Case Studies

Case Study 1 – Venous and Arterial Insufficiency

This patient had an anterior lower leg wound and was diagnosed with venous insufficiency and arterial insufficiency. Over the course of 6 weeks the patient was given the standard of care and the wound healed 22% before halting. Often in scenarios like this, where a wound appears to be healing and then stops abruptly, complications other than vascular insufficiencies (ex. Infection) are suspected to be at fault. However, the image from the Kent device, taken during the initial assessment, shows that the wound bed has areas of sufficient oxygen saturation (46%) that are similar to the peri-wound area (55%) and areas of potentially insufficient oxygen saturation (21%). Oxygenation measures of the wound bed are not possible from the majority of vascular tests but are highly valuable to clinicians as the readings give a better understanding of a wound’s healing potential. In this case, areas of the wound indicating greater than 40% oxygenation did heal and t those lower (21%) did not heal fully before the 6 week point. The Kent image indicates that insufficient oxygen delivery, not infection or other complication, most likely prevented the wound from fully healing.

Case Study 2 – Venous Insufficiency

Patient diagnosed with a wound located on the right medial lower leg and venous insufficiency. This was a chronic wound that had been present for the past 3 years. Arterial studies had been completed previously and had negative results. Over a 4 week period where the patient was provided with the standard of care the wound increased in volume by 43%. The Kent Imaging device images highlight the possible differences in peri-wound oxygenation (63%) and wound bed oxygenation (23%). Many non-invasive peripheral arterial disease studies rely on the oxygenation of the surrounding area to indicate the oxygenation of the wound bed which is shown here to not be true. The variation between oxygenation of the wound bed oxygenation and the surrounding tissue may lead to false negative readings for other non-invasive peripheral arterial disease studies.

Case 3 – Healing Wound

This patient was diagnosed with venous insufficiency and had a left lateral ankle wound. Over a 6 week period the wound decreased in volume by 95%. The image from the Kent device shows a wound bed reading of 64% which corresponds with the wound healing well when given standard treatment. In this case, the image from the Kent Imaging device provides assurance to the clinician that there is sufficient oxygenation at the wound bed for healing to occur with conservative treatments.