Article(id=1322929502610928178, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322929431592972373, articleNumber=null, orderNo=null, doi=10.12102/j.issn.1009-6493.2026.15.004, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1756310400000, receivedDateStr=2025-08-28, revisedDate=1775923200000, revisedDateStr=2026-04-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1793340572264, onlineDateStr=2026-10-30, pubDate=1786291200000, pubDateStr=2026-08-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793340572264, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793340572264, creator=13701087609, updateTime=1793340572264, updator=13701087609, issue=Issue{id=1322929431592972373, tenantId=1146029695717560320, journalId=1220038315760373764, year='2026', volume='40', issue='15', pageStart='2577', pageEnd='2768', issueExtLink='null', onlineDate='null', pubDate='1786291200000', pubDateStr='2026-08-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793340555332, creator='13701087609', updateTime=1793343107287, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322940135335145743, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322929431592972373, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322940135335145744, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322929431592972373, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2607, endPage=2615, ext={EN=ArticleExt(id=1322929502829031987, articleId=1322929502610928178, tenantId=1146029695717560320, journalId=1220038315760373764, language=EN, title=Construction of a Nomogram model for intraoperative acquired pressure injury in elderly patients with brain tumors based on limb muscle strength, columnId=1220689484526572183, journalTitle=Chinese Nursing Research, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
Objective

To construct a Nomogram prediction model for intraoperative acquired pressure injury in elderly patients with brain tumors based on limb muscle strength.

Methods

A total of 536 elderly patients with brain tumors who underwent surgical treatment in our hospital from January 2022 to June 2025 were enrolled and randomly divided into a training set(n=366) and a validation set(n=170) at a 7∶3 ratio.Based on the occurrence of intraoperative acquired pressure injury,patients in the training set were further classified into an injury group and a non-injury group.Clinical data and limb muscle strength data were collected.Univariate analysis was performed.The least absolute shrinkage and selection operator(LASSO) regression algorithm was used to identify characteristic variables associated with intraoperative acquired pressure injury.Multivariate Logistic regression analysis was conducted to determine independent predictors of intraoperative acquired pressure injury.A Nomogram prediction model was then constructed based on these independent predictors.The calibration of the model was evaluated by using the Hosmer-Lemeshow test and calibration curves.Clinical utility was assessed through decision curve analysis.Predictive performance was evaluated by plotting receiver operating characteristic curves and calculating the area under the curve.External validation was performed by using the validation set.

Results

Logistic regression analysis results showed that diabetes,operative time,intraoperative temperature variation,albumin level,C-reactive protein level,and limb muscle strength grade were independent predictive factors of intraoperative acquired pressure injury in elderly patients with brain tumors.The calibration curves for both the training and validation sets showed good fit with the ideal curve.The Hosmer-Lemeshow test indicated good consistency between predicted and observed probabilities,demonstrating satisfactory model accuracy(training set:χ²=6.697,P=0.570;validation set:χ²=5.464,P=0.707).Decision curve analysis revealed that within a threshold probability range of 0 to 1,the Nomogram model provided a higher net clinical benefit compared to any single predictor in both the training and validation sets,indicating strong clinical utility.The Area under receiver operating characteristic curves for the training set was 0.883(95%CI 0.845-0.920) and for the validation set was 0.879(95%CI 0.820-0.937),indicating excellent predictive.

Conclusions

The Nomogram prediction model for intraoperative acquired pressure injury in elderly patients with brain tumors,incorporating diabetes,operative time,intraoperative temperature variation,albumin level,C-reactive protein level,and limb muscle strength grade,demonstrates good calibration,clinical utility,and predictive performance.The Nomogram prediction model of intraoperative acquired pressure injury in elderly patients with brain tumors based on diabetes,operation time,intraoperative temperature variation,albumin level,C-reactive protein,and limb muscle strength has good calibration,clinical practicality,and prediction efficiency.This model holds significant clinical value for identifying high-risk patients and guiding preventive nursing interventions.

, authors=Caihong HUANG1, Fang LIU1, Zhen LI2, Jinming LIU2, authorsList=Caihong HUANG, Fang LIU, Zhen LI, Jinming LIU, authorCompany=null, correspAuthors=Fang 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=1322929506985587272, articleId=1322929502610928178, tenantId=1146029695717560320, journalId=1220038315760373764, language=CN, title=基于肢体肌力构建老年脑肿瘤病人术中获得性压力性损伤的列线图模型, columnId=1220689484681761433, journalTitle=护理研究, columnName=科研论著, runingTitle=null, highlight=null, articleAbstract=
目的

