• Department of Hepatobiliary and Pancreatic Surgery, The Fifth Affiliated Hospital of Xinjiang Medical University (The Fifth Clinical Medical College of Xinjiang Medical University), Urumqi 830011, P. R. China;
XU Xinjian, Email: xxj0991@163.com
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Objective To evaluate the predictive value of the geriatric nutritional risk index (GNRI) for postoperative overall and severe complications after pancreaticoduodenectomy (PD) in the elderly patients with pancreatic cancer. Methods The clinical data of the elderly (65 years old or more) patients with pancreatic cancer underwent PD were retrospectively collected, who were admitted to the Department of Hepatobiliary and Pancreatic Surgery, the Fifth Affiliated Hospital of Xinjiang Medical University from January 2017 to October 2021. The incidences of postoperative overall and severe complications (Clavien-Dindo grade Ⅲ–Ⅴ was defined as severe complications) were summarized. The univariate and multivariate logistic regression models were used to analyze whether GNRI was a risk factor for overall and severe complications after PD. The area under the receiver operating characteristic curve (AUC) was used to evaluate the ability of GNRI to distinguish whether overall or severe complications occurred after PD and to confirm the optimal threshold. Then the patients were assigned into a high nutritional risk group (greater than the optimal threshold) and low nutritional risk group (the optimal threshold or less) based on this. Simultaneously, the clinical outcomes of the two groups were compared. Results In this study, 190 elderly patients with pancreatic cancer were enrolled, 95(50.0%) of whom developed complications, including 28(29.5%) cases of serious complications. The results of multivariate logistic regression model analysis showed that the decreased GNRI was a risk factor for the occurrence of overall and severe complications after PD for the elderly patients [OR(95%CI)=0.195(0.065, 0.592), P=0.004; OR(95%CI)=0.890(0.823, 0.906), P=0.003]. The AUC of GNRI for assessing the occurrence of overall and severe complications was 0.765 and 0.715, respectively, with the optimal critical values of 98 and 96, respectively. Compared with the low nutritional risk group, the high nutritional risk group had higher postoperative total hospitalization costs (Z=–2.49, P=0.013), higher occurrences of overall complications (χ2=44.609, P<0.001) and severe complications (χ2=7.889, P=0.005), and higher occurrences of pancreatic fistula and gastric emptying disorders (χ2=17.682, P<0.001; χ2=4.975, P=0.026). Conclusions In elderly patients with pancreatic cancer underwent PD, incidence of serious complications is not lower. GNRI has a good discriminative value in terms of postoperative overall and severe complications. When preoperative GNRI is 98 or less and GNRI is 96 or less, patients should be given early preoperative nutritional support treatment in time.

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