Abstract:
BACKGROUND:Following vascularized lymph node (VLN) transfer (VLNT), the VLN may be at a risk for sclerosis because of efferent lymphatic vessel obstruction. We developed a new technique to prevent VLN sclerosis via a prefabricated lympho-venous (LV) shunt. This study compared the treatment outcomes of single VLNT with prefabricated LV shunt, conventional multiple VLNTs, and conventional single VLNT. METHODS:Overall, 47 limbs of 45 patients that underwent VLNT for lower-extremity lymphedema (LEL) in late clinical stage II/III were divided into 3 groups: conventional single VLNT group (control; 21 limbs where 4 had primary LEL), multiple VLNTs group (13 limbs where 3 had primary LEL), and prefabricated LV shunt group (13 limbs where 4 had primary LEL). In the prefabricated LV shunt group, lymphaticovenular anastomosis between the efferent lymphatic vessel and small vein in the elevated VLN were performed simultaneously with VLNT. RESULTS:Although venous thrombosis at the anastomosis site was observed in 1 case, it was salvaged by re-anastomosis, and all VLNs survived. No other complications were observed. The LEL index significantly improved in the prefabricated LV shunt group compared with that in the control group (28.0 ± 1.7 vs 20.9 ± 1.5, P = 0.02). In the prefabricated LV shunt group, all VLNs survived functionally, and the average size of the transferred lymph nodes was significantly larger than that of the control group (5.7 ± 0.1 vs 4.3 ± 0.2 mm, P < 0.01). CONCLUSIONS:Prefabricated LV shunt may improve the efficacy of VLNT.
journal_name
Microsurgeryjournal_title
Microsurgeryauthors
Akita S,Yamaji Y,Tokumoto H,Sasahara Y,Kubota Y,Kuriyama M,Mitsukawa Ndoi
10.1002/micr.30234subject
Has Abstractpub_date
2018-03-01 00:00:00pages
270-277issue
3eissn
0738-1085issn
1098-2752journal_volume
38pub_type
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