305
Participants
Start Date
March 4, 2019
Primary Completion Date
October 18, 2019
Study Completion Date
October 18, 2019
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.
West Middlesex University Hospital, London
Imperial College NHS Healthcare Trust, London
Imperial College Healthcare NHS Trust
OTHER