When I first rescued Creamsicle who's a CH baby and I had never heard of CH, my regular vet was out of town and his associate recommended that I euthanize her. He said that because she was so tiny, he wouldn't be able to inject her vein and that he'd have to put a needle in her heart and that it would be painful. I was so shocked by that statement that I told him not to lay a finger on her, that I was coming to get her and I stayed on my cell phone the entire time w/the vet clinic during my ride there to make sure they didn't euthanize her. If these cats died in that way, then I'm truly sorry and can only comfort myself and others w/knowing that they are now illness -and -pain -free. I just wish they could have/would have tried to save some of them.