| Unique ID issued by UMIN | UMIN000059676 |
|---|---|
| Receipt number | R000068158 |
| Scientific Title | Impact of the Revised Nutrition Protocol on Gastrointestinal Adverse Events and Nutritional Adequacy in Intensive Care Unit Patients: A Retrospective Observational Study |
| Date of disclosure of the study information | 2025/11/07 |
| Last modified on | 2025/11/07 12:09:06 |
A Retrospective Study on the Implementation and Outcomes of the Revised Nutrition Protocol in Intensive Care Unit Patients
ICU Nutrition Protocol Revision Study
Impact of the Revised Nutrition Protocol on Gastrointestinal Adverse Events and Nutritional Adequacy in Intensive Care Unit Patients: A Retrospective Observational Study
Effect of ICU Nutrition Protocol Revision
| Japan |
Adult patients(over 18 years old) admitted to the intensive care unit (ICU)
| Medicine in general | Surgery in general | Intensive care medicine |
Malignancy
NO
The aim of this study is to clarify the incidence and characteristics of gastrointestinal adverse events under the implementation of a standardized nutrition protocol in critically ill patients. Specifically we will evaluate the incidence and temporal trends of gastrointestinal symptoms such as constipation diarrhea and vomiting during enteral nutrition and assess their association with the amount of nutritional intake. As secondary analyses we will calculate each patients nutritional adequacy rate (the ratio of administered to required energy and protein intake) and assess the protocol achievement level in our ICU. These findings will help identify current challenges and guide improvements in enteral nutrition procedures and preventive measures for gastrointestinal complications.
Efficacy
Data extracted from medical records will include
Patient characteristics age sex height weight (BMI) admission diagnosis and main ICU condition (e.g. trauma sepsis postoperative management).
Severity indicators: APACHE II and SOFA scores at ICU admission.
Clinical course: ICU admission/discharge dates, duration of mechanical ventilation, types and duration of sedatives, anesthetics, and opioids (as potential factors affecting gut motility).
Nutrition management: day of enteral nutrition initiation (days from ICU admission) route of administration (nasogastric nasojejunal etc.) type of formula (product name fiber content) and use of parenteral nutrition.
Nutritional intake: daily enteral feeding rate volume (mL/day) caloric intake (kcal/day) and protein intake (g/day) including interruptions and reasons.
Gastrointestinal symptoms: daily bowel movements stool consistency (including Bristol scale scores) vomiting events (frequency and content) and gastric residual volume.
Calculated variables:
Required energy/protein: estimated using institutional protocols or established formulas.
Cumulative intake: total energy and protein administered via enteral and parenteral routes.
Nutritional adequacy rate: percentage of actual intake vs. requirement evaluated for the first 7 days and overall ICU stay.
Time to first defecation: days from ICU admission to first bowel movement (constipation defined as >3 days without defecation).
Days with diarrhea: frequency and duration of diarrhea episodes.
Time to onset of GI symptoms: interval between enteral nutrition initiation and occurrence of vomiting or abdominal distension.
Interventional
Single arm
Non-randomized
Open -no one is blinded
Historical
1
Treatment
| Medicine | Food | Other |
Intervention period:
January 1 2022 December 31 2023 (Old nutrition protocol group approximately 200 patients)
January 1 2024 December 31 2025 (New nutrition protocol group approximately 100 patients)
Patients are managed according to institutional enteral nutrition protocols. The new protocol includes earlier initiation stepwise dose escalation and use of fiber-containing formulas when tolerated.
| 18 | years-old | <= |
| Not applicable |
Male and Female
Diagnosis: all eligible ICU cases
Disease stage: all stages included
Age over 18 years at enrollment
All sexes included
Patients admitted to the ICU during the study period
Patients deemed unsuitable for the nutrition protocol by the attending physician
Patients with DNAR orders or those receiving palliative treatment
Patients under 18 years of age
300
| 1st name | kaori |
| Middle name | |
| Last name | kajitani |
Tohoku University Hospital
ICU
9808574
1-1 seiryomachi aobaku senndai miyagi japan
0227177691
kaori.kajitani.b8@tohoku.ac.jp
| 1st name | masaki |
| Middle name | |
| Last name | abe |
Tohoku University Hospital
ICU
9808574
1-1 seiryomachi aobaku senndai miyagi japan
0227177691
masaki.abe.e1@tohoku.ac.jp
Tohoku University Hospital
Tohoku University Hospital
Other
Tohoku University Hospital ICU
1-1 seiryomachi aobaku senndai miyagi japan
0227177691
masaki.abe.e1@tohoku.ac.jp
NO
| 2025 | Year | 11 | Month | 07 | Day |
Unpublished
Preinitiation
| 2022 | Year | 01 | Month | 01 | Day |
| 2025 | Year | 12 | Month | 01 | Day |
| 2027 | Year | 12 | Month | 31 | Day |
| 2025 | Year | 11 | Month | 07 | Day |
| 2025 | Year | 11 | Month | 07 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068158