Measurement of D-Dimer Levels in Patients With Confirmed Deep Vein Thrombosis
Studieoversigt
Status
Status
Betingelser
Betingelser
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
Oklahoma
-
Oklahoma City, Oklahoma, Forenede Stater, 73104
- The University of Oklahoma Health Sciences Center
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- The study population tested will be recruited from ambulatory outpatients (presenting at the emergency unit or outpatient clinic) suspected of having DVT.
- Patient is < 80 years old.
- Patient presenting at least one of these symptoms indicative of proximal DVT: leg pain, tenderness (discomfort through palpation), leg swelling and /or edema,
- Patient has confirmed proximal DVT by imaging
- Low or moderate Wells score
- Patient provides written informed consent to participate in the sample collection
Exclusion Criteria:
Patient presenting with a condition that may be associated with increased D-dimer levels, even in the absence of VTE, such as:
- Fibrinolytic therapy within the previous seven (7) days,
- Bone fracture or surgery (with general anesthesia longer than thirty (30) minutes) within the previous one (1) month,
- Deep hematoma diagnosed by imaging techniques within the previous one (1) month,
- Disseminated malignancies and active cancer (active cancer defined as: cancer for which therapeutic or palliative treatment is either ongoing at the time of enrolment or has stopped less than six (6) months before enrolment),
- Sepsis, severe infections, pneumonia within the previous 1 month,
- Known liver cirrhosis,
- Pregnancy or post-partum within the previous 1 month,
- Atherosclerotic vascular disease thrombosis within the previous 1month (e.g. myocardial infarction, stroke, coronary syndrome, peripheral artery disease stage III or IV),
- Sickle cell disease,
- Patients presenting with a suspect thrombotic event related to catheter implantation
- Ongoing therapeutic anticoagulants (curative and preventive treatment) starting twenty four (24) hours or more before the blood drawing for D-dimer testing
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
|---|
|
Deep Venous Thrombosis (DVT)
DVT diagnosed by imaging technique with a low or moderate Wells score
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
STA Liatest DDi results in DVT positive cases
Tidsramme: At the initial visit (up to 24 hours)
|
Prospective, ambulatory outpatients (presenting to the emergency unit or outpatient clinic) suspected of having DVT, with a proximal positive imaging results, will be screened for eligibility using the inclusion and exclusion criteria (see Section above).
Then the eligible patients will be evaluated using the Wells score and only patient with Low or moderate Pre-Test Probability (PTP) will receive full explanation concerning nature, objectives and risks associated to the participation in this study.
Written informed consent will be obtained from each participating subject prior blood drawing, processing, plasma aliquoting and freezing at -80°C for D-Dimer testing (STA Liatest DDi).
The whole process, starting from the moment the patient is diagnosed with DVT, should not exceed 24 hours.
|
At the initial visit (up to 24 hours)
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
STA Liatest DDi Versus STA Liatest DDi Plus
Tidsramme: At the initial visit (up to 24 hours)
|
Prospective, ambulatory outpatients (presenting to the emergency unit or outpatient clinic) suspected of having DVT, with a proximal positive imaging results, will be screened for eligibility using the inclusion and exclusion criteria (see Section above).
Then the eligible patients will be evaluated using the Wells score and only patient with Low or moderate PTP will receive full explanation concerning nature, objectives and risks associated to the participation in this study.
Written informed consent will be obtained from each participating subject prior blood drawing, processing, plasma aliquoting and freezing at -80°C for D-Dimer testing (STA Liatest DDi Plus).
The whole process, starting from the moment the patient is diagnosed with DVT, should not exceed 24 hours
|
At the initial visit (up to 24 hours)
|
Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Plasma bank for DDi measurements
Tidsramme: At the initial visit (up to 24 hours)
|
Prospective, ambulatory outpatients (presenting to the emergency unit or outpatient clinic) suspected of having DVT, with a proximal positive imaging results, will be screened for eligibility using the inclusion and exclusion criteria (see Section above).
Then the eligible patients will be evaluated using the Wells score and only patient with Low or moderate PTP will receive full explanation concerning nature, objectives and risks associated to the participation in this study.
Written informed consent will be obtained from each participating subject prior blood drawing, processing, plasma aliquoting and freezing at -80°C for D-Dimer testing (STA Liatest DDi or STA Liatest DDi Plus to investigate unmatched results).
The whole process, starting from the moment the patient is diagnosed with DVT, should not exceed 24 hours
|
At the initial visit (up to 24 hours)
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Suman Wasan Rathbun, MD, University of Oklahoma Health Sciences
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- D-Dimer DVT
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