Two Episodes of Trigeminocardiac Reflex During a Pan facial Fracture Surgery, a Rare Phenomenon – Case Report and Review of LiteratureCorrespondence Address :
Dr. Abhishek Bhattacharjee,
Postgraduate Student, Department of Oral and Maxillofacial Surgery, Vokkaligara Sangha Dental College,
Bengaluru-560004, Karnataka, India.
Trigeminocardiac reflex is a sudden physiologic response due to mechanical manipulation of any of the branches of trigeminal nerve. Trigeminocardiac reflex occurs due to pressure effect or stretching of trigeminal nerve which causes fall in blood pressure and decrease in heart rate. In this reflex arc, the trigeminal nerve serves as afferent pathway and vagus nerve, which is cardio inhibitory in nature, serves as efferent pathway. Trigeminocardiac reflex during maxillofacial trauma surgery is not a common phenomenon. The present case report describes a case of 40-year-old male patient, diagnosed with pan facial fracture in which two episodes of trigemino cardiac reflex were seen intraoperatively during fracture reduction and fixation of left zygomaticomaxillary complex fracture and inferior orbital rim fracture. Intraoperative management of trigeminocardiac reflex was done by withholding the stimulus and administration of atropine.
Oculocardiac reflex, Reflex arc, Trigeminal nerve, Zygomatico maxillary complex fracture
Abhishek Bhattacharjee, Prashanth Rajaram, Abhishek Khatua, K B Rudresh, Pallavi B Krishnamurthy. TWO EPISODES OF TRIGEMINOCARDIAC REFLEX DURING A PAN FACIAL FRACTURE SURGERY, A RARE PHENOMENON – CASE REPORT AND REVIEW OF LITERATURE. Journal of Clinical and Diagnostic Research [serial online] 2017 September [cited: 2018 Jan 20 ]; 11:ZD01-ZD03. Available from
Date of Submission: May 02, 2017
Date of Peer Review: Jun 23, 2017
Date of Acceptance: Aug 08, 2017
Date of Publishing: Sep 01, 2017
FINANCIAL OR OTHER COMPETING INTERESTS: None.
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