Understanding Neurological Health in the Leonberger

Quick answer

Leonbergers are a large, sturdy breed, but they have a recognised tendency toward specific neuromuscular issues that owners should monitor throughout their lives. The most notable condition is laryngeal paralysis, which affects the upper airway and breathing. By tracking your dog's breathing patterns and mobility during regular home exams, you can catch subtle changes before they become emergencies.

Laryngeal Paralysis

Laryngeal paralysis is a condition where the muscles that open the larynx fail to function correctly. This is a recognised tendency in the breed. Unlike some other breeds where this is seen in very young puppies, in the Leonberger, this is a recognised tendency rather than a proven one, and affected dogs are typically older than one year of age. The onset of symptoms usually begins from twelve months onward.

What you will notice at home

The first sign is often a change in the sound of your dog's bark or a subtle rasping sound when they breathe. You may notice that your dog tires more easily during exercise or seems to struggle when the weather is warm or humid. In more advanced cases, you might observe a high-pitched sound, known as stridor, when your dog breathes in. Because this condition affects the airway, your dog may also experience episodes of coughing or gagging, especially after eating or drinking.

How the vet confirms it

Your veterinarian will perform a physical examination to listen to the chest and upper airway. To confirm the diagnosis, the vet will perform a laryngeal examination. This typically requires a very light level of sedation, allowing the vet to look directly at the larynx while the dog is breathing. This confirms whether the laryngeal cartilages are failing to open as they should during inhalation.

Urgency and care

This condition is progressive. If you notice your dog struggling to catch their breath, becoming distressed, or if their gums look pale or blue, this is an emergency. The primary risk is that the airway does not open wide enough to allow sufficient oxygen intake, which can lead to overheating and severe respiratory distress. Keep your dog cool, calm, and quiet if you suspect an issue, and seek veterinary care immediately.

Maintaining a Health Baseline

Because Leonbergers are a large breed, subtle changes in their movement or breathing can be overlooked until they become more obvious. Creating a simple routine is the best way to catch issues early. Once a month, or weekly for senior dogs, perform a full check. Look at their body condition score to ensure they are not carrying excess weight, which puts unnecessary strain on the body. Check their gum color to ensure they are a healthy pink. Observe their mobility during a walk and listen to their breathing while they are resting. If you notice anything that deviates from your dog's normal baseline, write it down and record a video clip. This information is invaluable to your veterinarian when diagnosing a potential neuromuscular issue.