Well, we went to UC Davis vet school on Monday to have Riley's heart murmur determined. They were just great over there, so thorough and kind. They examined him and then suggested doing an ultrasound, as his murmur is on the left side and rather loud. We definitely wanted them to do the work up and 2 hours later we finally had an answer.
Riley does indeed have an innocent flow murmur! They assured us that his heart is healthy and so are his valves and vessels, but he has the murmur because of the difference in growing rates of his heart and his aorta. So, it results in a "puppy murmur", but it won't affect his health.
We were so relieved, I can't even tell you. We were prepared to hear the worst and instead we heard the best (under the circumstances). Now we know our little guy will be with us for a long time to come!
My advice to anyone out there who has any health problems with their dog is this, if you are not satisfied with the answers you are being given, then do not give up seeking the right people to answer you. Had I known before, I would have gone to UC Davis a long time ago and I would have had my answers 2 months ago. Instead, I waited and agonized not knowing if my puppy was healthy. Not worth it! I highly recommend going to the place you believe to be the best and get the information that you need! Now I know i'll be the Cavalier owner I always wanted to be and I have my little Riley for good. We're so happy
BTW, Karlin I too love the new emoticons and i'm so glad the site is up and running again. Thank you for your hard work. But i just couldn't wait to tell the group my good news, and now i finally can.