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Oculocardiac reflex induced by zygomatic arch fracture in a crossbreed dog
Masoud Selk Ghaffari1, Mehdi Marjani, Majid Masoudifard
1Department of Clinical Studies, School of Veterinary Medicine, Islamic Azad University, Karaj Branch, Karaj, Iran. selkghaffari@gmail.com
Abstract:
A 3-year-old crossbreed male dog was presented with a history of blunt facial trauma. Skull radiographs showed right zygomatic arch fracture. An electrocardiogram revealed bradycardia, first-degree atrioventricular block and QT prolongation. Standard biochemical profile including electrolytes was normal. Atropine response test (0.04 mg/kg intravenously) restored normal sinus rhythm at a rate of 140 bpm with normal QT and PR intervals. This observation is consistent with oculocardiac reflex secondary to zygomatic arch fracture.
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