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  • Title: A Systematic Stepwise Method to Perform a Supermicrosurgical Lymphovenous Anastomosis.
    Author: Rodriguez JR, Yamamoto T.
    Journal: Ann Plast Surg; 2022 May 01; 88(5):524-532. PubMed ID: 34670962.
    Abstract:
    BACKGROUND: Lymphovenous anastomosis (LVA) has become an increasingly common treatment for patients with extremity lymphedema. In this article, we present our current strategy for patient selection, preoperative planning, and a series of intraoperative clues that may help to perform a supermicrosurgical LVA. Technical considerations are presented using a systematic step-by-step method to make this procedure more reproducible and straightforward. PATIENTS AND METHODS: We conducted a review of patients operated between January 2015 and June 2018 using the aforementioned approach. Data were collected prospectively, and all procedures were performed by the senior author. Preoperative assessment included lymphoscintigraphy, indocyanine green lymphography, noncontrast magnetic resonance lymphography and high-frequency ultrasonography. Lymphovenous anastomosis was decomposed into a sequential 6-step approach considering the main aspects that determine a successful anastomosis. RESULTS: Lymphovenous anastomosis was performed in 229 patients, including 677 anastomoses. Median follow-up was 33 months (range, 13-51 months). A median of 3.1 (range, 1-7) LVA were performed on 2.7 (range, 1-6) incision sites per patient. Median time for dissection of lymphatic(s) and vein(s) was 8.7 minutes (1-18 minutes) with a median time of 27.2 minutes (range, 13-51 minutes) for a complete LVA. Lymphatic detection rate was 100% (677 of 677) and vein detection rate was 99.7% (675 of 677), with 31.0% (210 of 677) of reflux-free veins. For upper-extremity lymphedema (47 of 229; 20.6%), volume reduction was achieved in 100% (47 of 47) of the cases, with a median volume reduction rate of 67% (range, 7-93%). In lower-extremity lymphedema (182 of 229; 79.4%), volume reduction was achieved in 86.8% (158 of 182) of the cases, with a median volume reduction rate of 41% (range, 7-81%). Cellulitis episodes decreased from 2.1 to 0.2 episodes/year after LVA (P < 0.05). CONCLUSIONS: Acceptable success rates were obtained using a sequential strategy for planning and execution of supermicrosurgical LVA for secondary extremity lymphedema. We believe including a stepwise approach may help to simplify this procedure, especially for surgeons in their early practice.
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