The good news is that Ezri's heart murmur has been reduced to a gallup rhythm. The really bad news is that it is not an infection causing this condition, as we had hoped, but rather the early stages of Hypertrophic Cardiomyopathy (IVS mainly), a progressive disease that will eventually take her life. One of Ezri's heart valves is slowly but surely thickening, and as it gets worse, it will be more difficult for her heart to pump enough blood. This leads to complications like blood clots, heart failure, stroke, and so forth.
Kathryn and I are pretty devastated. Not the least of which is because Cardiomyopathy of this type is most often a hereditary condition, and Lila, one of our other cats, is Ezri's litter mate. We'll be taking her to the vet soon too, to see if she is suffering from the same condition. So we may lose two of our cats from this disease.
Hypertrophic Cardiomyopathy is known in some quarters as "the silent killer," because cats who suffer from it can show no symptoms for a long time, and then just suddenly die. So, it's really a very terrifying thing to be confronted with. We can only hope by finding the disease at such an early stage, we can control it for a period of years, rather than months. But Ezri's chances of living a long life are now severely diminished.
Ezri still has a good, strong appetite, and doesn't seem lethargic at all, so those are indicators, I hope, that she's up for the long fight and will respond to the treatment (new medicine which will help her heart relax...). Unfortunately, Ezri is showing some signs of depression...she's been overgrooming a section of her tummy, and that's also a sign of the disease, I think; an indicator that she may not be getting enough blood.
I'm depressed as hell too...