Oculocardiac Reflex during Anesthesia
Keywords:
bradycardia, general anesthesia, hemodynamic change, oculocardiac reflexAbstract
Oculocardiac reflex (OCR), a phenomenon that can occur during anesthesia, has been observed for more than a century. It can be triggered by pressure on the eyeball, manipulation of the extraocular muscles, or surgical manipulation of the eye or nearby structures. The reflex leads to a decrease in heart rate, which can cause significant hemodynamic changes, especially in patients with pre-existing cardiac disease. There are several strategies that can be employed to mitigate the OCR during anesthesia, including the use of local anesthesia, the administration of anticholinergic drugs, and the use of regional anesthesia techniques to avoid stimulation of the Trigeminal nerve. By understanding the mechanisms of the OCR and implementing appropriate interventions, anesthesiologists can help to minimize the risk of adverse events associated with this reflex during surgery.
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