Article(id=1322929660878790886, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322929547464815391, articleNumber=null, orderNo=null, doi=10.12102/j.issn.1009-6493.2026.14.018, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1750694400000, receivedDateStr=2025-06-24, revisedDate=1776614400000, revisedDateStr=2026-04-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1793340609997, onlineDateStr=2026-10-30, pubDate=1784908800000, pubDateStr=2026-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793340609997, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793340609997, creator=13701087609, updateTime=1793340609997, updator=13701087609, issue=Issue{id=1322929547464815391, tenantId=1146029695717560320, journalId=1220038315760373764, year='2026', volume='40', issue='14', pageStart='2385', pageEnd='2576', issueExtLink='null', onlineDate='null', pubDate='1784908800000', pubDateStr='2026-07-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793340582958, creator='13701087609', updateTime=1793343111003, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322940150912790807, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322929547464815391, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322940150912790808, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322929547464815391, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2516, endPage=2520, ext={EN=ArticleExt(id=1322929661109477607, articleId=1322929660878790886, tenantId=1146029695717560320, journalId=1220038315760373764, language=EN, title=Construction and validation of a risk prediction model for contrast-associated acute kidney injury in elderly patients with lower extremity arteriosclerosis obliterans after interventional surgery, columnId=1220689488284668633, journalTitle=Chinese Nursing Research, columnName=Comprehensive Study, runingTitle=null, highlight=null, articleAbstract=
Objective

To construct a risk prediction model for contrast-associated acute kidney injury(CA-AKI) in elderly patients with lower extremity arteriosclerosis obliterans(ASO) after interventional surgery and to perform internal validation.

Methods

A total of 685 elderly patients with ASO who underwent interventional treatment in a tertiary grade A hospital in Zhejiang province from January 2022 to December 2024 were selected as the study subjects.According to a 7∶3 ratio between the modeling group and the validation group,479 patients were included in the modeling group and 206 patients were included in the validation group.Logistic regression analysis was used to identify influencing factors for CA-AKI occurrence in elderly patients with ASO after interventional surgery.A risk prediction model was constructed. The clinical validity of the model was evaluated using the area under the receiver operating characteristic curve(AUC),Hosmer-Lemeshow test,calibration curve,and decision curve analysis(DCA).

Results

The incidence of CA-AKI was 5.43% in the modeling group and 4.85% in the validation group. Logistic regression analysis showed that acute lower limb ischemia,serum albumin and estimated glomerular filtration rate were independent influencing factors for CA-AKI occurrence(P<0.05).The AUC of the constructed prediction model was 0.84(95%CI 0.76-0.91),with a sensitivity of 68.0%,specificity of 87.0%,and a maximum Youden index of 0.550.The Hosmer-Lemeshow test results showed χ2=9.602(P=0.294).The calibration curve demonstrated good agreement between predicted risk and actual risk.The DCA curve indicated that the prediction model could achieve net benefit within the clinically relevant threshold probability range.The AUC for internal validation was 0.79(95%CI 0.68-0.90),with a sensitivity of 45.5% and specificity of 87.7%.

Conclusions

The risk prediction model for CA-AKI occurrence in elderly patients with ASO after interventional surgery has good predictive performance and could provide a reference for early clinical identification of high-risk populations for CA-AKI in elderly patients with ASO after interventional surgery.

, authors=Guoqin HE1, 2, Hanbo LIU2, authorsList=Guoqin HE, Hanbo LIU, authorCompany=null, correspAuthors=Hanbo LIU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322929664079044849, articleId=1322929660878790886, tenantId=1146029695717560320, journalId=1220038315760373764, language=CN, title=老年下肢动脉硬化闭塞症病人介入术后对比剂相关急性肾损伤发生风险预测模型的构建与验证, columnId=1220689488938980091, journalTitle=护理研究, columnName=综合研究, runingTitle=null, highlight=null, articleAbstract=
目的

