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An evaluation of the Clear Fluids Diet: A comparison between patients commencing on Clear Fluids or Free Fluids and the effect this has on post-operative outcomes after elective large bowel surgery.

The efficacy of the Clear Fluids Diet: The effect on post-operative outcomes when patients are commenced on either Clear Fluid or Free Fluid Diets post elective colorectal surgery.

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12609000955213
Enrollment
80
Registered
2009-11-05
Start date
2010-02-01
Completion date
Unknown
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

The aim of this trial is find out the best type of fluids for patients after elective large bowel surgery. Nutrition plays an important role in recovering after surgery. At the moment after elective large bowel surgery, patients are fasted for a period before starting on a ‘clear fluids’ diet. If this is tolerated, they progress to ‘free fluids’ diet, then light diet, and then full diet. The theory is that there is no difference in outcomes, and therefore it will be safe to commence 'free fluids' as a first diet type post elective large bowel surgery

Interventions

Patients commence on sips of water ad libitum day 1 post-operatively. Once the treating surgeon deems the patient appropriate to commence fluids, they will start on Free Fluids ad libitum, (usually for 1-4 days), then Light Diet ad libitum (1-2 days) and then to Full Diet ad libitum (until discharged) Free Fluids are defined as low fibre foods which are fluid like in nature at room temperature including, all Clear Fluids, milk and soy based drinks and nutrition supplements, strained porridge, pu

Patients commence on sips of water ad libitum day 1 post-operatively. Once the treating surgeon deems the patient appropriate to commence fluids, they will start on Free Fluids ad libitum, (usually for 1-4 days), then Light Diet ad libitum (1-2 days) and then to Full Diet ad libitum (until discharged) Free Fluids are defined as low fibre foods which are fluid like in nature at room temperature including, all Clear Fluids, milk and soy based drinks and nutrition supplements, strained porridge, pureed soup, ice-cream, plain yoghurt and custard

Sponsors

Peninsula Health
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Primary purpose
Treatment

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patients undergoing elective colorectal surgery who would require clear fluids post operatively

Exclusion criteria

Patients receiving enteral or parenteral nutrition support

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026