I'm afraid that I can't offer much more assistance for Bella than what you have already done, without being able to see or examine her. If she has not had a trans-tracheal wash, that may be one test that can help determine the type of cells that are present in her lungs, and if the x-rays have not been evaluated by a specialist, that is another possibility, as your veterinarian should be able to send those x-rays to be evaluated further.
Little is known about the origin of the Russian Blue breed, though stories are legendary. Many believe the Russian Blue is a natural breed originating from the Archangel Isles in northern Russia, where the long winters developed a cat with a dense, plush coat. Rumors also abound that the Russian Blue breed descended from the cats kept by the Russian Czars. Assuming the Russian Blue did migrate from northern Russia, it was likely via ship to England and northern Europe in the mid 1860s.
This is the most frequent email we get from exotic cat owners: “Hey, I’m really in over my head here! I got this thing as an infant. I bottle-raised it. Everything was great. But I can no longer handle this cat. I cannot housebreak it. It tries to attack people. I just don’t know what to do with it.'” This was an actual quote about a Serval, but we have had hundreds of similar letters about every kind of exotic cat.
Treatment for congestive heart failure is aimed at managing the medical cause of the condition as well as relieving symptoms associated with fluid build up in the lungs, pleural space, and abdomen. In a few situations, once the cause has been treated (such as hyperthyroidism), the heart may recover, however, most cases of CHF are irreversible, but it may be managed to slow down the progress. Stabilising your cat if he has fluid build up in the lungs or pleural cavity, relieving symptoms and this may include:
While oxygen is being transferred to the red blood cells, carbon dioxide is transferred from the red blood cells into the lungs. It is then carried out through the nose through a process referred to as expiration. This cyclic motion of breathing is controlled by the respiratory center in the brain and nerves in the chest. Diseases that affect the respiratory system, or the respiratory center in the brain, can bring about breathing difficulties. Troubled or labored breathing is medically referred to as dyspnea, and excessively rapid breathing is medically referred to as tachypnea (also, polypnea).
One of the Blue Russian's vulnerabilities is its tendency to be startled easily. They also have a natural proclivity to shyness and nervousness around strangers and in strange environments. If it is true that this breed was once the target of fur hunters (as some say), this would easily account for their caution and quick footedness. They would have had to move fast at the slightest sound to quite literally preserve their own skins.
There are various different causes for rapid breathing which may include infections, pain, heart disorders, dehydration among other causes; a cat’s respiration should be below 30 breaths per minute when at rest but if it is significantly above this rate at rest I would suggest visiting your Veterinarian for an examination to determine a cause. Regards Dr Callum Turner DVM