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Retrospective Cohort Study
Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Gastrointest Surg. Mar 27, 2026; 18(3): 115621
Published online Mar 27, 2026. doi: 10.4240/wjgs.v18.i3.115621
Correlation between the initiation of early enteral nutrition and anastomotic fistula after pancreaticoduodenectomy
Bei Yan, Li-Qun Zhang, Yi-Qing Shen
Bei Yan, Li-Qun Zhang, Department of General Surgery, First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
Yi-Qing Shen, Department of Comprehensive Surgery the Transformation Center, First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
Author contributions: Yan B research implementation and paper drafting; Zhang LQ data collation and analysis; Shen YQ research design and paper review.
Institutional review board statement: This study was reviewed and approved by the Institutional Review Board of First Affiliated Hospital of Soochow University, No. 20251270.
Informed consent statement: All study participants and their legal guardians provided written informed consent before recruitment.
Conflict-of-interest statement: The authors declare no conflicts of interest.
STROBE statement: The authors have read the STROBE Statement-checklist of items, and the manuscript was prepared and revised according to the STROBE Statement-checklist of items.
Data sharing statement: No additional data are available.
Corresponding author: Yi-Qing Shen, Chief Nurse, Department of Comprehensive Surgery the Transformation Center, First Affiliated Hospital of Soochow University, No. 899 Pinghai Road, Suzhou 215006, Jiangsu Province, China. 1149750425@qq.com
Received: November 21, 2025
Revised: December 25, 2025
Accepted: January 22, 2026
Published online: March 27, 2026
Processing time: 126 Days and 3.5 Hours
Abstract
BACKGROUND

Pancreaticoduodenectomy (PD) is a key surgical procedure for treating pancreatic head and periampullary tumors. Postoperative anastomotic leakage (AL) is a common, yet serious, complication. However, the relationship between the timing of early enteral nutrition (EEN) and the risk for AL remains controversial, which prompted this single-center retrospective cohort study including data from patients who underwent PD at the authors’ institution between January 2023 and December 2024.

AIM

To investigate the correlation between the timing of initiating EEN and the incidence of postoperative AL after PD.

METHODS

Patients who underwent PD were divided into 2 groups (n = 100 each) based on initiation of postoperative EEN: Study (≤ 24 hours); and control (> 72 hours). The incidence of total postoperative AL, pancreatic, biliary, and gastrointestinal fistulas, serum albumin (ALB), prealbumin (pre-ALB), and transferrin (TF), time to recovery of bowel sounds, first flatus and defecation, and length of postoperative hospital stay were compared. Multivariate logistic regression was used to determine whether EEN was an independent protective factor against AL.

RESULTS

Serum ALB, pre-ALB, and TF levels in the study group were significantly higher, and times to recovery of bowel sounds, first flatus and defecation, and length of postoperative hospital stay were significantly shorter in the study group than those in the control group (P < 0.05). Furthermore, the total incidence of AL and grade B/C pancreatic fistulas were significantly lower (P < 0.05), with no statistical difference in the incidence of biliary and gastrointestinal fistulas between the 2 groups (P > 0.05). Multivariate logistic regression analysis revealed that initiating EEN ≤ 24 hours after surgery was an independent protective factor against AL, whereas soft pancreatic texture, pancreatic duct diameter < 3 mm, and prolonged operative duration were independent risk factors.

CONCLUSION

Initiating EEN ≤ 24 hours after PD reduces the incidence of total AL and pancreatic fistulas, effectively improving postoperative nutritional status, accelerating recovery of gastrointestinal function, and shortening hospital stay.

Keywords: Pancreaticoduodenectomy; Early enteral nutrition; Postoperative anastomotic leakage; Nutritional status; Time to recovery

Core Tip: This retrospective cohort study, involving data from 200 patients who underwent pancreaticoduodenectomy, revealed that initiating early enteral nutrition (EEN) ≤ 24 hours versus > 72 hours postoperatively, was an independent protective factor against total anastomotic leakage and clinically relevant (grade B/C) pancreatic fistulas. EEN was also associated with significantly improved nutritional status (serum albumin, prealbumin, and transferrin levels), accelerated recovery of gastrointestinal function, and shortened hospital stay. These findings challenge traditional delayed feeding practices and support the integration of EEN into enhanced recovery pathways for this major surgery.