构建老年下肢动脉硬化闭塞症(ASO)病人介入术后对比剂相关急性肾损伤(CA-AKI)发生风险预测模型,并进行内部验证。

方法

选取2022年1月—2024年12月浙江省某三级甲等医院接受介入治疗的685例老年ASO病人为研究对象,按照建模组与验证组7∶3的比例,建模组纳入病人479例,验证组纳入病人206例。采用Logistic回归分析筛选老年ASO病人介入术后CA-AKI发生的影响因素并构建风险预测模型。通过受试者工作特征(ROC)曲线下面积(AUC)、Hosmer-Lemeshow检验、校正曲线、决策曲线分析(DCA)评估模型的临床有效性。

结果

建模组病人的CA-AKI发生率为5.43%,验证组病人的CA-AKI发生率为4.85%。Logistic回归分析结果显示,是否急性下肢缺血、血清白蛋白和估算肾小球滤过率是CA-AKI发生的独立影响因素(P<0.05)。构建的预测模型AUC为0.84[95%CI(0.76,0.91)],灵敏度为68.0%,特异度为87.0%,最大约登指数为0.550。Hosmer-Lemeshow检验结果显示,χ2=9.602(P=0.294)。校准曲线显示,预测风险与实际风险具有良好的一致性。DCA曲线显示,预测模型在临床相关阈值概率范围内能够获得净收益。内部验证AUC为0.79[95%CI(0.68,0.90)],灵敏度为45.5%,特异度为87.7%。

结论

老年ASO病人介入术后CA-AKI发生风险预测模型具有较好的预测效能,可为临床早期识别介入术后发生CA-AKI的高危老年ASO病人提供参考。

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何国琴,护师,硕士研究生在读

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刘涵博,E-mail:
LIU Hanbo, E-mail:
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journalName=Kidney360, refType=null, unstructuredReference=Pattharanitima P,Bumrungsong N,Phoompho B,et al.Risk score for predicting acute kidney injury from contrast-enhanced computed tomography(pre-computed tomography acute kidney injury score):training and validation from retrospective cohort[J].Kidney360,2025,6(1):49-57., articleTitle=Risk score for predicting acute kidney injury from contrast-enhanced computed tomography(pre-computed tomography acute kidney injury score):training and validation from retrospective cohort, refAbstract=null), Reference(id=1322929672614453553, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929660878790886, doi=null, pmid=null, pmcid=null, year=2021, volume=27, issue=19, pageStart=2556, pageEnd=2562, url=null, language=null, rfNumber=18, rfOrder=17, authorNames=程培霞, 宋秀艳, 闫素华, journalName=中华现代护理杂志, refType=null, unstructuredReference=程培霞,宋秀艳,闫素华,等.冠状动脉介入患者围手术期水化预防对比剂急性肾损伤的最佳证据总结[J].中华现代护理杂志,2021,27(19):2556-2562., 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tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929660878790886, language=EN, label=Table 1, caption=

Univariate analysis of factors influencing CA-AKI occurrence in elderly patients with ASO after interventional surgery

, figureFileSmall=null, figureFileBig=null, tableContent=
项目分类未发生组(n=453)发生组(n=26)统计值P
性别[例(%)]男320(70.64)21(80.77)χ2=1.2300.267
女133(29.36)5(19.23)
年龄(岁)76.55±8.3977.54±8.16t=-0.5880.557
BMI(kg/m2)21.83±3.0221.63±2.63t=0.3290.743
吸烟史[例(%)]无279(61.59)16(61.54)χ2=0.0000.996
有174(38.41)10(38.46)
严重下肢缺血[例(%)]无324(71.52)18(69.23)χ2=0.0630.801
有129(28.48)8(30.77)
急性下肢缺血[例(%)]无439(96.91)18(69.23)χ2=36.905<0.001
有14(3.09)8(30.77)
高血压[例(%)]无122(26.93)1(3.85)χ2=6.8660.009
有331(73.07)25(96.15)
糖尿病[例(%)]无245(54.08)11(42.31)χ2=1.3700.242
有208(45.92)15(57.69)
冠心病[例(%)]无368(81.24)17(65.38)χ2=3.9170.048
有85(18.76)9(34.62)
心力衰竭[例(%)]无443(97.79)23(88.46)0.028①
有10(2.21)3(11.54)
血脂异常[例(%)]无65(14.35)4(15.38)χ2=0.0001.000
有388(85.65)22(84.62)
血清白蛋白(g/L)37.52±5.0334.18±5.14t=3.2880.001
血红蛋白(g/L)125.73±21.06114.12±19.13t=2.7480.006
eGFR[mL/(min·1.73 m2)]71.96±19.5149.99±16.85t=5.620<0.001
), ArticleFig(id=1322929669519057176, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929660878790886, language=CN, label=表1, caption=

