Pre-surgical regional blocks in orthognathic surgery: prospective study evaluating their influence on the intraoperative use of anaesthetics and blood pressure control

International Journal of Oral and Maxillofacial Surgery
Y A ChenY R Chen

Abstract

In orthognathic surgery, maxillary (CNV2) and mandibular (CNV3) divisions of the trigeminal nerve can be blocked successfully prior to surgery. In this study, it was hypothesized that regional blocks (nerve block over a particular region: bilateral CNV2 and CNV3 divisions of the trigeminal nerve) would decrease the total requirement for intraoperative anaesthetic agents and facilitate the process of hypotensive anaesthesia. Local anaesthesia containing 1/100,000 epinephrine and 10ml 0.5% levobupivacaine was injected into the planned incisions in 50 patients. Twenty-five patients (group A) underwent orthognathic surgery without regional blocks and another 25 patients (group B) underwent surgery with regional blocks. The anaesthetic protocol was the same in both groups and administered by a single anaesthesiologist. The mean arterial pressure was recorded at several points throughout the operation, as well as all the medications used. The blood loss and the amounts of medications administered were lower in group B than in group A. In patients receiving regional blocks, the amounts of fentanyl and nicardipine required were significantly lower. The use of pre-emptive anaesthesia in orthognathic surgery may reduce the overall amount...Continue Reading

References

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Aug 21, 2007·Clinics in Plastic Surgery·Yong-Ming ChuYu-Ray Chen
Dec 18, 2013·International Journal of Oral and Maxillofacial Surgery·E CarlosN C Guimarães

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Citations

Jan 9, 2020·Annals of Plastic Surgery·Rafael DenadaiLun-Jou Lo
Nov 26, 2020·Plastic and Reconstructive Surgery·Thatchawee BorikanphanitphaisanEllen Wen-Ching Ko
May 24, 2021·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Xiaodong WangDan Zhou

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