Hypertrophic Osteopathy associated with Aortic Thrombosis in a Dog

Document Type: Scientific report

Author

College of Veterinary Medicine, Chonbuk National University, 79, Gobong-ro, Iksan-si, 54596, Jeollabuk-do, Republic of Korea

Abstract

Background: Aortic thrombosis is an uncommon problem in dogs. Although the pathogenesis of hypertrophic osteopathy (HO) is unknown, it is thought to the cause of blood flow disorder. In this case, removal of aortic thromboembolism (ATE) resulted in periosteal proliferation. Case description: A 4.8-kg, 3-year-old, intact female Maltese was referred with a bite wound showing pneumomediastinum, pneumothorax, and subcutaneous emphysema. After adequate treatment, the dog had recoverd well and was discharged. Findings/treatment and outcome: Acute non-painful paraparesis suddenly developed five days after discharge. An abdominal ultrasound showed aortic thromboembolism at the level of 1 cm proximal to the external iliac arterial bifurcation. Based on clinical sign, physical exam, neurologic exam, and ultrasonography, aortic thrombosis was diagnosed. Arterial thrombectomy was performed to remove the thrombus. Twenty-four days after surgery, the dog had pain and soft tissue swelling of both stifles due to hypertrophic osteopathy. After rehabilitation, the dog finally started to ambulate, and the dorsal pedal arteries pulse were normal. Hypertrophic osteopathy also resolved completely. Conclusion: This report suggests the relationship between hypertrophic osteopathy and aortic thrombosis, for the first time in veterinary medicine.

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