Transarterial embolization provided a safe, rapid, and effective method for ICA, ECA, and MA occlusion in normal and affected horses. In affected horses, the technique was possible despite active bleeding, allowing adequate identification and occlusion of all sources of hemorrhage.

Endotracheal hemorrhage from the innominate artery is, fortunately, a rare problem encountered by the otolaryngologist. We present a patient with a tracheal-innominate artery fistula secondary to delayed rupture of a traumatic innominate artery aneurysm. The differential diagnosis of innominate artery hemorrhage is discussed, as is the management of this potentially lethal event. We propose, as the treatment of choice, cessation of hemorrhage through the use of a cuffed endotracheal tube, followed by ligation of the innominate artery using cardiopulmonary bypass. These techniques were used in this patient with a successful outcome.

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