Improving Emergency Department Testing for Deep Vein Thrombosis

NCT ID: NCT06195787

Last Updated: 2025-05-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

458 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-01-01

Study Completion Date

2025-01-01

Brief Summary

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This observational study will use a new way to test for deep vein thrombosis (DVT) of the leg. A DVT is a blood clot in the leg and is a medical problem that can cause swelling, pain, and redness. If the blood clot is not treated, it can cause more serious, long-term effects, and occasionally lead to death.

The main questions the study aims to answer are:

1. How safe is our new blood clot testing method?
2. How efficient is our new blood clot testing method?

The study will be run in the emergency department and urgent care centre in Kingston, Ontario. Patients who are tested for a DVT in the leg can be included in the study. Researchers follow the patient through chart review to make sure the new system is safe and efficient.

Detailed Description

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Conditions

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Deep Vein Thrombosis (DVT)

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

\- emergency physician decides to test for DVT of the lower limb.

Exclusion Criteria

* \<18 years of age;
* tested for DVT without using the ToDay algorithm at the index visit;
* D-dimer level is known before ToDay item assessment;
* a new indication for anticoagulation at the emergency department assessment (other than DVT) in a patient not previously prescribed an anticoagulant;
* a history of prior lower limb DVT, where there is no access to baseline ultrasound imaging;
* suspected of having a pulmonary embolism;
* has previously participated in this study;
* has previously opted out of all research at hospital site;
* left the emergency department or urgent care centre against medical advice;
* D-dimer was ordered prior to initial physician assessment;
* imaging for DVT or pulmonary embolism within the previous 30 days;
* transferred from another hospital organization.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Canadian Venous Thromboembolism Clinical Trials and Outcomes Research (CanVECTOR) Network

NETWORK

Sponsor Role collaborator

Dr. Kerstin de Wit

OTHER

Sponsor Role lead

Responsible Party

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Dr. Kerstin de Wit

Associate Professor Department of Emergency Medicine

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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Kingston Health Sciences Centre

Kingston, Ontario, Canada

Site Status

Countries

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Canada

Other Identifiers

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3717

Identifier Type: -

Identifier Source: org_study_id

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