基于肢体肌力构建老年脑肿瘤病人术中获得性压力性损伤的列线图预测模型。

方法

选取2022年1月—2025年6月于我院接受手术治疗的536例老年脑肿瘤病人为研究对象,按照7∶3的比例将其随机分为训练集(n=366)和验证集(n=170)。根据术中是否出现压力性损伤将训练集分为损伤组与非损伤组。收集训练集病人的临床资料及肢体肌力并进行单因素分析;通过LASSO回归算法筛选影响老年脑肿瘤病人术中获得性压力性损伤的特征变量;通过多因素Logistic回归分析筛选老年脑肿瘤病人术中获得性压力性损伤的独立预测因素;构建列线图预测模型,通过Hosmer-Lemeshow检验、校准曲线评价列线图预测模型的校准度;通过决策曲线评价列线图预测模型的临床实用性;绘制受试者工作特征(ROC)曲线评价列线图预测模型的预测效能。使用验证集数据进行验证。

结果

Logistic回归分析结果显示,糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白、肢体肌力是老年脑肿瘤病人术中获得性压力性损伤的独立预测因素。训练集与验证集的校准曲线与理想曲线拟合度均较高,Hosmer-Lemeshow检验结果显示预测概率与实测概率具有较好的一致性,表明模型准确性较好(训练集:χ²=6.697,P=0.570;验证集:χ²=5.464,P=0.707)。训练集与验证集决策曲线中,当预测风险阈值取值为0~1时,其列线图预测模型的临床标准净获益均高于任一独立预测因素,表明该模型的临床实用性较高。训练集与验证集的ROC曲线下面积分别为0.883[95%CI(0.845,0.920)]和0.879[95%CI(0.820,0.937)],表明该模型预测效能较好。

结论

基于糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白、肢体肌力构建的老年脑肿瘤病人术中获得性压力性损伤的列线图预测模型有良好的校准度、临床实用性和预测效能,对于识别高危病人和指导预防性护理干预具有重要的临床价值。

, authors=黄彩虹1, 刘芳1, *, *, 李珍2, 刘金明2, authorsList=黄彩虹, 刘芳, 李珍, 刘金明, authorCompany=null, correspAuthors=刘芳, authorNote=

黄彩虹,主管护师,硕士研究生

, correspAuthorsNote=
刘芳,E-mail:
LIU Fang, E-mail:
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journalId=1220038315760373764, articleId=1322929502610928178, doi=null, pmid=null, pmcid=null, year=2025, volume=26, issue=12, pageStart=86, pageEnd=89, url=null, language=null, rfNumber=31, rfOrder=30, authorNames=罗华, 侯雪琴, 郇慧慧, journalName=中国病案, refType=null, unstructuredReference=罗华,侯雪琴,郇慧慧.手术中医疗器械相关压力性损伤的影响因素分析[J].中国病案,2025,26(12):86-89., articleTitle=手术中医疗器械相关压力性损伤的影响因素分析, refAbstract=null), Reference(id=1322929526178722473, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, doi=null, pmid=null, pmcid=null, year=2024, volume=21, issue=5, pageStart=720, pageEnd=725, url=null, language=null, rfNumber=32, rfOrder=31, authorNames=孙媛, 谭世宇, 刘亮, journalName=护理实践与研究, refType=null, unstructuredReference=孙媛,谭世宇,刘亮,等.手术室医疗器械相关压力性损伤现状及其影响因素的调查分析[J].护理实践与研究,2024,21(5):720-725., articleTitle=手术室医疗器械相关压力性损伤现状及其影响因素的调查分析, refAbstract=null), Reference(id=1322929526245831338, tenantId=1146029695717560320, journalId=1220038315760373764, 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articleId=1322929502610928178, doi=null, pmid=null, pmcid=null, year=2018, volume=33, issue=22, pageStart=33, pageEnd=37, url=null, language=null, rfNumber=35, rfOrder=34, authorNames=赵丹, 王志稳, journalName=护理学杂志, refType=null, unstructuredReference=赵丹,王志稳.骨科患者术中压力性损伤发生情况及危险因素研究[J].护理学杂志,2018,33(22):33-37;56., articleTitle=骨科患者术中压力性损伤发生情况及危险因素研究, refAbstract=null), Reference(id=1322929526484906669, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, doi=null, pmid=null, pmcid=null, year=2024, volume=38, issue=9, pageStart=1544, pageEnd=1549, url=null, language=null, rfNumber=36, rfOrder=35, authorNames=王雅萍, 王晨, 李莉, journalName=护理研究, refType=null, unstructuredReference=王雅萍,王晨,李莉,等.基于肢体肌力及TcPO2构建ICU病人压力性损伤预测模型[J].护理研究,2024,38(9):1544-1549., articleTitle=基于肢体肌力及TcPO2构建ICU病人压力性损伤预测模型, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1322929507207885385, tenantId=1146029695717560320, journalId=1220038315760373764, 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articleId=1322929502610928178, language=EN, label=Figure 9, caption=Decision curve of the risk prediction model for intraoperative acquired pressure injury among elderly brain tumor patients in the validation set, figureFileSmall=ZGDVQfndG0O4i6P6LBAScg==, figureFileBig=nqvBN2Q41JNlXqvi/uZ9nQ==, tableContent=null), ArticleFig(id=1322929513600004739, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, language=CN, label=图9, caption=验证集老年脑肿瘤病人发生术中获得性压力性损伤风险预测模型的决策曲线, figureFileSmall=ZGDVQfndG0O4i6P6LBAScg==, figureFileBig=nqvBN2Q41JNlXqvi/uZ9nQ==, tableContent=null), ArticleFig(id=1322929513658724996, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, language=EN, label=Table 1, caption=

