目的:探讨机器人辅助宫颈癌根治术后基线中性粒细胞与淋巴细胞比值(NLR)、血小板与淋巴细胞比值(PLR)与 尿路感染的关系,构建尿路感染风险预测模型并进行效能分析。方法:选取 2021 年 8 月—2024 年 8 月于本中心行机器人 辅助宫颈癌根治术患者 100 例,根据术后是否并发尿路感染分为发生组(n=29)与未发生组(n=71)。比较两组术后基线 NLR、PLR 水平差异,采用二元 Logistic 回归分析尿路感染的影响因素,建立 ROC 曲线分析 NLR、PLR 及两项联合对尿路感 染的预测效能。结果:发生组术后基线 NLR、PLR 水平均高于未发生组(P<0.05)。术后尿潴留、尿管留置时间长、术后基 线 NLR 越高、PLR 越高均为尿路感染的独立危险因素(P<0.05)。根据危险因素构建术后尿路感染风险预测列线图模型, ROC 曲线分析显示,术后 NLR、PLR、两项联合及列线图模型预测尿路感染的预测曲线 AUC 分别为 0.827、0.794、0.920、0.981, Delong 法检验显示,两项联合的 AUC 均高于单项的 AUC(P<0.05),列线图模型的 AUC 均高于 NLR、PLR 及两项联合的 AUC (P<0.05)。当取 cut-off 值时,两项联合的灵敏度、特异度分别为 0.828、0.944;列线图模型的灵敏度、特异度分别为 0.931、0.958。 经内部验证显示列线图模型稳定性良好且有正向净收益率。结论:机器人辅助宫颈癌根治术后基线 NLR、PLR 为患者术后尿路 感染的危险因素,临床中 NLR、PLR 监测结合术后尿潴留、尿管留置时间构建的列线图模型可较好地评估尿路感染风险。
Objective: To investigate the relationship between baseline neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and urinary tract infection (UTI) after robot-assisted radical cervical cancer surgery, and to develop a risk prediction model for UTI. Methods: A total of 100 patients who underwent robot-assisted radical cervical cancer surgery at our center from August 2021 to August 2024 were enrolled. They were divided into the UTI group (n=29) and the non-UTI group (n=71) based on whether postoperative UTI occurred or not. Differences in postoperative baseline NLR and PLR levels between the two groups were compared. Binary Logistic regression analysis was performed to identify risk factors for UTI. Receiver operating characteristic (ROC) curves were constructed to assess the predictive efficacy of NLR, PLR, and their combination for UTI. Results: Postoperative baseline NLR and PLR levels were significantly higher in the UTI group than those in the non-UTI group (P<0.05). Postoperative urinary retention, prolonged catheterization time, elevated baseline NLR, and elevated PLR were identified as independent risk factors for UTI (P<0.05). A nomogram model for UTI risk prediction was constructed based on these factors. ROC analysis showed that the AUC values for NLR, PLR, their combination, and the nomogram model in predicting UTI were 0.827, 0.794, 0.920, and 0.981, respectively. DeLong’s test revealed that the combined AUC was significantly higher than those of individual markers (P<0.05), and the nomogram model’s AUC was significantly higher than those of NLR, PLR, and their combination (P<0.05). At the optimal cut-off value, the combined markers achieved a sensitivity and specificity of 0.828 and 0.944, respectively, while the nomogram model achieved 0.931 and 0.958. Internal validation confirmed the nomogram model’s stability and positive net benefit. Conclusion: Elevated postoperative baseline NLR and PLR are risk factors for UTI after robot-assisted radical cervical cancer surgery. A nomogram model incorporating NLR, PLR, postoperative urinary retention, and catheterization time can effectively predict UTI risk in clinical practice.
基金项目:安徽省临床医学研究转化专项科研项目(202304295107020093);2022 年度安徽省妇幼保健协会“母婴营养与健康研究项目” (JKZD202206)
Foundation Item: Anhui Provincal Clinical Medical Research Transformation Project(202304295107020093); Maternal and Child Nutrition and Health Research Project of Anhui Maternal and Child Health Care Association in 2022(JKZD202206)
引用格式:方前进,桑琳,王润秋,等 . 机器人辅助宫颈癌根治术后基线 NLR、PLR 与尿路感染的关系及其风险预测研究 [J]. 机器人外科学 杂志(中英文),2025,6(3):464-470.
Citation: FANG Q J, SANG L, WANG R Q, et al. Relationship between baseline NLR, PLR and urinary tract infection after robot-assisted radical surgery for cervical cancer and its risk prediction [J]. Chinese Journal of Robotic Surgery, 2025, 6(3): 464-470.
通讯作者(Corresponding Author):方前进(FANG Qianjin),Email:paf_coga@126.com
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