老年ASO病人介入术后CA-AKI发生影响因素的单因素分析

, figureFileSmall=null, figureFileBig=null, tableContent=
项目分类未发生组(n=453)发生组(n=26)统计值P
性别[例(%)]男320(70.64)21(80.77)χ2=1.2300.267
女133(29.36)5(19.23)
年龄(岁)76.55±8.3977.54±8.16t=-0.5880.557
BMI(kg/m2)21.83±3.0221.63±2.63t=0.3290.743
吸烟史[例(%)]无279(61.59)16(61.54)χ2=0.0000.996
有174(38.41)10(38.46)
严重下肢缺血[例(%)]无324(71.52)18(69.23)χ2=0.0630.801
有129(28.48)8(30.77)
急性下肢缺血[例(%)]无439(96.91)18(69.23)χ2=36.905<0.001
有14(3.09)8(30.77)
高血压[例(%)]无122(26.93)1(3.85)χ2=6.8660.009
有331(73.07)25(96.15)
糖尿病[例(%)]无245(54.08)11(42.31)χ2=1.3700.242
有208(45.92)15(57.69)
冠心病[例(%)]无368(81.24)17(65.38)χ2=3.9170.048
有85(18.76)9(34.62)
心力衰竭[例(%)]无443(97.79)23(88.46)0.028①
有10(2.21)3(11.54)
血脂异常[例(%)]无65(14.35)4(15.38)χ2=0.0001.000
有388(85.65)22(84.62)
血清白蛋白(g/L)37.52±5.0334.18±5.14t=3.2880.001
血红蛋白(g/L)125.73±21.06114.12±19.13t=2.7480.006
eGFR[mL/(min·1.73 m2)]71.96±19.5149.99±16.85t=5.620<0.001
), ArticleFig(id=1322929669602943257, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929660878790886, language=EN, label=Table 2, caption=

Logistic stepwise backward regression analysis of factors influencing CA-AKI occurrence in elderly patients with ASO after interventional surgery

, figureFileSmall=null, figureFileBig=null, tableContent=
变量回归系数标准误Z值POR值95%CI
常量3.4491.5842.1780.029
急性下肢缺血1.7720.6512.6450.0085.598[1.562,20.060]
冠心病0.8310.4961.6770.0942.297[0.869,6.070]
血清白蛋白-0.1030.039-2.6230.0090.902[0.835,0.974]
eGFR-0.0500.012-4.348<0.0010.951[0.929,0.973]
), ArticleFig(id=1322929669686829338, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929660878790886, language=CN, label=表2, caption=

老年ASO病人介入术后CA-AKI发生影响因素的Logistic逐步向后回归分析

, figureFileSmall=null, figureFileBig=null, tableContent=
变量回归系数标准误Z值POR值95%CI
常量3.4491.5842.1780.029
急性下肢缺血1.7720.6512.6450.0085.598[1.562,20.060]
冠心病0.8310.4961.6770.0942.297[0.869,6.070]
血清白蛋白-0.1030.039-2.6230.0090.902[0.835,0.974]
eGFR-0.0500.012-4.348<0.0010.951[0.929,0.973]
), ArticleFig(id=1322929669766521115, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929660878790886, language=EN, label=Table 3, caption=

