Background: Aortic thrombosis (ATh) is an uncommon condition in dogs, with limited understanding of risks factors, outcomes, and treatments. Objectives/Hypothesis: To describe potential risk factors, outcome, and treatments in dogs with ATh. Animals: Client-owned dogs with a diagnosis of ATh based on ultrasonographic or gross necropsy examination. Method: Multicentric retrospective study from 2 academic institutions. Results: One hundred dogs were identified. Anti-thrombin diagnosis, 35/100 dogs were nonambulatory. The dogs were classified as acute (n = 27), chronic (n = 72), or unknown (n = 1). Fifty-four dogs had at least one comorbidity thought to predispose to ATh, and 23 others had multiple comorbidities. The remaining 23 dogs with no obvious comorbidities were classified as cryptogenic. Concurrent illnesses potentially related to the development of ATh included protein-losing nephropathy (PLN) (n = 32), neoplasia (n = 22), exogenous corticosteroid administration (n = 16), endocrine disease (n = 13), and infection (n = 9). Dogs with PLN had lower antithrombin activity than those without PLN (64% and 82%, respectively) (P = .04). Sixty-five dogs were hospitalized with 41 subsequently discharged. Sixteen were treated as outpatient and 19 euthanized at admission. In-hospital treatments varied, but included thrombolytics (n = 12), alone or in combination with thrombectomy (n = 9). Fiftyseven dogs survived to discharge. Sixteen were alive at 180 days. Using regression analysis, ambulation status at the time of presentation was significantly correlated with survival-to-discharge (P < .001). Conclusions/Clinical Importance: Dogs with ATh have a poor prognosis, with nonambulatory dogs at the time of presentation having worse outcome. Although the presence of comorbid conditions associated with hypercoagulability is common, an underlying cause for ATh was not always identified.

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Dogs with head trauma may develop seizures at a greater rate than dogs in the general canine patient population. Particularly in the immediate to early posttraumatic period, clinicians should remain vigilant for the development of posttraumatic seizures and treat patients accordingly.

A fluoroscopic technique was used as a minimally invasive alternative to endoscopy or open-chest surgery for removal of a foreign body from the trachea of a cat. Use of this technique allowed uninterrupted ventilation of the cat throughout the procedure.

Objective: Compare cardiac index (CI) and oxygen delivery index (DO 2 I) in conscious, critically ill dogs to control dogs; evaluate the association of CI and DO 2 I with outcome. (Po0.001). There was no difference in CI (P 5 0.49) or DO 2 I (P 5 0.51) for dogs that survived to discharge versus those that did not. There was no difference in mean CI (P 5 0.97) or DO 2 I (P 5 0.50) of survivors versus non-survivors for 28-day survival. Survivors had lower blood glucose (P 5 0.03) and serum lactate concentrations (P 5 0.04) than non-survivors. Conclusions: CI and DO 2 I in conscious dogs with SIRS were lower than control dogs, which differs from theories that dogs with SIRS are in a high cardiac output state. CI and DO 2 I were not significantly different between survivors and non-survivors. Similar to previous studies, lactate and glucose concentrations of survivors were lower than non-survivors.