Univariate analysis results of factors influencing intraoperative acquired pressure injury in elderly patients with brain tumors

, figureFileSmall=null, figureFileBig=null, tableContent=
项目分类损伤组(n=114)非损伤组(n=252)统计值P
性别[例(%)]男62(54.39)133(52.78)χ2=0.0820.775
女52(45.61)119(47.22)
吸烟[例(%)]是57(50.00)122(48.41)χ2=0.0790.778
否57(50.00)130(51.59)
饮酒[例(%)]是55(48.25)116(46.03)χ2=0.1550.694
否59(51.75)136(53.97)
高血压[例(%)]有50(43.86)116(46.03)χ2=0.1490.699
无64(56.14)136(53.97)
糖尿病[例(%)]有60(52.63)95(37.70)χ2=7.1690.007
无54(47.37)157(62.30)
冠心病[例(%)]有56(49.12)111(44.05)χ2=0.8150.367
无58(50.88)141(55.95)
手术体位[例(%)]侧卧位36(31.58)88(34.92)
俯卧位28(24.56)53(21.03)χ2=0.7010.704
平卧位50(43.86)111(44.05)
术中低血压[例(%)]有28(24.56)46(18.25)χ2=1.9360.164
无86(75.44)206(81.75)
局部皮肤潮湿[例(%)]是26(22.81)40(15.87)χ2=2.5530.110
否88(77.19)212(84.13)
意识障碍[例(%)]有20(17.54)28(11.11)χ2=2.8500.091
无94(82.46)224(88.89)
活动能力[例(%)]独立活动60(52.63)150(59.52)χ2=1.5940.451
部分依赖48(42.11)92(36.51)
完全依赖6(5.26)10(3.97)
年龄(岁)69.32±3.9068.89±4.08t=0.9600.338
体质指数(kg/m2)21.36±0.8921.52±0.97t=-1.4810.139
术前禁食时间(h)9.34±1.129.42±1.12t=-0.6520.515
手术时间(min)388.17±100.20306.97±88.64t=7.787<0.001
术中体温变化(℃)1.40±0.411.10±0.37t=7.078<0.001
术中失血量(mL)502.38±106.38490.26±110.29t=0.9840.326
术中输血量(mL)396.24±88.76380.23±92.40t=1.5540.121
血清白蛋白(g/L)37.27±3.7440.26±4.05t=-6.682<0.001
C-反应蛋白(mg/L)36.36±8.2830.12±7.15t=7.346<0.001
肢体肌力(级)2.70±0.763.30±0.90t=-6.534<0.001
), ArticleFig(id=1322929513876828805, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, language=CN, label=表1, caption=

