Heart disease in pets ranges from manageable murmurs to severe conditions requiring careful ongoing treatment. Our cardiology service combines advanced diagnostic equipment with clinical expertise to diagnose cardiac conditions accurately and manage them effectively over time.
We detect valve disease, arrhythmias, cardiomyopathy, and congenital defects affecting dogs and cats. Early detection matters enormously – many cardiac conditions progress slowly when properly managed, but deteriorate rapidly when left unaddressed or inadequately treated.
In-House Diagnostics:
Collaborative External Specialist Model:
For complex cardiac cases, Vet HQ will consult a cardiologist who visits our practice on a regular basis. This allows your pet to receive a board-certified cardiology evaluation in familiar surroundings, with our team present throughout. You maintain continuity with veterinarians who understand your pet’s complete medical history, supported by external specialist expertise when it improves outcomes.
Degenerative Valve Disease (Mitral Valve Disease):
The most common cardiac condition in dogs, particularly small breeds and Cavalier King Charles Spaniels. Causes progressive heart murmurs as valve leaflets thicken and fail to close completely. Many dogs live comfortably for years with appropriate medication and monitoring.
Dilated Cardiomyopathy:
Heart muscle weakening affecting large breed dogs. Causes reduced pumping efficiency and often arrhythmias. Requires careful medication management and regular monitoring.
Hypertrophic Cardiomyopathy:
Heart muscle thickening, most common in cats. Can cause sudden collapse or breathing difficulty. Requires specific medications and stress minimisation.
Arrhythmias:
Abnormal heart rhythms ranging from benign to life-threatening. ECG monitoring identifies the specific arrhythmia type, guiding appropriate treatment decisions.
Heart disease rarely resolves—it requires ongoing management including appropriate medications, regular monitoring, lifestyle modifications, and honest conversations about prognosis and quality of life.
What Long-Term Management Involves:
Some cardiac patients live comfortably for years with appropriate treatment. Others progress more rapidly despite intervention. Prognosis depends on:
We provide realistic prognostic information at diagnosis and update it as we monitor your pet’s response to treatment. This allows you to make informed decisions about care intensity and quality of life considerations throughout your pet’s disease course.
Contact us immediately if your pet experiences:
These symptoms may indicate heart failure decompensation or serious arrhythmias requiring immediate intervention. During our opening hours (until 7pm, 7 days a week), we can provide an urgent assessment. After hours, we coordinate transfer to emergency services equipped for critical cardiac care.
For more information on Cardiology services, contact Vet HQ Darlinghurst or Double Bay.
We provide comprehensive care for every aspect of your pet’s health and happiness. From routine check-ups and vaccinations to advanced diagnostics, surgery and palliative care, our experienced team delivers thoughtful, high-quality care in-house, supporting your pet through every stage of life.
We have been bringing our pets to Vet Hq in Darlinghurst for almost a decade because, simply, they are the best! Dr Jess Green treats all her patients with thoroughness, compassion and true care. The entire nursing team are also spectacular and we will not be taking our pets anywhere else as long as Vet Hq is around.
The team at Vet HQ Darlinghurst are amazing! Everyone is so friendly and caring, and they really take the time to make sure your pet feels comfortable. The vets explain things clearly and you can tell they truly love animals. The clinic is clean and welcoming, and I always feel my pet is in the best hands.
Best Vet Clinic! Oh My Gosh, I owe these guys everything, if it wasn’t for this clinic, I wouldn’t have my WylieCat anymore.
My cat fell out a window, 6 storeys down to concrete, & although he didn’t break bones, he broke his insides, especially his liver. The dedication of care…
Thank you to Jess and the team for looking after our Winnie. Always take extra care and attention. Jess truely listens and takes consideration. Appreciate it.
We had a seriously wonderful experience here. The team is so friendly, thorough in their explanations for their care, and knowledgeable. I so appreciate a doctor taking the time to educate me as an owner; there’s no better feeling than being an informed decision maker and owner. Our golden retriever, Leo, had the best care…
I have had dogs from the day I was born. I’ve lost track of the number of veterinarian practices I have dealt with . Vet HQ Double Bay is the best practice ever. Full stop. From the reception staff, to the nurses, to the vets, and to Geoff – the best of the best. Look no further for the most caring team on the planet
Vet HQ Double Bay has been looking after our beloved Hendrix since he was just 8 weeks old—he’s now nearly 12! The level of care, support, and understanding from the entire team has been absolutely fantastic.
Saw Dr Tony today for our rabbit’s vaccination and she got a mani/pedi too! Dr Tony is so experienced and handled her so beautifully
I took my new puppy Zebo (golden retriever) for his 2nd vaccination and the staff made the whole experience amazing made him and myself feel relaxed and welcome! Staff our extremely knowledgeable and are there to help with any questions and worries❤️.
Best team , my mini Schnauzer loves his treats and cuddles
He is with VetHQ since he was 8 weeks old, now he is 12 and a half years old beautiful dog . Geoff and everyone at the Clinic is dedicated and loving to our best friends
Common signs include coughing (especially at night or after excitement), difficulty breathing, reduced exercise tolerance, fainting episodes, decreased appetite, and lethargy. However, some pets show no obvious symptoms until the disease is advanced, which is why wellness examinations and pre-anaesthetic screening are essential for early detection.
At Vet HQ, we use physical examination to detect murmurs or abnormal rhythms, ECG to assess electrical activity, chest radiographs to evaluate heart size and check for lung changes, and echocardiography (cardiac ultrasound) to visualise heart structure and function directly. This comprehensive approach distinguishes between different cardiac diseases, guiding appropriate treatment.
Many cardiac cases can be managed by our team using in-house diagnostics and established treatment protocols. For complex cases, newly diagnosed severe disease, or pets not responding to initial treatment, we recommend consultation with our visiting cardiologist who assesses pets at our practice. Your pet remains in our care while undergoing external cardiac evaluation and receiving personalised treatment recommendations.
Heart disease can rarely be cured, but it can often be managed successfully with medications that improve heart function, reduce fluid accumulation, and maintain quality of life. Many pets live comfortably for months to years with appropriate treatment and monitoring. Prognosis varies significantly depending on the disease type and severity.
The monitoring frequency depends on the disease severity and stability. Newly diagnosed patients often need rechecks every 1-3 months initially. Stable patients on established treatment may be considered for an extended interval of every 3-6 months. We adjust monitoring frequency based on your pet’s response to treatment and any changes in clinical signs.
We combine advanced diagnostic capabilities with continuity of care. Your pet’s cardiac disease is managed by veterinarians who know their complete medical history, understand your family situation, and communicate clearly at every stage. When external specialist cardiology consultation benefits outcomes, we bring the specialist to our practice rather than sending your pet to unfamiliar referral centres. This approach reduces stress while providing appropriate expertise.
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