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

January 12, 2025 updated by: Katherine Curry, Nova Scotia Health Authority
This study will compare the incidence of postoperative nausea and vomiting during the first 24 hours following corrective jaw surgery (orthognathic surgery) in patients with and without nasogastric tube gastric decompression.

Study Overview

Detailed Description

Postoperative nausea and vomiting (PONV) affects up to 60% of patients after orthognathic surgery. Multiple complex mechanisms contribute to the development of PONV, but gastric pooling of blood is speculated to be the primary stimulus in this type of surgery. Nasogastric (NG) tubes can be used for gastric decompression in the peri-operative period to evacuate gastric contents/blood, with an intent to minimize PONV. This study will directly compare the incidence of PONV in participants undergoing NG tube gastric decompression and those without NG tube gastric decompression in the first 24 hours after orthognathic surgery. Participants will be randomized into two groups including no NG tube gastric decompression or NG tube gastric decompression throughout the surgery with removal one one hour postoperatively. The presence of early and/or delayed PONV will be monitored to determine the impact of NG tube gastric decompression. This study will also evaluate the impact of other variables including type of anesthesia, length of surgery, type of surgery and patient factors on the incidence of PONV in this study population.

Study Type

Interventional

Enrollment (Estimated)

92

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Nova Scotia
      • Halifax, Nova Scotia, Canada, B3H 2Y9
        • Recruiting
        • Victoria General Hospital
        • Contact:
        • Principal Investigator:
          • James Brady, DDS, MD/MSc

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: No NG Gastric Decompression
No NG tube gastric decompression for orthognathic surgery. This group will not have a NG tube inserted. The remainder of their surgical care will be identical to the other group. PONV will be evaluated by nursing and surgical team at two time points in the 24 hour postoperative period (early [0-2 hours] and delayed [2-24 hours]).
Participants in this group will not undergo gastric decompression following orthognathic surgery at our institution.
No Intervention: NG Gastric Decompression
Participants will undergo NG tube gastric decompression according to our institution's typical gastric decompression regimen. Once patients are anesthetized and intubated, and a #14 French NG tube will be inserted in the naris opposite the nasotracheal tube and hooked up to low suction to confirm placement. If in the correct position, gastric contents will be seen in suction tubing. If no gastric contents are seen, the NG tube will be adjusted accordingly. The NG tube will be connected to suction until all stomach contents are effectively removed, as demonstrated by no new secretions in the suction tubing. It will then be disconnected from suction, secured with tape throughout surgery and temporarily hooked back up to suction at the end of surgery to reconfirm position and suction stomach contents present. The NG tube will then be secured and left in place for one hour on intermittent suction following arrival to the recovery unit. After one hour, the NG tube will be removed.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative Nausea and Vomiting
Time Frame: Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).
The primary outcome for this study is PONV characterized by nausea and/or emesis in participants subject to one of two NG tube gastric decompression protocols during the 24-hour postoperative period. This will be characterized by indicating presence of nausea or vomiting with "yes" or "no" at two different time points (early vs delayed PONV).
Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
NG Tube Related Complications/Factors
Time Frame: Intraoperative documentation during NG tube insertion.
Evaluating factors related to NG tubes including the incidence of NG tube-related complications and the length of time taken to successfully insert a NG tube. Any complications will be documented. Length of time taken to insert the tube will be recorded in seconds. This data will be described using percent for incidence and descriptive statistics.
Intraoperative documentation during NG tube insertion.
Incidence of Early vs Delayed PONV in our Study Population
Time Frame: Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).
Evaluate whether participants tend to experience more early (0-2h) or delayed (2-24h) PONV, increasing our understanding of possible precipitants. This will be characterized by indicating presence of nausea or vomiting with "yes" or "no" at two different time points (early [0-2 hours postoperatively] vs delayed [2-24 hours postoperatively]).
Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).
Other Factors Impacting PONV
Time Frame: Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).
Gain better understanding how patient demographics, length of surgery, type of surgery, and type of general anesthesia impact PONV in our study population. Participant's age (years), sex (male or female), smoking status (smoker or non-smoker), history of PONV or motion sickness (positive or negative), length of surgery (from first incision to closure), type of orthognathic surgery (LeFort, BSSO, or both), type of general anesthesia (total intravenous anesthetic vs combined volatile/ intravenous anesthetic) will be evaluated for correlation to PONV in the 24 hour postoperative period.
Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).
Apfel Score as a Predictor of PONV in our Study Population
Time Frame: Apfel score will be determined preoperatively. Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).
Evaluating whether Apfel scores correlate to PONV and can function as an accurate predictor of PONV in our study population.The Apfel score (0-4) will be documented for each patient. Apfel score means for groups experiencing nausea and/or vomiting will be compared to Apfel score means for participants who do not experience nausea and/or vomiting.
Apfel score will be determined preoperatively. Participants will be assessed for early PONV (0-2 hours postoperatively) and delayed PONV (2-24 hours postoperatively).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: James Brady, DDS/MD, NSHA

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 4, 2024

Primary Completion (Estimated)

July 1, 2025

Study Completion (Estimated)

December 1, 2025

Study Registration Dates

First Submitted

May 15, 2024

First Submitted That Met QC Criteria

May 15, 2024

First Posted (Actual)

May 21, 2024

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

January 12, 2025

Last Verified

January 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

This data will be anonymous. Participants will only be consenting to participate in this study. There is no future studies planned using this study data.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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