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Status unknownNCT01504087Updated Jan 5, 2012

ICU Venous Thromboembolism Incidence Study in a Chinese Population

An observational study in Venous Thromboembolism, sponsored by National Taiwan University Hospital. Status unknown at 1 site in Taiwan. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2012-01-05.

Sponsored by National Taiwan University Hospital · Observational

The sponsor has not verified this record recently (last verified Jul 2011), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
200
Ages
18 Years and older
Sex
All
01

Study summary

Venous thromboembolism (VTE) is one of the major public health problems in Western country. More than 100,000 Americans die each year from VTE. VTE is also a common complication of critical illness,1-2 and probably related to poor outcome in this patient group. Although there are guidelines about VTE prophylaxis in acutely ill medical patients and patients in medical ICU3, they are overlooked in our daily practice frequently in our country. There are many reasons for our common practice, including inadequate knowledge for the ICU physicians, more patients with bleeding tendency in ICU and low prevalence of VTE in our (eastern) country. However, the true prevalence of VTE in ICU and if thromboprophylaxis still needed in certain high risk patients are not unknown. Besides, if there is a difference in the VTE rate between western and eastern patients, what is the underlying mechanism? The major objective of this application is to answer the first part of the problem, i.e. to delineate the scope of this problem.

The specific aims of this application are as follows:

  • prevalence of venous thromboembolism in ICU in Taiwan
  • specific risk in subgroups of ICU patients
  • prevalence and risk factors for silent pulmonary embolism
02

Conditions studied

  • Venous Thromboembolism

Keywords

  • patient in critical care
03

In context

Thromboembolism

818 studies on the registry are indexed under Thromboembolism; 98 are open to participants now.

This study's planned enrollment of 200 is below the median of 500 across 344 observational studies indexed under Thromboembolism.

Browse Thromboembolism studies →

Lead sponsor

National Taiwan University Hospital is the lead sponsor of 2,563 studies on the registry; 569 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All patients admitted to ICU with age over 18 y/o are eligible

Inclusion criteria

  • All patients admitted to medical ICU with age over 18 y/o are eligible

Exclusion criteria

Exclusion Criteria:

  • Patients who do not sign the informed consent will be excluded from this study
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
200 participants (estimated)
Biospecimen retention
Samples without dna

Groups and cohorts

  • patinet with deep venous thrombosis

    patient with deep venous thrombosis by ultrasonography as case; patient with no deep venous thrombosis by ultrasonography as control

  • patient without deep venous thrombosis
06

What researchers measure

Primary outcomes

  1. deep venous thrombosis by ultrasound

    Time frame: day 14 after ICU admission

Secondary outcomes

  1. any clinical thromboembolic event

    Time frame: day 14

07

Study locations

1 of 1 sites recruiting
  • National Taiwan University Hospital Yunlin branch
    Douliu, 640, Taiwan
    • Chi-sheng Hung, MD · Contact
    • Yung-Wei Chen, MD · Principal investigator
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 5, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01504087
Lead sponsor
National Taiwan University Hospital
Responsible party
Sponsor
First posted
Jan 5, 2012
Start date
May 2011
Last update
Jan 5, 2012

Study contacts

Chi-sheng Hung, MD
Contact
dtmed186@yahoo.com.tw
886-972-655354
Yung-Wei Chen, MD
principal investigator · National Taiwan University Hospital Yunlin Branch

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jul 2011. You cannot join it, but the record below documents what was studied.

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