床旁超声联合血浆D-二聚体在ICU患者DVT诊断中的价值评估

注册号:

Registration number:

ChiCTR2600123726 

最近更新日期:

Date of Last Refreshed on:

2026-04-29 10:59:30 

注册时间:

Date of Registration:

2026-04-29 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

床旁超声联合血浆D-二聚体在ICU患者DVT诊断中的价值评估

Public title:

The value assessment of bedside ultrasound combined with plasma D-dimer in the diagnosis of DVT in ICU patients

注册题目简写:

English Acronym:

研究课题的正式科学名称:

床旁超声联合血浆D-二聚体在ICU患者DVT诊断中的价值评估

Scientific title:

The value assessment of bedside ultrasound combined with plasma D-dimer in the diagnosis of DVT in ICU patients

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

张莎 

研究负责人:

张莎 

Applicant:

Zhang Sha 

Study leader:

Zhang Sha 

申请注册联系人电话:

Applicant telephone:

+86 28 3822 3102

研究负责人电话:

Study leader's
telephone:

+86 28 3822 3102

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

ahsgnahz@163.com

研究负责人电子邮件:

Study leader's E-mail:

ahsgnahz@163.com

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

眉山市东坡区东坡大道南四段288号

研究负责人通讯地址:

眉山市东坡区东坡大道南四段288号

Applicant address:

No.288, South Section 4, Dongpo Avenue, Dongpo District, Meishan City

Study leader's address:

No.288, South Section 4, Dongpo Avenue, Dongpo District, Meishan City

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

眉山市人民医院

Applicant's institution:

Meishan People's Hospital

研究负责人所在单位:

眉山市人民医院

Affiliation of the Leader:

Meishan City Peoples Hospital

是否获伦理委员会批准:

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

MY-IBR20260016

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

眉山市人民医院伦理委员会

Name of the ethic committee:

Ethics Committee of Meishan City People's Hospital

伦理委员会批准日期:

Date of approved by ethic committee:

2026-03-16 00:00:00

伦理委员会联系人:

王秋婷

Contact Name of the ethic committee:

Wang Qiuting

伦理委员会联系地址:

眉山市东坡区东坡大道南四段288号

Contact Address of the ethic committee:

No.288, South Section 4, Dongpo Avenue, Dongpo District, Meishan City

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 28 38235337

伦理委员会联系人邮箱:

Contact email of the ethic committee:

630191908@qq.com

研究实施负责(组长)单位:

眉山市人民医院

Primary sponsor:

Meishan City Peoples Hospital

研究实施负责(组长)单位地址:

眉山市东坡区东坡大道南四段288号

Primary sponsor's address:

No.288, South Section 4, Dongpo Avenue, Dongpo District, Meishan City

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

四川省

市(区县):

Country:

China

Province:

Sichuan

City:

单位(医院):

眉山市人民医院

具体地址:

眉山市东坡区东坡大道南四段288号

Institution
hospital:

Meishan City Peoples Hospital

Address:

No.288, South Section 4, Dongpo Avenue, Dongpo District, Meishan City

经费或物资来源:

自选课题(自筹)

Source(s) of funding:

self-financed project

研究疾病:

下肢深静脉血栓  

Target disease:

Deep Vein Thrombosis

研究疾病代码:

Target disease code:

研究类型:

诊断试验

Study type:

Diagnostic test

研究所处阶段:

其它 

Study phase:

N/A

研究设计:

诊断试验诊断准确性 

Study design:

Diagnostic test for accuracy 

研究目的:

本研究基于床旁彩色多普勒超声联合血浆D-二聚体(迈瑞CX-9000,含年龄校正截断值)检测数据, 1. 评估常规固定截断值、年龄校正截断值下D-二聚体单独检测、床旁超声单独检测及二者联合检测在ICU患者下肢深静脉血栓(DVT)中的整体诊断效能; 2. 明确床旁超声联合年龄校正D-二聚体对ICU患者孤立性远端血栓(胫后静脉、腓静脉等)的真实检出情况,探讨床旁彩色多普勒超声在远端小血栓筛查中的核心价值与应用策略; 3. 为优化我院ICU DVT的标准化筛查与诊断流程提供科学、可行的实践依据。  

Objectives of Study:

This study is based on data from bedside color Doppler ultrasound combined with plasma D-dimer (Mindray CX-9000, including age-adjusted cutoff values) testing. The objectives are: 1. To evaluate the overall diagnostic efficacy of D-dimer testing alone using conventional fixed cutoff values and age-adjusted cutoff values, bedside ultrasound alone, and their combination in diagnosing lower extremity deep vein thrombosis (DVT) in ICU patients; 2. To determine the actual detection rate of isolated distal thrombosis (such as posterior tibial and peroneal veins) in ICU patients using bedside ultrasound combined with age-adjusted D-dimer, and to explore the core value and application strategy of bedside color Doppler ultrasound in screening small distal thrombi; 3. To provide a scientific and feasible practical basis for optimizing the standardized screening and diagnostic process for DVT in the ICU of our hospital.

