Pressure Ulcer
Conditions
Brief summary
Pressure ulcers are common, distressing and expensive. Currently scoring systems and checks by nursing staff are carried out to assess a patient's risk of developing a pressure ulcer. The investigators would like to see whether non-invasive measurements can be taken from patients to predict who might be at risk of pressure ulcers to allow us to intervene and reduce the risk of it happening.
Detailed description
Pressure ulcers are common, distressing and expensive. Currently scoring systems and checks by nursing staff are carried out to assess a patient's risk of developing a pressure ulcer. The aim is to investigate whether non-invasive physiological measurements can be taken from patients to predict who might be at risk of pressure ulcers to allow us to intervene and reduce the risk.
Interventions
Measurements of blood flow, tissue oxygen saturation, temperature, pressure
Sponsors
Study design
Eligibility
Inclusion criteria
HEALTHY VOLUNTEERS: * Able to give consent * Male or female * Over the age of 18 years * No known peripheral vascular disease * No known tissue damage * Able to read and understand basic English language PATIENTS: * Able to give consent * Male or female * Over the age of 18 years * Either at risk (Braden scale \<17) or confirmed Category 1 or 2 PU or confirmed DTI * Well enough to attend lab without any attachments (IV fluids, IV medications, oxygen) * Able to transfer to bed with assistance of one * Able to read and understand basic English Language
Exclusion criteria
HEALTHY VOLUNTEERS: * Presence of tissue damage or ulceration in the foot * Known peripheral vascular disease * Known hypersensitivity to fixation tape * Presence of a pacemaker * Participants unable to or refusing to give informed consent PATIENTS: * Known hypersensitivity to fixation tape * Participants unable to or refusing to give informed consent * Unable to transfer to bed with assistance of one. * Requiring more than routine observations and requiring attachments (IV fluids, IV medications, oxygen) * Presence of a pacemaker
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Laser Doppler Flowmetry | 20 minutes | Laser light to assess perfusion of heel |
| Spectrometry | 20 minutes | Light spectrometry to assess tissue oxygen saturation of the heel |
| Impedance | 5 minutes | Measurement of oedema of the heel |
| Temperature | 5 minutes | Thermal image of heel to assess skin temperature |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Co-morbidities | 5 minutes | The presence of peripheral arterial disease, ischaemic heart disease, diabetes and previous pressure ulcers |
Countries
United Kingdom