临床荟萃 ›› 2026, Vol. 41 ›› Issue (6): 522-528.doi: 10.3969/j.issn.1004-583X.2026.06.007

• 论著 • 上一篇    下一篇

血小板/淋巴细胞比值对频发性腹膜透析相关性腹膜炎的预测价值

王涛(), 高玉伟, 王兴华, 胡秀红, 崔红蕊, 徐保振, 杨洪娟   

  1. 河北医科大学第一医院 肾内科, 河北 石家庄 050030
  • 收稿日期:2026-01-30 出版日期:2026-06-20 发布日期:2026-07-01
  • 通讯作者: 王涛,Email:yixuetaoshengyijiu@163.com
  • 基金资助:
    河北省中医药管理局科研项目——益肾化瘀法联合抗生素治疗腹膜透析相关腹膜炎的疗效观察及对腹膜透析患者肠道功能的调节作用(2024027)

Predictive value of the platelet-to-lymphocyte ratio for recurrent peritoneal dialysis-associated peritonitis

Wang Tao(), Gao Yuwei, Wang Xinghua, Hu Xiuhong, Cui Hongrui, Xu Baozhen, Yang Hongjuan   

  1. Department of Nephrology, the First Hospital of Hebei Medical University, Shijiazhuang 050030, China
  • Received:2026-01-30 Online:2026-06-20 Published:2026-07-01
  • Contact: Wang Tao,Email: yixuetaoshengyijiu@163.com

摘要:

目的 探讨血小板/淋巴细胞比值(platelet-to-lymphocyte ratio,PLR)对频发性腹膜透析相关性腹膜炎(recurrent peritoneal dialysis-associated peritonitis,RPDAP,1年内发生2次及以上PDAP)的预测价值。方法 本研究为单中心横断面回顾性研究,选取2017年1月-2022年12月于河北医科大学第一医院诊断为腹膜透析相关性腹膜炎(peritoneal dialysis-associated peritonitis,PDAP)的患者资料,根据随访过程中PDAP发生频率分为偶发性腹膜炎(idiopathic peritoneal dialysis-associated peritonitis,IPDAP,1年内仅发生1次PDAP)组和RPDAP组。收集患者的一般资料、实验室检查资料,应用logistic回归法分析PLR与RPDAP的关系,采用受试者工作特征曲线(receiver operating characteristic curve,ROC)分析PLR对RPDAP的预测价值。结果 共纳入PDAP患者83例,其中IPDAP组56例,RPDAP组27例。与IPDAP组相比,RPDAP组体重指数(BMI)偏低、透析龄更长(均P<0.05),引起PDAP的主要原因是操作不当、肠道感染;RPDAP组耐药菌占比更高(P<0.05),治疗有效率(40.71%)明显低于IPDAP组(82.14%),治疗无效需要移除导管(44.44%)明显高于IPDAP(14.28%),差异有统计学意义(均P<0.05),2组死亡率差异无统计学意义(P>0.05)。与IPDAP组相比,RPDAP组PLR水平更高,血红蛋白及白蛋白水平更低(均P<0.05);单因素logistic回归模型显示,PD患者BMI下降、透析龄较长、PLR升高、血红蛋白及白蛋白水平较低是RPDAP发生的影响因素(均P<0.05);基线PLR预测RPDAP的ROC曲线下面积为0.611(95%CI:0.560~0.662,P<0.05),PLR的截断值为165.1,特异度为79.8%,敏感度为68.2%。结论 PLR水平对RPDAP有一定的预测价值,可作为PD患者发生RPDAP的潜在预测标志物。

关键词: 腹膜透析, 腹膜透析相关性腹膜炎, 频发性, 血小板与淋巴细胞比值

Abstract:

Objective Platelet-to-lymphocyte ratio (PLR) is a biomarker for the prognosis of many diseases. Currently, there are no studies on patients with recurrent peritoneal dialysis-associated peritonitis (RPDAP, definedas ≥2 peritoneal dialysis-associated peritonitis [PDAP] episodes within 1 year). This study aims to explore the predictive value of the PLR for RPDAP. Methods This single-center, retrospective cross-sectional study reviewed patients diagnosed with PDAP at the First Hospital of Hebei Medical University from January 2017 to December 2022. Patients were categorized by PDAP frequency during follow-up into the idiopathic peritoneal dialysis-associated peritonitis group (IPDAP group; one PDAP episode within 1 year) and RPDAP group. Demographic and laboratory data were collected. Associations between PLR and RPDAP were assessed by univariate logistic regression, and the predictive performance of baseline PLR for RPDAP was evaluated using receiver operating characteristic (ROC) curve analysis. Results A total of 83 PDAP patients were included: 56 in the IPDAP group and 27 in the RPDAP group. Compared with the IPDAP group, the RPDAP group had lower body mass index (BMI) and longer dialysis vintage (both P<0.05). The main causes of PDAP were improper technique and enteric infections. The proportion of drug-resistant organisms was higher in the RPDAP group (P<0.05). Treatment effective rate in the RPDAP group was 40.71%, significantly lower than 82.14% in the IPDAP group (P<0.05). Treatment failure requiring catheter removal occurred in 44.44% of RPDAP patients, significantly higher than 14.28% in the IPDAP group (P<0.05). There was no significant difference in mortality between the two groups (P>0.05). Compared with the IPDAP group, the RPDAP group had higher PLR and lower hemoglobin and albumin levels (all P<0.05). Univariate logistic regression identified lower BMI, longer dialysis vintage, higher PLR, and lower hemoglobin and albumin as factors associated with RPDAP (all P<0.05). The ROC curve for baseline PLR predicting RPDAP yielded an area under the curve (AUC) of 0.611 (95%CI: 0.560-0.662, P<0.05). The optimal PLR cutoff was 165.1, with specificity 79.8% and sensitivity 68.2%. Conclusion PLR has modest predictive value for RPDAP and may serve as a potential predictive biomarker for RPDAP in peritoneal dialysis patients.

Key words: peritoneal dialysis, peritoneal dialysis-associated peritonitis, frequent, platelet-to-lymphocyte ratio

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