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Updated: May 2, 2026

Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
Trigeminal Cardiac Reflux During Le Fort I Osteotomy: A Case Report
Hissah Alshalawi1, Bader Fatani1, Mohammed Alotaibi2
1Dentistry, College of Dentistry, King Saud University, Riyadh, SAU.
Abstract:
The trigeminocardiac reflex (TCR) is marked by significant cardiovascular reactions, such as bradycardia and asystole, triggered by trigeminal nerve stimulation. It is described as a brief episode of bradycardia, hypotension, or even cardiac arrest resulting from trigeminal nerve stimulation. The exact cause of TCR is not yet fully understood, but it is believed to involve the release of neurotransmitters, including acetylcholine, and the involvement of central neuronal integration. In this case report, we present an occurrence of trigeminal cardiac reflux during a Le Fort I osteotomy procedure in a patient with no medical issues.

