Annals of Clinical Nutrition and Metabolism

Impact of tube feeding after pancreaticoduodenectomy on nutritional intake and status: a retrospective cohort study in Japan: Masaharu Ishida, Masahiro Iseki, Shuichiro Hayashi, Aya Noguchi, Hideaki Sato, Shingo Yoshimachi, Akiko Kusaka, Mitsuhiro Shimura, Shuichi Aoki, Daisuke Douchi, Takayuki Miura, Shimpei Maeda, Masamichi Mizuma, Kei Nakagawa, Takashi Kamei, Michiaki Unno; Ann Clin Nutr Metab 2025;17(3):203-209. Published online December 1, 2025; DOI: https://doi.org/10.15747/ACNM.25.0020

Graphical Abstract Abstract PDF: Purpose
Pancreaticoduodenectomy (PD) is one of the most invasive procedures in gastrointestinal surgery. However, the clinical significance of postoperative tube feeding remains unclear. This study investigated the impact of enteral nutrition (EN) on the postoperative nutritional status of patients undergoing PD.
Methods
We retrospectively analyzed 129 patients who underwent PD at Tohoku University Hospital. Nutritional intake and status, evaluated using the Controlling Nutritional Status score, were compared between two groups: an EN group (97 patients) and a non-EN group (32 patients).
Results
There were no significant differences between the two groups in age, sex, body mass index, underlying diseases, operative duration, blood loss, postoperative pancreatic fistula, postoperative complications, delayed gastric emptying, or length of hospital stay. Although the EN group showed improvements in nutritional status both at discharge and compared with preoperative values, none of these changes reached statistical significance. Oral caloric intake was significantly higher in the non-EN group (P=0.01). In contrast, total energy intake was higher in the EN group, but this difference did not reach statistical significance (P=0.07).
Conclusion
Tube feeding after PD did not significantly influence postoperative nutritional status or overall nutritional intake. These findings suggest that EN offers no clear advantage over other approaches; however, further research is warranted to validate these results, refine existing guidelines, and optimize postoperative patient management.

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Role of preoperative immunonutrition in patients with colorectal cancer: a narrative review: Soo Young Lee, Hyeung-min Park, Chang Hyun Kim, Hyeong Rok Kim; Ann Clin Nutr Metab 2023;15(2):46-50. Published online August 1, 2023; DOI: https://doi.org/10.15747/ACNM.2023.15.2.46

Purpose: Colorectal cancer surgery presents challenges due to surgical stress and immunosuppression, leading to postoperative complications. Nutrition is crucial for colorectal cancer patients who are prone to malnutrition. This study aims to provide a comprehensive review of the role of preoperative immunonutrition in colorectal cancer surgery.
Current concept: Preoperative immunonutrition, consisting of immunonutrients such as arginine, ω-3 fatty acids, and nucleotides, has emerged as a potential strategy to enhance surgical outcomes by modulating immune responses and reducing complications. Current guidelines recommend preoperative oral nutritional supplements for major abdominal surgery and immunonutrition for nutritionally high-risk patients. Meta-analysis have demonstrated significant decreases in infectious complications and hospital stay durations with preoperative immunonutrition. However, limitations such as publication bias and heterogeneity in the previous studies should be considered. Further research should focus on the optimal timing, duration, and amount of immunonutrition; the patient populations that would benefit most; and the integration of immunonutrition into enhanced recovery after surgery protocols.
Conclusion: While preoperative immunonutrition shows promise, additional research is crucial to refine protocols and establish optimal clinical practice utilization.

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The 2024 Korean Enhanced Recovery After Surgery (ERAS) guidelines for colorectal cancer: a secondary publication
Kil-yong Lee, Soo Young Lee, Miyoung Choi, Moonjin Kim, Ji Hong Kim, Ju Myung Song, Seung Yoon Yang, In Jun Yang, Moon Suk Choi, Seung Rim Han, Eon Chul Han, Sang Hyun Hong, Do Joong Park, Sang-Jae Park
Annals of Coloproctology.2025; 41(1): 3. CrossRef
Efficacy of preoperative immunonutrition in malnourished patients undergoing colorectal cancer surgery: a study protocol for a multicenter randomized clinical trial
Soo Young Lee, Chang Hyun Kim, Gi Won Ha, Soo Yeun Park, In Jun Yang, Jin Soo Kim, Gyung Mo Son, Sung Il Kang, Sung Uk Bae
Trials.2025;[Epub] CrossRef
The 2024 Korean Enhanced Recovery After Surgery guidelines for colorectal cancer
Kil-yong Lee, Soo Young Lee, Miyoung Choi, Moonjin Kim, Ji Hong Kim, Ju Myung Song, Seung Yoon Yang, In Jun Yang, Moon Suk Choi, Seung Rim Han, Eon Chul Han, Sang Hyun Hong, Do Joong Park, Sang-Jae Park
Annals of Clinical Nutrition and Metabolism.2024; 16(2): 22. CrossRef

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Effect of Probiotics/Synbiotics on Postoperative Outcomes in Patients Undergoing Abdominal Surgery: In Ja Park; Ann Clin Nutr Metab 2022;14(1):10-19. Published online June 1, 2022; DOI: https://doi.org/10.15747/ACNM.2022.14.1.10

Abstract PDF

Environmental factors, drugs, diet, and surgery alter the composition of the gut microbiota leading to the production of different metabolites or toxins that can cause disease or delay postoperative recovery. Surgical damage leads to gut barrier disruption, increased intestinal permeability, gut microbial imbalance, and immunologic compromise of the host with subsequent bacterial translocation from the gastrointestinal tract to systemic circulation. Therefore, perioperative stabilization of the intestinal microbiota is a potential method of reducing postoperative complication rates. Probiotics have been proposed as a viable option for prophylaxis of postoperative infections through increased intestinal motility to prevent bacterial overgrowth, improve gut barrier function, and modulate immune response. This review investigates microbial changes after surgery and the influence of probiotics on postoperative microbial composition. Infectious postoperative complications and immunologic changes related to probiotics/synbiotics were also reviewed in patients who underwent abdominal surgery.

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Citations to this article as recorded by

Postoperative gut dysbiosis and its clinical implications, with an emphasis on probiotic strategies in gastric cancer patients undergoing gastrectomy: a narrative review
Cheong Ah Oh
Ann Clin Nutr Metab.2025; 17(2): 114. CrossRef
Formoterol promotes mitochondrial biogenesis, improves liver regeneration, and suppresses liver injury and inflammation after liver resection in mice with endotoxemia
Amir K Richardson
International Journal of Physiology, Pathophysiology and Pharmacology.2025; 17(4): 131. CrossRef
Probiotics in the Management of Surgery- Induced Diarrhea: Efficacy and Clinical Applications
P. Dhivyaprasath, Gayathri R, Poovitha M, Rabiyath Riswana M, Sabithra P, Susitha R
International Journal of Innovative Science and Research Technology.2024; : 1482. CrossRef

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