17 In a study by Robinson et al., 20 it was observed that the primary reason for use of revascularization was the degree of ischemia and that there was a statistically significant revascularization benefit for patients with grade 3 ischemia, compared with a strong trend to benefit in patients at grades 1 and 2.
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WIfI classification: the Society for Vascular Surgery lower extremity threatened limb classification system, a literature review.
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