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  • Title: A modified side-to-end lymphaticovenular anastomosis.
    Author: Yamamoto T, Yoshimatsu H, Narushima M, Seki Y, Yamamoto N, Shim TW, Koshima I.
    Journal: Microsurgery; 2013 Feb; 33(2):130-3. PubMed ID: 22976483.
    Abstract:
    BACKGROUND: Lymphaticovenular anastomosis (LVA) is a useful treatment for compression-refractory lymphedema with its effectiveness and minimal invasiveness. However, LVA requires supermicrosurgery, where lymphatic vessels with a diameter of 0.5 mm or smaller are anastomosed using 11-0 or 12-0 suture. To make LVA easier and safer, we adopted a modified side-to-end (S-E) anastomosis in LVA surgery. METHODS: We performed modified S-E LVAs in 14 limbs of female patients with lower extremity lymphedema (LEL). In modified S-E LVA, lateral windows with a length of 1.0 mm or longer were created on a lymphatic vessel and a vein, respectively, and side-to-side (S-S) anastomosis was established with 10-0 continuous suture. After completion of S-S anastomosis, the vein distal to the anastomosis site was ligated to prevent venous backflow and subsequent thrombosis at the anastomosis site. Lymphedematous volume was evaluated preoperatively and at postoperative 6 months using LEL index. RESULTS: All the 24 modified S-E anastomoses could be completed without difficulty or revision for anastomosis, and showed good patency after completion of anastomosis. Postoperatively, LEL indices significantly decreased compared with preoperative LEL index (255.9 ± 14.1 vs. 274.9 ± 22.2, P < 0.001). CONCLUSIONS: Modified S-E LVA can efficaciously divert lymph flows into venous circulation without performing supermicrosurgical anastomosis.
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