Carbohydrate Fluids and Post Operative Nausea and Vomiting
PONV
The Effects of Pre-operative Carbohydrate Fluids on PONV Incidence and Intensity in Orthognathic Surgery Patients
1 other identifier
interventional
32
1 country
1
Brief Summary
This study is a prospective randomized clinical controlled trial testing the effects of pre-operative \>50 g pre-operative carbohydrate fluids (apple juice) on a patient's post-operative nausea and vomiting (PONV) incidence and intensity. Optimizing fluid therapy in the peri-operative setting has been proven to improve patient outcomes and reduce complications and length of hospital stay. Based on practice guidelines under the American Society of Anesthesiologists, pre-operative hydration with complex carbohydrate drinks is safe and should be encouraged as it helps with improving metabolism to an anabolic state, decreases insulin resistance, reduces anxiety, and reduces PONV. While pre-operative carbohydrate (CHO) fluids have already been studied and adopted by other surgical specialities (Vascular, General Surgery, Orthopaedics, etc.), this has not yet been studied in oral and maxillofacial surgery, especially at Boston Medical Center (BMC). During surgery, each participant will undergo our current Enhanced Recovery After Surgery "ERAS" protocol, which includes general anesthesia using inhalational gas, judicious IV fluids, intra-operative steroid and ondansetron (anti-emetic), use of 0.5% bupivacaine local anesthesia per quadrant at surgery end time, use of a throat pack, and orogastric/nasogastric (OG/NG) tube suctioning prior to extubation to minimize ingestion of blood. Pain and anxiety medications prior to and during surgery include 2 mg midazolam, fentanyl per anesthesia, toradol, and dexmedetomidine. Having this protocol will help minimize confounding variables that could affect the primary outcome-- incidence and severity of PONV. The objectives for this research are:
- To evaluate if pre-operative clear CHO help reduce incidence and intensity of PONV.
- To assess if pre-operative clear carbohydrate fluids affect length of hospital stay
- To determine if pre-operative CHO reduce patient's pre-/post-operative anxiety
- To compare the amount/number of opioids and anti-emetics needed post-operatively between the two groups
- To compare ability for patients to return to PO hydration via the amount of fluid ingestion (mL) vs. if they need IV fluids due to decreased PO intake/inability to tolerate PO fluids
- To evaluate if patient Apfel score is also a strong indicator for incidence/severity of PONV
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jun 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 24, 2024
CompletedFirst Posted
Study publicly available on registry
July 1, 2024
CompletedStudy Start
First participant enrolled
June 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
Study Completion
Last participant's last visit for all outcomes
December 1, 2026
April 28, 2026
April 1, 2026
6 months
June 24, 2024
April 27, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Intensity of post operative nausea and vomiting (PONV)
The post operative nausea and vomiting (PONV) intensity scale will be used to assess this outcome. It has 3 questions about nausea and vomiting and a question about the duration of nausea. Scores of 50 or greater are considered clinically important.
6 hours and 24 hours after surgery
PONV based on the visual analog scale
A visual analog scale from 0-10 (0= No nausea, 10= Worst possible nausea/vomiting) competed by the participant after surgery.
6 hours and 24 hours after surgery
Secondary Outcomes (6)
The amount of opioids used for post operative pain
Discharge from hospital usually 1-2 days
The aount of anti-emetics used for PONV
Discharge from hospital usually1-2 days
Frequency of emesis events
Discharge from hospital usually 1-2 days
Post-operative fluid intake by mouth/per os (PO)
Discharge from hospital usually 1-2 days
Need for intravenous (IV) fluids
Discharge from hospital usually 1-2 days
- +1 more secondary outcomes
Other Outcomes (1)
Patient Apfel Score
9 months
Study Arms (2)
Preoperative carbohydrate drink
EXPERIMENTALParticipants randomized into this group will receive a carbohydrate drink before surgery.
Preoperative fasting
NO INTERVENTIONParticipants randomized into this group will be fasting/nothing by mouth (NPO) before surgery.
Interventions
The \>50 g carbohydrate drink will be consumed up to 2 hours prior to surgery.
Eligibility Criteria
You may qualify if:
- Healthy, American Society of Anesthesiologists (ASA) I-II patients undergoing orthognathic surgery (single jaw, double jaw +/- adjunctive procedures including segmental Le Forts/genioplasty/septoplasty/turbinectomy)
- Operating room (OR) time scheduled prior to 12 pm
You may not qualify if:
- Non-English speaking/poor English comprehension
- Patient refusal
- Surgically Assisted Rapid Palatal Expansion (SARPE)
- Orthognathic surgery patients in addition to adjunctive procedures such as temporomandibular joint (TMJ) replacement, fat grafting, liposuction, or septorhinoplasty
- General Anesthesia using total IV anesthesia (TIVA)
- History of gastroesophageal reflux disease (GERD) or patient's with conditions that impair gastrointestinal (GI) motility
- History of motion sickness or postoperative nausea and vomiting (PONV)
- Hx of Diabetes Mellitus, endocrine disorders, or allergy to medications of the study
- Pre-operative scopolamine patch
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Boston Medical Center, Oral and Maxillofacial Surgey
Boston, Massachusetts, 02118, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Angeline Nguyen, DMD
Boston Medical Center, Oral and Maxillofacial Surgery
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 24, 2024
First Posted
July 1, 2024
Study Start (Estimated)
June 1, 2026
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2026
Last Updated
April 28, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share