Effects of chewing gum on gastric distention in patients undergoing laparoscopic cholecystectomy

ISRCTN ISRCTN10985036
DOI https://doi.org/10.1186/ISRCTN10985036
Submission date
30/09/2024
Registration date
09/10/2024
Last edited
11/10/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Digestive System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
This study aims at consenting adult (≥ 18 years old) patients undergoing laparoscopic cholecystectomy due to gallstones or gallbladder polyps. It will involve chewing gum 30 minutes before the procedure to help decrease gastric distention and promote safer surgery through better visualization of vital structures.

Who can participate?
Adult patients (≥ 18 years old) undergoing laparoscopic cholecystectomy due to gallstones or gallbladder polyps

What does the study involve?
Participants will chew gum 30 minutes before their procedure to help decrease gastric distention. The study will compare the outcomes with standard procedures to assess the effects of this intervention.

What are the possible benefits and risks of participating?
While patients may not directly benefit, the study may provide valuable information on the efficacy of chewing gum in decreasing gastric distention before laparoscopic cholecystectomy. This could potentially reduce the use of nasogastric tubes and decrease hospital stay lengths. Risks include common complications of Laparoscopic Cholecystectomy such as:
1. Conversion to open cholecystectomy (2 - 7%)
2. Biliary duct injury (0.4 - 0.6%) or biliary fistulas (0.5%)
3. Vascular injury (0.3%) or postoperative bleeding (0.5%)
4. Intestinal injury (0.09%)
5. Infections (4%)
6. Other complications related to anesthesia and patient comorbidities.

Where is the study run from?
The study will be run from Bulacan Medical Center, City of Malolos, Bulacan.

When is the study starting and how long is it expected to run for?
November 2022 to May 2024

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr. Sofia Isabel Ribeiro - Yadav, sisabelribeiro94@gmail.com.

Contact information

Dr Sofia Isabel Ribeiro - Yadav
Public, Scientific, Principal Investigator

99 Potenciano Street, Department of Surgery, Bulacan Medical Center, Brgy. Mojon
City of Malolos
3000
Philippines

ORCiD logoORCID ID 0009-0004-3584-7380
Phone +63 915 518 1032
Email sisabelribeiro94@gmail.com

Study information

Study designSingle-blind randomized controlled study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital, Medical and other records
Study typeEfficacy
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleEffects of chewing gum on gastric distention in patients undergoing laparoscopic cholecystectomy: a single centre study
Study hypothesisChewing gum has been proven time and again for use in promoting gastrointestinal motility post-operatively, especially in patients who undergo colorectal surgery. This study aims to use chewing gum preoperatively to decrease gastric distention thereby promoting better visualization of vital structures during laparoscopic cholecystectomy.

The hypothesis is that chewing gum will aid in decreasing gastric distention.
Ethics approval(s)

Approved 27/05/2024, Research Ethics Committee (La Consolacion University Philippines, Bulihan, City of Malolos, 3000, Philippines; +63 44 931 8600; research.ethics.comm@email.lcup.edu.ph), ref: 1062/202405-YadavS00

ConditionThe effect of chewing gum on gastric distention in patients undergoing laparoscopic cholecystectomy
InterventionAll consenting patients underwent Laparoscopic Cholecystectomy only from November 1, 2022, to May 31, 2024.

Participants will undergo random sampling and be assigned to group NG (“no gum”) and group CG (“chewing gum”).

Pre-operative Chewing Gum is the intervention.

A locally branded xylitol-based mint-flavoured chewing gum was provided to the study participants randomly assigned to the "Chewing Gum" (CG) group by junior general surgery resident doctors to chew for 30 minutes before their transfer to the operating room.

The intervention took place in the surgery ward.

The intervention was only delivered once, 30 minutes before the patient's scheduled operation.

No tailoring was done.

There were no modifications done to the intervention during the study.

Adherence to the trial participant's chewing of gum was assessed using a checklist accomplished by junior general surgery resident doctors wherein the participant was asked to start chewing their gum under direct observation of the junior general surgery resident and also asked to dispose of their gum after 30 minutes in front of the same observer.
Intervention typeProcedure/Surgery
Primary outcome measureThe visual presence of gastric distention during the performance of limited diagnostic laparoscopy measured using nasogastric tubes at the start of the procedure.
If (+) gastric distention impedes visualization and identification of vital structures, then a nasogastric tube will be used before proceeding with the cholecystectomy.
If (-) gastric distention, the no nasogastric tube will be used and the senior general surgery resident doctor will proceed with the cholecystectomy.
Secondary outcome measures1. Duration of hospitalization measured using the number of hospital days per patient recorded in study notes at one timepoint
2. Decrease in operative time measured using the mean of the number of minutes per procedure recorded in study notes at one timepoint
3. If this intervention provides additional discomfort to the patient measured using the Wong-Baker Faces Pain Scale 8 hours post-operatively
4. If the intervention adds additional costs to the patient measured using descriptive methods as chewing gum in the Philippines is Php 1.00 (which is approx. GBP 0.01) at one timepoint
5. If the intervention helps in decreasing intraoperative injuries measured using descriptive methods at one timepoint
Overall study start date01/11/2022
Overall study end date31/05/2024

Eligibility

Participant type(s)Patient
Age groupMixed
Lower age limit18 Years
Upper age limit99 Years
SexBoth
Target number of participants176
Total final enrolment190
Participant inclusion criteria1. Aged 18 years and older
2. Undergo elective laparoscopic cholecystectomy
3. Indication of cholelithiasis or gallbladder polyp
4. Agree to participate in the study
5. Operations performed by general surgery residents of the same level of training
Participant exclusion criteria1. Patients aged less than 18 years old
2. Undergo laparoscopic cholecystectomy with other pathologies
3. Performed by general surgery consultants/attendings
4. Those who do not undergo laparoscopic cholecystectomy
5. Oesophageal intubation
6. Patients who do not agree to participate
7. Patients who have undergone previous gastric surgery
8. Patients at risk of aspiration
Recruitment start date01/11/2022
Recruitment end date23/05/2024

Locations

Countries of recruitment

  • Philippines

Study participating centre

Bulacan Medical Center
99 Potenciano St., Department of Surgery, Bulacan Medical Center, Brgy. Mojon
City of Malolos
3000
Philippines

Sponsor information

Bulacan Medical Center
Hospital/treatment centre

99 Potenciano St., Department of Surgery, Brgy. Mojon
City of Malolos
3000
Philippines

Phone +63 (44) 791-0630
Email bmc.trinidad25@gmail.com
Website https://bulacan.gov.ph/health/bulacan-medical-center/

Funders

Funder type

Hospital/treatment centre

Bulacan Medical Center, Department of Surgery

No information available

Results and Publications

Intention to publish date31/05/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication to SAGES Surgical Endoscopy.
IPD sharing planData requests can be submitted starting 9 months after article publication and the data will be made accessible for up to 24 months. Extensions will be considered on a case-to-case basis.

Access to trial IPD can be requested by qualified researchers engaging in independent scientific research and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a Data Sharing Agreement (DSA). For more information or to submit a request, please contact sisabelribeiro94@gmail.com

Editorial Notes

11/10/2024: The Individual participant data (IPD) sharing plan and summary were added.
07/10/2024: It was noted that upon receiving approval from the Hospital Director and Department Chairman on 01/11/2022, the research team initiated the recruitment process and data collection, adhering to strict ethical standards by obtaining signed consent forms from all participants and providing the standard of care, despite the absence of an Ethics Committee and limited mobility due to the COVID-19 pandemic.
30/09/2024: Study's existence confirmed by the La Consolacion University Philippines, Bulihan.