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Effect of Gum-chewing on Postoperative Recovery of Gut Functions: A Randomised Controlled Clinical Trial

In adults following surgery involving gastric or bowel resection, with or without primary anastomosis, does the addition of regular gum-chewing in the immediate postoperative period compared to standard postoperative care alone reduce recovery time and length of hospital stay?

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12607000538448
Enrollment
240
Registered
2007-10-22
Start date
2008-06-01
Completion date
2011-03-31
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Postoperative impairment of gut function following gastrointestinal surgery is a major cause of delay in resumption of normal oral intake and discharge from hospital. Gum-chewing as a form of sham-feeding (the act of chewing without swallowing) is thought to have a stimulatory effect on the normal reflexes associated with bowel movement. The purpose of this study is to examine whether this simple and cost-efficient treatment helps to improve recovery time following surgery to the gastrointestinal tract.

Interventions

Commercially available sugar-free chewing gum in peppermint flavour. One piece is administered four times a day and the participants in the treatment arm are asked to chew the gum for 15minutes each time. Treatment is commenced as soon as practicable following the surgery (usually on admission to ward) and continue until post-operative day 14 or discharge, whichever occurs earlier.

Sponsors

Division of Surgery, John Hunter Hospital
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
18 Years to -2147483648 No limit
Healthy volunteers
No

Inclusion criteria

Elective surgery involving any form of gastric or bowel resection with or without primary anastomosis.

Exclusion criteria

Patients with known risk of aspiration eg. cognitively or intellectually impaired, previous stroke with residual neurological deficiency involving the facial-oro-pharyngeal muscles. Patients who require prolonged intubation/sedation immediately post-op.

Outcome results

None listed

Source: ANZCTR · Data processed: Mar 23, 2026