目的 调查住院老年患者因经外周静脉置入中心静脉导管（PICC）而引发的血栓情况，并分析其影响因素，为老年患者置入PICC产生的相关性血栓（PICC-CRT）和症状性血栓的评估与干预提供借鉴。方法 在2023年1月—2023年12月期间，选取广州市第一人民医院接受PICC置管的317例住院老年患者。采用包括患者一般情况调查表、运动功能评定、肌力检测、 Barthel指数评定、Padua评分等多种工具进行综合评估。采用多因素 Logistic 回归构建 PICC-CRT 及症状性血栓的预测模型，并应用逐步回归法优化变量筛选过程。模型性能通过 ROC 曲线进行评估。结果 去除临床资料不完整的患者40例，最终纳入277例患者的完整资料，其中123例患者出现了PICC-CRT，发生率为44.40%（123/277）。血栓分级中，I级78例，Ⅱ级37例，Ⅲ级8例。无症状血栓83例，占67.48%，发生率29.96%（83/277）；症状性血栓40例，占32.52 %，发生率14.44%（40/277）。单因素分析联合多因素Logistic回归显示，卒中史、凝血酶原时间（PT）、导管留置时间是住院老年患者PICC-CRT的关键因素（P＜0.05），预测模型ROC曲线下面积为0.719；置管史、恶性肿瘤史、导管留置时间、置管后并发症数量是住院老年患者PICC症状性血栓的独立影响因素（P＜0.05），预测模型ROC曲线下面积为0.812。结论 文章总结了PICC-CRT和症状性血栓独特的影响因素，基于关键因素构建了预测模型预测其发生，为护理人员预防PICC-CRT和症状性血栓的发生提供了参考。

   Objective To explore the incidence of thrombosis associated with peripherally inserted central catheter（PICC）placement in hospitalized elderly patients and to analyze its influencing factors，in order to provide a reference for the assessment and prevention of PICC-catheter related thrombosis（PICC-CRT）and symptomatic thrombosis in this population．Methods A total of 317 elderly inpatients who underwent PICC placement at a tertiary hospital in Guangzhou between January and December 2023 were enrolled．Comprehensive assessments were conducted using general patient information forms，motor function evaluation，muscle strength testing，Barthel Index，and Padua score．Multivariate Logistic regression analysis was used to construct predictive models for PICC-CRT and symptomatic thrombosis，with variable selection optimized via stepwise regression．Model performance was evaluated using receiver operating characteristic（ROC）curve analysis．Results After excluding 40 patients with incomplete clinical data，277 cases were included in the final analysis．Among them，123 patients developed PICC-CRT，with an incidence rate of 44.40%（123/277）．Thrombosis was graded as Grade I in 78 cases，Grade II in 37 cases，and Grade III in 8 cases．Asymptomatic thrombosis occurred in 83 cases（29.96%），accounting for 67.48% of PICC-CRT；symptomatic thrombosis occurred in 40 cases（14.44%），accounting for 32.52%．Univariate and multivariate Logistic regression analyses identified history of stroke，prothrombin time（PT），and catheter dwell time as key risk factors for PICC-CRT（P＜0.05），with the area under the curve（AUC）of 0.719．History of catheterization，malignancy，catheter dwell time，and number of post-catheterization complications were independent predictors of symptomatic thrombosis（P＜0.05），with an AUC of 0.812．Conclusions This study identified distinct risk factors for PICC-CRT and symptomatic thrombosis in elderly inpatients．Predictive models based on key variables may provide useful references for clinical staff in preventing the occurrence of PICC-related and symptomatic thrombosis．

目的 对比双腔耐高压PICC和股静脉置管在IV级心力衰竭患者中的应用效果。方法 选取我院 2016年1月—12月收治的端坐位IV级心力衰竭患者61例,按照便利抽样的方法将其随机分成研究组31例和对照组30例。研究组患者行耐高压PICC置管,对照组患者行双腔中心股静脉置管,观察2组患者的一次性置管成功率、导管头端位置、并发症发生率、留置导管天数和患者满意度等相关临床指标。结果 研究组患者的一次插管成功率为 93.55%(29例),高于对照组的83.33%(25例)(P<0.05);研究组患者的并发症发生率低于对照组(P<0.05)。结论 对IV级心力衰竭患者在端坐位下予以耐高压PICC 插管进行治疗,能提高一次置管成功率,降低并发症发生率,提高患者满意度,可作为患者抢救时的首选静脉通道。

Objective To compare the effect of dual chamber high pressure PICC (peripherally inserted central catheter) and femoral vein CVC(central venous catheter)catheterization in patients with IV class heart failure. Methods From January to December 2016, 61 patients with congestive heart failure in the sitting position were selected from our hospital. According to the convenient sampling method, they were randomly divided into the study group (31 cases) and the control group(n=30). The study group were treated with high pressure PICC tube, the control group underwent femoral vein catheterization. Two groups of patients with the success rate of catheterization, catheter tip location, complications, indwelling catheter days and related clinical indicators of patient satisfaction were observed. Results The successful rate of intubation in the study group was 93.55% (29 cases), higher than that of the control group (25 cases)(P<0.05), and the incidence of complications in the study group was lower than that of the control group(P<0.05)(83.33%). Conclusion Treatment for patients with heart failure IV be in sitting position under high pressure PICC intubation, may improve the success rate of catheterization, reduce the incidence of complications, improve patient satisfaction, and be the first choice when the rescue of patients with venous channel.