I am so sorry to hear these diagnoses but please don't count them out yet. My first Yorkie, Indie was diagnosed with LP at about 10 weeks old. I guess it was not severe as it only bothered her every now and then. We would be walking along and all of a sudden Indie would lift that leg and walk on 3 legs for a minute or so, I guess she was lucky because she was overweight for a few years as well.
Indie was also diagnosed woth a heart murmur at 10 weeks too and then much later with CHF. I was devastated at that news and thought this was it. In fact our Vet did not want to send us home with 100 pills!!! I thought omg she isn't going to live for even 50 days?!?!? I convinced him that I wanted the full bottle of 100 pills and cried the whole way through paying the bill and driving home. Indie lived 3 years and thousands of pills later. I honestly believe that my unwillingness to let her go coupled with an amazing Vet team who listened to me when I said she wasn't going to leave me yet and then found the right med cocktail for her lengthened her days. Of course I wish she was still here every minute of every day, but I am thankful she died peacefully in her sleep in her little bed once her heart got to big for her little body.
The meds Indie responded best to were Vetmedin, and then one for fluid retention, and near the end one to help her bronchial tubes stay wide open. I can find the names of those if you like but of course all dogs are different and what works for one may not work for the other.
I pray that both your babies have treatable cases of both LP and the CHF.
