The oculocardiac reflex during ophthalmoscopy in premature infants.
Of 54 consecutive infants referred for ophthalmoscopy with the pupils dilated, continuous electrocardiographic monitoring showed that 17 (31%) had bradycardia, ranging from 10% to 59% of baseline, coincident with instillation of eyedrops, insertion of an eyelid speculum, pressure on the globe, or stretching of the medial and lateral recti muscles.
D001145:Arrhythmias, Cardiac / Q000503:physiopathology; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D008991:Monitoring, Physiologic; D009887:Ophthalmoscopy; D012018:Reflex; D012024:Reflex, Oculocardiac