老年脑肿瘤病人发生术中获得性压力性损伤影响因素的单因素分析结果

, figureFileSmall=null, figureFileBig=null, tableContent=
项目分类损伤组(n=114)非损伤组(n=252)统计值P
性别[例(%)]男62(54.39)133(52.78)χ2=0.0820.775
女52(45.61)119(47.22)
吸烟[例(%)]是57(50.00)122(48.41)χ2=0.0790.778
否57(50.00)130(51.59)
饮酒[例(%)]是55(48.25)116(46.03)χ2=0.1550.694
否59(51.75)136(53.97)
高血压[例(%)]有50(43.86)116(46.03)χ2=0.1490.699
无64(56.14)136(53.97)
糖尿病[例(%)]有60(52.63)95(37.70)χ2=7.1690.007
无54(47.37)157(62.30)
冠心病[例(%)]有56(49.12)111(44.05)χ2=0.8150.367
无58(50.88)141(55.95)
手术体位[例(%)]侧卧位36(31.58)88(34.92)
俯卧位28(24.56)53(21.03)χ2=0.7010.704
平卧位50(43.86)111(44.05)
术中低血压[例(%)]有28(24.56)46(18.25)χ2=1.9360.164
无86(75.44)206(81.75)
局部皮肤潮湿[例(%)]是26(22.81)40(15.87)χ2=2.5530.110
否88(77.19)212(84.13)
意识障碍[例(%)]有20(17.54)28(11.11)χ2=2.8500.091
无94(82.46)224(88.89)
活动能力[例(%)]独立活动60(52.63)150(59.52)χ2=1.5940.451
部分依赖48(42.11)92(36.51)
完全依赖6(5.26)10(3.97)
年龄(岁)69.32±3.9068.89±4.08t=0.9600.338
体质指数(kg/m2)21.36±0.8921.52±0.97t=-1.4810.139
术前禁食时间(h)9.34±1.129.42±1.12t=-0.6520.515
手术时间(min)388.17±100.20306.97±88.64t=7.787<0.001
术中体温变化(℃)1.40±0.411.10±0.37t=7.078<0.001
术中失血量(mL)502.38±106.38490.26±110.29t=0.9840.326
术中输血量(mL)396.24±88.76380.23±92.40t=1.5540.121
血清白蛋白(g/L)37.27±3.7440.26±4.05t=-6.682<0.001
C-反应蛋白(mg/L)36.36±8.2830.12±7.15t=7.346<0.001
肢体肌力(级)2.70±0.763.30±0.90t=-6.534<0.001
), ArticleFig(id=1322929513943937670, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, language=EN, label=Table 2, caption=

Variable assignment status

, figureFileSmall=null, figureFileBig=null, tableContent=
变量赋值方式
术中获得性压力性损伤未发生=0,发生=1
手术时间原值输入
术中体温变化原值输入
血清白蛋白原值输入
C-反应蛋白原值输入
肢体肌力原值输入
糖尿病无=0,有=1
), ArticleFig(id=1322929515630047879, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, language=CN, label=表2, caption=

变量赋值情况

, figureFileSmall=null, figureFileBig=null, tableContent=
变量赋值方式
术中获得性压力性损伤未发生=0,发生=1
手术时间原值输入
术中体温变化原值输入
血清白蛋白原值输入
C-反应蛋白原值输入
肢体肌力原值输入
糖尿病无=0,有=1
), ArticleFig(id=1322929516020118152, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, language=EN, label=Table 3, caption=

Logistic regression analysis results of factors influencing intraoperative acquired pressure injury in elderly patients with brain tumors

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变量回归系数标准误Wald χ2值POR值95%CI
糖尿病0.9560.20222.4080.0002.600[1.751,3.862]
手术时间1.1790.28017.744<0.0013.250[1.878,5.624]
术中体温变化1.3660.5296.6770.0103.918[1.391,11.040]
血清白蛋白-0.1600.03817.322<0.0010.852[0.791,0.919]
C-反应蛋白1.1100.4147.1730.0073.034[1.347,6.834]
肢体肌力-0.6610.17514.202<0.0010.516[0.366,0.728]
常量-53.9488.28142.438<0.001
), ArticleFig(id=1322929516405994121, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322929502610928178, language=CN, label=表3, caption=

老年脑肿瘤病人发生术中获得性压力性损伤影响因素的Logistic回归分析结果

, figureFileSmall=null, figureFileBig=null, tableContent=
变量回归系数标准误Wald χ2值POR值95%CI
糖尿病0.9560.20222.4080.0002.600[1.751,3.862]
手术时间1.1790.28017.744<0.0013.250[1.878,5.624]
术中体温变化1.3660.5296.6770.0103.918[1.391,11.040]
血清白蛋白-0.1600.03817.322<0.0010.852[0.791,0.919]
C-反应蛋白1.1100.4147.1730.0073.034[1.347,6.834]
肢体肌力-0.6610.17514.202<0.0010.516[0.366,0.728]
常量-53.9488.28142.438<0.001
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基于肢体肌力构建老年脑肿瘤病人术中获得性压力性损伤的列线图模型
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黄彩虹 1 , 刘芳 1, *, * , 李珍 2 , 刘金明 2
护理研究 | 科研论著 2026,40(15): 2607-2615
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护理研究 |科研论著 2026 , 40 (15) : 2607 -2615
基于肢体肌力构建老年脑肿瘤病人术中获得性压力性损伤的列线图模型
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黄彩虹1, 刘芳1, *, * , 李珍2, 刘金明2
作者信息
  • 1赣南医科大学第一附属医院,江西 341000
  • 2赣南医科大学
通讯作者:
刘芳,E-mail:
LIU Fang, E-mail:
作者简介:

黄彩虹,主管护师,硕士研究生

Construction of a Nomogram model for intraoperative acquired pressure injury in elderly patients with brain tumors based on limb muscle strength
Caihong HUANG1, Fang LIU1 , Zhen LI2, Jinming LIU2
Affiliations
  • 1The First Affiliated Hospital of Gannan Medical University,Jiangxi 341000 China
  • 2Gannan Medical University
出版时间: 2026-08-10 doi: 10.12102/j.issn.1009-6493.2026.15.004
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目的