Logistic regression analysis of factors influencing CA-AKI occurrence in elderly patients with ASO after interventional surgery

, figureFileSmall=null, figureFileBig=null, tableContent=
变量回归系数标准误Z值POR值95%CI
常量3.6591.5722.3290.020
急性下肢缺血1.6930.6242.7140.0075.434[1.600,18.451]
血清白蛋白-0.1000.039-2.5730.0100.905[0.838,0.976]
eGFR-0.0520.012-4.548<0.0010.949[0.928,0.971]
), ArticleFig(id=1322929669829435676, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929660878790886, language=CN, label=表3, caption=

老年ASO病人介入术后CA-AKI发生影响因素的Logistic回归分析

, figureFileSmall=null, figureFileBig=null, tableContent=
变量回归系数标准误Z值POR值95%CI
常量3.6591.5722.3290.020
急性下肢缺血1.6930.6242.7140.0075.434[1.600,18.451]
血清白蛋白-0.1000.039-2.5730.0100.905[0.838,0.976]
eGFR-0.0520.012-4.548<0.0010.949[0.928,0.971]
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老年下肢动脉硬化闭塞症病人介入术后对比剂相关急性肾损伤发生风险预测模型的构建与验证
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何国琴 1, 2 , 刘涵博 2, *, *
护理研究 | 综合研究 2026,40(14): 2516-2520
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护理研究 |综合研究 2026 , 40 (14) : 2516 -2520
老年下肢动脉硬化闭塞症病人介入术后对比剂相关急性肾损伤发生风险预测模型的构建与验证
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何国琴,护师,硕士研究生在读

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何国琴1, 2, 刘涵博2, *, *
作者信息
  • 1浙江中医药大学护理学院,浙江 310053
  • 2浙江省人民医院
通讯作者:
刘涵博,E-mail:
LIU Hanbo, E-mail:
作者简介:

何国琴,护师,硕士研究生在读

Construction and validation of a risk prediction model for contrast-associated acute kidney injury in elderly patients with lower extremity arteriosclerosis obliterans after interventional surgery
Guoqin HE1, 2, Hanbo LIU2
Affiliations
  • 1School of Nursing, Zhejiang Chinese Medical University, Zhejiang 310053 China
  • 2Zhejiang Provincial People's Hospital
出版时间: 2026-07-25 doi: 10.12102/j.issn.1009-6493.2026.14.018
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目的

构建老年下肢动脉硬化闭塞症(ASO)病人介入术后对比剂相关急性肾损伤(CA-AKI)发生风险预测模型,并进行内部验证。

方法

选取2022年1月—2024年12月浙江省某三级甲等医院接受介入治疗的685例老年ASO病人为研究对象,按照建模组与验证组7∶3的比例,建模组纳入病人479例,验证组纳入病人206例。采用Logistic回归分析筛选老年ASO病人介入术后CA-AKI发生的影响因素并构建风险预测模型。通过受试者工作特征(ROC)曲线下面积(AUC)、Hosmer-Lemeshow检验、校正曲线、决策曲线分析(DCA)评估模型的临床有效性。

结果

建模组病人的CA-AKI发生率为5.43%,验证组病人的CA-AKI发生率为4.85%。Logistic回归分析结果显示,是否急性下肢缺血、血清白蛋白和估算肾小球滤过率是CA-AKI发生的独立影响因素(P<0.05)。构建的预测模型AUC为0.84[95%CI(0.76,0.91)],灵敏度为68.0%,特异度为87.0%,最大约登指数为0.550。Hosmer-Lemeshow检验结果显示,χ2=9.602(P=0.294)。校准曲线显示,预测风险与实际风险具有良好的一致性。DCA曲线显示,预测模型在临床相关阈值概率范围内能够获得净收益。内部验证AUC为0.79[95%CI(0.68,0.90)],灵敏度为45.5%,特异度为87.7%。

结论

老年ASO病人介入术后CA-AKI发生风险预测模型具有较好的预测效能,可为临床早期识别介入术后发生CA-AKI的高危老年ASO病人提供参考。

老年人  /  下肢动脉硬化闭塞症  /  对比剂相关急性肾损伤  /  影响因素  /  预测模型
Objective

To construct a risk prediction model for contrast-associated acute kidney injury(CA-AKI) in elderly patients with lower extremity arteriosclerosis obliterans(ASO) after interventional surgery and to perform internal validation.

