Heartworm signs in dogs tend to show up when the worm reaches maturity, typically around 6 months post-implantation. This preventable condition starts when a mosquito bites an animal that's already infected with heartworm.
Signs of heartworm disease may include a mild persistent cough, reluctance to exercise, fatigue after moderate activity, decreased appetite, and weight loss. As heartworm disease progresses, pets may develop heart failure and the appearance of a swollen belly due to excess fluid in the abdomen.
When the infected mosquito bites another dog, the mosquito spreads the infective larvae to the dog through the bite wound. In the newly infected dog, it takes about 6 to 7 months for the infective larvae to mature into adult heartworms.
"Adult heartworms are found in the heart, pulmonary artery and adjacent large blood vessels of infected dogs." Adult heartworms may live up to five years.
Heartworm disease in dogs is known as a silent killer, because it can take months before your dog shows symptoms. In the early stages of infection, most dogs show little to no symptoms at all, and the more the disease progresses, the more likely apparent symptoms will develop.
Myth #3: If my pet has heartworms, I will see them in her feces. Although many worm types, such as roundworms and tiny hookworms, are shed in your pet's feces, heartworms do not live in the gastrointestinal (GI) tract, and are not found in feces.
Dogs with heartworm disease can live high-quality lives as long as they are given appropriate care. After completing treatment and following your veterinarian's recommenda- tions on heartworm disease testing and prevention, the chances of any long-term effects are very low.
Heartworm disease is a common disease in dogs, cats, and ferrets that is preventable and treatable (if caught early).
Dogs are typically heartworm tested prior to transport, but due to the life cycle of the heartworm, there is a window where dogs may test negative but still have heartworms. Heartworm in these dogs may go undetected for several months or more, allowing them to serve as a source of infection for other dogs.
No one wants to hear that their dog has heartworm, but the good news is that most infected dogs can be successfully treated. The goal is to first stabilize your dog if he is showing signs of disease, then kill all adult and immature worms while keeping the side effects of treatment to a minimum.
Dogs become infected with heartworms through mosquito bites, so if you live in a climate with cold late autumns and winters, why worry about giving your dog preventive medication every single month of the year?
“Goose Honk” Cough
The first and most obvious symptom of heartworm in dogs is the persistent cough, which is often likened to the sound of a goose hoking. This goose honk cough occurs whether the dog has been active or not, but it is more common after a dog has just exerted himself in some way.
Is heartworm painful? - Animal Hospital of Statesville. It's not painful, per se, but they feel sick, uncomfortable, and they're likely having difficulty breathing. They're not perfusing very well, so they don't feel well.
A complication of heartworm infection, known as caval syndrome, leads to shock-like symptoms and sudden death.
Unlike intestinal parasites, however, which, once killed, can simply be passed in the animal's stool, heartworms, once dead, do not have an easy way to be eliminated from the body. The dog's immune system must break down the dead worms, an elimination process which is very effective but does take some time.
Not all dogs with heartworm disease develop into stage 4. But if it is left untreated, heartworm disease will progress and damage the dog's heart, lungs, liver, and kidneys, eventually causing death.
Prognosis: heartworm treatment success rates
With the three-dose adulticide protocol described above, in conjunction with doxycycline and macrocyclic lactones as recommended by the American Heartworm Society, 98% of dogs will be cleared of heartworm infection.
Most of the monthly heartworm medicines have a safety factor of at least 15 days of protection if a dose is missed. This means that if you're just a week or two late, your pet is likely still within that window of protection and would be unlikely to become infected during that time.
Myth: Heartworm disease is contagious for pets.
Truth: You should be concerned if we diagnose one of your pets with heartworm disease, but you do not need to quarantine your infected pet. Heartworms must go through a mosquito to develop into adults, so heartworm-positive pets are safe to be around.
Are Heartworms Contagious to Other Dogs or People? Since the mosquito is needed to carry the microfilariae, heartworm disease is not contagious from one dog to another dog. People also cannot get heartworms from dogs. Dogs and humans can only get heartworms from infected mosquitos.
Not every aspiring pet owner is equipped to provide the extra care a special-needs pet requires; however, with proper treatment, heartworm-positive pets can be excellent candidates for adoption.
Pets infected by heartworm develop pathology, even when only a few worms are present. And while treatment can eliminate an infection, it cannot necessarily reverse the resultant damage. Routine, persistent prevention represents the only approach to avoiding the disease caused by heartworms.
Average Cost of Treatment. The average cost of heartworm treatment for dogs is often around $1,000. However, it can range from $500 to $1,100 or even more depending mainly on the size of your dog, veterinary bills, and the stage of the disease.
Finally, frequent vomiting usually goes along with heartworms. Dogs who cough often may cause themselves to vomit as a result of their extensive coughing. Some dogs may feel nauseated from their heartworms as well, and may vomit often just because they feel so sick with the disease.