Sunshine is a lovely senior dog with a sweet and sunny disposition, with a condition known as laryngeal paralysis. This condition is relatively common in older large breed dogs and is characterized by loud breathing sounds, voice changes, tiring easily with exercise and excessive panting. The laryngeal nerves control the opening and closing of the larynx or voice box muscles. Paralysis results in the abductor muscles being unable to work properly and it becomes difficult to breathe through the paralyzed laryngeal folds. Sunshine had laryngeal tie back (lateralization) surgery done to physically open the larynx and has done very well since surgery. He was also tested for thyroid disease, which may play a part in this disorder and is being treated for hypothyroidism. Despite all of this Sunshine still loves coming to the vet and we are all happy to see him breathing easier.