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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.
Cureus
|July 5, 2024
Summary
The trigeminocardiac reflex (TCR) can cause serious cardiovascular events like bradycardia during dental surgery. This case highlights a TCR occurrence in a healthy patient during a Le Fort I osteotomy.
Area of Science:
- Neurology
- Cardiology
- Oral and Maxillofacial Surgery
Background:
- The trigeminocardiac reflex (TCR) involves cardiovascular responses like bradycardia and asystole due to trigeminal nerve stimulation.
- It is characterized by transient bradycardia, hypotension, or cardiac arrest following trigeminal nerve stimulation.
- The precise mechanisms of TCR are not fully elucidated but involve neurotransmitter release and central neuronal integration.
Observation:
- This case report details a trigeminocardiac reflex event.
- The reflex occurred during a Le Fort I osteotomy procedure.
- The patient had no prior medical issues.
Findings:
- Trigeminocardiac reflex (TCR) was observed during a Le Fort I osteotomy.
- The patient experienced significant cardiovascular reactions.
- The event occurred in an otherwise healthy individual.
Implications:
- This case underscores the importance of recognizing and managing TCR during maxillofacial procedures.
- Awareness of TCR is crucial for patient safety in oral and maxillofacial surgery.
- Further research into TCR mechanisms may improve perioperative care and outcomes.

