Skin Layer Thickness and Shear Wave Elastography Changes Induced by Intensive Decongestive Treatment of Lower Limb Lymphedema.

Background: A detailed quantitative evaluation would be beneficial for management of patients with limb lymphedema. Methods and Results: In 47 patients with lower limb lymphedema at International Society of Lymphology clinical stage 2A (18 limbs), 2B (41 limbs), and 3 (13 limbs), we measured the limb circumference and thickness of epidermis, dermis, and subcutis layers with B-mode ultrasonography and subcutis elastic modulus with ultrafast shear wave velocity (ultrasound elastography) at 5 anatomical levels (M1 to M5) before and after a 3- to 5-day intensive decongestive therapy (IDT) session. Limb circumference and thickness of the epidermis, dermis, and subcutis were greater in the 72 limbs with lymphedema than in the 22 unaffected limbs before and after IDT. The affected limb volume was 10,980 [8458-13,960] mL before and 9607 [7720-11,830] mL after IDT (p < 0.0001). The IDT-induced change in subcutis thickness was -9 [-25 to 13]% (NS), -11 [-26 to 3]% (p = 0.001), -18 [-40 to -1]% (p < 0.0001), -15 [-35 to 3]% (p = 0.0003), and -25 [-45 to -4]% (p < 0.0001) and significantly correlated with the change in elastic modulus, which was 13 [-21 to 90]% (p = 0.004), 33 [-27 to 115]% (p = 0.0002), 40[-13 to 169]% (p < 0.0001), 9 [-36 to 157]% (p = 0.024), and -13 [-40 to 97]% (NS), respectively, at the M1, M2, M3, M4, and M5 levels. Intraobserver reproducibility was satisfactory for skin thickness and fairly good for elastography, but interobserver reproducibility was poor or unacceptable. Conclusions: IDT reduced the circumference and subcutis thickness of lower limbs with lymphedema and increased their elastic modulus, implying greater tissue stiffness probably due to fluid evacuation. Although subcutis thickness measurement proved to be reliable, technological and methodological improvements are required before ultrasonographic elastography can be used in clinical practice.

An Auto-Adjustable Night Garment to Control Early Rebound Effect of Edema Volume After Intensive Phase of Decongestive Lymphedema Therapy.

BACKGROUND: Lymphedema of the arm and/or hand is a well-established complication of breast cancer therapy. The objective of the study was to determine the interest of auto-adjustable MOBIDERM® Autofit night arm sleeve in controlling edema rebound effect in breast cancer-related lymphedema patients just after a successful intensive phase of decongestive lymphedema therapy (DLT). MATERIALS AND METHODS: This is a subgroup analysis of MARILYN Study, conducted on 40 patients after completion of intensive DLT. Patients were randomized in Night-user group (fitted with MOBIDERM Autofit device) or No night-user group (no night compression). For subgroups analysis, patients were defined as high responders (HR) if their lymphedema volume reduction during DLT was ≥35% or as low responders (LR) if it was below 35%. RESULTS: In HR subgroups (n = 16), the mean lymphedema volume variation between Day 0 and 30 was 28.4 mL in the night-user group versus 181.4 mL in the no night-user group. When adjusted to the loss of volume during DLT, 89% of the DLT benefit is maintained in HR night-user versus 54% in no night-user group. Between LR (24 patients), this mean volume variation was by 65.1 mL versus 54.9 mL in night-user and no night-user groups respectively between Day 0 and 30. CONCLUSION: Wearing MOBIDERM Autofit, on top of the day time hosiery, appears a promising way to control the early rebound effect during the maintenance phase especially in DLT-HR.