Cardiology

TEER Mitral Valve Repair

Transcatheter edge-to-edge repair — TEER — costs roughly $12,000 to $25,000 for a dog, including the workup, the procedure and hospitalisation.

It is the newest intervention in this catalog and one of the most misunderstood, so it is worth being precise about what it is and who it is for.

The disease behind it

Myxomatous mitral valve disease is the most common heart disease in dogs. The mitral valve thickens and deforms, stops sealing properly, and blood leaks backwards with every beat. The heart enlarges to compensate, and eventually fluid backs up into the lungs — congestive heart failure.

Cavalier King Charles Spaniels above all, then Dachshunds, Chihuahuas, Miniature Poodles and most small breeds.

Until recently the only answer was medication — pimobendan, diuretics, ACE inhibitors — which manages the consequences well and often for years, but never touches the leaking valve itself.

What TEER does

A catheter is passed through a vein and guided to the heart. A clip is placed on the mitral valve leaflets, holding them partly together so the leak is reduced.

No open chest. No cardiopulmonary bypass.

That is the entire reason it matters. Open-heart mitral valve repair under bypass produces excellent results, but it exists at only a handful of centres worldwide, costs more, and carries the substantial risks that bypass brings. TEER is the less invasive middle path.

Palliative, not curative

Read that again, because "repair" leads owners to hear "fixed".

TEER reduces the regurgitant leak. It does not replace the valve or reverse the disease. Medication usually continues afterwards, sometimes at lower doses. Dogs often feel considerably better and cope far more comfortably — but they still have mitral valve disease.

Being clear about this in advance is the difference between a good outcome and a disappointment.

Who is a candidate

Selection is careful and most dogs are not candidates. Broadly:

  • Progressive heart failure despite optimal medical therapy — this is not an early intervention
  • Valve anatomy suitable for the device, determined by transoesophageal echocardiography and CT beforehand. Not every mitral valve can be clipped.
  • No significant pulmonary hypertension, which raises procedural risk substantially
  • No other disease independently limiting life expectancy
  • Large enough for the delivery system, which sets a practical size floor at some centres

For most dogs with mitral valve disease, excellent medical management remains the right answer. That is not a hedge — it is the honest position, and it is what makes the recommendation meaningful for the minority who genuinely are candidates.

Availability

A small number of specialist veterinary cardiology centres. Expect to travel, expect a waiting list, and expect a detailed screening process before anyone commits.

If your cardiologist has not raised it, it is a fair question to ask — but do not be surprised if the answer is that your dog is better served by continuing on medication.

The one thing every reader should take away

Whether or not your dog ever reaches a catheterisation lab, this is the most useful thing on the page.

Count your dog's sleeping respiratory rate.

While they are genuinely asleep, count breaths for a full minute. A normal dog sits comfortably under 30. A sustained rise above about 40 is one of the earliest reliable signs that fluid is accumulating in the lungs — often before coughing or breathlessness is obvious.

Take the count a few times a week and write it down. If you own a Cavalier, this single habit is the best early-warning tool available to you, it costs nothing, and it regularly buys the days that matter.

Emergency signs

Go immediately for:

  • Laboured or rapid breathing at rest, or breathing with the elbows held out
  • Coughing up pink or white froth
  • Collapse or fainting
  • Gums or tongue turning blue or grey

Who isn't a candidate

  • Other: Disease still well controlled on medication — TEER is for dogs whose heart failure is progressing despite optimal drug therapy, not an early intervention.
  • Concurrent condition: Significant pulmonary hypertension, which raises procedural risk substantially and may make the benefit unattainable.
  • Other: Valve anatomy unsuitable for the device, determined by transoesophageal echocardiography and CT beforehand; not every mitral valve can be clipped.
  • Concurrent condition: Significant kidney disease or other systemic illness limiting life expectancy independently of the heart.
  • Weight: Very small dogs may fall below the size threshold for the delivery system at some centres.

Common questions

How much does mitral valve repair cost for a dog?

TEER costs roughly $12,000 to $25,000, covering the screening workup with transoesophageal echocardiography and CT, the procedure itself in a catheterisation lab, and hospitalisation. Open-heart repair under cardiopulmonary bypass, available at very few centres, costs more again. Travel and pre-procedure cardiology care add to both.

What is TEER surgery in dogs?

Transcatheter edge-to-edge repair — a catheter passed through a vein to the heart, placing a clip on the mitral valve leaflets so they are held partly together and the backward leak is reduced. It requires no open chest and no cardiopulmonary bypass, which is why it is spreading faster than open-heart repair.

Which dogs are candidates for mitral valve repair?

Dogs with heart failure progressing despite optimal medication, whose valve anatomy suits the device as determined by transoesophageal echocardiography and CT, without significant pulmonary hypertension or other life-limiting disease, and large enough for the delivery system. Most dogs with mitral valve disease are better served by continued medical management.

Is mitral valve surgery available for dogs?

Yes, at a small number of specialist veterinary cardiology centres. Both catheter-based TEER and open-heart repair under cardiopulmonary bypass exist, the latter at very few facilities worldwide. Expect travel, a waiting list and a detailed screening process before any centre commits to treating your dog.

What is the life expectancy of a dog with mitral valve disease?

Highly variable. Many dogs live for years after a murmur is first heard, and modern medication significantly extends life once heart failure develops. Monitoring the sleeping respiratory rate at home — a sustained rise above about 40 breaths a minute suggests fluid accumulating in the lungs — is the most useful tool owners have for catching deterioration early.

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