Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2021
Utility of high-frequency ultrasound in assessing cutaneous edema in venous ulcer patients.
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Pragasam Shakthi, Kumari Rashmi, Munisamy Malathi, Mohan Thappa Devinder
Аннотация
BACKGROUND: High-frequency ultrasound (HFUS) using a 20 MHz probe is a non-invasive assessment tool. Its utility in dermatology for diagnosis of disease or for monitoring of treatment response in various dermatological conditions is still being explored. Edema secondary to venous hypertension is the main pathogenic factor in the development of venous leg ulcers. However, there is no objective method for assessment of degree of edema. In this study, we explore the utility of high-frequency ultrasound in assessing cutaneous edema and for monitoring its improvement with compression therapy among patients with venous ulcer.
MATERIALS AND METHODS: Twenty patients with venous ulcer were enrolled in the study. Measurement of cutaneous edema was done at baseline and after 2 weeks of compression therapy in all patients. The 3 levels of measurement were dorsum of foot (low site, L1), 4 cm proximal to the medial malleolus (middle site, L2), and the medial aspect of the calf between the medial malleolus and the knee (upper site, L3).
RESULTS: Baseline subepidermal low echogenic band (SLEB) measurements were 2.46 ± 0.69 mm, 2.94 ± 0.65 mm, and 2.66 ± 0.64 mm at L1, L2, and L3, respectively. There was a significant reduction in SLEB measurement after compression therapy ( p values 0.008, 0.002, and 0.003 at L1, L2, and L3, respectively). The mean percentage reduction in SLEB at level of medial malleolus (mid level - 29.61 ± 12.24) was higher than the other 2 sites (L1-22.45 ± 15.83 and L3 were 27.57 ± 12.34).
CONCLUSION: Cutaneous ultrasound aids in accurate assessment of level and severity of edema. Hence, it can be utilized in trials to objectively assess the adequacy of treatment for patients with venous insufficiency.
MATERIALS AND METHODS: Twenty patients with venous ulcer were enrolled in the study. Measurement of cutaneous edema was done at baseline and after 2 weeks of compression therapy in all patients. The 3 levels of measurement were dorsum of foot (low site, L1), 4 cm proximal to the medial malleolus (middle site, L2), and the medial aspect of the calf between the medial malleolus and the knee (upper site, L3).
RESULTS: Baseline subepidermal low echogenic band (SLEB) measurements were 2.46 ± 0.69 mm, 2.94 ± 0.65 mm, and 2.66 ± 0.64 mm at L1, L2, and L3, respectively. There was a significant reduction in SLEB measurement after compression therapy ( p values 0.008, 0.002, and 0.003 at L1, L2, and L3, respectively). The mean percentage reduction in SLEB at level of medial malleolus (mid level - 29.61 ± 12.24) was higher than the other 2 sites (L1-22.45 ± 15.83 and L3 were 27.57 ± 12.34).
CONCLUSION: Cutaneous ultrasound aids in accurate assessment of level and severity of edema. Hence, it can be utilized in trials to objectively assess the adequacy of treatment for patients with venous insufficiency.