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The Diagnosis of Occult Deep Vein Thrombosis of the Lower Extremities in Patients Presenting With Hypoxia

This study has been completed.
Information provided by (Responsible Party):
HaEmek Medical Center, Israel Identifier:
First received: November 23, 2010
Last updated: June 21, 2015
Last verified: June 2015
The purpose of this study is to prove that bedside Ultrasound Compression is a useful screening tool for the diagnosis of occult deep vein thrombosis in patients presenting to the emergency room with hypoxia.

Condition Intervention
Device: Ultrasound compression of femoral and popliteal veins

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: The Diagnosis of Occult Deep Vein Thrombosis of the Lower Extremities in Patients Presenting With Hypoxia

Resource links provided by NLM:

Further study details as provided by HaEmek Medical Center, Israel:

Estimated Enrollment: 100
Study Start Date: April 2010
Study Completion Date: January 2011
Primary Completion Date: January 2011 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
ultrasond compression of deep veins Device: Ultrasound compression of femoral and popliteal veins
Bedside ultrasound compression of femoral and popliteal veins.

Detailed Description:

It is known that 30% of deep vein thrombosis of the extremities is belived to be the precedend of pulmonary emboli; an often fatal disease. It is known that DVT (deep vein thrombosis is often occult.

It is also known that pulmonary embolism is often difficult to diagnose and is often missed especialy in patients with chronic illnesses such as COPD and CHF.

Venous compression ultrsound is an exam that can be preformed bedside. It is preformed by placing a vascular ultrasound transducer on the femoral vein and popliteal and checking its compressibility. If DVT is present in the femoral or popliteal veins the veins will be noncompressible. It has been shown that US compression for DVT can be preformed by physicians in the ER with accuracy and speed.

Presently US compression is not a tool used for detection of occult DVT in the ER. I wish to explore the usefullness of compression US of the lower extremities as a screening tool for DVT In the hypoxic patient.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
patients with saturation under 94% room air

Inclusion Criteria:

  • Patients presenting to the Emergency room
  • 18 years or older, saturation 94% and under on room air.

Exclusion Criteria:

  Contacts and Locations
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Please refer to this study by its identifier: NCT01279746

HaEmek Medical Center
Afula, Israel, 13425
HaEmek Medical Center
Afula, Israel
Sponsors and Collaborators
HaEmek Medical Center, Israel
  More Information

Responsible Party: HaEmek Medical Center, Israel Identifier: NCT01279746     History of Changes
Other Study ID Numbers: 0003-10-EMC
Study First Received: November 23, 2010
Last Updated: June 21, 2015

Keywords provided by HaEmek Medical Center, Israel:
DVT Ultrasound compression Hypoxia Pulmonary Emboli
Occult DVT in hypoxic patients

Additional relevant MeSH terms:
Venous Thrombosis
Embolism and Thrombosis
Vascular Diseases
Cardiovascular Diseases
Signs and Symptoms, Respiratory
Signs and Symptoms processed this record on May 22, 2017