Methods

A total of 685 elderly patients with ASO who underwent interventional treatment in a tertiary grade A hospital in Zhejiang province from January 2022 to December 2024 were selected as the study subjects.According to a 7∶3 ratio between the modeling group and the validation group,479 patients were included in the modeling group and 206 patients were included in the validation group.Logistic regression analysis was used to identify influencing factors for CA-AKI occurrence in elderly patients with ASO after interventional surgery.A risk prediction model was constructed. The clinical validity of the model was evaluated using the area under the receiver operating characteristic curve(AUC),Hosmer-Lemeshow test,calibration curve,and decision curve analysis(DCA).

Results

The incidence of CA-AKI was 5.43% in the modeling group and 4.85% in the validation group. Logistic regression analysis showed that acute lower limb ischemia,serum albumin and estimated glomerular filtration rate were independent influencing factors for CA-AKI occurrence(P<0.05).The AUC of the constructed prediction model was 0.84(95%CI 0.76-0.91),with a sensitivity of 68.0%,specificity of 87.0%,and a maximum Youden index of 0.550.The Hosmer-Lemeshow test results showed χ2=9.602(P=0.294).The calibration curve demonstrated good agreement between predicted risk and actual risk.The DCA curve indicated that the prediction model could achieve net benefit within the clinically relevant threshold probability range.The AUC for internal validation was 0.79(95%CI 0.68-0.90),with a sensitivity of 45.5% and specificity of 87.7%.

Conclusions

The risk prediction model for CA-AKI occurrence in elderly patients with ASO after interventional surgery has good predictive performance and could provide a reference for early clinical identification of high-risk populations for CA-AKI in elderly patients with ASO after interventional surgery.

