why choose us

300×250 Ad Slot

Research Article: Perioperative nutritional support is associated with attenuated early postoperative albumin decline after gastrectomy for gastric cancer: a retrospective cohort study and machine learning prediction model

Date Published: 2026-07-08

Abstract:
Perioperative nutritional support is recommended for surgical patients at nutritional risk, but its relationship with early postoperative serum albumin recovery after gastrectomy for gastric cancer remains uncertain, and clinicians lack practical tools to identify patients most likely to show early albumin improvement. We conducted a retrospective cohort study of 1,529 adults who underwent gastrectomy for gastric cancer at The Fourth Hospital of Hebei Medical University between January and December 2017 and had both preoperative and early postoperative albumin measurements. Perioperative nutritional support was defined using the binary classification available in the source dataset. The primary outcome was postoperative albumin improvement, defined as postoperative albumin exceeding the preoperative value. Secondary outcomes were postoperative total protein improvement and change in albumin (postoperative minus preoperative). Associations were assessed using multivariable linear and logistic regression, and a gradient boosting model using 46 routinely collected preoperative and perioperative variables was developed to predict albumin improvement. Albumin improved in 233 of 1,529 patients (15.2%) and was more common in the nutritional support group than in the no/standard support group (19.2% vs. 12.8%; p =?0.001). In adjusted analyses, nutritional support was associated with a higher ? albumin ( ? =?0.572?g/L, 95% CI 0.111–1.033; p =?0.015), whereas the adjusted association with binary albumin improvement was imprecise (OR?=?1.331, 95% CI 0.982–1.805; p =?0.065). The gradient boosting model achieved an AUROC of 0.711 and an AUPRC of 0.422 on the held-out test set. Perioperative nutritional support was associated with an attenuated early postoperative decline in serum albumin after gastrectomy for gastric cancer, and the prediction model showed moderate discrimination for early albumin improvement. External validation and prospective evaluation are needed before clinical deployment.

Introduction:
Perioperative nutritional support is recommended for surgical patients at nutritional risk, but its relationship with early postoperative serum albumin recovery after gastrectomy for gastric cancer remains uncertain, and clinicians lack practical tools to identify patients most likely to show early albumin improvement.

Read more

300×250 Ad Slot