title: A case of ocular cardiac reflex in a child with blunt ocular trauma.
abstract: An 11-year-old boy re-presented with refractory vomiting 18 h after blunt facial and head trauma. Initial CT of the brain performed at his first visit was normal. He was found to have a heart rate of 56 bpm (age appropriate 65-100 bpm) with a blood pressure 90/60 mm Hg. Physical examination revealed an injected sclera and limited vertical movement of the left eye. Neurological examination revealed no focal deficits, but a Glasgow Coma Scale of 14, with mild confusion, depressed mental status and diplopia on upward gaze. Performing upward gaze extra ocular movements exacerbated the patient's bradycardia and confirmed the presence of the oculocardiac reflex. High-resolution CT of orbits demonstrated a left orbital floor fracture with entrapment of the left inferior rectus muscle. Surgical correction resolved his bradycardia.
authors.affiliation: Department of Emergency, Malabar Institute of Medical Sciences, Calicut, Kerala, India.
authors.forename: Soma Sekhara
authors.initials: SS
authors.lastname: Reddy
authors.affiliation: Department of Emergency Medicine, George Washington University, Washington, District of Columbia, USA.
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Landry
authors.affiliation: Department of Emergency Medicine, George Washington University, Washington, District of Columbia, USA.
authors.forename: Kate
authors.initials: K
authors.lastname: Douglass
authors.affiliation: Department of Emergency, Malabar Institute of Medical Sciences, Calicut, Kerala, India.
authors.forename: Poovathum Parambil
authors.initials: PP
authors.lastname: Venugopalan
mesh_terms: D001919:Bradycardia / Q000209:etiology; D002648:Child; D003937:Diagnosis, Differential; D005151:Facial Injuries / Q000150:complications*; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000503:physiopathology*; D009917:Orbital Fractures / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D012024:Reflex, Oculocardiac; D014949:Wounds, Nonpenetrating / Q000150:complications*