Study Results
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View full resultsBasic Information
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COMPLETED
305 participants
OBSERVATIONAL
2019-03-04
2019-10-18
Brief Summary
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* How accurate the test is in detecting poor circulation
* How it's accuracy compares to other commonly used tests, and
* Whether test results are linked to the chance of ulcer healing or amputation. Across 2 hospitals, 305 diabetic patients will be scanned using the focused ultrasound test as well as other commonly used tests to detect poor circulation. Their results will be compared to a full version of the ultrasound test to identify the most accurate.
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Detailed Description
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A focused ultrasound test at the ankle, using a sensor and gel on the skin, can detect poor circulation. It is safe, painless and I have previously proven that it can be learned and performed quickly. It may help avoid amputations by detecting poor circulation so that it can be treated quickly.
Conditions
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Study Design
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OTHER
PROSPECTIVE
Interventions
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Transcutaneous pressure of oxygen (TcPO2)
Measurements will be taken from the dorsum of the foot using an automated machine equipped with Clark electrodes.
Toe Brachial Pressure Index (TBPI)
TBPI will be measured using the photoplethysmography (PPG) method, employing an infrared sensor placed on the hallux and index finger.
Podiatry Ankle Duplex scan (PAD-scan)
Podiatry ankle duplex scan (PAD-scan) involves using an ultrasound machine to visualise the anterior and posterior tibial arteries at the ankle.
Duplex Assist
Continuous Doppler device which gives visual display of arterial spectral waveform at the ankle.
Ankle Brachial Pressure Index (ABPI)
A sphygmomanometer-cuff placed at the ankle and a handheld continuous wave Doppler device will be used to measure the systolic pressure of the DPA and PTA.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
ALL
No
Sponsors
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Imperial College Healthcare NHS Trust
OTHER
Responsible Party
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Principal Investigators
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Jaffer Usman
Role: PRINCIPAL_INVESTIGATOR
Imperial College London
Locations
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West Middlesex University Hospital
London, , United Kingdom
Imperial College NHS Healthcare Trust
London, , United Kingdom
Countries
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References
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Elghazaly H, Howard T, Sanjay S, Mohamed OG, Sounderajah V, Mehar Z, Davies AH, Jaffer U, Normahani P. Evaluating the prognostic performance of bedside tests used for peripheral arterial disease diagnosis in the prediction of diabetic foot ulcer healing. BMJ Open Diabetes Res Care. 2023 Mar;11(2):e003110. doi: 10.1136/bmjdrc-2022-003110.
Normahani P, Poushpas S, Alaa M, Bravis V, Aslam M, Jaffer U. Study protocol for a comparative diagnostic accuracy study of bedside tests used to detect arterial disease in diabetes: TEsting for Arterial disease in Diabetes (TrEAD) study. BMJ Open. 2020 Feb 5;10(2):e033753. doi: 10.1136/bmjopen-2019-033753.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
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17HH4091
Identifier Type: -
Identifier Source: org_study_id
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