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Oculocardiac reflex induced by zygomatic arch fracture in a crossbreed dog |
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| Authors: | Masoud Selk Ghaffari DVM PhD Mehdi Marjani DVM PhD Majid Masoudifard DVM PhD |
| Affiliation: | aDepartment of Clinical Studies, School of Veterinary Medicine, Islamic Azad University, Karaj Branch, Karaj, Iran;bDepartment of Clinical Studies, School of Veterinary Medicine, University of Tehran, Tehran, Iran |
| 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. |
| Keywords: | Vagal Bradycardia Atrioventricular blockade Canine |
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