Potential Dwarfism - Congenital Heart Disease
I have been in touch with my puppies littermate's owner. They were born on May 2nd and are about 5.5 months old now.
I was told when I picked up my puppy I was told that her sister had a heart murmur. Later at the puppies' new family, they learned that she had a heart murmur still at roughly 4 months old. This week Diamond's owner took her to see a specialist to have an electrocardiogram done. The results were not good. She was diagnosed with ventricular septal defect, right to left PDA, severe LV dialation, mild mitral valve dysplasia, persistent left cranial vena cava, pulmonary hypertension, and ventricular arrhythmias.
She has a current weight of 27.6 pounds. In comparison, her sister who is my pup is 42~ lbs.
My pup has grown a significant amount of adult fur; whereas, her sister shows nothing but puppy fluff.
So my puppies littermate has sever congenital heart defects, is very undersized, has grown none of her adult coat, shows low levels of stamina, and has trouble with a urinary track infection.
My heart goes out to my puppies sister. Has anyone ever had experience with identifying dwarfism? Her outlook is extremely poor. I feel that if she does have dwarfism then the breeder needs to know about it.
Thanks in advance for any information. I know that this is not my puppy, but I feel invested in her wellbeing regardless. I want to help support her owner if I can.