The Impact of Nasogastric Tube Gastric Decompression on Postoperative Nausea and Vomiting in Orthognathic Surgery

Inclusion Criteria: * Patients over the age of 16 at the time of consent undergoing orthognathic surgery for the correction of dentofacial deformities at the Victoria General Hospital during the study period. Orthognathic surgery to include: 1. Patients who receive single-jaw surgery (i.e. BSSO \[Bilateral Sagittal Split Osteotomy\] only, or LeFort only). 2. Patients receiving double-jaw surgery (i.e. BSSO and LeFort). 3. Patients undergoing a functional genioplasty in addition to another osteotomy (i.e. BSSO and/or LeFort). Exclusion Criteria: * Patients will be excluded if they do not meet inclusion criteria or if they have risk factors known to directly impact PONV and/or cause delayed gastric emptying: 1. Patients under the age of 16 at the time of consent. 2. Patients contraindicated to undergo elective surgery, including pregnant patients. 3. Patients undergoing a functional genioplasty procedure only. 4. Patients taking GLP-1 receptor agonists). 5. Patients with known gastroparesis.