GOLPP in dogs: laryngeal paralysis and back-leg weakness

Your older Labrador has started to sound raspy and wheezy on walks. Their bark has gone hoarse, they pant more than they used to on warm days, and lately their back legs seem weaker. It is easy to put all of that down to age, or to assume the back legs are simply arthritis.

Sometimes those signs are linked. Geriatric onset laryngeal paralysis polyneuropathy, usually shortened to GOLPP, is a slowly progressive nerve condition of older dogs. It affects the nerves that open the voice box (the larynx) and, over time, the long nerves that run to the legs. The noisy breathing and the wobbly back end can be two sides of the same problem.

This guide explains what GOLPP is, the signs to look for, how vets diagnose and manage it, the heat and harness rules that really matter, the emergency signs you must never ignore, and how to keep an older dog moving comfortably alongside their vet's plan.

Supporting an Older Dog's Joints Alongside GOLPP

GOLPP is a nerve condition, and no supplement treats it. Many dogs with GOLPP are older, larger dogs who may also have stiff joints, though, and keeping those joints as comfortable as possible matters when the nerves are already making walking harder. If you are looking at joint support, here is what the main UK options contain.

We make MedPaw, so we have stuck to each brand's own published ingredients for every other column.

MedPaw is the only option here with all six key joint actives in one daily chew, covering cartilage, joint fluid and everyday comfort. For an older dog whose legs are already working harder, that all-round approach is what we designed it for.

Most dogs affected by GOLPP are medium to large breeds of 18kg and over, which means 2 to 3 chews a day. If your dog coughs or gags when eating, ask your vet how best to give any treat or chew.

See MedPaw Hip & Joint Chews Max for your older dog, with our 60-day money-back guarantee.

What Is GOLPP?

The larynx sits at the top of the windpipe. Two flaps of cartilage open wide when your dog breathes in and close when they swallow, so food and water go down the right way. Those flaps are moved by small muscles controlled by long nerves.

In GOLPP, those nerves slowly degenerate. The flaps no longer open properly, so air has to squeeze through a narrower gap. That is what makes the harsh, rasping noise. Because the problem is a polyneuropathy, meaning many nerves are affected, the same slow change also reaches the nerves to the back legs, and sometimes the oesophagus (food pipe).

Michigan State University's veterinary college, which runs a dedicated GOLPP research programme, describes it as a condition that typically appears between 8 and 13 years of age, progresses slowly over several years and is not painful in itself.

Breeds Commonly Affected

Labrador Retrievers are by far the breed most often affected. Golden Retrievers, German Shepherds, Greyhounds and other medium to large breeds can develop it too. Younger dogs of some breeds can be born with an inherited form of laryngeal paralysis, but that is a separate condition from GOLPP.

Signs of GOLPP

Signs usually creep in over months. UK referral practice Anderson Moores notes that early on, dogs often just seem slower on walks, which owners understandably put down to ageing.

Breathing and Voice

• Noisy breathing, especially when breathing in. At first it is only obvious during exercise or excitement, then at rest too.
• A change in bark, which may become hoarse, quieter or strange sounding.
• Heavy panting that takes longer to settle after walks.
• Coughing or gagging, particularly when eating or drinking.
• Heat intolerance. Warm, humid days, car journeys and excitement make breathing harder.

Back-Leg Weakness

The hind-limb changes usually come on more slowly than the breathing signs, sometimes over a year or more. You might notice scuffed back nails, toes that knuckle over, a wobbly or wide stance, muscle loss over the hindquarters, slipping on smooth floors and difficulty with steps or getting up. Our guide to a dog losing balance in the back legs covers other causes too.

GOLPP or Arthritis? Why the Back Legs Get Misread

Because GOLPP shows up in older, larger dogs, its hind-limb weakness is often mistaken for arthritis. Many dogs have both, which adds to the confusion. The difference matters, because the management is not the same.

If your dog's back legs seem weak rather than sore, see also our articles on degenerative myelopathy and old dogs' back legs giving way.

How Vets Diagnose GOLPP

Your vet will listen to your dog's breathing, examine the neck and chest and carry out a neurological examination of the legs. Laryngeal paralysis is confirmed by looking directly at the larynx under light sedation or anaesthesia to see whether the flaps move as your dog breathes.

Vets may also suggest blood tests, including thyroid testing, and chest X-rays to check the lungs and the oesophagus. Anderson Moores suggests owners film their dog on a walk, ideally for 30 seconds or more with clear sound, because the breathing noise often isn't obvious in a calm consulting room.

Treatment and Management

Mild Cases

Dogs with mild signs can often be managed with lifestyle changes: keeping them cool, avoiding hard exercise on warm days, reducing excitement, keeping weight lean and switching to a harness. Your vet will advise on a plan and how often to recheck.

Tie-Back Surgery

For moderate to severe breathing problems, the usual operation is a unilateral arytenoid lateralisation, better known as a tie-back. Stitches hold one side of the larynx permanently open, which often gives an immediate, marked improvement in breathing. It does not restore normal nerve function and it does not change the hind-limb weakness.

The main long-term risk is aspiration pneumonia, where food, water or saliva is breathed into the lungs, because the opened larynx can't close fully. Michigan State quotes a risk of around 18%. Aftercare usually includes a harness only, carefully prepared food for the first weeks, and, according to Anderson Moores, no swimming ever again because the dog can no longer protect its airway.

Harness, Not Collar

A collar presses on the throat and larynx every time your dog pulls. A well-fitted harness takes the pressure onto the chest instead. This is advised whether or not your dog has surgery.

Heat and Weight

Heat is the biggest danger for a dog with laryngeal paralysis. Dogs cool themselves by panting, and a narrowed airway makes panting less effective, so they overheat more easily, which makes them pant harder. Walk early and late on warm days, never leave them in a car, provide shade and cool water, and keep them lean, as extra weight makes breathing harder.

Supporting Mobility and Joints

The hind-limb weakness of GOLPP progresses slowly, so the aim is to keep your dog strong, confident and safe for as long as possible.

• Keep moving. Short, regular, cool walks help maintain muscle. Ask your vet about physiotherapy or hydrotherapy using an underwater treadmill rather than swimming, especially after a tie-back.
• Grip. Rugs and runners on smooth floors, and dog boots or toe grips if your vet agrees.
• Help with steps. Ramps, a support harness with a handle and blocking off stairs when you are out.
• Raised or adjusted bowls. Some vets suggest changing bowl height to make swallowing easier. Ask what suits your dog.
• Joint comfort. If your dog also has stiff joints, treating or supporting them reduces the extra effort of walking. Our guide to joint supplements alongside medication explains how they fit with vet treatment.

MedPaw Hip & Joint Chews Max is a complementary feed with glucosamine, chondroitin, MSM, green-lipped mussel, hyaluronic acid and Boswellia serrata, plus omega-3 from green-lipped mussel and flax seed, vitamins C and E and zinc. It supports joints; it does not treat GOLPP, the nerves or the breathing problem. Always check with your vet before starting it, particularly if your dog has had surgery, has swallowing difficulties or takes medication.

When to See Your Vet

A breathing crisis in a dog with laryngeal paralysis can become life-threatening quickly. If in doubt, phone your vet or the nearest out-of-hours service straight away.