基于肢体肌力构建老年脑肿瘤病人术中获得性压力性损伤的列线图预测模型。

方法

选取2022年1月—2025年6月于我院接受手术治疗的536例老年脑肿瘤病人为研究对象,按照7∶3的比例将其随机分为训练集(n=366)和验证集(n=170)。根据术中是否出现压力性损伤将训练集分为损伤组与非损伤组。收集训练集病人的临床资料及肢体肌力并进行单因素分析;通过LASSO回归算法筛选影响老年脑肿瘤病人术中获得性压力性损伤的特征变量;通过多因素Logistic回归分析筛选老年脑肿瘤病人术中获得性压力性损伤的独立预测因素;构建列线图预测模型,通过Hosmer-Lemeshow检验、校准曲线评价列线图预测模型的校准度;通过决策曲线评价列线图预测模型的临床实用性;绘制受试者工作特征(ROC)曲线评价列线图预测模型的预测效能。使用验证集数据进行验证。

结果

Logistic回归分析结果显示,糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白、肢体肌力是老年脑肿瘤病人术中获得性压力性损伤的独立预测因素。训练集与验证集的校准曲线与理想曲线拟合度均较高,Hosmer-Lemeshow检验结果显示预测概率与实测概率具有较好的一致性,表明模型准确性较好(训练集:χ²=6.697,P=0.570;验证集:χ²=5.464,P=0.707)。训练集与验证集决策曲线中,当预测风险阈值取值为0~1时,其列线图预测模型的临床标准净获益均高于任一独立预测因素,表明该模型的临床实用性较高。训练集与验证集的ROC曲线下面积分别为0.883[95%CI(0.845,0.920)]和0.879[95%CI(0.820,0.937)],表明该模型预测效能较好。

结论

基于糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白、肢体肌力构建的老年脑肿瘤病人术中获得性压力性损伤的列线图预测模型有良好的校准度、临床实用性和预测效能,对于识别高危病人和指导预防性护理干预具有重要的临床价值。

肢体肌力  /  老年人  /  脑肿瘤  /  术中获得性压力性损伤  /  列线图  /  预测模型  /  调查研究
Objective

To construct a Nomogram prediction model for intraoperative acquired pressure injury in elderly patients with brain tumors based on limb muscle strength.

Methods

A total of 536 elderly patients with brain tumors who underwent surgical treatment in our hospital from January 2022 to June 2025 were enrolled and randomly divided into a training set(n=366) and a validation set(n=170) at a 7∶3 ratio.Based on the occurrence of intraoperative acquired pressure injury,patients in the training set were further classified into an injury group and a non-injury group.Clinical data and limb muscle strength data were collected.Univariate analysis was performed.The least absolute shrinkage and selection operator(LASSO) regression algorithm was used to identify characteristic variables associated with intraoperative acquired pressure injury.Multivariate Logistic regression analysis was conducted to determine independent predictors of intraoperative acquired pressure injury.A Nomogram prediction model was then constructed based on these independent predictors.The calibration of the model was evaluated by using the Hosmer-Lemeshow test and calibration curves.Clinical utility was assessed through decision curve analysis.Predictive performance was evaluated by plotting receiver operating characteristic curves and calculating the area under the curve.External validation was performed by using the validation set.

Results

Logistic regression analysis results showed that diabetes,operative time,intraoperative temperature variation,albumin level,C-reactive protein level,and limb muscle strength grade were independent predictive factors of intraoperative acquired pressure injury in elderly patients with brain tumors.The calibration curves for both the training and validation sets showed good fit with the ideal curve.The Hosmer-Lemeshow test indicated good consistency between predicted and observed probabilities,demonstrating satisfactory model accuracy(training set:χ²=6.697,P=0.570;validation set:χ²=5.464,P=0.707).Decision curve analysis revealed that within a threshold probability range of 0 to 1,the Nomogram model provided a higher net clinical benefit compared to any single predictor in both the training and validation sets,indicating strong clinical utility.The Area under receiver operating characteristic curves for the training set was 0.883(95%CI 0.845-0.920) and for the validation set was 0.879(95%CI 0.820-0.937),indicating excellent predictive.

