TL;DR
Keeping Your Pet’s Heart Healthy
Heart disease in pets can be difficult to detect early, often showing up as subtle changes in behavior, energy, or breathing. Staying proactive — with regular veterinary visits, a balanced diet, and regular exercise — can make a meaningful difference in your pet’s long-term health and quality of life.
There are seemingly endless variations of the “I ♥ My Dog” bumper sticker — and as proud pet parents, many of us have pored over the options before choosing just the right one.
Heart disease in our pets, however, isn’t always quite as easy to spot — and unfortunately, it can stick around with serious consequences.
Unlike a scratched-up decal or a squeaky toy that’s seen better days, issues with your pet’s heart often develop quietly — and sometimes, subtly enough that even the most attentive owners can miss the early signs.
That’s why understanding what to look for — and what to do — can make all the difference.
“Sometimes it’s vague, sometimes it’s obvious,” says Dr. Erik Blumberg, DVM, CVA, with Doylestown Veterinary Hospital. “But monitoring for changes is really important, because that’s how we catch things.”
A Quiet Problem
Heart disease in pets isn’t always something that appears overnight — or with flashy warning signs. Some animals are born with congenital conditions, while others develop issues over time.
And because our pets age faster than we do, things can change quickly and quietly.
“Unfortunately for our pets, every year of their life… things happen a lot quicker than in humans,” Dr. Blumberg explains, emphasizing the importance of routine checkups.
Annual veterinary visits — and even semiannual visits for senior pets — allow veterinarians to listen for subtle clues like murmurs or rhythm changes that might otherwise go unnoticed.
Know Your Pet’s Risk
When it comes to heart health, genetics matter—big time.
Certain breeds are more prone to specific conditions. Cavalier King Charles Spaniels, for instance, are well known for mitral valve disease, Dr. Blumberg says — while Boxers, Dobermans, and even Golden Retrievers may face their own cardiac challenges.
But even if your pet is a lovable mix of everything, they’re not off the hook.
“Every patient is different,” Dr. Blumberg says. “You just need to get your wellness checks regularly… because things change.”
Signs Something Isn’t Right
Some symptoms of heart disease are obvious. Others? Not so much.
A sudden collapse followed by a quick recovery — known as syncope — is a huge red flag. But frequently, the signs are a lot less dramatic.
According to Dr. Blumberg, these may include:
- A slight drop in energy.
- A mild, persistent cough.
- Changes in breathing rate, particularly during sleep.
- Behavioral shifts or changes in routine.
“People should come in if they’re unsure,” Dr. Blumberg says. “If they know their pet’s a certain way and something’s changed — come in.”
For cats, that “something’s off” moment may be even harder to spot.
“Cats hide,” he adds. “If they’re hiding more, something’s up.”
The Weight of the Issue
If there’s one widespread threat to pet heart health, it’s obesity.
“In America, most pets are obese or overweight,” Dr. Blumberg says.
Walking our dogs twice daily can be a fantastic way to ward off weight gain.
“It’s super important. And it doesn’t have to be high intensity,” Dr. Blumberg notes. “Slow, steady, long walks—twice a day. Young or old. Everyone should be doing that. This helps to maintain muscle tone and overall shape, and it’s good for heart health, as well.”
Exercise helps—but it’s only part of the equation. Even active pets can struggle if they’re taking in too many calories.
“Diet is extremely important,” Dr. Blumberg explains. “If you overfeed your pet—even if they’re active… they’re still going to be overweight. It’s just too many calories. The body stores them.”
Dr. Blumberg recommends choosing foods that meet AAFCO standards, ensuring they are balanced and appropriate for your pet’s life stage.
But one dietary trend has raised some eyebrows in recent years.
“There is some controversy with grain-free diets,” he notes. Diets high in legumes — often used to replace grains — have been linked to certain types of cardiac disease.
The takeaway? Don’t guess when it comes to your pet’s nutrition. Consult your veterinarian to make sure what’s missing from the bowl isn’t being replaced with something potentially harmful.
Simple habits can go a long way:
- Daily walks (twice a day for dogs).
- Interactive play and personal engagement for cats.
- Using measuring cups for food.
- Limiting treats and table scraps.
And perhaps most importantly: remember that love doesn’t have to come in the form of a treat.
“Playing with a toy, going on a walk — these are ways of showing our affection, too.”
An Overlooked Connection
It turns out keeping your pet’s heart healthy may begin in their mouth. And not necessarily because of what they eat.
“There’s more research coming out about dental disease correlated with heart disease,” Dr. Blumberg says. “Pet parents should really stay on top of oral care.”
Bacteria that build up along the gum line can potentially enter the bloodstream — and while the connection is still being explored in animals, it’s well established in humans.
“It’s definitely something to think about,” he adds.
Routine dental care — including professional cleanings — isn’t just about fresh breath. It may play a role in protecting your pet’s heart, too.
When Things Get Serious
If heart disease is suspected, your veterinarian has several tools to investigate further.
X-rays can reveal changes in heart size, while blood tests — like NT-proBNP — can indicate stress on the heart.
From there, more advanced diagnostics like echocardiograms may be recommended.
Treatment varies depending on the condition but may include medications to:
- Improve heart contractions.
- Regulate rhythm.
- Reduce fluid buildup in the lungs.
In some cases, integrative approaches — including homeopathic care and Traditional Chinese Medicine practices like acupuncture and herbal therapies — may be used alongside conventional treatments to support overall heart health.
“The more diagnostics you can do… the better,” Dr. Blumberg says.
He also notes that financial considerations can play a role — which is why early planning, including pet insurance, can be beneficial.
“It can be daunting just knowing the cost of a cardiologist’s workup and getting an echocardiogram or an ultrasound. It can be a lot of money, and that can be limiting… When I see these puppies, I’m always telling their pet parents: ‘Get pet insurance early.’”
Staying Ahead of It All
At the end of the day, heart health comes down to awareness and action.
“I think a lot of people wait too long,” Dr. Blumberg says. “Come in when you notice signs of discomfort. When you notice them slowing down or if they take longer to settle. If they take longer to get up. When their walks aren’t as long or their energy is decreased. Definitely come in for a visit.”
“Don’t wait until your pets can’t even get up, because sometimes chronic illnesses take chronic time,” he continues.
When it comes to your pet’s heart, early intervention isn’t just helpful — it can be life-changing.
“The sooner you can act on something,” he adds, “the better your chance for healthier outcomes.”
***
FAQs
How do I know if my pet has heart problems?
Look for changes like coughing, fatigue, faster breathing, or decreased activity. Even subtle shifts can be important.
Are certain breeds more at risk?
Yes. Cavaliers, Boxers, Dobermans, and Golden Retrievers are among those more prone to heart conditions, but any pet can be affected.
Can diet really impact heart health?
Absolutely. Balanced nutrition is key. Some grain-free diets high in legumes have been linked to heart issues, so consult with your veterinarian before making any dietary changes.
How often should my pet see the vet for heart health?
Regular checkups should be scheduled at least once a year — and every six months for senior pets when possible.
Is heart disease treatable in pets?
Many conditions can be managed with medication and monitoring, especially when caught early.