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

Inclusion criteria

排除标准:

1.既往有下肢DVT或肺栓塞病史(可能影响检测结果解读);
2.入ICU前已接受抗凝治疗(如低分子肝素、华法林);
3.合并严重肝肾功能衰竭(肝功能Child-Pugh C级或血肌酐>442 μmol/L,可能干扰D-二聚体代谢);
4.超声检查仅完成近端/远端单一部位评估,资料不完整者;
5.临床随访资料缺失,无法完成综合评估者;

Exclusion criteria:

1. History of lower extremity DVT or pulmonary embolism (which may affect the interpretation of test results); 2. Received anticoagulant therapy (e.g., low molecular weight heparin, warfarin) before ICU admission; 3. Concomitant severe liver or kidney failure (Child-Pugh Class C liver function or serum creatinine >442 μmol/L, which may interfere with D-dimer metabolism); 4. Incomplete ultrasound examination with assessment of only proximal or distal sites; 5. Missing clinical follow-up data, precluding comprehensive evaluation.

研究实施时间:

Study execute time:

From 2026-05-01 00:00:00 To 2028-05-01 00:00:00  

征募观察对象时间:

Recruiting time:

From 2026-05-01 00:00:00 To 2028-05-01 00:00:00

诊断试验:

Diagnostic Tests:

金标准或参考标准(即可准确诊断某疾病的单项方法或多项联合方法,在本研究中用于诊断是否有该病的临床参考标准):

本研究采用床旁彩色多普勒超声联合临床综合评估作为诊断参照标准(临床综合评估包括患者基础疾病、DVT高危因素、临床症状体征、实验室动态检测结果及后续临床随访结局)

Gold Standard or Reference Standard (The clinical reference standards required to establish the presence or absence of the target condition in the tested population in present study):

In this study, bedside color Doppler ultrasound combined with comprehensive clinical assessment (including underlying diseases, DVT risk factors, clinical signs and symptoms, dynamic laboratory test results, and subsequent clinical follow-up outcomes) was used as the diagnostic reference standard.

指标试验(即本研究的待评估诊断试验,无论为方法、生物标志物或设备,均请列出名称):

床旁超声机(迈瑞Mindray M9,彩色多普勒模式)以及血浆D-二聚体(迈瑞全自动凝血分析仪CX-9000检测)检测仪

Index test:

bedside ultrasound machine (Mindray M9, color Doppler mode) and plasma D-dimer analyzer (Mindray automated coagulation analyzer CX-9000)

目标人群(可以是某种疾病患者或正常人群,详细描述其疾病特征,注意应纳入符合分布特点的全序列病例,具有良好的代表性)

ICU收治的患者

例数:

Sample size:

575

Target condition (The target condition is a particular disease or disease stage that the index test will be intended to identify. Please specify the characteristics in detail; the population should has a complete spectrum and good representative):

Patients admitted to the ICU

容易混淆的疾病人群(即与目标疾病不易区分的一种或多种不同疾病,应避免采用正常人群对照的病例-对照设计):

例数:

Sample size:

0

Population with condition difficult to distinguish from the target condition, the normal population in a case-control study design should be avoid:

None

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

四川省 

市(区县):

 

Country:

China

Province:

Sichuan

City:

单位(医院):

眉山市人民医院 

单位级别:

三级甲等 

Institution
hospital:

Meishan City Peoples Hospital

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

灵敏度

指标类型:

主要指标

Outcome:

sensitivity

Type:

Primary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

特异度

指标类型:

主要指标

Outcome:

specificity

Type:

Primary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

阳性预测值

指标类型:

主要指标

Outcome:

positive predictive value

Type:

Primary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

阴性预测值

指标类型:

主要指标

Outcome:

Negative Predictive Value

Type:

Primary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

组织:

Sample Name:

NA

Tissue:

人体标本去向

其它  

说明

Fate of sample:

0thers  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age 0 years
最大 Max age years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

Randomization Procedure (please state who generates the random number sequence and by what method):

None

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

不公开/Private

盲法:

Blinding:

None

是否共享原始数据:

IPD sharing

否No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

Do not share

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

本研究根据“筛选病例标准”对2025年1月1日-10月31日我院ICU收治患者进行严格初筛,通过信息科提取符合标准的575例患者的相关资料

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

In this study, patients admitted to the ICU of our hospital from January 1 to October 31, 2025, were strictly preliminarily screened according to the 'case screening criteria', and the relevant data of 575 patients who met the criteria were extracted through the information department.

数据与安全监察委员会:

Data and Safety Monitoring Committee:

无/No

注册人:

Name of Registration:

 2026-04-29 10:59:13