the elderly  /  lower extremity arteriosclerosis obliterans  /  contrast-associated acute kidney injury  /  influencing factors  /  prediction model
何国琴, 刘涵博. 老年下肢动脉硬化闭塞症病人介入术后对比剂相关急性肾损伤发生风险预测模型的构建与验证. 护理研究, 2026 , 40 (14) : 2516 -2520 . DOI: 10.12102/j.issn.1009-6493.2026.14.018
Guoqin HE, Hanbo LIU. Construction and validation of a risk prediction model for contrast-associated acute kidney injury in elderly patients with lower extremity arteriosclerosis obliterans after interventional surgery[J]. Chinese Nursing Research, 2026 , 40 (14) : 2516 -2520 . DOI: 10.12102/j.issn.1009-6493.2026.14.018
下肢动脉硬化闭塞症(lower extremity arteriosclerosis obliterans,ASO)是中老年人常见的慢性进展性疾病,严重者可出现坏疽甚至需要截肢[1]。已有研究数据显示,ASO发病率随年龄增长显著上升,在老年人群中的发病率可达20%[2]。随着我国社会老龄化趋势加强,ASO发病率持续上升,ASO相关并发症和死亡风险增高[3]。血管介入术作为症状性ASO的首选治疗方法在临床广泛应用,对比剂相关急性肾损伤(contrast-associated acute kidney injury,CA-AKI)作为其术后并发症可导致透析需求增加、住院时间延长和死亡率增高等[4],在老年病人中不容忽视。目前,我国对老年ASO病人介入术后CA-AKI的关注不足,缺乏有效预测工具。因此,本研究拟构建老年ASO病人介入术后CA-AKI发生风险预测模型,以期为临床早期识别高危病人和采取预防措施提供参考。
选取2022年1月—2024年12月浙江省某三级甲等医院接受介入治疗的685例老年ASO病人为研究对象。纳入标准:1)符合ASO诊断标准[5];2)年龄≥60岁。排除标准:1)孤立肾;2)有肾移植病史;3)慢性肾脏病已行透析治疗;4)术后血清肌酐资料不全。根据自变量事件数原则(events per variable,EPV)[6]计算样本量,已有文献数据显示,ASO介入术后CA-AKI发生率为4%~10%[7],计算得建模组所需样本量为420~530例,按照建模组与验证组7∶3的比例,最终建模组纳入病人479例,验证组纳入病人206例。本研究已通过浙江省人民医院伦理委员会批准(编号:QT2024290)。
遵循个体预后或诊断的多变量预测模型透明报告(TRIPOD)[8],采用病人信息调查表收集病人临床资料。1)人口学资料:性别、年龄、体质指数(BMI)、吸烟史;2)合并症:严重下肢缺血、急性下肢缺血、高血压、糖尿病、冠心病、心力衰竭、血脂异常[9];3)实验室检查:病人介入术前血清白蛋白、血红蛋白、估算肾小球滤过率(estimated glomerular filtration rate,eGFR)以及介入术后72 h内血清肌酐。CA-AKI定义为在介入治疗后48~72 h,血清肌酐较基线值增加≥0.3 mg/dL(1 mg/dL=88.4 μmol/L)或50%[10]。
由2名课题组研究成员通过院内住院系统收集病人资料。
采用R 4.3.2软件对数据进行统计分析。定性资料以频数及百分比(%)表示,组间比较采用χ2检验或Fisher精确概率法;符合正态分布的定量资料用均数±标准差(x±s)表示,组间比较采用t检验。将单因素分析中有统计学意义的变量作为自变量进行Logistic回归分析,筛选老年ASO病人介入术后CA-AKI发生的独立影响因素,基于独立影响因素构建老年ASO病人介入术后CA-AKI发生风险预测模型,采用受试者工作特征(ROC)曲线下面积(AUC)评估模型区分度,采用Hosmer-Lemeshow拟合优度检验评估模型校准度,采用临床决策曲线分析(DCA)评估模型的临床实用性,采用Bootstrap法对模型进行内部验证。以双侧P<0.05为差异有统计学意义。
建模组479例病人中,男341例(71.19%),女138例(28.81%);年龄(76.60±8.37)岁;26例病人发生CA-AKI,发生率为5.43%。验证组206例病人中,男152例(73.79%),女54例(26.21%);年龄(76.53±8.46)岁;10例病人发生CA-AKI,发生率为4.85%。两组基线特征比较,差异均无统计学意义(均P>0.05)。
以是否发生CA-AKI作为因变量(未发生=0,发生=1),以单因素分析中有统计学意义的变量(P<0.05)作为自变量,自变量赋值:急性下肢缺血,无=0,有=1;高血压,无=0,有=1;冠心病,无=0,有=1;心力衰竭,无=0,有=1;血清白蛋白、血红蛋白、eGFR以原值输入。进行Logistic逐步向后回归分析,α入=0.05,α出=0.10。结果显示,是否急性下肢缺血、血清白蛋白、eGFR水平、冠心病进入回归模型(P<0.1)。见表2。为保证模型的统计可靠性,进一步纳入P<0.05的变量进行Logistic回归分析,结果显示,是否急性下肢缺血、血清白蛋白和eGFR水平是CA-AKI发生的独立影响因素(P<0.05),见表3。
