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  • Title: Renal vein extension during living-donor kidney transplantation in the era of hand-assisted laparoscopic living-donor nephrectomy.
    Author: Han DJ, Han Y, Kim YH, Song KB, Chung YS, Choi BH, Kwon TW, Cho YP.
    Journal: Transplantation; 2015 Apr; 99(4):786-90. PubMed ID: 25286054.
    Abstract:
    BACKGROUND: To evaluate retrospectively the clinical outcomes of living-donor kidney transplantations (LDKTs) using renal vein extension (RVE) for donor kidneys with short renal veins. METHODS: Between January 2007 and December 2010, a total of 576 LDKTs were performed with grafts generated by hand-assisted laparoscopic living-donor nephrectomy: 31 (5.4%) transplants with RVE and 545 (94.6%) without an additional vascular procedure for renal vein lengthening. Outcomes were compared in patients who did and did not undergo the RVE procedure during transplantation. RESULTS: The 31 transplantation patients that underwent RVE involved procured kidneys with short renal veins: 29 were right-sided kidneys (93.5%) and 2 were left-sided kidneys (6.5%) (P=0.00). The RVE grafts were obtained from allogenic gonadal veins from female donors (n=16, 51.6%) and iliac veins from deceased donors (n=15, 48.4%). There were no postoperative complications related to the RVE procedure. During a follow-up period of 45.6±15.9 months, there were one (3.2%) graft failure among the 31 patients with RVE and four (0.7%) among the 545 patients without RVE. Delayed graft function was noted in one (3.2%) of the RVE patients and 22 (4.0%) of the patients without RVE. There was no statistically significant difference in graft failure (P=0.24) or delayed graft function (P=1.00) between the two groups. CONCLUSION: During LDKT, donor kidneys with exceptionally short renal veins, which may result in unavoidable tension during renal vein anastomosis, may be modified by RVE, thus facilitating a secure anastomosis and reducing postoperative complications.
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