Evaluation of Maxillary and Mandibulary Nerve Blocks on Morphine Consumption

Evaluation of Maxillary and Mandibulary Nerve Blocks on Morphine Consumption in Double-jaw Surgery, a Retrospective Study

Background and Objectives: Double-jaw surgery is one of the most painful oral surgery, requiring multimodal analgesia including controlled morphine pump and its secondary effects. The aim of this study was to evaluate the effectiveness of face block (mandibulary and maxillary block analgesia) on the first 24 hours on morphine consumption in patients admitted for double jaw surgery.

Methods: Patients undergoing double-jaw surgery between January 2015 and May 2017 were enrolled. Patients were separated into 2 groups: patients receiving maxillary-mandibulary nerve block and those no receiving it. The primary endpoint was the morphine consumption within 24 hours post-surgery. Secondary endpoints were the intra-operative remifentanil consumption, incidence of postoperative nausea and vomiting at 24 hours, morphine consumption in recovery room, length of stay in hospital.

Inclusion Criteria:

- Male and female who underwent double jaw surgery

Exclusion Criteria:

• opposition to the study
• an additional surgical procedure
• preoperative consumption of morphine or derived from morphine
• perioperative N20