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Fiber-Enriched Enteral Nutrition and Opioid-Induced Constipation in the ICU

The Effects of Fiber Content in Enteral Nutrition Products on Opioid-Induced Constipation in Intubated Patients

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07201428
Enrollment
80
Registered
2025-10-01
Start date
2024-12-20
Completion date
2025-08-30
Last updated
2025-10-01

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

Conditions

Constipation, Opioid-Induced

Keywords

constipation, opioid, mechanical ventilation, sedation

Brief summary

Opioid use for sedation and analgesia is widespread among mechanically ventilated ICU patients, often leading to gastrointestinal dysfunction and opioid-induced constipation (OIC). While enteral nutrition (EN) is routinely used in critical care, the role of fiber-enriched EN formulas in preventing OIC remains unclear. This prospective quasi-randomized study aims to evaluate whether fiber-containing EN products reduce the incidence and severity of OIC compared to fiber-free formulations in intubated ICU patients. The findings may contribute to optimizing nutritional strategies to mitigate constipation-related complications in this high-risk population.

Detailed description

The use of opioids for sedation and analgesia is common among intensive care unit (ICU) patients requiring mechanical ventilation. However, frequent and sometimes high-dose opioid administration can lead to gastrointestinal dysfunction and complications such as constipation. These complications are associated with increased risk of gastric content aspiration, suboptimal nutritional intake, prolonged ICU stays, and higher mortality rates. Enteral nutrition (EN) is routinely administered to ICU patients unless there is a contraindication to gastrointestinal feeding . EN products are formulated with diverse compositions to address the needs of ICU patients, who represent a highly heterogeneous population. High-fiber EN formulations are typically used in patients with diarrhea or constipation. However, current literature lacks evidence regarding the efficacy of fiber-enriched EN in reducing constipation among intubated ICU patients. In the study, the investigator aim to investigate whether high-fiber EN products have an effect on opioid-induced constipation compared to fiber-free products in intubated patients.

Interventions

None listed

Sponsors

Sisli Hamidiye Etfal Training and Research Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

* All patients over the age of 18 who are initiated on enteral nutrition and are on mechanical ventilation will be included in the study.

Exclusion criteria

* Pediatric and pregnant patients * Life expectancy less than 24 hours * Gastrointestinal surgery within the last week * Intra-abdominal pressure \> 15 mmHg * Shock requiring high vasopressor support * Contraindication to enteral nutrition * Intubation \>48 hours

Design outcomes

Primary

MeasureTime frameDescription
the day of first defecation1-7 daysThe definition of first defecation was defined as stool volume \>100 ml

Secondary

MeasureTime frameDescription
Need for enema use1-7 daysIndication for constipation and need for enema use

Countries

Turkey (Türkiye)

Outcome results

None listed

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