Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2026
[Risk factors for perioperative acute kidney injury following partial nephrectomy in patients with stage 3 chronic kidney disease].
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Xiao Ruotao, Xie Zhifei, Hong Peng, Yang Bin, Liu Lei, Zhang Shudong
Аннотация
OBJECTIVE: To explore the risk factors for acute kidney injury (AKI) in patients with stage 3 chronic kidney disease (CKD) after partial nephrectomy.
METHODS: The clinical data of 126 stage 3 CKD patients who underwent partial nephrectomy at Peking University Third Hospital from January 2013 to December 2025 were retrospectively analyzed. Demographic characteristics, comorbidities, surgical-related indicators, and laboratory data of the patients were collected. AKI was defined according to the Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Univariate and multivariate regression analyses were used to identify the independent risk factors for postoperative AKI, and the predictive cutoff value of the receiver operating characteristic (ROC) curve was determined.
RESULTS: A total of 126 stage 3 CKD patients were included. The incidence of AKI after surgery was 31.0% (39/126). Univariate analysis showed that the proportion of robotic surgery was lower in the AKI group (12.8% vs. 33.3%, P=0.018), the duration of renal artery occlusion was longer (25 min vs. 18 min, P < 0.001), and the intraoperative blood loss was greater (20 mL vs. 50 mL, P=0.028). Multivariate Logistic regression analysis confirmed that the duration of renal artery occlusion (OR=1.105, 95%CI: 1.041-1.173, P=0.001) and intraoperative blood loss (OR=1.004, 95%CI: 1.000-1.007, P=0.046) were independent risk factors for postoperative AKI. ROC curve analysis showed that the area under the curve for predicting AKI by renal artery occlusion time was 0.737, and the optimal cutoff value was 18 min. The incidence of AKI was significantly higher in the patients with renal artery occlusion time ≥ 18 min than those with < 18 min (43.2% vs. 8.8%, P < 0.001).
CONCLUSION: The incidence of AKI after partial nephrectomy in stage 3 CKD patients is relatively high. The duration of renal artery occlusion and intra-operative blood loss are independent risk factors for postoperative AKI. Controlling the renal artery occlusion time within 18 min and minimizing intraoperative blood loss can help reduce the risk of AKI in this high-risk population after surgery.
METHODS: The clinical data of 126 stage 3 CKD patients who underwent partial nephrectomy at Peking University Third Hospital from January 2013 to December 2025 were retrospectively analyzed. Demographic characteristics, comorbidities, surgical-related indicators, and laboratory data of the patients were collected. AKI was defined according to the Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Univariate and multivariate regression analyses were used to identify the independent risk factors for postoperative AKI, and the predictive cutoff value of the receiver operating characteristic (ROC) curve was determined.
RESULTS: A total of 126 stage 3 CKD patients were included. The incidence of AKI after surgery was 31.0% (39/126). Univariate analysis showed that the proportion of robotic surgery was lower in the AKI group (12.8% vs. 33.3%, P=0.018), the duration of renal artery occlusion was longer (25 min vs. 18 min, P < 0.001), and the intraoperative blood loss was greater (20 mL vs. 50 mL, P=0.028). Multivariate Logistic regression analysis confirmed that the duration of renal artery occlusion (OR=1.105, 95%CI: 1.041-1.173, P=0.001) and intraoperative blood loss (OR=1.004, 95%CI: 1.000-1.007, P=0.046) were independent risk factors for postoperative AKI. ROC curve analysis showed that the area under the curve for predicting AKI by renal artery occlusion time was 0.737, and the optimal cutoff value was 18 min. The incidence of AKI was significantly higher in the patients with renal artery occlusion time ≥ 18 min than those with < 18 min (43.2% vs. 8.8%, P < 0.001).
CONCLUSION: The incidence of AKI after partial nephrectomy in stage 3 CKD patients is relatively high. The duration of renal artery occlusion and intra-operative blood loss are independent risk factors for postoperative AKI. Controlling the renal artery occlusion time within 18 min and minimizing intraoperative blood loss can help reduce the risk of AKI in this high-risk population after surgery.