Conclusions

The Nomogram prediction model for intraoperative acquired pressure injury in elderly patients with brain tumors,incorporating diabetes,operative time,intraoperative temperature variation,albumin level,C-reactive protein level,and limb muscle strength grade,demonstrates good calibration,clinical utility,and predictive performance.The Nomogram prediction model of intraoperative acquired pressure injury in elderly patients with brain tumors based on diabetes,operation time,intraoperative temperature variation,albumin level,C-reactive protein,and limb muscle strength has good calibration,clinical practicality,and prediction efficiency.This model holds significant clinical value for identifying high-risk patients and guiding preventive nursing interventions.

limb muscle strength  /  the aged  /  brain tumors  /  intraoperative acquired pressure injury  /  Nomogram  /  predictive model  /  investigation
黄彩虹, 刘芳, 李珍, 刘金明. 基于肢体肌力构建老年脑肿瘤病人术中获得性压力性损伤的列线图模型. 护理研究, 2026 , 40 (15) : 2607 -2615 . DOI: 10.12102/j.issn.1009-6493.2026.15.004
Caihong HUANG, Fang LIU, Zhen LI, Jinming LIU. Construction of a Nomogram model for intraoperative acquired pressure injury in elderly patients with brain tumors based on limb muscle strength[J]. Chinese Nursing Research, 2026 , 40 (15) : 2607 -2615 . DOI: 10.12102/j.issn.1009-6493.2026.15.004
术中获得性压力性损伤是指在外科手术过程中,由于病人长时间维持特定体位或受到局部压力,导致的皮肤及软组织缺血、缺氧,进而引发组织损伤的现象[1-3]。对于老年脑肿瘤病人来说,术中获得性压力性损伤的发生尤为常见。老年病人由于生理功能衰退,皮肤弹性和血液循环能力较差,加上脑肿瘤手术常涉及长时间的麻醉和固定体位,局部受压过久,导致血液供应不足,从而增加了压力性损伤的风险[4-6]。术中获得性压力性损伤的发生不仅会给病人带来身体上的痛苦,还可能延长恢复时间,增加感染的风险,甚至导致术后并发症的发生[7]。对老年病人而言,这种损伤尤为严重,因为他们的自我修复能力较差,术后愈合速度缓慢,容易引发更复杂的并发症,如感染、创面持续性溃疡等[8-9]。尤其是在脑肿瘤病人术后的康复过程中,压力性损伤可能影响病人的神经康复,延缓术后康复进程,进而降低其生存质量。目前,临床上虽然已有一定的压力性损伤预防措施[10-11],但仍然匮乏针对老年脑肿瘤病人术中获得性压力性损伤的预测工具。缺乏个性化、精准的风险评估工具使得医生无法在术前、术中及时识别和防范这一潜在风险,致使部分病人在术后面临严重的并发症。因此,基于病人生理特点和术中获得性压力性损伤发生风险建立预测模型显得尤为重要。列线图作为一种基于统计学和临床经验的风险预测工具,能够根据病人的具体情况,量化其发生术中获得性压力性损伤的风险,并为临床决策提供数据支持[12-13]。本研究旨在通过构建一个基于肢体肌力的列线图预测模型,结合老年脑肿瘤病人的多项临床指标,全面评估术中获得性压力性损伤的发生风险,从而为临床提供一种更加精准、科学的预测工具,进一步优化病人的术中管理和预防措施。
选取2022年1月—2025年6月于我院接受手术治疗的536例老年脑肿瘤病人为研究对象,按照7∶3的比例随机分为训练集(n=366)和验证集(n=170)。纳入标准:1)年龄≥60岁;2)均符合颅脑肿瘤切除手术适应证;3)收治时病人本身皮肤完整,无压力性损伤;4)术后住院时间≥1周;5)临床资料完整。排除标准:1)皮肤病病人,如系统性红斑狼疮、银屑病等;2)烫伤、烧伤病人;3)入院前脊髓损伤、重度脑挫裂伤、重症肌无力等神经和肌肉疾病病人;4)患有其他恶性肿瘤或严重内科疾病的病人;5)妊娠期、哺乳期女性;6)肢体残疾、截瘫、偏瘫病人;7)精神疾病病人。本研究已经赣南医学院第一附属医院(第一临床医学院)科学研究伦理审查(编号:LLSC-2022110201)。
