Although there are fewer mosquitoes in the winter, there is still a risk that your pet could get heartworms if you stop giving heartworm prevention medication during this season. That's one reason veterinarians strongly recommend pets receive heartworm prevention medication year-round.
Yes, your dog can get heartworms multiple times. For this reason, lifetime heartworm disease prevention can be important. It is highly recommended that you talk with your veterinarian about heartworm disease prevention before making a determination about what is best for your dog.
The American Heartworm Society recommends that puppies and kittens be started on a heartworm preventive as early as the product label allows, and no later than 8 weeks of age.
Heartworm disease is a very serious parasitic disease that has the potential to be fatal for your dog if he is not treated quickly. This parasite is a worm that can grow up to a foot long and lives inside the heart, lungs, and associated blood vessels of an infected animal where it will reproduce over and over.
Heartworm treatment is a process carried out through 4-6 months. During heartworm treatment the patient must stay confined while the heartworms are dying off to prevent embolisms and other health risks. We take necessary steps in assuring that your pet is healthy and stable before going through heartworm treatment.
The American Heartworm Society recommends administering a heartworm preventive medication 12 months a year for the life of your pet. Whether the preventive is given orally, topically, or by injection, all approved heartworm preven- tives work to keep your dog from developing heartworm disease.
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.
If you forget a month of preventative, make sure to give the next 2 doses on time to "catch up" for that missed month. If you miss several months in a row, you should give your vet a call for advice on when to plan for the next heartworm test and how to get started back on preventatives.
Myth #7: My indoor pet does not need heartworm prevention
All pets should receive heartworm prevention, whether they venture outside, or not. Mosquitoes certainly find their way inside—according to the American Heartworm Society, 25% of cats diagnosed with heartworm disease are indoor-only pets.
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.
As winter descends upon New England in full force, more and more dog owners ask us if we recommend continuing heartworm prevention through the winter months. The short answer is yes. The American Heartworm Society recommends year-round heartworm prevention, and we agree.
If you missed less than 6 months of prevention we suggest you start giving the heartworm preventative immediately. Bring your dog in for a heartworm test 6 months from the first missed dose.
Heartworm Prevention Is the Best Treatment
The American Heartworm Society recommends that you “think 12.” Have your dog tested for heartworms every 12 months and provide 12 months of preventative care.
One of the most common questions heard by our veterinarians during an annual wellness exam is, “Does my pet really need heartworm prevention?” To put it simply: yes! Even if your pet is considered “indoors-only,” all cats and dogs should be on a heartworm prevention medication.
If a dose is missed, give SIMPARICA TRIO immediately and resume monthly dosing. When replacing a monthly heartworm preventive product, SIMPARICA TRIO should be given within one month of the last dose of the former medication.
Heartworm Disease Causes Lifelong Damage.
The states with the highest numbers of incidences of heartworm disease in dogs were Mississippi, Louisiana, South Carolina, Arkansas, and Alabama, all states known for their humid climates.
Your dog won't be able to be active after his heartworm treatment for at least a few months. “The dead heartworms take some time to be broken down by the dog's immune system,” Dr. Marteney said. If the dead worms are still intact, they can cause major issues if your dog's heart rate becomes elevated.
The dog may be required to stay at the hospital for 3-4 days. After treatment, the adult worms die and are carried by the blood to the lungs where they lodge in small blood vessels. There they decompose and are absorbed by the body over a period of several months.
Under ideal conditions, the entire life cycle (microfilaria to mature adult) takes 184 to 210 days. Because only mature adults are capable of reproduction, dogs do not typically become microfilaremic for 6 to 8 months after initial infection. Adult heartworms typically live for up to 5 years in dogs.
However, due to the heartworm life-cycle, it is likely that giving the medication every 45 to 60 days, rather than every 30 days, will allow immature heartworms to develop into adult heartworms. In other words, heartworm prevention medication is not effective when given every 45 to 60 days.
Most dogs can be safely leash-walked during the treatment recovery period and providing appropriate chew toys can help relieve some of that stored up physical energy.
April is Heartworm Prevention Month, and there are important reasons veterinarians across the United States promote heartworm prevention this month and throughout the year. While the risk of heartworm is more prevalent in spring and summer when there are more mosquitos, a pet can get heartworm any time of year.
We recommend starting your pet on heartworm medication June 1st and continuing until November 1st. In some areas such as the Southern USA, heartworm prevention is necessary year-round. This is very important to remember if you are travelling to a southern location in the winter.