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Optimizing Postoperative Nutrition in Colorectal Surgery

Optimizing Postoperative Nutrition in Colorectal Surgery: a Prospective Randomized Clinical Trial.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06737211
Acronym
OPTI-NUTRICS
Enrollment
200
Registered
2024-12-17
Start date
2024-12-01
Completion date
2025-11-20
Last updated
2026-01-06

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

Conditions

Bowel Ischemia, Colorectal Cancer, Inflammatory Bowel Diseases, Malnutrition, Parenteral Nutrition

Keywords

peripheral parenteral nutrition, postoperative outcomes, colorectal surgery, colorectal cancer, inflammatory bowel disease, bowel ischemia

Brief summary

Major surgical operations of the gastrointestinal tract, such as colorectal resections due to several diseases, lead to significant burden on the human body, which is expressed during the first postoperative hours with an intense inflammatory reaction and consumption of a large amount of energy, increasing nutritional requirements of the patients. Therefore, specific protocols have been implemented for the early initiation of oral feeding in patients undergoing colorectal resections. However, it is not feasible for every patient to meet them due to several reasons, such as old age and associated pathophysiological changes, use of opioid drugs for the management of postoperative pain, which is associated with postoperative ileus or nausea, as well as open resection which lead to gastrointestinal impairment during the first postoperative days. The energy deficit that occurs during the early postoperative period, which appears to be associated with adverse clinical outcomes, can be counterbalanced by the administration of parenteral nutrition. However, the conventional way of administration through central venous lines is associated with significant complications. For this reason, administration of parenteral nutrition through a peripheral venous catheter could be used alternatively, which avoids morbidity and has been also effective in maintaining the patients' energy balance, even during the first postoperative hours. Therefore, the main purpose of the present study is to investigate the efficacy of the administration of peripheral parenteral nutrition on the postoperative outcomes of patients undergoing colorectal resections. Moreover, the correlation of the administration of peripheral parenteral nutrition with the reaction to post-operative stress and with the nutritional status of the patients post-operatively, which are determining factors for the clinical course of these patients, will be investigated.

Interventions

2000 mL of peripheral parenteral nutrition with electrolytes (20 mL 7.45% KCl, 10 mL 20% MgSO4 and 20 mL 8.7% Na3PO4) will be administered via a peripheral venous catheter with a rhythm of 80cc/h from the time they will leave the operation room and will be transferred to the ward or the critical care unit (CCU) until the 5th postoperative day

Sponsors

National and Kapodistrian University of Athens
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 95 Years
Healthy volunteers
No

Inclusion criteria

* Colorectal resection surgery * Open or laparoscopic procedures * Anastomosis, end-stoma or defunctioning stoma formation after colorectal resection * Elective or emergent procedures * Diagnosis of colorectal cancer, inflammatory bowel disease, diverticular disease and bowel ischemia * Small bowel resection combined with colorectal resection * Age \> 18 years old * Informed consent

Exclusion criteria

* Small bowel resection without colorectal resection * End-stoma or defunctioning stoma formation without colorectal resection * Preoperative parenteral nutrition administration * Administration of parenteral nutrition after the 4th postoperative day * Peripheral parenteral nutrition initiation after the 1st postoperative day * Contraindication for peripheral parenteral nutrition administration * Age \< 18 years old * No informed consent

Design outcomes

Primary

MeasureTime frameDescription
Postoperative Surgical Stress and Short-term Nutritional Status5 postoperative daysSerum nutritional markers and acute phase proteins indicating postoperative surgical stress response.

Secondary

MeasureTime frameDescription
Nasogastric tube removal30 postoperative daysPostoperative day of nasogastric tube removal
Feeding start30 postoperative daysPostoperative day of feeding start
Postoperative Morbidity90 postoperative daysComplications after surgery and their classification according to Calvin-Dindo score.
Opioid sparing analgesia30 postoperative daysUtilization of epidural sparing catheter
Peripheral Parenteral Nutrition - associated complications30 postoperative daysThrombophlebitis, hyperglycemia, re-feeding syndrome
Early mobilization30 postoperative daysPostoperative day of mobilization

Countries

Greece

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026