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Reflex bradycardia in facial surgery.

¹Department of Anaesthetics, Stepping Hill Hospital, Stockport.

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|September 1, 1989

Summary

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Traction on trigeminal nerve structures can trigger a pulse-slowing reflex, known as the oculocardiac reflex. Understanding and managing this reflex is crucial for preventing complications during facial and cranial surgeries.

Area of Science:

Neurology
Cardiology
Ophthalmology

Background:

The trigeminal nerve innervates facial structures, including those around the eye.
The oculocardiac reflex is a known phenomenon, typically associated with eye surgery.

Observation:

Traction or stretching of any structure innervated by the trigeminal nerve can induce a reflex bradycardia.
This reflex is often misattributed solely to extra-ocular muscle manipulation.

Findings:

The oculocardiac reflex can manifest during surgery involving the face, cranium, and orbit.
Awareness of this reflex and its management strategies can mitigate surgical risks.

Implications:

Proper recognition and management of the oculocardiac reflex can prevent patient morbidity and mortality.

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This understanding is vital for surgeons operating in relevant anatomical areas.

Further research into the precise mechanisms and broader triggers of this reflex is warranted.