Veterinary case
Severe heart valve disease unexpectedly improves in a dog
⚠️ This information is provided for awareness only and does not replace an examination by a veterinarian.
🤖 Summary produced automatically from the scientific publication cited at the bottom of the page.
An elderly Maltese dog had severe heart valve disease thought to have no hope of recovery, until her condition improved on its own.
What happened?
A 14-year-old Maltese dog was brought to the vet because she was breathing fast while sleeping and coughing for several days. X-rays showed her heart was enlarged, especially on the left side. A heart ultrasound confirmed a severe leak in the mitral valve, the valve separating two chambers of the heart.
What did the vet find?
The vet found a very enlarged heart with a very severe leak in the mitral valve, with blood flowing back almost completely. The valve wall was thickened, and there was an abnormal gap between its two parts, a sign of advanced degeneration. This situation is usually considered very serious in dogs, with a poor outlook.
What did the vet do?
ℹ️ Treatment given to THIS animal, decided by its veterinarian. It is not a prescription: never apply it without veterinary advice.
The vet started standard treatment with medicines to remove excess water from the body and support the heart. Over time, the doses had to be increased because symptoms kept returning. The dog was regularly monitored with X-rays and heart ultrasounds for more than two years.
What happened next?
Twenty-six months after the first visit, the dog's heart had clearly shrunk and the mitral valve leak had greatly decreased, almost unexpectedly, even though the valve kept thickening. The diuretic medicines could be stopped, and the dog remained stable on just one heart medicine for the following six months, without coughing or breathing difficulty.
Advice for the farmer
Even with heart disease considered very severe, it is important to keep up regular veterinary follow-up, as the outcome can sometimes be a pleasant surprise.
Source
- Source
- PubMed Central
- Title
- Spontaneous Reduction in Mitral Valve Regurgitation in Three Dogs With Severe Myxomatous Mitral Valve Disease: An Unusual Case Report.
- Authors
- Nam HS, Oh Y.
- Year
- 2026
- DOI
- 10.1002/vms3.71155
- Licence
- CC BY
