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Predicting Wound Healing in the Diabetic Foot: Measuring Tissue Perfusion

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Management of Diabetic Foot Complications

Abstract

In patients with diabetic foot ulceration, the presence of peripheral arterial disease (PAD) significantly increases the risk of failure of wound healing and major lower limb amputation. Detecting PAD in people with diabetes can present a challenge. This chapter will discuss commonly used and emerging tests of perfusion, discussing the strengths and weaknesses and their role in clinical practice. Ankle brachial pressure index (ABPI) is of limited utility in patients with diabetic foot ulceration owing to vessel wall calcification. Digital arteries are often spared from the calcification seen in the tibial arteries meaning that absolute toe pressure or toe brachial pressure indices (TBPI) can be used to measure perfusion. Transcutaneous oxygen measurement (TcPO2) measures the levels of oxygen in the tissues below the skin and is an indirect measure of blood flow in the tissues. TcPO2 measurements can be affected by localised oedema, infection and inflammation which can reduce its reliability in some patients. Combining perfusion measures with other factors such as infection and wound characteristics allows for improved prediction of wound healing and/or major amputation.

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Correspondence to Robert J. Hinchliffe .

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Hinchliffe, R.J., Hopkins, L. (2023). Predicting Wound Healing in the Diabetic Foot: Measuring Tissue Perfusion. In: Shearman, C.P., Chong, P. (eds) Management of Diabetic Foot Complications. Springer, Cham. https://doi.org/10.1007/978-3-031-05832-5_5

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  • DOI: https://doi.org/10.1007/978-3-031-05832-5_5

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