Does the age of a dog have anything to do with better success in treatment of heartworm disease?
answer The age of the dog is just one factor to consider when treating a dog for heartworms. Your veterinarian may also consider overall health, severity of clinical signs and laboratory test results. Older dogs with long-term heartworm infections may have damaged lungs, hearts, livers, and kidneys that could potentially complicate heartworm treatment. Fortunately, if a dog has moderately healthy organs and is exercise-restricted, he should have a successful treatment regardless of age.