根据Logistic回归分析结果构建预测模型,Logit(P)=3.659+1.693×急性下肢缺血-0.100×血清白蛋白-0.052×eGFR。老年ASO病人介入术后CA-AKI发生风险列线图见图1。
预测模型AUC为0.84[95%CI(0.76,0.91)],灵敏度为68.0%,特异度为87.0%,最大约登指数为0.550,见图2。Hosmer-Lemeshow检验结果显示,χ2=9.602(P=0.294),提示拟合度较好。校准曲线显示,预测风险与实际风险具有良好的一致性,见图3。DCA曲线显示,预测模型在临床相关阈值概率范围内能够获得净收益,见图4。采用Bootstrap法重复抽样1 000次对预测模型进行内部验证,AUC为0.79[95%CI(0.68,0.90)],灵敏度为45.5%,特异度为87.7%,提示预测模型对老年ASO病人介入术后CA-AKI的预测具有较好的校准度、区分度及临床实用性。
本研究结果显示,急性下肢缺血是老年ASO病人介入术后CA-AKI发生的独立危险因素,与Lee等[7]研究结果一致。急性下肢缺血是急性血栓形成或动脉栓塞导致的下肢动脉灌注迅速减少,典型表现为疼痛、苍白、无脉、麻痹和感觉异常的“5P”症状,严重威胁肢体完整性。急性下肢缺血可导致组织广泛坏死,释放大量炎症介质、氧自由基和内源性肾毒素,引发全身性炎症反应和氧化应激,即使采取恢复血流的治疗,病人仍可能出现缺血再灌注损伤,导致肾脏功能受损[11]。这些因素与对比剂的肾毒性作用产生协同效应,可增高CA-AKI发生风险。高血压和心力衰竭等常存在于老年人群,是常见的CA-AKI危险因素[12-13],但在本研究中未显示出统计学意义,这可能与研究人群异质性有关。
血清白蛋白具有抗氧化、减少炎症损伤、物质结合与转运以及维持血管内胶体渗透压等作用[14]。血清白蛋白水平降低与营养素摄入不足、合成减少以及丢失或消耗增加有关[15]。本研究结果显示,血清白蛋白水平较低的老年ASO病人介入术后CA-AKI发生风险较高,与Liu等[16]研究结果相似。低白蛋白血症常见于急性和慢性疾病,是疾病不良预后的独立预测因素,而老年人是低蛋白血症的高危人群,低白蛋白可能削弱其机体对抗对比剂诱导的氧化应激能力,增加对比剂的潜在毒性,并可能加剧造影剂引起的血液浓缩,进一步导致肾髓质微循环问题[13]。eGFR是评估肾功能的重要指标,低水平的eGFR可反映老年病人因年龄增长、动脉硬化及合并症等因素导致的肾小球滤过能力降低,表明肾脏清除对比剂的能力减弱。与Pattharanitima等[17]研究结果相似。
CA-AKI是医院获得性急性肾损伤的第三大原因,ASO病人介入术后发生CA-AKI可导致透析需求增加、住院时间延长和住院死亡率增高[4]。随着我国人口老龄化形势加剧,老年ASO病人介入术后CA-AKI不容忽视。然而现有的CA-AKI预测模型(如Mehran评分)服务于冠状动脉介入人群,针对ASO病人的特异性预测因子研究较少[18]。本研究通过Logistic回归分析筛选老年ASO病人介入术后CA-AKI发生风险的影响因素,并基于影响因素构建预测模型,模型AUC为0.84,Hosmer-Lemeshow检验、校准曲线、DCA曲线和Bootstrap内部验证表明,模型具有良好的预测效能和临床应用潜力。老年ASO病人介入术后CA-AKI发生风险预测模型的构建有利于临床医护人员早期识别老年ASO病人中的高风险个体并实施针对性的干预策略,为护理实践提供有力的决策支持工具。
老年ASO病人介入术后具有CA-AKI发生风险,本研究构建的老年ASO病人介入术后CA-AKI发生风险预测模型具有良好的预测效能和临床实用性,能够作为临床早期预测老年ASO病人介入术后CA-AKI发生风险的有效工具。但本研究为单中心研究,今后还需通过多中心、大样本研究进行外部验证。

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doi: 10.12102/j.issn.1009-6493.2026.14.018
  • 接收时间:2025-06-24
  • 首发时间:2026-10-30
  • 出版时间:2026-07-25
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  • 收稿日期:2025-06-24
  • 修回日期:2026-04-20
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    1浙江中医药大学护理学院,浙江 310053
    2浙江省人民医院

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
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光柄菇属 Pluteus 5 2.39
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