Love my Cavaliers
Well-known member
I don't know if this will add anything to the conversation, but I have an almost 9 year old neutered male Blenheim who has no syrinxes. He had an MRI in December for a disc problem and his neurologist found no evidence of SM. I have sent a copy of his MRI on a disc to Clare Rusbridge. I have also sent his DNA sample to Penny Knowler in Canada. He is the only one of my dogs who is from a backyard breeder. I never got papers because she drove the puppy to me and said she had forgotten them and would mail them. Eight years later and I still haven't gotten them even after repeated e-mails and phone calls. She just wanted my money to keep churning out puppies.
My 2 year old has a hear murmur and second degree A-V block and he is under the care of a cardiologist, but is stable and on no meds at the time. He had an MRI to see if his weakness could be neurologic in origin vs cardiac. He has the malformation but no syrinxes. My 7 year old had decompression surgery 18 months ago for severe and advanced SM. She is maintained on daily prednisone right now and is doing fair. My 6 year old (and half-sister to my 7 year old), is doing fine, but has not been MRI'd since there is no reason to put an asymptomatic spayed female under anesthesia for an MRI.
These three are all from the same breeder who was devastated by the news of Oz's heart murmur (diagnosed at 5 months of age) and Riley's SM (not diagnosed until she was almost 6). The breeder heart tests with a cardiologist before breeding, but does not MRI. She said she only knows of one other of her dogs with SM - but that is just all she is aware of. In defense of breeders, so many people don't keep in touch with their breeders and therefore breeders may not know the extent of SM in their lines. Mine was so upset with my news that she said she was going to stop breeding and she had Oz's mother spayed. Just my two cents worth for this discussion.
My 2 year old has a hear murmur and second degree A-V block and he is under the care of a cardiologist, but is stable and on no meds at the time. He had an MRI to see if his weakness could be neurologic in origin vs cardiac. He has the malformation but no syrinxes. My 7 year old had decompression surgery 18 months ago for severe and advanced SM. She is maintained on daily prednisone right now and is doing fair. My 6 year old (and half-sister to my 7 year old), is doing fine, but has not been MRI'd since there is no reason to put an asymptomatic spayed female under anesthesia for an MRI.
These three are all from the same breeder who was devastated by the news of Oz's heart murmur (diagnosed at 5 months of age) and Riley's SM (not diagnosed until she was almost 6). The breeder heart tests with a cardiologist before breeding, but does not MRI. She said she only knows of one other of her dogs with SM - but that is just all she is aware of. In defense of breeders, so many people don't keep in touch with their breeders and therefore breeders may not know the extent of SM in their lines. Mine was so upset with my news that she said she was going to stop breeding and she had Oz's mother spayed. Just my two cents worth for this discussion.