Primary Secretory Otitis Media

(Also known as “Glue Ear” or Middle Ear Effusion)

What is Primary Secretory Otitis Media (PSOM)

PSOM is a condition in which the dog’s middle ear becomes filled with mucus. In essence, the middle ear is a portion of the ear that is internal to the eardrum and external to the cochlea. When it becomes plugged with mucus, the tympanic membrane (ear drum) will begin to bulge.

Symptoms

PSOM is often misdiagnosed as syringomyelia due to the similarities of the symptoms. For example, the dog may experience pain in the head or neck. As a result, the animal may tilt his head to one side stabilizing it in that position. Other symptoms include:

• Rapid eyeball movement
• Drooping ear
• Excessive yawning
• Scratching the ear
• Ataxia
• Loss of hearing
• Fatigue
• Crying
• Facial paralysis
• Seizures

Causes

PSOM is most commonly found in Cavalier King Charles Spaniels. Therefore, it is believed to be an inherited disorder or passed on by the parents.

Treatment and Prevention

PSOM is primarily treated by means of surgery. The procedure most commonly used is called myringotomy. Basically, a small incision is made in the ear-drum in order to remove the excess mucus. Afterward, the middle ear is flushed and topical or systemic corticosteroids and antibiotics are given. The best prevention method is to avoid breeding carriers of this disorder. For further information regarding this disease, consult with your family vet.

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Primary Secretory Otitis Media