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Purpose. The aim of this CAT (Critically Appraised Topic) was to check the validity of the results and applicability regarding the effectiveness of therapeutic ultrasound in increasing healing of lower extremity ulcers and to answer the question: In subjects that have lower extremity venous ulcers, does high-frequency therapeutic ultrasound improve healing rate compared to placebo? Method. We conducted an analysis of the article "Therapeutic Ultrasound for lower extremity venous ulcers, Cochrane Systematic Review" of Cullum, et al (2010). Results. The application of high-frequency therapeutic ultrasound could increase healing in patients with lower extremity venous ulcers, RR = 1.40 (95% CI 1.00 to 1.96). Conclusion. The use of therapeutic ultrasound to promote healing in lower extremity venous ulcers is neither endorsed nor discouraged.