UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000035201
Receipt number R000040122
Scientific Title Catheter related thrombosis in the patients central venous catheter and pulmonary artery catheter are inserted
Date of disclosure of the study information 2018/12/10
Last modified on 2025/12/18 14:19:37

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Basic information

Public title

Catheter related thrombosis in the patients central venous catheter and pulmonary artery catheter are inserted

Acronym

CRT in the patients CVC and PAC are inserted

Scientific Title

Catheter related thrombosis in the patients central venous catheter and pulmonary artery catheter are inserted

Scientific Title:Acronym

CRT in the patients CVC and PAC are inserted

Region

Japan


Condition

Condition

Patients after cardiovascular surgery

Classification by specialty

Intensive care medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the incidence, onset time, risk factor of catheter-related thrombosis (CRT) in patients undergoing cardiovascular surgery with CVC and PAC inserted in the same internal jugular vein

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Formation of CRT

Key secondary outcomes

Time of formation, size, characteristics, risk factor etc. of CRT


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1.Patients in whom CVC and PAC were both inserted in the same internal jugular vein after introduction of general anesthesia in cardiovascular surgery at Tokyo Women's Medical University Hospital
2.Patients who got adequate explanation for participation in this study and written consent was obtained

Key exclusion criteria

1.Patients whose CVC and PAC are inserted through left and right internal jugular veins separately
2.Patients who already had CVC and/or PAC before induction
3.Patients who have already had a thrombus formation in the internal jugular vein
4.Patients whose research managers judged inappropriate as research subjects

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Takeshi
Middle name
Last name Nomura

Organization

Tokyo Women's Medical University Hospital

Division name

Department of Intensive Care Unit

Zip code

162-8666

Address

8-1, Kawada-cho, Shinjuku, Tokyo, Japan

TEL

03-3353-8111

Email

nomur@crocus.ocn.ne.jp


Public contact

Name of contact person

1st name Masafumi
Middle name
Last name Idei

Organization

Tokyo Women's Medical University Hospital

Division name

Department of Intensive Care Unit

Zip code

162-8666

Address

8-1, Kawada-cho, Shinjuku, Tokyo, Japan

TEL

0333538111

Homepage URL


Email

masafumi203@gmail.com


Sponsor or person

Institute

Tokyo Women's Medical University Hospital

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institutional Review Board of Tokyo Womens Medical University

Address

8-1, Kawada-cho, Shinjuku, Tokyo, Japan

Tel

0333538111

Email

ohta.megumi@twmu.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2018 Year 12 Month 10 Day


Related information

URL releasing protocol

https://link.springer.com/article/10.1007/s00380-021-01955-3

Publication of results

Published


Result

URL related to results and publications

https://link.springer.com/article/10.1007/s00380-021-01955-3

Number of participants that the trial has enrolled

50

Results

CRT was detected in 39 of 50 patients (78%), typically forming within 1 day after catheter insertion.
The median PAC placement duration was 3 days, with a median maximum CRT diameter of 12 mm.
Significant RIJV obstruction (>50%) occurred in 10% of patients, including complete occlusion in 2%.
Platelet count, PAC duration, and intraoperative blood loss were identified as risk factors for CRT.

Results date posted

2025 Year 12 Month 18 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

This study recruited patients aged 20 years or older who had both CVC and PAC inserted through the RIJV during cardiovascular surgery and were admitted to our ICU.

Participant flow

Adult patients who underwent cardiovascular surgery with both a central venous catheter (CVC) and a pulmonary artery catheter (PAC) inserted via the right internal jugular vein (RIJV) and were admitted to our ICU were enrolled.
All catheters were inserted under ultrasound guidance after induction of general anesthesia.
After ICU admission, patients underwent daily ultrasonographic evaluation of the RIJV to detect catheter-related thrombosis (CRT) until PAC removal.
When CRT was identified, catheters were removed as early as clinically feasible, and patients were followed with serial ultrasonography and anticoagulation therapy as indicated.

Adverse events

none

Outcome measures

Incidence, size, and risk factors of catheter-related thrombosis (CRT)

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Main results already published

Date of protocol fixation

2018 Year 11 Month 24 Day

Date of IRB

2018 Year 11 Month 24 Day

Anticipated trial start date

2018 Year 12 Month 10 Day

Last follow-up date

2021 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

We evaluate the incidence, onset time, risk factor of catheter-related thrombosis (CRT). In addition, we survey and analyze patients' background and clinical course.


Management information

Registered date

2018 Year 12 Month 10 Day

Last modified on

2025 Year 12 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000040122