.

We have changed cats’ environments substantially over the last 5,000 years since they domesticated us, and they have adapted by changing a great deal of their instinctive behaviour. Wild cats avoid humans, totally, and the true wild cats (Felis sylvestris sylvestris) cannot be tamed just by raising them in a human household. Our moggies have self-selected over the generations to tolerate, and now even seek out, human company. However, when something goes wrong for a cat, its ‘default emotion’ is fear. And if you fear something that might happen (ie a future event), that is the definition of anxiety. Cats are smart enough to need anti-depressants (I prefer to call it anti-anxiety medication) so it is not surprising to find that in this relatively feline-unfriendly world in which cats find themselves (no mice, no desert sand, too many cats and way too much noise) that many get stressed and anxious. And their behaviour changes.

One of the most noticeable changes is when a cat ‘internalises’ its fears and ends up with cystitis. I call it the feline migraine. Felines are a very conservative species – they conserve water well (make very strong urine), conserve energy (that is why they sleep – they are not just being bone idle! And why it is so hard to get them to lose weight!) and use their elimination products for a second purpose – communication. Many of you have experienced the fact that they use urine (and sometimes faeces) for messaging. You could even call it pee-mail!

Cats use pheromones and fatty acids in their urine to give other cats information, mainly about their time of arrival or departure, and sexual status. Cat urine actually DOES SMELL WORSE the longer it is outside of the cat – the amino acids breakdown to make the urine smellier (and the fatty acids make it very sticky) at a constant rate. This then acts as a time marker and the message is usually ‘I was here at 4pm today and I don’t want to meet another cat here tomorrow’. This is very effective where there are few cats in a large area like a desert. However, in the crowded urban environment, it may prevent another cat from peeing at their appointed time and location.

Cats are creatures of habit, and to disrupt that routine is very stressful – so a cat’s bladder may go into spasm, sometimes badly enough to rupture small blood vessels and bleed into the urine making it red. For the cat, this is a bit like the ‘stress headaches’ we humans suffer when we get fraught and overwrought. The stress can also prevent the bladder from filling, so the cat is going to urinate more frequently and in different places, desperately looking for somewhere that it finds comfortable to relieve itself. After all, to a cat’s mind, urine cannot itself hurt, so it must be the place they are peeing that is causing the hurt. Hence they look for another place to pee. This is often the start of the difficult syndrome of a cat ‘peeing everywhere around the house’. If we pity the cat rather than punish it we can help resolve their problem and pain quickly and with less mess for the owner. Try to remember – peeing SOLVES a cat’s problem: there is no moral issue or comment. Peeing IS the cat’s coping mechanism. To solve the owner’s problem, however, we are going to have to understand the problem from the cat’s point of view and make some changes to the environment.

Other coping mechanisms for cats include hiding, running from aggressors (especially cats), chasing other animals (humans, dogs and other cats again), yowling for attention and hissing to prevent unwanted attention. Remember, these are coping mechanisms. It does not mean the cat is uncomfortable in its environment. The underlying triggers for any of these behaviours are as varied as the personalities of the cats and the environments their owners put them in. But they are nearly all based in anxiety. If your cat is showing stress by using any of these coping mechanisms, the two things to remember are: it is unlikely that the cat will solve the problem on its own so it will get worse, and the earlier the intervention the more likely the treatment will resolve the problem. Once the activity is a habit, it will take much longer and need much more medication and behavioural intervention to resolve it. Act fast and restore your kitty to emotional equilibrium - talk to us now.

Kidneys are a Cat’s Weak Point

Where humans have heart attacks and get pneumonia, cats get kidney failure. 50 percent of old cats die of kidney failure, and the other half die of cancer or heart problems (and a few other rare things).

The good news is that over the last few years there has been considerable research and progress in the area of feline renal failure (cat kidney problems). Lo and behold it turns out that cats’ kidneys are NOT like those of dogs, rats or humans which explains why previous attempts at treating cat kidney failure was pretty unsuccessful. So what happens these days?

Cats have kept some metabolic secrets from us for some time, and these are now being unravelled. The main one is that in many cats, as the kidneys become damaged, their blood pressure increases - just like ours. The trick has always been how to measure blood pressure because cat arteries are so small. At the Cat Clinic we use a sophisticated Doppler Flow Ultrasonic Detector that picks up arterial wall movement and turns it into noise. This means we can read your cat’s blood pressure measurement with a cuff just like in humans (well, babies anyway!). Treating the high blood pressure keeps the kidneys functioning for longer.

In addition we test your cat’s urine to see whether the kidneys are filtering the toxic wastes properly by checking the urine specific gravity with a refractometer and the protein, blood and other components using the same dipsticks that are used on humans. Interestingly, cat urine has a couple of special aspects. One is that normal cat urine is much more concentrated than human urine, as befits an animal that evolved in the desert. And the other is that there are bacteriostatic components in normal cat urine that prevent bacteria growing once the urine is formed. This makes it difficult to culture for bacteria unless the urine is very diluted as it is in the later stages of kidney failure. However, we can check the sediment of the urine to see if there are any bacteria visibly lurking there and treat with antibiotics as necessary. A finding of glucose in the urine is enormously significant as cats can get diabetes, the same as humans.

And finally we can check the blood test values of toxic waste products in the cat’s system by checking your cat’s blood levels of urea, creatinine and phosphate. These values give us a good idea about how sick a cat feels from its lack of kidney function.

BUT CAN I DO ANYTHING TO HELP MY CAT IF YOU DO FIND A KIDNEY PROBLEM?

This is the exciting because yes now we can. There are drugs to control high blood pressure and also to improve blood flow through the kidneys. And, one of the most effective treatments is a change of diet. The newer kidney diets are greatly improved and much more palatable to cats. The food helps cats feel better while preserving remaining kidney function.

The ultimate assistance comes from a kidney transplant (yes, it can be done in Brisbane) however, if we can detect kidney problems early, then we can help the cat use what it has more effectively.

YOU CAN HELP YOUR CAT A GREAT DEAL MORE BY FINDING OUT EARLY WHETHER THERE IS A PROBLEM, AND THEN PRESERVE THE KIDNEY THEY ALREADY HAVE!

Dr Kim Kendall - Senior Cat Veterinarian since 1992

Chatswood Cat Central
Ph: 02 9417 6613
329 Penshurst St. Willoughby 2068

www.catclinic.com.au

© Kim Kendall BVSC - May be used with attribution