
Depending on the final diagnosis, your dog will probably be treated as an outpatient. Only if there are complications severe enough to require treatment in a hospital setting will your veterinarian recommend inpatient care. A low-fat diet with high-quality protein will need to be put in place, and your veterinarian may also prescribe supplements to increase fat and calorie intake.
Surgical intervention is rare. However, if there is a lymphatic blockage, your veterinarian may recommend surgery to remove the cause of the blockage. Also, if the sac around the heart is inflamed and thickened, your doctor may recommend surgery to repair the sac.
Prescribed medications may include steroids to reduce inflammation, and antibiotics, to either treat an underlying infection or to prevent an opportunistic infection from taking hold during the course of treatment.
You will need to monitor your dog's body weight, and your veterinarian will set up a schedule to see the dog from time to time to test for protein levels and to observe recurrent clinical signs, such as fluid build-up. The severity of the disease will determine how often you will need to take your dog back for follow-up treatments.
The long-term prognosis for lymphangiectasia is guarded. Some dogs fail to respond to treatment. However, remissions of several months to more than two years can be achieved in some patients, but this can be entirely dependent on any underlying conditions, and the severity of the disease itself.