By: Karen Bauer, NP-C, CWS
How often should ankle-brachial indexes (ABIs) be repeated? If someone has a stage 3 pressure injury to the top of the foot, should compression be held on that extremity?
The Wound, Ostomy and Continence Nursing Society guidelines suggest ABIs every 3 months routinely, while the Society for Vascular Surgery guidelines recommend that post endovascular repair, ABIs are done at 6 and 12 months (then yearly). For open revascularization, surveillance studies can be at 3, 6, and 12 months. Ultimately, many factors play into this. If the ulcer is closing and the limb remains stable, you might forgo frequent ABIs, but if the ulcer is not closing, or the patient has new or persistent ischemic symptoms, you should check ABIs more frequently. As far as compression with a dorsal foot pressure injury is concerned, as long as arterial status has been ascertained, compression can be utilized. The original source of pressure should be removed (shoe? ankle-foot orthotic?). If there is a venous component, cautious compression will aid in ulcer resolution.