The incision, sutures, and drainage tube can cause the dog to shake its head, so it is important that the pinna be stabilized if it is to heal. the pinna is bandaged to the dog's head to prevent further damage this part of the procedure involves placing several sutures through the pinna to "tack down" the separated skin it is necessary to prevent refilling of the hematoma the skin that has been separated from the underlying cartilage is sutured to close the space created by the hematoma a rubber or latex drainage tube is passed through the hematoma to allow drainage of any fluid that may continue to leak from the damaged vessels depending on the size of the hematoma, the veterinarian makes either one large incision over the hematoma, or a small incision at each end the veterinarian makes an incision over the hematoma to remove the blood/serum and any blood clots the success rate for this approach is only about 50% the pinna is bandaged to the dog's head for a few days the veterinarian inserts a needle into the hematoma and draws out the fluid cortisone may then be injected into the hematoma Causes of irritation within the ear canal include bacterial or fungal infection (otitis externa), parasites (mites, ticks, etc.), and foreign materials (e.g. The most common reason why dogs scratch at their ears or shake their heads repeatedly is irritation within the ear canal. In most cases aural hematomas result from persistent scratching of the ear or shaking of the head. Hematomas develop when blood vessels beneath the skin are ruptured and leak blood or serum into the surrounding area. Without treatment, healing of the hematoma may disfigure the pinna, causing shrinkage and distortion. The swelling is hot and painful when it first develops. It consists of a thin layer of cartilage (which gives the pinna its shape and structure), with skin on either side, on the outer and inner surface of the ear flap.Īural hematomas cause obvious swelling and thickening of the pinna. This part of the ear is called the pinna. An aural hematoma is a hematoma that develops beneath the skin on the ear flap. Hematomas that are more than a couple of days old may also contain blood clots. Hematomas are collections of blood or serum (the yellowish, clear fluid portion of the blood) within the tissues.
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