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Laryngeal Paralysis and Barking Problems in Dogs

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Laryngeal Collapse

This is a late stage in airway obstruction. Pressure changes in the upper airway caused by stenotic nares, an elongated soft palate, laryngeal paralysis, or everted laryngeal saccules stretch the ligaments that support the laryngeal cartilages. These cartilages gradually collapse inward and block the airway. At this stage any change in the dog’s need for air can cause acute respiratory insufficiency and cardiac arrest.

Treatment: The first step is to surgically correct predisposing factors. If symptoms persist, the dog may benefit from a permanent tracheostomy.

Laryngitis

Laryngitis is inflammation and swelling of the vocal cords and surrounding laryngeal mucosa. The signs are hoarseness and the inability to bark. The most common cause of laryngitis is voice strain caused by excessive barking or coughing. In the absence of these, suspect vocal cord paralysis. Laryngitis can accompany tonsillitis, throat infections, kennel cough, or tumors in the throat.

Treatment: Laryngitis due to excessive barking usually responds to removing the stimulus for the barking. When voice strain is due to prolonged coughing, take your dog to the veterinarian to investigate and eliminate the cause of the coughing.

Debarking and Barking Problems

Some dogs simply seem to enjoy barking. But constant shrill barking can lead to problems with neighbors and a dog being dropped off at the local shelter.

Debarking surgery removes some of the vocal chord tissue. This can be done through the mouth or through the throat. Lasers are sometimes used for this surgery. After debarking, dogs can still bark but it is a quieter, hoarse sound. If the dog develops scar tissue, she may recover the ability to bark normally. Too much scar tissue may interfere with breathing. Postoperative care is important, because any swelling in this area could cause acute breathing problems. You may need to search for a veterinarian experienced with this surgery.

Before doing debarking surgery, you should try behavior training and/or eliminate the cause of the excessive barking. Using a citronella or electronic bark collar may also work. These deliver a negative response when your dog barks, either with a spray of citronella or a mild shock.

WebMD Veterinary Reference from "Dog Owner's Home Veterinary Handbook"

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