参照《术中获得性压力性损伤预防与护理专家共识》[14]中的相关标准诊断病人是否出现术中获得性压力性损伤。
包括病人年龄、体质指数、术前禁食时间、手术时间、术中体温变化、术中失血量、术中输血量、血清白蛋白、C-反应蛋白、性别、吸烟、饮酒、高血压、糖尿病、冠心病、手术体位、术中低血压、局部皮肤潮湿、意识障碍、活动能力。
由2名经过统一培训的康复医师或研究护士评估。评估时,病人依次进行上肢(肩外展、肘屈伸)和下肢(髋屈伸、膝屈伸、踝背屈)的关键肌群主动运动,随后评估者施加反向阻力,要求病人对抗。根据肌肉收缩表现和对抗阻力的能力,将肌力划分为0(无收缩)~5级(正常肌力)[15]。为确保评估的一致性,所有评估人员在研究开始前均接受了标准操作程序培训,并对评估标准进行一致性检验(Kappa>0.8)。取病人四肢肌力等级的平均值,四舍五入取整数,作为该病人的最终肌力等级。
数据的收集与录入工作采取双人协作模式进行,1名工作人员负责实地调查并整理数据资料,另1名工作人员则专门负责对所收集的资料进行核对,以确保数据的准确无误。
采用SPSS 26.0、MedCalc、R语言4.2.1包、rms包处理数据。定量资料通过K-S检验评价正态性,符合正态分布的定量资料以均数±标准差(x±s)表示,组间比较采用独立样本t检验。定性资料用例数、百分比(%)表示,组间比较采用χ2检验。通过R 4.2.1采用LASSO回归算法筛选影响老年脑肿瘤病人术中获得性压力性损伤的特征变量;通过多因素Logistic回归分析筛选老年脑肿瘤病人术中获得性压力性损伤的独立预测因素;采用R语言rms包构建列线图预测模型,通过Hosmer-Lemeshow检验、校准曲线评价列线图预测模型的校准度;通过决策曲线评价列线图预测模型的临床实用性;绘制受试者工作特征(receiver operating characteristic curve,ROC)曲线评价列线图预测模型的预测效能。检验水准α=0.05。
根据术中是否出现压力性损伤将其分为损伤组与非损伤组,其中损伤组114例,非损伤组252例。单因素分析结果显示,与非损伤组比较,损伤组病人糖尿病占比较高,手术时间较长,术中体温变化较大,血清白蛋白水平较低,C-反应蛋白水平较高,肢体肌力等级较低,差异均有统计学意义(P<0.05),详见表1。
为处理变量间的多重共线性和高维度问题,采用LASSO回归初筛变量。通过十折交叉验证确定最优惩罚系数λ,交叉验证曲线显示,最小二乘偏差对应的Log(λ)值约为-3.7。在此最优λ值处,系数路径图显示共有6个变量的回归系数未被压缩至零,分别为糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白和肢体肌力。详见图1、图2。
为控制混杂因素,明确老年脑肿瘤病人发生术中获得性压力性损伤的独立预测因素,采用LASSO回归进行筛选的6个变量(糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白及肢体肌力)作为自变量进行Logistic回归分析。变量赋值情况见表2。结果显示,糖尿病、更长的手术时间、更大的术中体温波动、更高的C-反应蛋白水平是老年脑肿瘤病人发生术中获得性压力性损伤的独立危险因素(P<0.05);而更高的白蛋白水平和更好的肢体肌力是其独立保护因素(P<0.05),详见表3。
以术中获得性压力性损伤为目标事件,将糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白、肢体肌力作为独立预测因素,通过R语言rms包构建列线图预测模型,详见图3。
绘制训练集与验证集的ROC曲线,结果显示,训练集与验证集的ROC曲线下面积分别为0.883[95%CI(0.845,0.920)]和0.879[95%CI(0.820,0.937)],表明该模型预测效能较好,详见图4、图5。
绘制训练集与验证集的校准曲线,结果表明,校准曲线与理想曲线拟合度均较高,见图6、图7。分别对训练集与验证集进行Hosmer-Lemeshow检验,结果表明预测值与实测值具有较好的一致性,表明该模型校准度较高(训练集:χ2=6.697;P=0.570;验证集:χ2=5.464,P=0.707)。
绘制训练集与验证集的决策曲线,结果表明,当预测风险阈值取值为0~1时,训练集与验证集列线图预测模型的临床标准净收益均高于任一独立预测因素,表明该模型的临床实用性较高,见图8、图9。
术中获得性压力性损伤是老年脑肿瘤病人手术期间常见的并发症,指局部皮肤及皮下组织在长时间压力或剪切力作用下发生的缺血性损伤,不仅会增加术后感染风险,延长住院时间,还可能加重病人神经功能损伤后的康复难度[16-17]。老年脑肿瘤病人因年龄大、机体代偿能力差,常合并基础疾病,且手术时间长、术中体位固定,成为术中获得性压力性损伤的高危人群[18-19]。目前,临床多依赖经验性护理措施(如定时翻身、使用减压垫等)预防损伤,但精准的风险预测工具较少,且现有研究多聚焦一般手术病人的压力性损伤危险因素[20-21],针对老年脑肿瘤病人的特异性预测模型较少,对于肢体肌力这一反映神经功能状态及体位耐受能力的关键指标关注也较少。基于此,本研究通过构建基于肢体肌力的列线图模型,旨在揭示老年脑肿瘤病人术中获得性压力性损伤的独立预测因素,并评估该模型的预测效能,以期为临床提供科学、有效的预防方案。
本研究结果显示,糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白、肢体肌力是老年脑肿瘤病人术中获得性压力性损伤的独立预测因素,这证实了系统性生理储备与应激状态在压力性损伤发生中的核心作用。
本研究结果显示,低血清白蛋白水平与高C-反应蛋白是老年脑肿瘤病人发生术中获得性压力性损伤的独立危险因素,二者共同勾勒出低营养储备-高炎症负荷的脆弱生理背景[22-23]。低血清白蛋白意味着组织修复的“原材料”匮乏,而高的C-反应蛋白则标志着持续的全身性炎症反应,此种状态会加剧组织在压力下的缺血再灌注损伤[24-25]。这与糖尿病病人微循环障碍与组织修复能力下降的病理基础相互交织,共同放大了损伤风险[26-28]。
本研究结果显示,手术时间、术中体温变化是老年脑肿瘤病人术中获得性压力性损伤的独立预测因素,手术时间与术中体温波动作为重要的外源性应激源,其影响不容忽视[29-32]。长时间手术直接延长了组织的压迫时间,而体温波动(尤其是低体温)会通过引起外周血管收缩,降低组织代谢率,进一步恶化局部微循环[33-35]。这些发现系统性地揭示了压力性损伤是病人内在生理脆弱性与围术期外源性应激共同作用的结果,而非单纯的局部机械压迫问题。
本研究结果显示,肢体肌力是老年脑肿瘤病人术中获得性压力性损伤的独立影响因素。肌力水平直接反映了病人的运动神经功能与骨骼肌质量,是机体活动耐受性和体位变换能力的生理基础[36]。对于脑肿瘤病人,肿瘤本身或手术操作可能导致中枢或外周神经功能障碍,引起肢体肌力下降。肌力减弱的病人,在术中被迫体位下自主进行微动的能力丧失或减弱,使得骨隆突部位持续承受压力,局部组织灌注不足,最终导致损伤。因此,肢体肌力不仅是一个简单的体格检查指标,更是综合反映病人神经功能状态、组织灌注潜力和体位耐受性的关键生物学标志。这一发现提示,术前康复干预与功能评估应纳入围术期护理体系。
本研究证实了老年脑肿瘤病人发生术中获得性压力性损伤风险预测模型具有一定可靠性与实用性。校准曲线分析发现,模型的预测概率与实测概率之间具有较好的拟合度,且Hosmer-Lemeshow检验结果(训练集:χ2=6.697,P=0.570;验证集:χ2=5.464,P=0.707)显示,预测概率与实测概率具有较高的一致性,表明该风险预测模型在样本中的准确性较高。可见模型通过整合糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白、肢体肌力变量,能够有效预测术中获得性压力性损伤的发生,且与独立预测因素相比,该风险预测模型在临床标准净收益方面表现更优。决策曲线分析发现,当预测风险阈值为0~1时,该风险预测模型的净收益高于任一独立预测因素,进一步验证了该风险预测模型在临床应用中的实用性和价值。训练集和验证集的ROC曲线下面积分别为0.883[95%CI(0.845,0.920)]和0.879[95%CI(0.820,0.937)],表明该模型在预测术中获得性压力性损伤方面具有较高的效能。在临床转化方面,本研究提供的列线图模型将上述多维度预测因素整合为一个易于使用的量化工具,相较于依赖单一指标或临床经验,该模型能帮助医护人员在术前快速、精准地识别高危病人,从而实现医疗资源的优化配置。对于模型预测的高风险病人,可提前采取强化措施,如使用更高级别的压力再分布垫、制定更频繁的体位调整方案、加强术中核心体温监测与保温以及进行目标明确的营养支持和炎症管理。
首先,研究样本仅来自单一地区的医院,可能存在一定的地域限制,结果的广泛适用性需要进一步验证;其次,虽然本研究构建了基于肢体肌力的列线图模型,但在实际临床中,病人的个体差异较大,如何根据不同病人的实际情况进行个性化干预,还需更多的临床研究支持。
综上所述,本研究证实糖尿病、手术时间、术中体温变化、血清白蛋白、C-反应蛋白及肢体肌力是老年脑肿瘤病人术中获得性压力性损伤的独立预测因素,构建的列线图模型具有良好效能,该模型操作简便,可帮助临床医护人员术前快速识别高危病人,通过针对性干预降低损伤发生率,改善病人预后。

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doi: 10.12102/j.issn.1009-6493.2026.15.004
  • 接收时间:2025-08-28
  • 首发时间:2026-10-30
  • 出版时间:2026-08-10
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  • 收稿日期:2025-08-28
  • 修回日期:2026-04-12
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    1赣南医科大学第一附属医院,江西 341000
    2赣南医科大学

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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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